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First Revision No. 1510-NFPA 70-2015 [ Global Input ]
Change title of Article 400 to Flexible Cords and Flexible Cables
Submitter Information Verification
Submitter Full Name: CMP 6
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 17:01:44 EST 2015
Committee Statement
Committee
Statement:
This is being done to mirror the scope of the article in 400.1, and also to clear up any misconceptions that might lead one to believe that
this article covers the cable wiring methods addressed in Chapter three.
Response
Message:
Public Input No. 2460-NFPA 70-2014 [Article 400]
Ballot Results
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Brush, Edwin F.
Friedman, Samuel B.
Huddleston, Jr., Robert L.
Kent, Gerald W.
Laidler, William F.
Picard, Paul R.
Riedl, Kenneth
Smith, Michael W.
Stacey, John
Wall, Carl Timothy
Xerri, Mario
Zimnoch, Joseph S.
4/22/2015 10:39 AM
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First Revision No. 1519-NFPA 70-2015 [ Global Input ]
See attached file for renumbering in Articles 400 and 402
Supplemental Information
File Name
Description
Panel_6_Global_FR_1519_cjf_renumbering.docx
Submitter Information Verification
Submitter Full Name: CMP 6
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 13:25:27 EST 2015
Committee Statement
Committee
Statement:
This will make the NEC more user friendly by following an already established pattern that the .10 and .12 sections of an article is
uses permitted and uses not permitted, respectively.
Response
Message:
Public Input No. 4207-NFPA 70-2014 [Section No. 402.5]
Public Input No. 4210-NFPA 70-2014 [Section No. 402.3]
Public Input No. 796-NFPA 70-2014 [Section No. 400.7]
Public Input No. 804-NFPA 70-2014 [Section No. 402.11]
Ballot Results
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Brush, Edwin F.
Friedman, Samuel B.
Huddleston, Jr., Robert L.
Kent, Gerald W.
Laidler, William F.
Picard, Paul R.
Riedl, Kenneth
Smith, Michael W.
Stacey, John
Wall, Carl Timothy
Xerri, Mario
Zimnoch, Joseph S.
4/22/2015 10:39 AM
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First Revision No. 18-NFPA 70-2015 [ Global Input ]
See attached file of revised Table 110.26(A)(1).
Supplemental Information
File Name
Description
FR_18_edited.docx
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 04:30:01 EST 2015
Committee Statement
Committee
Statement:
This revision incorporates the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making Panels
1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview from
600 volts to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements
to be included relative to present trends.
The revision of this table brings in the voltage ranges and clearance distances from Table 110.34(A).
The correlation of SI units is consistent with other tables in Article 110 such as Table 110.34(A).
Editorially removed the word “as” from Condition 2.
Response
Message:
Public Input No. 688-NFPA 70-2014 [Section No. 110.26(A)(1)]
Public Input No. 2859-NFPA 70-2014 [Section No. 110.26(A)(1)]
Public Input No. 3262-NFPA 70-2014 [Section No. 110.26(A)(1)]
Public Input No. 1556-NFPA 70-2014 [Section No. 110.26(A)(1)]
Ballot Results
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
4/22/2015 10:39 AM
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First Revision No. 2128-NFPA 70-2015 [ Global Input ]
Annex C
1. Reorder existing Tables, as follows:
(1) C.5 becomes C.6
(2) C.5(A) becomes C.6(A)
(3) C.6 becomes C.5
(4) C.6(A) becomes C.5(A)
2. Insert new Tables C.7 and C.7(A), per attached, and renumber existing C.7 through C.12(A).
3. Update Table of Contents at beginning of Annex C.
Supplemental Information
File Name
Description
Table_C.7_2128_BC.docx
Table_C.7.A_2128_BC.docx
FR_2128_Table_C.7_edited.docx
FR_2128_Table_C.7A_edited.docx
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 17:18:18 EST 2015
Committee Statement
Committee
Statement:
Existing tables for LFNC-A and LFNC-B have been re-ordered, alphabetically.
The new Table C.7 and Table C.7(A) identify fills for LFNC-C to Annex C for both concentrically stranded conductors and compact
conductors.
Response Message:
Public Input No. 1069-NFPA 70-2014 [Annex C]
Public Input No. 1071-NFPA 70-2014 [Annex C]
Ballot Results
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
4/22/2015 10:39 AM
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Affirmative with Comment
Allen, David F.
The new Table C.7 and Table C.7(A) identify fills for LFNC-C to Annex C for both concentrically stranded conductors and compact conductors.
4/22/2015 10:39 AM
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First Revision No. 343-NFPA 70-2015 [ Global Input ]
Article 220 shall read:
Branch Circuit, Feeder, and Service Load Calculations
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 12:08:55 EST 2015
Committee Statement
Committee Statement: The proposed revisions enhance the clarity of the article.
Response Message:
Ballot Results
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
4/22/2015 10:39 AM
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First Revision No. 4508-NFPA 70-2015 [ Global Input ]
Edit title of Article 770
ARTICLE 770 Optical Fiber Cables and Raceways
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 14:09:28 EST 2015
Committee Statement
Committee
Statement:
CMP-16 edits the title of the article. Optical fiber raceways have been deleted from this article. This FIRST REVISION changes the title to
Article 770 back to the title it had from its introduction into the 1984 edition through the 1990 edition. When optical fiber raceways were added
to Article 770 in the1993 edition, the title was changed to Optical Fiber Cables and Raceways. Optical fiber raceways were removed from the
2014 edition (replaced by communications raceways) but the Article title was not changed. The Article title should accurately reflect the
contents of the Article.
The Panel recognizes that Article titles are the responsibility of the Correlating Committee and recommends that the Correlating Committee
concur with this FIRST REVISION.
Response
Message:
Public Input No. 208-NFPA 70-2014 [Article 770]
Ballot Results
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
4/22/2015 10:39 AM
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First Revision No. 4609-NFPA 70-2015 [ Global Input ]
830.110(A)(3)
(3) Innerduct for Low-Power Network-Powered Broadband Communications Cables. Listed plenum communications
raceway, listed riser communications raceway, and listed general-purpose communications raceway selected in accordance with Table
800.154(b) shall be permitted to be installed as innerduct in any type of listed raceway permitted in Chapter 3.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 14:20:33 EST 2015
Committee Statement
Committee Statement: In order to achieve consistency and parallelism, an innerduct section is added by CMP-16.
Response Message:
Public Input No. 236-NFPA 70-2014 [New Section after 830.110(A)(2)]
Ballot Results
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
4/22/2015 10:39 AM
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First Revision No. 4618-NFPA 70-2015 [ Global Input ]
830.113(H)
(H) Cable Trays. The following cables shall be permitted to be supported by cable trays:
(1) Types BLP, BMR, BLR, BM and BL
(2) Types BLP, BLR, and BL installed in:
a. Plenum communications raceways
b. Riser communications raceways
c. General-purpose communications raceways
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 15:41:28 EST 2015
Committee Statement
Committee
Statement:
CMP-16 adds a cable tray section that establishes parallelism with Articles 770, 800, 820 and 830 and is consistent with the requirements
of section 830.133(A)(1).
The recommendation by the submitter of PI-242 to insert the word “listed” in order to clarify that the only types of communications raceways
permitted are listed ones has not been incorporated into the first revision text of 830.113(C) because it would be redundant; the first
revision text of 830.110(A)(2) requires that communications raceways be listed.
Response
Message:
Public Input No. 242-NFPA 70-2014 [New Section after 830.113(H)]
Ballot Results
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
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First Revision No. 4626-NFPA 70-2015 [ Global Input ]
840.3(F)
(F) Other Communications Systems. As appropriate for the system involved, traditional communications systems shall comply with the
requirements of the following:
(1) Communications circuits — Article 800
(2) Radio and Television Equipment — Article 810
(3) Community Antenna Television and Radio Distribution Systems — Article 820
(4) Network-Powered Broadband Communications Systems — Article 830
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 18:13:57 EST 2015
Committee Statement
Committee
Statement:
CMP-16 adds a new section (F) to 840.3 to make it clear that article 840 is not intended to supersede or replace other chapter 8
articles that cover traditional communications systems.
Response
Message:
Ballot Results
10 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
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First Revision No. 4627-NFPA 70-2015 [ Global Input ]
840.3(G)
(G) Electrical Classification of Data Circuits and Cables. Sections 725.139(D)(1) and 800.133(A)(1)(c) shall apply to the electrical classification
of Class 2 and Class 3 circuits in the same cable with communications circuits.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 18:18:54 EST 2015
Committee Statement
Committee
Statement:
CMP-16 adds a new section. Sections 725.139(D)(1) and 800.133(A)(1)(c) permit class 2 and class 3 circuits to be run in the same cable
as communications circuits but requires the class 2 and class 3 circuits to be reclassified as communications circuits and be installed in
accordance with the requirements for communications circuits in Chapter 8.
Response
Message:
Public Input No. 1844-NFPA 70-2014 [New Section after 840.3(E)]
Ballot Results
11 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
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First Revision No. 4628-NFPA 70-2015 [ Global Input ]
840.44
840.44 Overhead (Aerial) Optical Fiber Cables.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 18:31:55 EST 2015
Committee Statement
Committee Statement: CMP-16 edits the title to 840.44.
Adding “aerial” establishes text parallel to the text in Articles 800, 820 & 830.
Response Message:
Ballot Results
12 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
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First Revision No. 4631-NFPA 70-2015 [ Global Input ]
840.45 Overhead (Aerial) Communications Wires and Cables. Section 800.44 shall apply to overhead (aerial) communications wires and
multipair communications cables.
840.46 Overhead (Aerial) Coaxial Cables. Section 820.44 shall apply to overhead (aerial) coaxial cables.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 18:45:42 EST 2015
Committee Statement
Committee
Statement:
CMP-16 provides new 840.45 and 46. In order to expand the coverage of Article 840, a series of first revisions recognize twisted pair
and coaxial cable based systems in addition to optical fiber based systems.
CMP-16 recognizes that in the submission PI-1849 the submitter intended to refer to 840.46 and not 820.46.
Response
Message:
Public Input No. 1849-NFPA 70-2014 [New Section after 840.44]
Ballot Results
13 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
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First Revision No. 4643-NFPA 70-2015 [ Global Input ]
VI. Premises Powering of Communications Equipment over Communications Cables
Informational Note: This Part addresses types of circuits intended to provide power over coaxial cables and communications wires and cables to
remote equipment, including systems such as Power over Ethernet (PoE). These premises-powering systems do not include circuits such as those
that provide plain old telephone services (POTS), traditional CATV services and similar legacy communications services.
840.160 Powering Circuits. Communications cables, in addition to carrying the communications circuit, shall also be permitted to carry circuits for
powering communications equipment. The communications cables and the powering circuits shall comply with 840.160(A), (B) and (C), as
applicable.
(A) Power Limitations. The power circuits shall comply with the requirements of Table 11(B) in Chapter 9 for voltage sources up to 60 V dc.
Informational Note: The 100 VA (100 W) power source maximum nameplate rating in Chapter 9, Table 11(B) is the same as the maximum power
rating for network-powered broadband communications systems in Table 830.15, the communications industry standard in ATIS-0600337.2010 and
UL 60950-21.
(B) Ampacity. The maximum current carried by each communications conductor shall conform to Table 840.160(A).
Informational Note: The ampacity of the small wire gauges used in communications cables are not included in the ampacity tables in Article 310.
(C) Installations of New Cables. New cables installed for carrying both communications and power, where the maximum adjusted ampacity of
conductors exceed the values in Table 840.160(A), shall be Type CMP-LP, CMR-LP or CM-LP, as applicable.
( D) Using Cables Without the “LP” Marking for Supplying Premises Power and Communications. New and existing cables without the “LP”
marking shall be permitted to connect to communications equipment that supplies communications and power in accordance with the voltage and
power limitations of Table 11(B) in Chapter 9 for voltage sources up to 60 V dc, provided that the maximum current supplied by the power source is
less than the adjusted ampacity of conductors in Table 840.160(A). For ambient temperatures other that 30°C (86°F) ampacity shall be permitted to
be adjusted per Table 310.15(B)(2)(a).
Table 840.160(A), Communications Conductor Ampacity Based on Copper Conductors at Ambient Temperature of 30°C (86°F), Conductor
Temperature 60° C (140° F)
Supplemental Information
File Name
Description
840_160A_FR4643_final.docx
Table 840.160(A)
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 08:02:42 EST 2015
Committee Statement
14 of 1802
Committee The new Part VI accommodates power over Ethernet (PoE) and other powering systems that provide power over the data communications
Statement: cables. PoE is widely used with communications circuits and each successive revision of the PoE standards delivers more power to the
powered devices raising concern about overheating of the cables. Bundling and bunching of cables carrying power to communications
equipment can result in heating. No conductor (or cable) should be used in such a manner that its operating temperature exceeds the
maximum temperature it was rated for. Sections 770.179 and 800.179 require that optical fiber cables and communications cables have a
temperature rating of not less than 60°C (140°F). Where cables carrying communications and power are installed, cables rated for
temperatures above 60°C (140°F) may be required. How much higher is dependent on many factors, including ambient temperature, spacing
and ventilation among cable bundles and bunches, wire gauge and power being dissipated in the cables.
The new Part VI provides for the use of new cables with properties chosen to be safe in worst-case installation conditions. The listing
requirements for these cables are in 840.170. Similar to CMP-CI, CMR-CI and CM-CI cables, the new cables are marked Types CMP-LP,
CMR-LP and CM-LP. These cables are listed to have adequate ampacity (wire gauge) and temperature rating for worst-case ambient thermal
conditions e.g., a hot attic, and worst case heating produced by the maximum permissible current being carried by the cables.
The Part VI also permits for the use of new non-LP marked cables and previously installed cables provided the current is limited so that the
cables do not overheat.
Ampacity values in Table 840.160(a) were derived based on review of Reference Data for Engineers: Radio, Electronics, Computer and
Communications, 7th Ed., and NFPA 79, 12.5.1. Adjustments were made considering Article 522 of the NEC, and other sources
CMP-16 chooses not the include Information Note No. 2 with reference to http://wiki.xtronics.com/index.php/Wire-Gauge_Ampacity as
provided by the submitter. Data does not necessarily add value to the data in Table 840.160(A). Changes made by CMP-16 meet the intent of
the submitter.
Response
Message:
Public Input No. 1861-NFPA 70-2014 [New Section after 840.154]
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Ballot Results
15 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
14 Affirmative All
2 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Zieman, Leo
Affirmative with Comment
Ivans, Randolph J.
We agree with the addition of this new section in Article 840. However, the structure and wording of 840.160 are confusing. For example, except for the
temperature adjustment information, “(D)” is just a repetition of “(A)” and “(B)”. “(B)” says you have to meet current limits then “(C)” says you don’t. In
addition, there needs to be current limitations included for the type –LP cables even though they may be higher than permitted by Table 840.160(A). Finally,
since Chapter 9, Table 11(B) has limitations for maximum power and current and rated power and current, these need to be identified in the text. Suggested
revisions are as follows: 840.160 Powering Circuits. Communications cables, in addition to carrying the communications circuit, shall also be permitted to
carry circuits for powering communications equipment. The communications cables and the powering circuits shall comply with 840.160(A), (B) and (C). (A)
Maximum Power and Current Limitations. The maximum power (VAmax) and current (Imax) limitations of the powering circuits shall comply with the Class
2 requirements of Table 11(B) in Chapter 9 for voltage sources up to 60 V dc. (B) Rated Power. The maximum rated power of the powering circuit shall
comply with the Class 2 requirements of Table 11(B) in Chapter 9 for voltage sources up to 60 V dc. Informational Note: The 100 VA (100 W) power source
maximum nameplate rating in Chapter 9, Table 11(B) is the same as the maximum power rating for network-powered broadband communications systems
in Table 830.15, the communications industry standard in ATIS-0600337.2010 and UL 60950-21. (C) Rated Current. The maximum rated current of the
power source that may be carried by each communications cable conductor shall conform to 840.160(C)(1) or 840.160(C)(2). Informational Note: The
ampacity of the small wire gauges used in communications cables are not included in the ampacity tables in Article 310. (1) Installations of New Cables.
New cables type CMP-LP, CMR-LP or CM-LP, as applicable, installed for carrying both communications and power, shall be supplied by a power source
with a maximum current rating that is less than the maximum adjusted ampacity of the conductors in Table 840.160(XX). For ambient temperatures other
that 30°C (86°F) ampacity shall be permitted to be adjusted per Table 310.15(B)(2)(a). (2) New and Existing non-LP Cables. New and existing cables
without the “LP” marking shall be permitted to connect to communications equipment that supplies communications and power provided that the maximum
current supplied by the power source is less than the adjusted ampacity of conductors in Table 840.160(A). For ambient temperatures other that 30°C
(86°F) ampacity shall be permitted to be adjusted per Table 310.15(B)(2)(a).
McCoy, William J.
Table 840.160(A) is missing from the FR. Also, The ampacities for other than 30?C temperature ratings need to be addressed and requires additional
research. Definition of separation and wiring methods must be addressed as part of the ratings. Applications will be such that temperatures other than 30
degrees C will be encountered.
Negative with Comment
Prezioso, Luigi G.
While there is a potential issue with the overheating of cables that are powering network devices, there was no evidence of an existing safety hazard
presented, and therefore no justification for an entirely new cable listing. The development of the requirements is not based on solid evidence and needs
further investigation prior to being made part of the Code. The requirement to use the "LP" in new installations "New cables installed for carrying both
communications and power, where the maximum adjusted ampacity of conductors exceed the values in Table 840.160(A), shall be Type CMP-LP, CMR-LP
or CM-LP, as applicable." requires the infrastructure designers to determine "the maximum adjusted ampacity of conductors" at the time the infrastructure
design is completed. This is potentially years before the network design has been completed and possibly before a new, future networking solution has
even been identified.
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First Revision No. 4683-NFPA 70-2015 [ Global Input ]
800.182 Cable Routing Assemblies and Communications Raceways.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Sat Jan 17 09:32:19 EST 2015
Committee Statement
Committee Statement: CMP-16 revises the title to clarify that “communications” does not modify “cable routing assemblies”.
Response Message:
Ballot Results
16 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
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First Revision No. 4803-NFPA 70-2015 [ Global Input ]
Add "and labeled" after "listed" in the following sections
422.15(A)
422.50
426.54
680.23(A)(2)
680.24(A)(1)
680.42(A)
680.42(B)
680.43
680.43(D)
680.44(A)
680.62(A)(1)
Submitter Information Verification
Submitter Full Name: CMP 17
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 13:17:39 EST 2015
Committee Statement
Committee
Statement:
This revision clarifies certain equipment must be “listed and labeled” instead of just “listed.” Listing agencies do not consider a product
to be Listed unless the Label has actually been applied.
Response
Message:
Public Input No. 931-NFPA 70-2014 [Section No. 680.42(A) [Excluding any Sub-Sections]]
Public Input No. 909-NFPA 70-2014 [Section No. 422.15(A)]
Public Input No. 910-NFPA 70-2014 [Section No. 422.50]
Public Input No. 911-NFPA 70-2014 [Section No. 426.54]
Public Input No. 929-NFPA 70-2014 [Section No. 680.23(A)(2)]
Public Input No. 930-NFPA 70-2014 [Section No. 680.24(A)(1)]
Public Input No. 932-NFPA 70-2014 [Section No. 680.42(B)]
Public Input No. 933-NFPA 70-2014 [Section No. 680.43 [Excluding any Sub-Sections]]
Public Input No. 934-NFPA 70-2014 [Section No. 680.43(D)]
Public Input No. 935-NFPA 70-2014 [Section No. 680.44(A)]
Public Input No. 936-NFPA 70-2014 [Section No. 680.62(A)(1)]
Ballot Results
17 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Blewitt, Thomas V.
Cook, Donald R.
Hamilton, III, E. P.
Hunter, Randal
Jhonson, Don W.
Krepps, Rachel E.
Querry, Dennis Michael
Sandberg, Chester L.
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Shell, Kenneth M.
Swim, Peter C.
Williams, Matt B.
Yasenchak, Randy J.
Negative with Comment
Schapp, Ronald F.
A requirement that all listed equipment be labeled with the listing organization's mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying," Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product." The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). it is not for CMP 17 to decide to override an official definition. In addition it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization's mark, CMP 17 would be dictating the
business practices of the listing organizations without a clear statement of need, against the advice contained in the Informational note to the definition.
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First Revision No. 5438-NFPA 70-2015 [ Global Input ]
Change title of Article 555 to read:
Marinas, Boatyards, and Noncommerical Docking Facilities
Submitter Information Verification
Submitter Full Name: CMP 19
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 21:03:58 EST 2015
Committee Statement
Committee The title of article 555 is revised to reflect the expansion of the scope proposed in PI 1373. The panel also recognizes that the NEC
Statement: Correlating Committee has jurisdiction over article scopes and titles and will have input as to the merits of the proposal and resulting panel
actions. The majority of the rules in Article 555 would also be necessary for residential boat docks associated with one-family and multi-family
dwelling occupancies. The electrical hazards are the same in these associated aquatic environments. This proposal intends to resolve this
issue by providing users with the ability to apply these requirements to all wiring equipment and systems installed in boat docking facilities for
noncommercial and commercial and industrial applications. Rather than propose a new article for boat docking facilities associated with
one-family dwellings, the revision broadens the scope and retains consistency in the electrical rules that should be applied to these
environments that present the same electrical hazards. Producing a separate article would result in unnecessary redundancy in the NEC.
Response
Message:
Public Input No. 1374-NFPA 70-2014 [Article 555]
Ballot Results
19 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bajwa, Aisha
Bauman, Barry S.
Chilton, Ron B.
Garcia, Robert A.
Goodsell, John P.
Hyer, Ryan
Johnson, David W.
Lichtenstein, Thomas R.
Mulvaney, Doug
Sumbera, Darrell M.
Thierheimer, Thomas F.
Weaver, Jr., Ronald D.
Zipse, Donald W.
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First Revision No. 604-NFPA 70-2015 [ Global Input ]
Table 300.5
Edit first row in table, change notes heading to General Notes, and add text to bottom of table - see attachment.
a
A lesser depth shall be permitted where specified in the installation instructions of a listed low voltage lighting system
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 10:21:08 EST 2015
Committee Statement
Committee
Statement:
UL 1838 (Standard for Safety for Low Voltage Landscape Lighting Systems) permits the use of junior and hard service cords that are not
rated for direct burial. As such, UL 1838 requires that the installation instructions inform the installer that the main secondary wiring is
intended for shallow burial - less than 6 inches (152 mm) - unless the manufacturer has provided wiring intended for direct burial.
This appears to create a conflict between Sections 110.3(B) and Table 300.5 column 5 row 1 since the installation instructions of listed
equipment are to be followed; per UL 1838 a conductor not identified as direct burial is to be buried less than 6 inches, but Table 300.5
column 5 row 1 requires low voltage landscape lighting conductors to be buried at a minimum of 6 inches.
Relabeling “Note” to “General Note” follows the format already addressed in Table 300.50 for similar applications and making the new
“Footnote” to be “Specific Footnote” addresses the application indicated by UL 1838 where the cable type and installation requirements of the
manufacturer take precedence, rather than a general requirement of 6 inch burial depth. The proposed footnote to column 5, row 1 will
eliminate the conflict between Table 300.5 for Listed landscape lighting systems that present no significant risk of fire or electric shock injury
and are intended to be easily accessed for repair or replacement.
Response
Message:
Public Input No. 1294-NFPA 70-2014 [Section No. 300.5(A)]
Ballot Results
20 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
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Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 622-NFPA 70-2015 [ Global Input ]
725.3(M)
(M) Cable Routing Assemblies. Class 2, Class 3 and Type PLTC cables shall be permitted to be installed in plenum cable routing assemblies,
riser cable routing assemblies, and general-purpose cable routing assemblies selected in accordance with the provisions of Table 800.154(c),
listed in accordance with the provisions of 800.182, and installed in accordance with the provisions of 800.110(C) and 800.113.
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 13:14:29 EST 2015
Committee Statement
Committee
Statement:
CMP-3 adds a new 725.3(M) to provide consistency in the selection, listing and installation requirements for cable routing assemblies
and communications raceways.
Response
Message:
Public Input No. 205-NFPA 70-2014 [New Section after 725.3(L)]
Public Input No. 305-NFPA 70-2014 [Global Input]
Ballot Results
22 of 1802
This item has passed ballot
15 Eligible Voters
1 Not Returned
12 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Bassett, Douglas P.
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Affirmative with Comment
Brewer, Larry G.
I agree with the statements of the committee
Stene, Susan L.
Cable routing assemblies can be used for routing of Class 2, Class 3, and Type PLTC cables from one location to another location as indicated in Article
725 already. Inserting permission for this routing into 725.3(M), designed to refer the user to select applications for routing assemblies based on Table
800.154(c), listing requirements in 800.182, and installation requirements in 800.110(C) and 800.113, may be inappropriate as well as misleading for the
user of the NEC. For example, the reference in 800.110(C) is for the installation of communications wires and cables in routing assemblies, not Class 2,
Class 3, or PLTC cables. Section 800.113 applies installation requirements for communications wires, cables and raceways, and cable routing assemblies
as applicable in 800.113(A) through (L), where all the requirements are applicable to CM cables of various types, such as CMP, CMR, or CM cables. These
applications, listing requirements, and installation requirements are not applicable to Class 2, Class 3, or PLTC cables, only communications wires and
cables. A new table for Article 725 should be developed similar to the information provided in Table 800.154(c). The other references based on Article 800
information should be used to provide similar text for Article 725, where appropriate.
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First Revision No. 623-NFPA 70-2015 [ Global Input ]
725.3(N)
(N) Communications Raceways. Class 2, Class 3 and Type PLTC cables shall be permitted to be installed in plenum communications raceways,
riser communications raceways and general-purpose communications raceways selected in accordance with the provisions of Table 800.154(b),
listed in accordance with the provisions of 800.182, and installed in accordance with the provisions of 800.113 and 362.24 through 362.56, where
the requirements applicable to electrical nonmetallic tubing (ENT) apply.
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 13:16:21 EST 2015
Committee Statement
Committee
Statement:
CMP-3 adds a new 725.3(N) to provide consistency in the selection, listing and installation requirements for cable routing assemblies
and communications raceways.
Panel 3 accepts the text that was proposed in PI-206 rather than the text proposed in PI-317 and addresses the provision for listing of
communications raceways and cable routing assemblies in 800.182.
Response
Message:
Public Input No. 206-NFPA 70-2014 [New Section after 725.3(L)]
Public Input No. 317-NFPA 70-2014 [Global Input]
Ballot Results
23 of 1802
This item has passed ballot
15 Eligible Voters
1 Not Returned
12 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Bassett, Douglas P.
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Affirmative with Comment
Brewer, Larry G.
I agree with the statements of the committee
Stene, Susan L.
Cable routing assemblies can be used for routing of Class 2, Class 3, and Type PLTC cables from one location to another location as indicated in Article
725 already. Inserting permission for this routing into 725.3(M), designed to refer the user to select applications for routing assemblies based on Table
800.154(c), listing requirements in 800.182, and installation requirements in 800.110(C) and 800.113, may be inappropriate as well as misleading for the
user of the NEC. For example, the reference in 800.110(C) is for the installation of communications wires and cables in routing assemblies, not Class 2,
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Class 3, or PLTC cables. Section 800.113 applies installation requirements for communications wires, cables and raceways, and cable routing assemblies
as applicable in 800.113(A) through (L), where all the requirements are applicable to CM cables of various types, such as CMP, CMR, or CM cables. These
applications, listing requirements, and installation requirements are not applicable to Class 2, Class 3, or PLTC cables, only communications wires and
cables. A new table for Article 725 should be developed similar to the information provided in Table 800.154(c). The other references based on Article 800
information should be used to provide similar text for Article 725, where appropriate.
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First Revision No. 644-NFPA 70-2015 [ Global Input ]
Change NFPA 262-2011 to NFPA 262-2015 throughout Articles 300, 590, 720, 725, 727, 728, 760, Chapter 9, Tables 11(A) and (B), and
Tables 12(A) and (B).
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 16:11:44 EST 2015
Committee Statement
Committee
Statement:
NFPA 262-2015 will be issued during the revision process of the NEC. NFPA 262 is referenced in numerous places in Chapters 7 & 8.
CMP-3 updates the document number and date of NFPA 262. CMP-3 realizes it’s purview is limited to Articles 300, 590, 720, 725, 727,
728, 760, Chapter 9, Tables 11(A) and (B), and Tables 12(A) and (B); as such, CMP-3 requests the CC apply the revision to the remainder
of the code.
Response
Message:
Public Input No. 485-NFPA 70-2014 [Global Input]
Ballot Results
25 of 1802
This item has passed ballot
15 Eligible Voters
1 Not Returned
13 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Bassett, Douglas P.
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statements of the committee
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First Revision No. 7508-NFPA 70-2015 [ Global Input ]
Change CSA C22.2 No.0.3-XX to CSA C22.2 No. 0.3-0.9 throughout Articles 770, 800, 810, 820, 830, and 840.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 15:25:55 EST 2015
Committee Statement
Committee
Statement:
CMP-16 updates the document number and date of CSA C22.2 No. 0.3-09. CMP-16 realizes it’s purview is limited to Articles 770, 800,
810, 820, 830, 840; as such, CMP-16 requests the CC apply the revision to the remainder of the code.
Response
Message:
Ballot Results
26 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
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First Revision No. 7516-NFPA 70-2015 [ Global Input ]
In Article 694, change the term "small wind" to "wind" in the following Sections:
694.7(C)
694.7(D)
694.12(B)(1)
694.15(C)
694.18(C)
694.20
694.22(C)(1)
694.22(C)(1)
[end of list].
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
National Fire Protection Assoc
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Feb 02 10:11:37 EST 2015
Committee Statement
Committee Statement: These editorial corrections remove the word "small" that was inadvertently left in the 2014 code.
Response Message:
Public Input No. 3868-NFPA 70-2014 [Global Input]
Ballot Results
27 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
Affirmative with Comment
Buchal, Thomas E.
Last entry is repeated.
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First Revision No. 1840-NFPA 70-2015 [ Detail ]
New list item in 336.10 Uses Permitted:
(9) In one- and two-family dwelling units, Type TC-ER cable containing both power and control conductors that is identified for pulling through
structural members shall be permitted to be installed between a power inlet box or permanently installed generator and the transfer equipment.
Type TC-ER cable used as exterior wiring shall be installed per the requirements of Part II of Article 340. Type TC-ER cable used as interior wiring
shall be installed per the requirements of Part II of Article 334
Informational Note to (9): TC-ER cable that is suitable for pulling through structural members is marked with “JP”
Supplemental Information
File Name
Description
FR_1840_edited.docx
edited text for SL review
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 10:02:56 EST 2015
Committee Statement
Committee
Statement:
This is limited to dwelling units, since nonmetallic-sheathed wiring methods are common in dwelling unit wiring. Raceways and metallic
armored cables are common in commercial installations, and can have similar conductor configurations as that proposed by the public input
submitter. This revised language permits type TC-ER that passes an additional pulling through joists test. This test and marking will need to
be added to the product standard.
Response
Message:
Public Input No. 1116-NFPA 70-2014 [Section No. 336.10]
Public Input No. 4359-NFPA 70-2014 [Section No. 336.10]
Ballot Results
28 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
9 Affirmative All
1 Affirmative with Comments
3 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
La Dart, Samuel R.
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Williams, David A.
Affirmative with Comment
Wheeler, Wesley L.
If Type TC-ER is approved for use in this application in dwelling units, it would seem also then that other equipment connections such as split
systems/HVAC units should be able to use this wiring method if installed properly and protected from physical damage.
Negative with Comment
Hunter, Christel K.
Type TC Cable, which is primarily designed for use in cable tray, is also allowed for direct burial and concrete encasement where so listed, and an
exception for generator installations in residential occupancies is unnecessary. Installation in cable tray, conduit, direct burial and concrete encasement are
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all possible in residential installations.
Mercier, Charles David
Type TC Cable is limited to installations in cable trays, raceways and outdoor locations supported by a messenger wire. Article 336 for Type TC Cable also
contains special allowances for industrial installations. Type TC Cable, which is primarily designed for use in cable tray, should not take exception to
installation in conduit (or cable tray) for residential installations even with additional joist pull testing.
Straniero, George A.
TC Cable is designed and listed for use in cable trays, raceways, supported by a messenger wire and for direct burial. It is only permitted to be exposed
(TC-ER: NEC 336.10(7)) in industrial establishments where the conditions of maintenance and supervision ensure that only qualified persons service the
installation. There are several wiring methods that are permitted by the NEC for the installation of generators and transfer switches in residential and
commercial locations including Type TC installed in accordance with Article 336 such as in raceway or direct buried.
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First Revision No. 3414-NFPA 70-2015 [ Detail ]
In the informational note at the top of Article 645, update the reference to NFPA 75 to be the 2016 edition. The final text should read:
Informational Note: Text that is followed by a reference in brackets has been extracted from NFPA 75-2016 , Standard for the Protection of
Information Technology Equipment. Only editorial changes were made to the extracted text to make it consistent with this Code.
Submitter Information Verification
Submitter Full Name: CMP 12
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 16:28:15 EST 2015
Committee Statement
Committee Statement: The latest edition of NFPA 75 should be referenced.
Response Message:
Public Input No. 519-NFPA 70-2014 [Article 645]
Ballot Results
30 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Belio, Frank Anthony
Affirmative All
Brown, Thomas R.
Brown, James L.
Clark, Philip
Cline, Scott
Cunningham, Karl M.
Greenwood, Jody B.
Holmes, Jeffrey L.
Johnson, Robert E.
Kaufman, Stanley
Kovacik, John R.
Lottmann, Todd F.
Menig, Jeffrey S.
Schamel, Duke W.
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First Revision No. 4842-NFPA 70-2015 [ Detail ]
Change the title of 424.41 to
Ceiling Installation of Heating Cables on Dry Board, in Plaster, and on Concrete
Submitter Information Verification
Submitter Full Name: CMP 17
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 13 21:48:59 EST 2015
Committee Statement
Committee Statement: This revision clarifies that all of 424.41 applies to ceiling installations.
Response Message:
Public Input No. 4209-NFPA 70-2014 [Section No. 424.41]
Ballot Results
31 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Blewitt, Thomas V.
Cook, Donald R.
Hunter, Randal
Jhonson, Don W.
Krepps, Rachel E.
Querry, Dennis Michael
Sandberg, Chester L.
Schapp, Ronald F.
Swim, Peter C.
Williams, Matt B.
Yasenchak, Randy J.
4/22/2015 10:39 AM
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First Revision No. 7501-NFPA 70-2015 [ Detail ]
Replace existing Figure 690.1(b) with attached file 690.1 FR 7501 CDC Figure 690-1b.
Supplemental Information
File Name
Description
690.1_FR_7501_CDC_Figure_690-1b.pdf
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 13:58:13 EST 2015
Committee Statement
Committee
Statement:
This revises the existing diagrams to more accurately represent the nomenclature of PV systems. Also, with the introduction of the PV
System Disconnecting Means in 690.13, there is a need to clarify where that disconnecting means is located in the system. These diagrams
provide the detail necessary to clarify location of these disconnects. The diagrams have been modified for consistency with the revisions in
Article 690. The ac module system diagram is moved from Figure 690.1(a).
Response
Message:
Public Input No. 1164-NFPA 70-2014 [Section No. 690.2 [Excluding any Sub-Sections]]
Ballot Results
32 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 7502-NFPA 70-2015 [ Detail ]
Add the following Informational Note to 445.10:
Informational Note: See NFPA 37, Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines for
information on the location of generator exhaust.
Submitter Information Verification
Submitter Full Name: CMP 13
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 15:08:39 EST 2015
Committee Statement
Committee
Statement:
Where the NEC addresses the permanent installation of combustible engine driven generators, it is prudent to reference NFPA 37.
Prescriptive requirements for generator exhaust is under the purview of NFPA 37 and any proposed changes should be directed to that
committee.
Response
Message:
Public Input No. 4587-NFPA 70-2014 [Section No. 445.10]
Ballot Results
33 of 1802
This item has passed ballot
20 Eligible Voters
1 Not Returned
19 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Paulsen, Shawn
Affirmative All
Adams, Martin D.
Brady, Brian B.
Caron, Daniel J.
Conrad, James S.
Croushore, Timothy M.
Currin, Jr., Richard D.
Czarnecki, Neil A.
Daugherty, Herbert H.
Degnan, James E.
Froemming, Steven F.
Keenan, Ronald A.
Little, Linda J.
Neeser, Daniel R.
Ode, Mark C.
Rodriguez, Arnoldo L.
Savage, Sr., Michael L.
Spina, Mario C.
Tobias, Jr., David
White, James R.
4/22/2015 10:39 AM
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First Revision No. 7503-NFPA 70-2015 [ Detail ]
Make the following changes to Informational Note for Article 770:
Informational Note: The general term grounding conductor as previously used in this article is replaced by either the term bonding conductor or the
term grounding electrode conductor (GEC), where applicable, to more accurately reflect the application and function of the conductor.
See Figure Informational Note Figure 800(a)Informational Note Figure 800(a) and Figure Informational Note Figure 800(b)Informational Note Figure
800(b) for illustrative application of a bonding conductor or grounding electrode conductor.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 17:04:52 EST 2015
Committee Statement
Committee
Statement:
The basic informational note was included in the NEC 2011 Edition as a temporary measure to alert the NEC user to a major change in
terminology. Sufficient time has passed for the NEC user to become familiar with the new terminology and the informational note is revised.
The second sentence of the informational note figure remains informative and is retained.
Response
Message:
Public Input No. 2472-NFPA 70-2014 [Article 770 [Excluding any Sub-Sections]]
Ballot Results
34 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
4/22/2015 10:39 AM
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First Revision No. 7504-NFPA 70-2015 [ Detail ]
Make the following changes to Informational Note for Article 800:
Informational Note: The general term grounding conductor as previously used in this article is replaced by either the term bonding conductor or the
term grounding electrode conductor (GEC), where applicable, to more accurately reflect the application and function of the conductor. See Figure
Informational Note Figure 800(a) and Figure Informational Note Figure 800(b) that illustrate the application of bonding and grounding electrode
conductors in communications installations.
Figure captions:
Figure Informational Note Figure 800(a) Example of the Use of the Term Illustration of a Bonding Conductor Used in a Communications Installation.
Figure Informational Note Figure 800(b) Example of the Use of the Term Illustration of Grounding Electrode Conductor Conductor Used in a
Communications Installation.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 17:17:03 EST 2015
Committee Statement
Committee
Statement:
CMP-16 revises text of both Informational Note Figure 800(a) and Informational Note Figure 800 (b) to add clarity.
This Informational Note was included in the NEC 2011 as a temporary measure to alert the NEC user to a major change in
terminology.
The figures remain informative and are retained with revised titles that de-emphasize the change in terminology.
Response Message:
Public Input No. 2473-NFPA 70-2014 [Article 800 [Excluding any Sub-Sections]]
Ballot Results
35 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
Affirmative with Comment
4/22/2015 10:39 AM
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Brunssen, James E.
The words “See” and “that” are superfluous. The informational note should read: “Informational Note: Informational Note Figure 800(a) and Informational
Note Figure 800(b) illustrate the application of bonding and grounding electrode conductors in communications installations." The caption for Informational
Note Figure 800(b) is correct in the FR, but is incorrect as shown in the TeraView version of the document. It should state: “Informational Note Figure
800(b) Illustration of Grounding Electrode Conductor in a Communications Installation.”
4/22/2015 10:39 AM
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First Revision No. 7505-NFPA 70-2015 [ Detail ]
Make the following changes to Informational Note for Article 810:
Informational Note: The general term grounding conductor as previously used in this article is replaced by either the term bonding conductor or the
term grounding electrode conductor (GEC), where applicable, to more accurately reflect the application and function of the conductor. See
Informational Note Figure 800(a) and Informational Note Figure 800(b) for an illustrative application of a bonding conductor or grounding electrode
conductor.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 17:33:20 EST 2015
Committee Statement
Committee
Statement:
The basic informational (IN) note was included in the NEC 2011 Edition as a temporary measure to alert the NEC user to a major change
in terminology. Sufficient time has passed for the NEC user to become familiar with the new terminology and the IN is removed. New
Informational Note text is added to reference Figures in Article 800 so the explanation still exists.
Response
Message:
Public Input No. 2474-NFPA 70-2014 [Article 810 [Excluding any Sub-Sections]]
Ballot Results
37 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
4/22/2015 10:39 AM
National Fire Protection Association Report
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First Revision No. 7506-NFPA 70-2015 [ Detail ]
Make the following changes to Informational Note in Article 820:
Informational Note: The general term grounding conductor as previously used in this article is replaced by either the term bonding
conductor or the term grounding electrode conductor (GEC), where applicable, to more accurately reflect the application and function of
the conductor. See Figure Informational Note Figure 800(a) and Figure Informational Note Figure 800(b) for an illustrative application of
a bonding conductor or grounding electrode conductor.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 18:07:26 EST 2015
Committee Statement
Committee
Statement:
Since part of the Informational Note is being retained the title should remain. The basic informational (IN) note was included in the NEC
2011 Edition as a temporary measure to alert the NEC user to a major change in terminology. Sufficient time has passed for the NEC user
to become familiar with the new terminology and the IN is revised. The second sentence of the IN remains informative and should be
retained.
Response
Message:
Public Input No. 2475-NFPA 70-2014 [Article 820 [Excluding any Sub-Sections]]
Ballot Results
38 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
4/22/2015 10:39 AM
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First Revision No. 7507-NFPA 70-2015 [ Detail ]
Make the following changes to Informational Note in Article 830:
Informational Note: The general term grounding conductor as previously used in this article is replaced by either the term bonding
conductor or the term grounding electrode conductor (GEC), where applicable, to more accurately reflect the application and function of
the conductor.
See Figure Informational Note Figure 800(a) and Figure Informational Note Figure 800(b) for an illustrative application of a bonding
conductor or grounding electrode conductor.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 18:12:23 EST 2015
Committee Statement
Committee
Statement:
CMP-16 edits the Informational Note. The basic informational note was included in the NEC 2011 Edition as a temporary measure to alert
the NEC user to a major change in terminology. Sufficient time has passed for the NEC user to become familiar with the new terminology
and the informational note is removed. The second sentence of the informational note figure remains informative and should be retained.
Response
Message:
Public Input No. 2476-NFPA 70-2014 [Article 830 [Excluding any Sub-Sections]]
Ballot Results
39 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
4/22/2015 10:39 AM
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First Revision No. 7513-NFPA 70-2015 [ Detail ]
Make the following change to the Informational Note under Article 517's title:
Informational Note: Text that is followed by a reference in brackets has been extracted from NFPA 99-20122015, Health Care Facilities
Code, and NFPA 101-2012, Life Safety Code. Only editorial changes were made to the extracted text to make it consistent with this Code.
Submitter Information Verification
Submitter Full Name: CMP 15
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 27 09:04:16 EST 2015
Committee Statement
Committee
Statement:
This is an editorial change to update 517 reference to the recent changes to 2015 NFPA Healthcare Facilities Code to correlate
information between the two documents as per the 2011 National Electrical Code Style Manual Section 4.3.2 and subsequent sections.
Response
Message:
Public Input No. 2850-NFPA 70-2014 [Article 517 [Excluding any Sub-Sections]]
Ballot Results
40 of 1802
This item has passed ballot
14 Eligible Voters
2 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Gilbert, Kenneth J.
Jones, Kim
Affirmative All
Beebe, Chad E.
Dagenais, David A.
Dozier, Matthew B.
Krupa, Gary J.
Lipster, Stephen M.
Nash, Jr., Hugh O.
Porter, Kevin T.
Rock, Brian E.
Seabury III, James C.
Shelly, Bruce D.
Talka, Donald J.
Todd, Lawrence E.
Affirmative with Comment
DuPriest, Joe L.
Provides correlation between NFPA 70 & NFPA 99
4/22/2015 10:39 AM
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First Revision No. 7522-NFPA 70-2015 [ Detail ]
Make the following change to Informational Note No. 4 in 210.19(A):
Informational Note No. 4: Conductors for branch circuits as defined in Article 100, sized to prevent a voltage drop exceeding 3 percent
at the farthest outlet of power, heating, and lighting loads, or combinations of such loads, and where the maximum total voltage drop on
both feeders and branch circuits to the farthest outlet does not exceed 5 percent, provide reasonable efficiency of operation. See
Informational Note No. 2 of 215.2(A)(1) (b) for voltage drop on feeder conductors.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Feb 24 14:31:43 EST 2015
Committee Statement
Committee Statement: The proposed change has already been identified in Errata 70-14-3 issued April 21, 2014.
Response Message:
Public Input No. 438-NFPA 70-2014 [Section No. 210.19(A) [Excluding any Sub-Sections]]
Ballot Results
41 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
4/22/2015 10:39 AM
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First Revision No. 7523-NFPA 70-2015 [ Detail ]
Make the following changes to 404.14:
404.14 Rating and Use of Snap Switches. Snap Switches shall be used within their ratings and as indicated in 404.14(A) through
(F).
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Feb 27 14:17:49 EST 2015
Committee Statement
Committee Statement: This change more accurately describes the content in (A) through (F).
Response Message:
Ballot Results
42 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
10 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
1 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hartwell, Frederic P.
Hornberger, Barry N.
Humphrey, David G.
Osborne, Robert D.
Rupp, Bradford D.
Young, Ralph H.
Abstention
Miller, Kevin R.
Abstain because I cannot located FR-7523 in the FR Report and the ballot-based link to display FR-7523 is not linking to the FR. Cannot affirm nor negate
what I cannot find in the ballot materials.
4/22/2015 10:39 AM
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First Revision No. 1-NFPA 70-2015 [ Section No. 90.2(A) ]
(A) Covered.
This Code covers the installation and removal of electrical conductors, equipment, and raceways; signaling and communications conductors,
equipment, and raceways; and optical fiber cables and raceways for the following:
(1) Public and private premises, including buildings, structures, mobile homes, recreational vehicles, and floating buildings
(2) Yards, lots, parking lots, carnivals, and industrial substations
(3) Installations of conductors and equipment that connect to the supply of electricity
(4) Installations used by the electric utility, such as office buildings, warehouses, garages, machine shops, and recreational buildings, that are
not an integral part of a generating plant, substation, or control center
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 09:47:24 EST 2015
Committee Statement
Committee Statement: This section is revised to clarify that some rules in the NEC address removals.
Response Message:
Public Input No. 1211-NFPA 70-2014 [Section No. 90.2(A)]
Ballot Results
43 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
9 Affirmative All
1 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sood, Mohinder P.
Affirmative with Comment
Hickman, Palmer L.
This First revision should be revised to also include maintenance, testing and alteration. (A) Covered. This Code covers the installation, maintenance,
alteration, testing, and removal of electrical conductors, equipment, and raceways; signaling and communications conductors, equipment, and raceways;
and optical fiber cables and raceways for the following:
Negative with Comment
Barrios, Louis A.
While the Code covers the removal of wiring, these requirements are limited to only a few sections. The addition of "removal" to 90.2(A) may have
unintended consequences and be misinterpreted to include more widespread removal of conductors, equipment and raceway than the sections specifically
addressed. "Installation" is used in a broad sense and a laundry list of what aspects of installations the Code covers is not necessary.
Sayler, Kent A.
NEC rules are primarily focused on electrical installations. Removal of electrical equipment is only required in a few specific sections therefore should not
be included in 90.2(A). Removal of equipment that does not pose a hazard should not be covered by the NEC.
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First Revision No. 2-NFPA 70-2015 [ Section No. 90.2(B) ]
(B) Not Covered.
This Code does not cover the following:
(1) Installations in ships, watercraft other than floating buildings, railway rolling stock, aircraft, or automotive vehicles other than mobile homes
and recreational vehicles
Informational Note: Although the scope of this Code indicates that the Code does not cover installations in ships, portions of this
Code are incorporated by reference into Title 46, Code of Federal Regulations, Parts 110–113.
(2) Installations underground in mines and self-propelled mobile surface mining machinery and its attendant electrical trailing cable
(3) Installations of railways for generation, transformation, transmission, energy storage, or distribution of power used exclusively for operation
of rolling stock or installations used exclusively for signaling and communications purposes
(4) Installations of communications equipment under the exclusive control of communications utilities located outdoors or in building spaces
used exclusively for such installations
(5) Installations under the exclusive control of an electric utility where such installations
a.
Consist of service drops or service laterals, and associated metering, or
b.
Are on property owned or leased by the electric utility for the purpose of communications, metering, generation, control, transformation,
transmission, energy storage, or distribution of electric energy, or
c.
Are located in legally established easements or rights-of-way, or
d.
Are located by other written agreements either designated by or recognized by public service commissions, utility commissions, or
other regulatory agencies having jurisdiction for such installations. These written agreements shall be limited to installations for the
purpose of communications, metering, generation, control, transformation, transmission, energy storage, or distribution of electric
energy where legally established easements or rights-of-way cannot be obtained. These installations shall be limited to federal lands,
Native American reservations through the U.S. Department of the Interior Bureau of Indian Affairs, military bases, lands controlled by
port authorities and state agencies and departments, and lands owned by railroads.
Informational Note to (4) and (5): Examples of utilities may include those entities that are typically designated or recognized by
governmental law or regulation by public service/utility commissions and that install, operate, and maintain electric supply (such as
generation, transmission, or distribution systems) or communications systems (such as telephone, CATV, Internet, satellite, or data
services). Utilities may be subject to compliance with codes and standards covering their regulated activities as adopted under
governmental law or regulation. Additional information can be found through consultation with the appropriate governmental bodies, such
as state regulatory commissions, the Federal Energy Regulatory Commission, and the Federal Communications Commission.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 13:49:11 EST 2015
Committee Statement
Committee
Statement:
This revision adds “storage” to the list of NEC scope exclusions which enhances clarity of the code as it relates to installations that are
excluded from the scope. These exclusions did not include energy storage. This meant that an energy storage system could be subject to
the NEC and inspection by the local AHJ.
The word “power” was revised to “electric energy” in 90.2(B)(3) for consistency.
Response
Message:
Public Input No. 4067-NFPA 70-2014 [Section No. 90.2(B)]
Public Input No. 4070-NFPA 70-2014 [Section No. 90.2(B)]
Public Input No. 4072-NFPA 70-2014 [Section No. 90.2(B)]
Ballot Results
44 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
10 Affirmative All
0 Affirmative with Comments
2 Negative with Comments
0 Abstention
4/22/2015 10:39 AM
National Fire Protection Association Report
45 of 1802
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Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Negative with Comment
Hickman, Palmer L.
The term "energy storage" is not defined and therefore the breadth of this exclusion from the requirements of the NEC is unclear. In addition, the
committee statement incorrectly states that "storage" was added when in fact "energy storage" was added.
Hittinger, David L.
I am not in agreement that all "energy storage" should be exempt from the provisions in the NEC. Perhaps a definition would be an appropriate before
excluding this from the NEC.
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First Revision No. 3-NFPA 70-2015 [ Section No. 90.3 ]
90.3 Code Arrangement.
This Code is divided into the introduction and nine chapters, as shown in Figure 90.3 . Chapters 1 , 2, 3 , and 4 apply generally; . Chapters 5, 6,
and 7 apply to special occupancies, special equipment, or other special conditions. These latter chapters and may supplement or modify the
general rules requirements in . Chapters 1 through 4 apply except as amended by Chapters 5 , 6 , and 7 for the particular conditions .
Chapter 8 covers communications systems and is not subject to the requirements of Chapters 1 through 7 except where the requirements are
specifically referenced in Chapter 8 .
Chapter 9 consists of tables that are applicable as referenced.
Informative annexes are not part of the requirements of this Code but are included for informational purposes only.
Figure 90.3 Code Arrangement.
Submitter Information Verification
46 of 1802
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
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Zip:
Submittal Date:
Mon Jan 19 14:45:16 EST 2015
Committee Statement
Committee
Statement:
There are requirements in Chapter 5, 6, and 7 that modify requirements in other articles within Chapters 5, 6, and 7. Section 90.3 was
revised to permit the rules in latter chapters to modify each other.
Response
Message:
Public Input No. 684-NFPA 70-2014 [Section No. 90.3]
Public Input No. 2590-NFPA 70-2014 [Section No. 90.3]
Ballot Results
47 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 4-NFPA 70-2015 [ Section No. 90.8(B) ]
(B) Number of Circuits in Enclosures.
It is elsewhere provided in this Code that the number of wires and circuits confined in a single enclosure be varyingly restricted. Limiting the
number of circuits in a single enclosure minimizes the effects from a short circuit or ground fault.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 16:46:36 EST 2015
Committee Statement
Committee Statement: This editorial change removes the words “wires and” to be consistent with the title of 90.8(B) and the last sentence.
Response Message:
Public Input No. 4619-NFPA 70-2014 [Section No. 90.8(B)]
Public Input No. 698-NFPA 70-2014 [Section No. 90.8(B)]
Ballot Results
48 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 6-NFPA 70-2015 [ Article 100 [Excluding any Sub-Sections] ]
Scope. This article contains only those definitions essential to the proper application of this Code. It is not intended to include commonly defined
general terms or commonly defined technical terms from related codes and standards. In general, only those terms that are used in two or more
articles are defined in Article 100. Other definitions are included in the article in which they are used but may be referenced in Article 100.
Part I of this article contains definitions intended to apply wherever the terms are used throughout this Code. Part II contains definitions applicable
only to articles and parts of articles specifically covering installations and equipment operating at over 600 1000 volts, nominal.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 09:19:06 EST 2015
Committee Statement
Committee
Statement:
The Panel recognizes that all definitions may be placed in Article 100 as result of the first draft process. This may necessitate the removal
of “In general, only those terms that are used in two or more articles are defined in Article 100. Other definitions are included in the article in
which they are used but may be referenced in Article 100.”
This incorporates the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making Panels 1 and 8
on proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview from 600 volts
to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements to be
included relative to present trends.
The header “Scope” is now numbered 100.1 to comply with the NEC Style Manual.
An editorial change removed the word "proper".
The second paragraph was revised for clarity.
Response
Message:
Public Input No. 1552-NFPA 70-2014 [Article 100 [Excluding any Sub-Sections]]
Public Input No. 2854-NFPA 70-2014 [Article 100 [Excluding any Sub-Sections]]
Ballot Results
49 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Affirmative with Comment
Hickman, Palmer L.
We are concerned that the proposed revisions are still not technically correct. For example, we wonder why there are definitions in part II that are used in
1,000 volt and less applications such a "fuse". It seems a number of these definitions are not unique to Part II.
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First Revision No. 8-NFPA 70-2015 [ Definition: Accessible, Readily (Readily Accessible). ]
Accessible, Readily (Readily Accessible).
Capable of being easily reached quickly for operation, renewal service , or inspections inspection without requiring those to whom ready access
is requisite to take actions such as to the use of tools, the need to climb over or under, the need to remove obstacles, or to resort to the use
of portable ladders, and so forth or similar equipment .
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 10:15:44 EST 2015
Committee Statement
Committee Statement: The definition is revised for added clarity. The list is not intended to be an all-inclusive list.
Response Message:
Public Input No. 2317-NFPA 70-2014 [Definition: Accessible, Readily (Readily Accessible).]
Public Input No. 2892-NFPA 70-2014 [Definition: Accessible, Readily (Readily Accessible).]
Public Input No. 3361-NFPA 70-2014 [Definition: Accessible, Readily (Readily Accessible).]
Ballot Results
50 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
10 Affirmative All
0 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sood, Mohinder P.
Negative with Comment
Barrios, Louis A.
Little to no justification was provided in the Committee statement for the change. Removal of the phrase "to whom ready access is requisite" is more than
editorial in nature.
Sayler, Kent A.
The panel statement does not cover all the changes made and their potential impacts. Removing the words "to those to whom ready access is requisite"
was previously considered to permit equipment located behind locked doors to be considered readily accessible to qualified persons if they had the keys.
Additionally the revised wording would prohibit locking doors or enclosures that limit access to any equipment that is required to be readily accessible such
as panelboards in public spaces. Dictionaries indicate that a key is an instrument and an instrument is a tool.
4/22/2015 10:39 AM
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First Revision No. 9-NFPA 70-2015 [ Definition: Building. ]
Building.
A structure that stands alone or that is cut off separated from adjoining structures by fire walls with all openings therein protected by approved
fire doors .
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 11:08:38 EST 2015
Committee Statement
Committee
Statement:
The definition was revised to replace “cut off” with “separated” and end the sentence after walls. The reference to “fire doors” is deleted
since the term may be misleading as not all openings in fire walls are doors. Building codes determine openings permitted in fire walls that
are not limited to fire doors.
Note: Refer this revision to the Correlating Committee for coordination with other standards that use the term.
Response
Message:
Public Input No. 2109-NFPA 70-2014 [Definition: Building.]
Public Input No. 2894-NFPA 70-2014 [Definition: Building.]
Ballot Results
51 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Affirmative with Comment
Barrios, Louis A.
The Committee should have done more to improve the definition of "building" so that structures that stand alone, such as poles, are not considered
buildings.
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First Revision No. 4503-NFPA 70-2015 [ Definition: Cable Routing Assembly. ]
Cable Routing Assembly.
A single channel or connected multiple channels, as well as associated fittings, forming a structural system that is used to support and route
communications wires and cables, optical fiber cables, data cables associated with information technology and communications equipment,
Class 2 and Class 3 cables, and power-limited fire alarm cables Class 2, Class 3, and Type PLTC cables, and power-limited fire alarm cables in
plenum, riser, and general-purpose applications .
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 11:10:04 EST 2015
Committee Statement
Committee
Statement:
CMP-16 revises the definition. This revision aligns the definition with the revised requirements in 725.3(M), 760.3(L), 770.110(C),
800.110(C), 820.110(C) and 830.110(C), and includes Type PLTC as a cable type associated with cable routing assemblies. Adding
“plenum” is consistent with the applications of cable routing assemblies as permitted in NFPA 90A-2015.
Public Input No. 258-NFPA 70-2014 [Definition: Cable Routing Assembly.]
Ballot Results
52 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
4/22/2015 10:39 AM
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First Revision No. 4505-NFPA 70-2015 [ Definition: Communications Equipment. ]
Communications Equipment.
The electronic equipment that performs the telecommunications operations for the transmission of audio, video, and data, and includes power
equipment (e.g., dc converters, inverters, and batteries), technical support equipment (e.g., computers), and conductors dedicated solely to the
operation of the equipment.
Informational Note: This definition clearly indicates that the dc power equipment as well as computers are considered to be part of the
communications equipment. As the telecommunications network transitions to a more data centric network, communications equipment
will also include routers and servers essential to the transmission of audio, video, and data.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 11:51:17 EST 2015
Committee Statement
Committee
Statement:
CMP-16 adds an informational note. Telecommunications equipment used for the transmission of audio, video and data is evolving. As a
result, computer/data processing equipment (e.g., routers and servers) is used to control, monitor and process telecommunications functions
and is becoming an essential part of that equipment. The added Informational Note informs the NEC user that such equipment will likely be
encountered in newer/updated telecommunications facilities.
Response
Message:
Public Input No. 1504-NFPA 70-2014 [Definition: Communications Equipment.]
Ballot Results
53 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
17 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Dorna, Gerald Lee
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
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First Revision No. 4504-NFPA 70-2015 [ Definition: Communications Raceway. ]
Communications Raceway.
An enclosed channel of nonmetallic materials designed expressly for holding communications wires and cables, typically communications wires
and cables and optical fiber and data (Class 2 and Class 3) optical fiber cables, data cables associated with information technology and
communications equipment, Class 2, Class 3 and Type PLTC cables, and power-limited fire alarm cables in plenums , risers , and generalpurpose applications.
Submitter Information Verification
Submitter Full Name: CMP 16
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 11:41:27 EST 2015
Committee Statement
Committee
Statement:
CMP-16 edits the definition. This revision aligns the definition with the revised requirements in 725.3(N) and 760.3(M). The revised
definition now specifically includes optical fiber cable, data cables associated with IT and communications equipment, Class 2, Class 3 and
Type PLTC cables, and power-limited fire alarm cables. The phrase “typically communications wires and cables and optical fiber and data
(Class 2 and Class 3)” is now superfluous and is deleted.
Response
Message:
Public Input No. 259-NFPA 70-2014 [Definition: Communications Raceway.]
Public Input No. 533-NFPA 70-2014 [Definition: Communications Raceway.]
Ballot Results
54 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bish, George
Brunssen, James E.
Dawson, Fred C.
Ivans, Randolph J.
Jensen, Robert W.
Johnson, Steven C.
Lawrence, Eric
McCoy, William J.
McNamara, Jack
Moore, Thomas E.
Murphy, Michael F.
Ohde, Harold C.
Parrish, Thomas J.
Pirkle, W. Douglas
Prezioso, Luigi G.
Zieman, Leo
Affirmative with Comment
Dorna, Gerald Lee
The end of the definition should read “in plenum, riser and general-purpose applications”, not “in plenums, risers and general-purpose applications”
4/22/2015 10:39 AM
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First Revision No. 2701-NFPA 70-2015 [ Definition: Coordination (Selective). ]
Coordination, Selective (Selective Coordination ).
Localization of an overcurrent condition to restrict outages to the circuit or equipment affected, accomplished by the selection and installation of
overcurrent protective devices and their ratings or settings for the full range of available overcurrents, from overload to the maximum available
fault current, and for the full range of overcurrent protective device opening times associated with those overcurrents.
Submitter Information Verification
Submitter Full Name: CMP 10
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 08:40:35 EST 2015
Committee Statement
Committee
Statement:
This first revision is an editorial correction for the purposes of clarity, usability and correlation with other definition titles that include a
descriptor.
Response Message:
Public Input No. 1492-NFPA 70-2014 [Definition: Coordination (Selective).]
Ballot Results
55 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Blizard, Scott A.
Burns, Julian R.
Darling, Dennis M.
Dollard, Jr., James T.
Fredericks, Carl
Kauer, Robert J.
Mount, Jr., Robert W.
Rempe, Kenneth J.
Saporita, Vincent J.
Sobel, Richard
Vance, Christopher R.
Affirmative with Comment
Hidaka, Jeffrey H.
none
4/22/2015 10:39 AM
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First Revision No. 2402-NFPA 70-2015 [ Definition: Cutout Box. ]
Cutout Box.
An enclosure designed for surface mounting that has swinging doors or covers secured directly to and telescoping with the walls of the box
proper enclosure .
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 16:55:10 EST 2015
Committee Statement
Committee
Statement:
The current definition of a cutout box is accurate and reflects industry standards but it is not a commonly used term. The informational
note proposed by the submitter of PI 3631 provides two applications for a cutout box but does not clarify the definition. The additional
information would be better covered in a handbook.
Response
Message:
Public Input No. 1426-NFPA 70-2014 [Definition: Cutout Box.]
Public Input No. 3631-NFPA 70-2014 [Definition: Cutout Box.]
Ballot Results
56 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hartwell, Frederic P.
Hornberger, Barry N.
Humphrey, David G.
Miller, Kevin R.
Osborne, Robert D.
Rupp, Bradford D.
Young, Ralph H.
4/22/2015 10:39 AM
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First Revision No. 3910-NFPA 70-2015 [ Definition: Dusttight. ]
Dusttight.
Constructed Enclosures constructed so that dust will not enter the enclosing case under specified test conditions.
Informational Note No. 1: Enclosure Types 3, 3S, 3SX, 4, 4X, 5, 6, 6P, 12, 12K, and 13, per ANSI/NEMA 250-2014, Enclosures for
Electrical Equipment , are considered dusttight and suitable for use in unclassified locations and in Class II, Division 2; Class III; and Zone
22 hazardous (classified) locations.
Informational Note No. 2: For further information, see ANSI/ISA-12.12.01-2013, Nonincendive Electrical Equipment for Use in Class I
and II, Division 2, and Class III, Divisions 1 and 2 Hazardous (Classified) Locations .
Submitter Information Verification
Submitter Full Name: CMP 14
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 13:34:47 EST 2015
Committee Statement
Committee
Statement:
The definition was revised to match the deleted definitions from 500.2 and 506.2. Informational note no. 1 was added to clarify which
enclosure types are considered to be dusttight. Informational note no. 2 was relocated from the deleted definitions in 500.2 and 506.2.
Response
Message:
Ballot Results
57 of 1802
This item has passed ballot
16 Eligible Voters
1 Not Returned
13 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Cahill, Corey
Affirmative All
Alexander, Harold G.
Bernsen, Marc J.
Blais, Steven J.
Burns, Dave
Jones, Robert A.
Kines, Haywood
Lawrence, Jr., William G.
Massey, L. Evans
McBride, William E.
Neagle, Jeremy
Parks, Ryan
Simmons, John L.
Wechsler, David B.
Affirmative with Comment
Ankele, Donald W.
At the end of informational note 1, add the phrase :"...where heat generating parts are not included within the enclosure."
Wirfs, Mark C.
None
4/22/2015 10:39 AM
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First Revision No. 5144-NFPA 70-2015 [ Definition: Electric Sign. ]
Electric Sign.
A fixed, stationary, or portable self-contained, electrically operated and/or electrically illuminated utilization equipment with words or symbols
designed to convey information or attract attention.
Submitter Information Verification
Submitter Full Name: CMP 18
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 13 17:25:50 EST 2015
Committee Statement
Committee
Statement:
The definition coincides with the UL standard covering all electrically operated and illuminated signs. A sign is a communication device
and does not have to be illuminated as part of the device.
Response
Message:
Public Input No. 2799-NFPA 70-2014 [Definition: Electric Sign.]
Ballot Results
58 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Alley, Ron D.
Carpenter, Frederick L.
Clemente, Kurt J.
Costello, Paul
Dundas, William S.
Gray, Bobby J.
Hasan, Hakim
Hewitt, Lee C.
Jamison, Jr., Jack E.
McCorcle, William Ross
Wright, Randall K.
4/22/2015 10:39 AM
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First Revision No. 10-NFPA 70-2015 [ Definition: Equipment. ]
Equipment.
A general term, including fittings, devices, appliances, luminaires, apparatus, machinery, and the like used as a part of, or in connection with, an
electrical installation.
Informational Note: In addition to the items listed in the definition, equipment also describes air conditioning units, power outlets (such as
recreational vehicle site supply equipment or marine power outlets), transformers, and other enclosures that contain electrical products.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 11:29:48 EST 2015
Committee Statement
Committee Statement: This first revision adds the informational note to provide examples that distinguish between equipment and structures.
Response Message:
Public Input No. 4732-NFPA 70-2014 [New Definition after Definition: Equipment.]
Ballot Results
59 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
9 Affirmative All
0 Affirmative with Comments
3 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Negative with Comment
Barrios, Louis A.
The addition of an Informational Note to the definition of "equipment" in order to provide additional examples to the existing laundry list of examples is not
necessary. The definition already includes the phrase "and the like" to cover other examples. The proposed Informational Note adds no additional clarity to
the existing examples and does not additionally clarify what is or what is not a structure.
Hickman, Palmer L.
We are concerned that adding a laundry list in an informational note nearly as long as the laundry list already in the actual definition points to the fact that
the definition is not correct. "And the like" seems to cover what is being prosed to be added as an informational note. Perhaps "such as" is more
appropriate than "and the like".
Hittinger, David L.
The added informational note adds a limited list of items that does not address mounting of AC equipment that FR 4732 was intended to correct.
4/22/2015 10:39 AM
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First Revision No. 901-NFPA 70-2015 [ Definition: Photovoltaic (PV) System. ]
Photovoltaic (PV) System.
The total components and subsystem that, in combination, convert solar energy into electric energy suitable for connection to a utilization load.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 08:34:46 EST 2015
Committee Statement
Committee
Statement:
This new language better reflects the language that is recommended by the NEC Style Manual and better defines how the PV
system power is connected.
Response Message:
Public Input No. 2123-NFPA 70-2014 [Definition: Photovoltaic (PV) System.]
Ballot Results
60 of 1802
This item has passed ballot
15 Eligible Voters
0 Not Returned
15 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bower, Ward I.
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Wills, Robert H.
Zgonena, Timothy P.
4/22/2015 10:39 AM
National Fire Protection Association Report
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First Revision No. 2147-NFPA 70-2015 [ Definition: Raceway. ]
Raceway.
An enclosed channel of metallic or nonmetallic materials designed expressly for holding wires, cables, or busbars, with additional functions as
permitted in this Code.
Informational Note: A raceway is identified within specific article definitions.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 10:47:09 EST 2015
Committee Statement
Committee Statement: The words "of metallic or nonmetallic materials" did not add clarity to the definition.
Response Message:
Public Input No. 2124-NFPA 70-2014 [Definition: Raceway.]
Ballot Results
61 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
The words "of metallic or nonmetallic materials" did not add clarity to the definition.
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First Revision No. 5114-NFPA 70-2015 [ Definition: Receptacle. ]
Receptacle.
A receptacle is a contact device installed at the outlet for the connection of an attachment plug. A single receptacle is a single contact device
with no other contact device on the same yoke. A multiple receptacle is two or more contact devices on the same yoke.
Submitter Information Verification
Submitter Full Name: CMP 18
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 16:27:44 EST 2015
Committee Statement
Committee Statement: In accordance with the NEC Style Manual section 2.2.2, the defined term is not to be used in the definition.
Response Message:
Public Input No. 3139-NFPA 70-2014 [Definition: Receptacle.]
Ballot Results
62 of 1802
This item has passed ballot
10 Eligible Voters
0 Not Returned
9 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Alley, Ron D.
Carpenter, Frederick L.
Clemente, Kurt J.
Costello, Paul
Hasan, Hakim
Hewitt, Lee C.
Jamison, Jr., Jack E.
McCorcle, William Ross
Wright, Randall K.
Affirmative with Comment
Gray, Bobby J.
The definition should have been expanded to account for changes in technology that would use the receptacle to accept things beyond the classical
attachment plug. As was demonstrated, electrical connectors other than attachment plugs as defined in Article 100 should be allowed to use the receptacle.
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First Revision No. 13-NFPA 70-2015 [ Definition: Structure. ]
Structure.
That which is built or constructed, other than equipment .
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 14:34:22 EST 2015
Committee Statement
Committee Statement: The addition of the phrase “other than equipment” provides clarification that structures does not include equipment.
This revision aligns with the objectives of the Correlating Committee assigned task group to deal with the definition of structure.
Response Message:
Ballot Results
63 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
10 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Affirmative with Comment
Hickman, Palmer L.
We are concerned that the definition of equipment is unclear as indicated by the action on FR-10. We conclude that FR-13 will be difficult to apply as it
may be unclear, vague and unenforceable.
Hittinger, David L.
This revision does not correlate with revisions in FR 10 that adds a limited list of items in an informational note.
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First Revision No. 2429-NFPA 70-2015 [ Definition: Substation. ]
Substation.
An enclosed assemblage of equipment (e.g., containing switches, interrupting devices, circuit breakers, protection relays, buses, and
transformers) , switchgear, motor control centers, etc… through which electric energy is passed for the purpose of distribution, switching, or
modifying its characteristics. A substation is generally of such size or complexity that it incorporates one or more buses and a multiplicity of
electrical equipment; is usually the receiving point for more than one supply circuit to transform power from one voltage to another or from one
system to another.
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 09:30:30 EST 2015
Committee Statement
Committee
Statement:
This First Revision relocates the definition from Part I of Article 100, and redefines the term for clarity. As the term is defined in the 2014
Edition of the NEC, it could apply to a number of different installations, such as an Industrial Control Panel. The location in Part II does not
preclude the application of the term to a substation that does not include medium voltage components.
Additional Statement for PI 1554: The last sentence of the proposed change was not included in the First Revision as the definition of a
substation may apply to an installation with only one supply circuit. Size and complexity are vague terms which do not clarify the defined
term.
This proposed change moves the existing definition of “Substation” from Part I of Art. 100 to Part II- Over 1000V. It redefines the term for
clarity. As the term is defined in the 2014 Edition of the NEC, it could apply to a number of different installations, such as an Industrial
Control Panel.
Response
Message:
Public Input No. 1553-NFPA 70-2014 [Definition: Substation.]
Public Input No. 1554-NFPA 70-2014 [New Definition after Definition: Multiple Fuse.]
Ballot Results
64 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
4 Affirmative All
6 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Rupp, Bradford D.
Affirmative with Comment
Belisle, Rodney D.
The wording of this definition as presented on the ballot does not reflect the final action of CMP 9 on the revision. The Correlating Committee should act on
the basis that the correct wording of this definition is as follows: 100, Part II, Substation. An assemblage of equipment (e.g., switches, interrupting devices,
circuit breakers, buses, and transformers) through which electric energy is passed for the purpose of distribution, switching, or modifying its characteristics.
For the benefit of members of the public reading these actions, the final paragraph of the statement as reported on this ballot is needlessly redundant, was
not included in the panel action, and should have been deleted.
Hartwell, Frederic P.
See MS Word file submitted separately for the material formatted with legislative text. The new wording of the definition is as follows: “100, Part II,
Substation. An assemblage of equipment (e.g., switches, interrupting devices, circuit breakers, buses, and transformers) through which electric energy is
passed for the purpose of distribution, switching, or modifying its characteristics.” For the benefit of members of the public reading these actions, the final
paragraph of the statement as reported on this ballot is needlessly redundant, was not included in the panel action, and should have been deleted.
Humphrey, David G.
Should Read: 100, Part II, Substation. An assemblage of equipment (e.g., switches, interrupting devices, circuit breakers, buses, and transformers)
through which electric energy is passed for the purpose of distribution, switching, or modifying its characteristics. Omit final paragraph of panel statement
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Miller, Kevin R.
for the material formatted with legislative text. The new wording of the definition is as follows: “100, Part II, Substation. An assemblage of equipment (e.g.,
switches, interrupting devices, circuit breakers, buses, and transformers) through which electric energy is passed for the purpose of distribution, switching,
or modifying its characteristics.” For the benefit of members of the public reading these actions, the final paragraph of the statement as reported on this
ballot is needlessly redundant, was not included in the panel action, and should have been deleted
Osborne, Robert D.
See MS Word file submitted separately for the material formatted with legislative text. The new wording of the definition is as follows: “100, Part II,
Substation. An assemblage of equipment (e.g., switches, interrupting devices, circuit breakers, buses, and transformers) through which electric energy is
passed for the purpose of distribution, switching, or modifying its characteristics.” For the benefit of members of the public reading these actions, the final
paragraph of the statement as reported on this ballot is needlessly redundant, was not included in the panel action, and should have been deleted.
Young, Ralph H.
for the material formatted with legislative text. The new wording of the definition is as follows: “100, Part II, Substation. An assemblage of equipment (e.g.,
switches, interrupting devices, circuit breakers, buses, and transformers) through which electric energy is passed for the purpose of distribution, switching,
or modifying its characteristics.” For the benefit of members of the public reading these actions, the final paragraph of the statement as reported on this
ballot is needlessly redundant, was not included in the panel action, and should have been deleted.
Negative with Comment
Hornberger, Barry N.
My notes and the notes provided by NFPA Liaison at Hilton Head indicates that the existing definition of “Substation” be relocated from Article 100 Part 1
to Article 100 Part 2. The text in FR 2429 is NOT the existing definition of “Substation”. Text should read as follows: 100, Part II, Substation. An assemblage
of equipment (e.g., switches, interrupting devices, circuit breakers, buses, and transformers) through which electric energy is passed for the purpose of
distribution, switching, or modifying its characteristics.
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First Revision No. 955-NFPA 70-2015 [ Definition: Utility-Interactive Inverter. ]
Utility- Interactive Inverter.
An inverter intended for use in parallel with an electric utility to supply common loads that may deliver power to the utility.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 13 11:17:19 EST 2015
Committee Statement
Committee Statement: Interactive inverters may be connected to many different types of power production equipment.
Response Message:
Public Input No. 1114-NFPA 70-2014 [Definition: Utility-Interactive Inverter.]
Ballot Results
66 of 1802
This item has passed ballot
15 Eligible Voters
0 Not Returned
14 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Wills, Robert H.
Zgonena, Timothy P.
Affirmative with Comment
Bower, Ward I.
This panel member believes this definition is short sighted. The language "An inverter intended for use in parallel with an electric utility to supply common
loads that may deliver power to the utility." when combined with the new Figure 1(b) indicates the inverter (named a multimode inverter with an interactive
inverter disconnect) is confusing. Perhaps the disconnect should be named multimode inverter disconnect, but that would likely require another definition).
This comment indicates additional work during the comment period.
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First Revision No. 14-NFPA 70-2015 [ Definition: Voltage, Nominal. ]
Voltage, Nominal.
A nominal value assigned to a circuit or system for the purpose of conveniently designating its voltage class (e.g., 120/240 volts, 480Y/277 volts,
600 volts).
Informational Note No. 1: The actual voltage at which a circuit operates can vary from the nominal within a range that permits satisfactory
operation of equipment.
Informational Note No. 2: See ANSI C84.1-2006 2011 , Voltage Ratings for Electric Power Systems and Equipment (60 Hz).
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 15:26:38 EST 2015
Committee Statement
Committee Statement: This first revision changes the reference to the 2011 ANSI C84.1 version in Informational Note No. 2.
Response Message:
Ballot Results
67 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 3997-NFPA 70-2015 [ New Definition after Definition: Copper-Clad Aluminum Condu... ]
Cord Connector [as applied to Hazardous (Classified) Locations].
A fitting intended to terminate a cord or cable to a box or similar device and reduce the strain at points of termination and may include an
explosionproof, a dust-ignitionproof, or a flameproof seal.
Submitter Information Verification
Submitter Full Name: CMP 14
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 15:22:46 EST 2015
Committee Statement
Committee
Statement:
The inclusion of TC-ER and TC-ER-HL as a wiring method in Articles 501, 502, 503, 505, and 506 requires a method of termination that
currently is identified as a Cord Connector. The current term for this device, as used in the HazLoc industry and within the product standards,
is “cord connector”, which should not be confused with the term also used by the wiring device industry, indicating a female electrical
connector. The differentiation has been addressed by denoting “(as applied to hazardous (classified) locations)”. The term is currently used
(19) times in these articles.
Response
Message:
Public Input No. 4476-NFPA 70-2014 [Section No. 505.15(B)(2)]
Public Input No. 4477-NFPA 70-2014 [Section No. 505.15(C)(2)]
Ballot Results
68 of 1802
This item has passed ballot
16 Eligible Voters
1 Not Returned
11 Affirmative All
1 Affirmative with Comments
3 Negative with Comments
0 Abstention
Not Returned
Cahill, Corey
Affirmative All
Alexander, Harold G.
Ankele, Donald W.
Bernsen, Marc J.
Blais, Steven J.
Burns, Dave
Jones, Robert A.
Lawrence, Jr., William G.
Massey, L. Evans
Neagle, Jeremy
Parks, Ryan
Simmons, John L.
Affirmative with Comment
Wirfs, Mark C.
None
Negative with Comment
Kines, Haywood
Definitions that are only applicable to Chapter 5 need to remain within the .2 sections within the Articles in Chapter 5 so that the information needed for the
user is readily available. Relocating the definitions to Article 100 and adding the text (as applied to Hazardous (Classified) Locations) so users will
understand the definitions only apply to Articles in Chapter 5 unnecessarily expands the text in Article 100 and does add any benefit to the Electrical
industry using the National Electrical Code.
McBride, William E.
The term cord connector is used many times in the NEC for a wiring device. Defining that term differently for a product to be used in classified locations
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and also in unclassified locations is confusing.
Wechsler, David B.
While it is understood that confusion may exist with the term “cord connector” used in product standards it is felt that complete resolution resides not within
the NEC, but in product standards. To reduce this impact it is strongly suggested that the term “cord fitting” be used since in fact the method of termination
is incorporated often with a fitting. Therefore, the revised defined term should be as follows: 100 (new) Cord Fitting (as applied to Hazardous Classified
Locations) A product intended to terminate a cord or cable to a box or similar device and reduce the strain at points of termination and may include an
explosionproof, a dust-ignition proof, or a flameproof seal
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First Revision No. 1041-NFPA 70-2015 [ New Definition after Definition: Festoon Lighting. ]
Field Evaluation Body (FEB).
An organization or part of an organization that performs field evaluations of electrical or other equipment. [ NFPA 790, 2012]
Field Labeled (as applied to evaluated products).
Equipment or materials to which has been attached a label, symbol, or other identifying mark of an FEB indicating the equipment or materials
were evaluated and found to comply with requirements as described in an accompanying field evaluation report. [ NFPA 790, 2012]
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 06:53:43 EST 2015
Committee Statement
Committee
Statement:
These definitions are necessary to recognize a process of field evaluation of equipment. These definitions are necessary for the
terms used in several articles.
Response Message:
Ballot Results
70 of 1802
This item has passed ballot
15 Eligible Voters
0 Not Returned
13 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Bower, Ward I.
Bradley, Alex Z.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Wills, Robert h.
Zgonena, Timothy P.
Affirmative with Comment
Buchal, Thomas E.
These definitions do not appear to cover festoon lighting
Negative with Comment
Allison, Malcolm
Introducing and defining the terms field labeled and field evaluation body is unnecessary and will create confusion beyond just PV applications. This also
impacts FR's 935, 7511, 1015, 915, 1039, and 1045.
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First Revision No. 339-NFPA 70-2015 [ New Definition after Definition: Ground-Fault Circuit Inter... ]
Ground-Fault Circuit Interrupter, Special Purpose (SPGFCI).
A device intended for the protection of personnel that functions to de-energize a circuit or portion of a circuit within an established period of
time when a current to ground exceeds the values established for Class C, D, and E devices.
Informational Note: Classes C, D, and E ground-fault circuit interrupters trip when the current to ground is 20 mA or higher and do not
trip when the current to ground is less than 15 mA. For further information, see UL 943C, Outline of Investigation for Special Purpose
Ground-Fault Circuit Interrupters .
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 10:43:54 EST 2015
Committee Statement
Committee
Statement:
The terms "Ground-Fault Circuit Interrupter" and "GFCI" are used in numerous locations in the Code and probably thousands of publications
nationwide. The submitter’s proposed text would require that the type be specified each and every time the term or acronym is used. This
might result in confusion regarding this important safety device. The revised text minimizes the possibility for confusion.
UL943C identifies special purpose ground-fault circuit interrupters to provide personnel protection where the voltage to ground exceeds 150
volts for Class A GFCIs. Such devices operate at 20 mA or less to prevent fibrillation and require a reliable equipment grounding conductor in
the protected circuit with an internal means within the device to monitor equipment grounding conductor continuity. Ground-fault circuitinterrupters addressed by UL 943C are divided into three classes, Class C, D and E, based upon voltage rating and the characteristics of the
grounding circuit.
Response
Message:
Public Input No. 2190-NFPA 70-2014 [Definition: Ground-Fault Circuit Interrupter (GFCI).]
Ballot Results
71 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Negative with Comment
Manche, Alan
Due to the unacceptable language proposed in FR 347, the addition of this definition is not appropriate for the installation of Special Purpose Ground-Fault
Circuit Interrupters in 210.8(B) [FR 347].
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First Revision No. 3999-NFPA 70-2015 [ New Definition after Definition: Premises Wiring (System). ]
Process Seal [as applied to Hazardous (Classified) Locations].
A seal between electrical systems and flammable or combustible process fluids where a failure could allow the migration of process fluids into
the premises’ wiring system.
Submitter Information Verification
Submitter Full Name: CMP 14
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 15:34:05 EST 2015
Committee Statement
Committee Statement: The definition for “process seal” is contained in ANSI/ISA 12.27.01 – 2011. The term is used in multiple articles in Chapter 5.
Response Message:
Ballot Results
72 of 1802
This item has passed ballot
16 Eligible Voters
1 Not Returned
13 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Not Returned
Cahill, Corey
Affirmative All
Alexander, Harold G.
Ankele, Donald W.
Bernsen, Marc J.
Blais, Steven J.
Burns, Dave
Jones, Robert A.
Lawrence, Jr., William G.
Massey, L. Evans
McBride, William E.
Neagle, Jeremy
Parks, Ryan
Simmons, John L.
Wechsler, David B.
Affirmative with Comment
Wirfs, Mark C.
None
Negative with Comment
Kines, Haywood
Definitions that are only applicable to Chapter 5 need to remain within the .2 sections within the Articles in Chapter 5 so that the information needed for the
user is readily available. Relocating the definitions to Article 100 and adding the text (as applied to Hazardous (Classified) Locations) so users will
understand the definitions only apply to Articles in Chapter 5 unnecessarily expands the text in Article 100 and does add any benefit to the Electrical
industry using the National Electrical Code.
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First Revision No. 31-NFPA 70-2015 [ Section No. 110.3(A) ]
(A) Examination.
In judging equipment, considerations such as the following shall be evaluated:
(1) Suitability for installation and use in conformity with the provisions of this Code
Informational Note No. 1: Equipment may be new, reconditioned, refurbished, or remanufactured.
Informational Note No. 2: Suitability of equipment use may be identified by a description marked on or provided with a product to
identify the suitability of the product for a specific purpose, environment, or application. Special conditions of use or other limitations
and other pertinent information may be marked on the equipment, included in the product instructions, or included in the appropriate
listing and labeling information. Suitability of equipment may be evidenced by listing or labeling.
(2) Mechanical strength and durability, including, for parts designed to enclose and protect other equipment, the adequacy of the protection
thus provided
(3) Wire-bending and connection space
(4) Electrical insulation
(5) Heating effects under normal conditions of use and also under abnormal conditions likely to arise in service
(6) Arcing effects
(7) Classification by type, size, voltage, current capacity, and specific use
(8) Other factors that contribute to the practical safeguarding of persons using or likely to come in contact with the equipment
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 11:39:12 EST 2015
Committee Statement
Committee
Statement:
A new Informational Note No. 1 following 110.3(A) is included to clarify that the general term equipment can apply to new equipment
and also used, refurbished, or reconditioned, remanufactured equipment.
Response
Message:
Public Input No. 3491-NFPA 70-2014 [Section No. 110.3(A)]
Ballot Results
73 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
9 Affirmative All
0 Affirmative with Comments
3 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Negative with Comment
Barrios, Louis A.
The committee statement provides no substantiation for the change. The addition of this Informational Note may have unintended consequences and be
misinterpreted to indicate that the Code is retroactive to reconditioned, refurbished and remanufacturered equipment.
Hickman, Palmer L.
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We conclude that "equipment" already includes the information in this FR. We further conclude that the action on FR-10 and the action of this FR adding
an additional informational note raises concern that the definition of "equipment" is unclear.
Hittinger, David L.
The definition of "equipment" does not include refurbished, remanufactured or reconditioned as described in the informational note. The definition may
need to be revised if that is the intent.
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First Revision No. 39-NFPA 70-2015 [ Section No. 110.5 ]
110.5 Conductors.
Conductors normally used to carry current shall be of copper or aluminum unless otherwise provided in this Code. Where the conductor material
is not specified, the material and the sizes given in this Code shall apply to copper conductors. Where other materials are used, the size shall be
changed accordingly.
Informational Note: For aluminum and copper-clad aluminum conductors, see 310.15.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 15:14:49 EST 2015
Committee Statement
Committee
Statement:
Revisions to the text in 110.5 provide clarity and usability of this section regarding use of copper and aluminum conductors as provided
throughout the NEC. The word aluminum is removed from the informational note because it is now included in the text of this section.
Response
Message:
Public Input No. 2775-NFPA 70-2014 [Section No. 110.5]
Public Input No. 2490-NFPA 70-2014 [Section No. 110.5]
Ballot Results
75 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 37-NFPA 70-2015 [ Section No. 110.9 ]
110.9 Interrupting Rating.
Equipment intended to interrupt current at fault levels shall have an interrupting rating at nominal circuit voltage sufficient for at least equal to the
current that is available at the line terminals of the equipment.
Equipment intended to interrupt current at other than fault levels shall have an interrupting rating at nominal circuit voltage sufficient for at least
equal to the current that must be interrupted.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 14:26:02 EST 2015
Committee Statement
Committee
Statement:
This section is editorially revised to replace the words “sufficient for” with the phrase “at least equal to” in two locations. The revision
provides improved clarity in the general requirement of this section in addition to aligning with the NEC Style Manual regarding use of
vague words and terms.
Response
Message:
Public Input No. 4625-NFPA 70-2014 [Section No. 110.9]
Ballot Results
76 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 35-NFPA 70-2015 [ Section No. 110.11 ]
110.11 Deteriorating Agents.
Unless identified for use in the operating environment, no conductors or equipment shall be located in damp or wet locations; where exposed to
gases, fumes, vapors, liquids, or other agents that have a deteriorating effect on the conductors or equipment; or where exposed to excessive
temperatures.
Informational Note No. 1: See 300.6 for protection against corrosion.
Informational Note No. 2: Some cleaning and lubricating compounds can cause severe deterioration of many plastic materials used for
insulating and structural applications in equipment.
Equipment not identified for outdoor use and equipment identified only for indoor use, such as “dry locations,” “indoor use only,” “damp locations,”
or enclosure Types 1, 2, 5, 12, 12K, and/or 13, shall be protected against damage from the weather during construction.
Informational Note No. 3: See Table 110.28 for appropriate enclosure-type designations.
Informational Note No. 4: Minimum flood provisions are provided in NFPA 5000 -2015 Building Construction and Safety Code , the
International Building Code (IBC) , and the International Residential Code for One- and Two-Family Dwellings (IRC) .
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 13:22:52 EST 2015
Committee Statement
Committee
Statement:
The new Informational note No. 4 refers users to other codes that contain provisions dealing with areas subject to floods, which can
be mandatory requirements.
Response
Message:
Ballot Results
77 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 38-NFPA 70-2015 [ Section No. 110.12 [Excluding any Sub-Sections] ]
Electrical equipment shall be installed in a neat and workmanlike manner.
Informational Note: Accepted industry practices are described in ANSI/NECA 1-2010, Standard Practice of for Good Workmanship in
Electrical Construction, and other ANSI-approved installation standards.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 14:43:59 EST 2015
Committee Statement
Committee Statement: The revision to this informational note corrects the title of the standard.
Response Message:
Ballot Results
78 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 41-NFPA 70-2015 [ Section No. 110.14 [Excluding any Sub-Sections] ]
Because of different characteristics of dissimilar metals, devices such as pressure terminal or pressure splicing connectors and soldering lugs
shall be identified for the material of the conductor and shall be properly installed and used. Conductors of dissimilar metals shall not be
intermixed in a terminal or splicing connector where physical contact occurs between dissimilar conductors (such as copper and aluminum,
copper and copper-clad aluminum, or aluminum and copper-clad aluminum), unless the device is identified for the purpose and conditions of use.
Materials such as solder, fluxes, inhibitors, and compounds, where employed, shall be suitable for the use and shall be of a type that will not
adversely affect the conductors, installation, or equipment.
Connectors and terminals for conductors more finely stranded than Class B and Class C stranding as shown in Chapter 9 , Table 10, shall be
identified for the specific conductor class or classes.
Informational Note: Many terminations and equipment are either marked with tightening torque or are identified as to tightening torque in
the installation instructions provided.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 15:35:27 EST 2015
Committee Statement
Committee Statement: The addition of new 110.14(D) in FR 40 eliminates the need for the informational note in 110.14.
Response Message:
Public Input No. 1324-NFPA 70-2014 [Section No. 110.14 [Excluding any Sub-Sections]]
Ballot Results
79 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 40-NFPA 70-2015 [ New Section after 110.14(C) ]
(D) Installation.
Where a tightening torque is indicated as a numeric value on equipment or in installation instructions provided by the manufacturer, a calibrated
torque tool shall be used to achieve the indicated torque value, unless the equipment manufacturer has provided installation instructions for an
alternative method of achieving the required torque.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 15:24:28 EST 2015
Committee Statement
Committee
Statement:
Use of proper torque tools is essential to verify that terminations are properly made and the equipment will function properly throughout
its life cycle. Testing has shown that installers use the wrong torque values in up to 75% of installations unless a torque measuring tool is
used.
Response
Message:
Public Input No. 1323-NFPA 70-2014 [New Section after 110.14(C)]
Ballot Results
80 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
10 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Affirmative with Comment
Sood, Mohinder P.
This may be an enforcement issue for the AHJs as when inspectors go for inspections an electrician may or may not be present at the job site. Even when
they have the proper tool, inspectors are not going to be present when actual work is being done (early morning, late night etc.). It will be the same issue
when preventive maintenance is performed on the switchgear in large buildings.
Negative with Comment
Barrios, Louis A.
This change has the potential of having a significant impact on the electrical industry. Emphasis and priority should be given to properly torquing bolted
connections before implementing mandatory requirements for smaller gauge wire and connections on terminal strips.
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First Revision No. 55-NFPA 70-2015 [ Section No. 110.16 ]
110.16 Arc-Flash Hazard Warning.
(A) General.
Electrical equipment, such as switchboards, switchgear, panelboards, industrial control panels, meter socket enclosures, and motor control
centers, that are is in other than dwelling units, and are is likely to require examination, adjustment, servicing, or maintenance while energized,
shall be field or factory marked to warn qualified persons of potential electric arc flash hazards. The marking shall meet the requirements in
110.21(B) and shall be located so as to be clearly visible to qualified persons before examination, adjustment, servicing, or maintenance of the
equipment.
(B) Service Equipment.
In addition to the requirements in (A), service equipment shall contain the following information:
(1) Nominal system voltage
(2) Arc flash boundary
(3) At least one of the following:
(c) Available incident energy and the corresponding working distance
(c) Minimum arc rating of clothing
(c) Site-specific level of PPE
Informational Note No. 1: NFPA 70E -2012, Standard for Electrical Safety in the Workplace , provides guidance, such as determining
severity of potential exposure, planning safe work practices, arc flash labeling, and selecting personal protective equipment.
Informational Note No. 2: ANSI Z535.4-1998, Product Safety Signs and Labels , provides guidelines for the design of safety signs and
labels for application to products.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 14:42:41 EST 2015
Committee Statement
Committee
Statement:
Revisions were made based on the requirements in the 2015 edition of NFPA 70E. The phrase “…arc flash PPE category in Table
130.7(C)(15)(A)(b) or Table 130.7(C)(15)(B) for the equipment, but not both” was removed from the inclusion in the NEC so that a work
practice document would not need to be referenced.
CMP1 recognizes the scope of both NEC and NFPA 70E and adds these installation-related requirements into a new 110.16(B) Service
Equipment. This new section is limited to service equipment rather than a broader application.
The information necessary to comply with the additional marking on service equipment is obtainable at or before the time of installation.
An editorial change was made by replacing “in” to “for.”
Response
Message:
Public Input No. 551-NFPA 70-2014 [Section No. 110.16]
Public Input No. 1491-NFPA 70-2014 [Section No. 110.16]
Public Input No. 4626-NFPA 70-2014 [Section No. 110.16]
Public Input No. 4789-NFPA 70-2014 [Section No. 110.16]
Ballot Results
81 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
7 Affirmative All
3 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
4/22/2015 10:39 AM
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Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Gallo, Ernest J.
Iverson, Donald R.
Pierce, James F.
Sayler, Kent A.
Affirmative with Comment
Hickman, Palmer L.
This is a logical addition of installation requirements into an enforceable Code. The final wording of this First Revision should have also included either the
date the information on this label was determined and/or the date the label was installed. By including the concept of including a date on the label here on
this ballot it would not be considered new information if included as a comment.
Hittinger, David L.
I am voting affirmative on the action to create FR 55 with the following comment: It is essential that the date of application on the label be included in this
requirement for several reasons. (1) The existing requirement in 110.24 for field marking of available fault current on service equipment requires that the
date the calculation was performed be marked on the label. This new labeling requirement in 110.16 must also contain the date for the same reasons it
exists here in 110.24. (2) It is essential that the date be applied for the owner of the service equipment to maintain the label and for label readers to make a
determination on the continued accuracy of the label, which could be impacted if the service was replaced or the upstream utility transformer was replaced.
The insertion of the date in this proposed revision is included in my ballot statement for public review and to permit comments to be submitted to include the
date. I will not support this proposed revision in the comment stage if the date is not included. Suggested revision: (B) Service Equipment. In addition to the
requirements in (A), service equipment shall contain the following information: (1) Nominal system voltage (2) Arc flash boundary (3) At least one of the
following: (a) Available incident energy and the corresponding working distance (b) Minimum arc rating of clothing (c) Site-specific level of PPE (4) The date
the label is applied Also, PI 4626 revised the wording in the first paragraph changing "in" to "at" The last sentence in the committee statement is not correct.
Sood, Mohinder P.
Too many labels on any piece of equipment may not have the desired effect. It will also be an enforcement issue as the installers may not pay attention
when they see so many labels.
Negative with Comment
Deike, Jr., Roland E.
EEI votes against the FR-55 revisions to 110.16, since these are prescriptive related practices already covered in NFPA 70E about incident energy, arc
flash boundary, and PPE. Installation related requirements having dated provisions for markings similar to 110.24 would be more appropriate for the NEC.
Sassaman, Harry J.
NECA is mindful of the obligations to provide safe work environments for employees and understands requirements contained within both NFPA 70
National Electrical Code and NFPA 70E Standard for Electrical Safety in the Workplace. Section 110.16 of the NEC is titled “Arc Flash Hazard Warning.”
The information contained in this section should relate to a generic warning for qualified persons. As resolved by NEC CMP-1 in previous NEC
development cycles, the warning should remain general in nature and should not include information about “how to” protect using PPE, because this
section is not about “how to protect.” The NEC is an installation Code that provides information and requirements for electrical installations that essentially
protect persons and property from hazards arising from “use of electricity.” It should not include workplace safety requirements related to how to protect
against electric shock, arc-flash and arc-blast events that could occur when workers are performing energized work, justified or not justified. The label
requirements proposed in FD 55 are currently addressed in NFPA 70E, as they should be. The proposed NEC revision would be inconsistent with the
requirements in 70E and would introduce confusion for installers and inspectors, and would not be practical or enforceable. It also creates problems for
manufacturers that current provide generic arc-flash hazard-warning labels at the factory, which is current provision in this section. The responsibility for
this type of marking detail rests with owners, as indicated in NFPA 70E. With no date and time included in the proposed marking, there are serious
concerns about the validity and accuracy of such information after the service equipment is initially marked. Another problem is that there are two clearing
times (lines side of service OCPD and load side of service OCPD) upon which the values on such a mark or label should be based, further complicating the
proposed marking requirement. NECA is also concerned that a false sense of security that might be created, and that the values of energy provided on
such marks would not be accurate and compromise worker and owner safety. These proposed requirements appear to be beyond the NEC scope and
should be provided only in NFPA 70E, and it is the responsibility of an owner to maintain their accuracy and validity. They should not become an installation
requirement in the NEC. NECA emphasizes that compliance with NFPA 70E is a requirement, not an option.
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First Revision No. 42-NFPA 70-2015 [ Section No. 110.21(A) ]
(A) Manufacturer's Equipment Markings.
The manufacturer’s name, trademark, or other descriptive marking by which the organization responsible for the product can be identified shall
be placed on all electrical equipment. Other markings that indicate voltage, current, wattage, or other ratings shall be provided as specified
elsewhere in this Code . The marking or label shall be of sufficient durability to withstand the environment involved.
(1)
The manufacturer’s name, trademark, or other descriptive marking by which the organization responsible for the product can be identified shall
be placed on all electrical equipment. Other markings that indicate voltage, current, wattage, or other ratings shall be provided as specified
elsewhere in this Code. The marking or label shall be of sufficient durability to withstand the environment involved.
(2)
Reconditioned equipment shall be marked with the name, trademark, or other descriptive marking by which the organization responsible for
reconditioning the electrical equipment can be identified, along with the date of the reconditioning.
Informational Note: Industry standards are available for application of reconditioned and refurbished equipment.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 08:15:16 EST 2015
Committee Statement
Committee
Statement:
The title of 110.21(A) was changed to Equipment Markings since the section is no longer limited to manufacturers marking.
New 110.21(A)(2) provides additional value to manufacturers, owners and authorities having jurisdiction. It provides traceability and
information related to reconditioned equipment.
The informational note provides users with additional guidance regarding this type of reused equipment installation and use.
Response
Message:
Public Input No. 2369-NFPA 70-2014 [Section No. 110.21(A)]
Public Input No. 3489-NFPA 70-2014 [Section No. 110.21(A)]
Ballot Results
83 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
9 Affirmative All
1 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Pierce, James F.
Sassaman, Harry J.
Sood, Mohinder P.
Affirmative with Comment
Iverson, Donald R.
With the following sentence added as the second sentence of the Informational Note: Following the original equipment manufacture’s guidance on
permitted refurbishing and reconditioning activity is critical to the operational performance of the equipment.
Negative with Comment
4/22/2015 10:39 AM
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Barrios, Louis A.
It appears the primary intent of this change is to provide traceability of refurbished or remanufactured equipment resold by 3rd parties and used to replace
existing equipment. Providing company name and trademark labels on equipment that is regularly maintained and/or refurbished by the owner/operator as
part of a regular equipment maintenance program does not enhance the traceability of the work. An industrial exemption should be included that states the
following: "In industrial occupancies, where conditions of maintenance and supervision ensure that only qualfied persons service the equipment, the
markings indicated in 110.21(B)are not required."
Sayler, Kent A.
The proposed text creates an infeasible requirement for all reconditioned equipment to be “marked”, without defining what types of equipment
maintenance, alterations, or adjustments constitute reconditioning. This is the user’s responsibility to ensure the equipment as installed complies with all
applicable requirements and is suitable for service
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First Revision No. 43-NFPA 70-2015 [ Section No. 110.21(B) ]
(B) Field-Applied Hazard Markings.
Where caution, warning, or danger signs or labels are required by this Code, the labels shall meet the following requirements:
(1) The marking shall adequately warn of the hazard hazards using effective words and/or colors and/or symbols , colors, symbols, or any
combination thereof .
Informational Note: ANSI Z535.4-2011, Product Safety Signs and Labels, provides guidelines for suitable font sizes, words, colors,
symbols, and location requirements for labels.
(2) The label shall be permanently affixed to the equipment or wiring method and shall not be hand written.
Exception to (2): Portions of labels or markings that are variable, or that could be subject to changes, shall be permitted to be hand written
and shall be legible.
(3) The label shall be of sufficient durability to withstand the environment involved.
Informational Note: ANSI Z535.4-2011, Product Safety Signs and Labels, provides guidelines for the design and durability of safety signs
and labels for application to electrical equipment.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 08:40:51 EST 2015
Committee Statement
Committee Statement: The possibly unenforceable term and “and/or” has been removed to comply with the NEC Style Manual.
Response Message:
Public Input No. 2180-NFPA 70-2014 [Section No. 110.21(B)]
Ballot Results
85 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 44-NFPA 70-2015 [ Section No. 110.22(C) ]
(C) Tested Series Combination Systems.
Equipment enclosures for circuit breakers or fuses applied in compliance with the series combination ratings marked on the equipment by the
manufacturer in accordance with 240.86(B) shall be legibly marked in the field to indicate the equipment has been applied with a series
combination rating. The marking shall meet the requirements in 110.21(B) and shall be readily visible and state the following:
CAUTION — SERIES COMBINATION SYSTEM RATED ____ AMPERES. IDENTIFIED REPLACEMENT COMPONENTS REQUIRED.
Informational Note: See IEEE 3004.5-2014 Recommended Practice for the Application of Low-Voltage Circuit Breakers in Industrial and
Commercial Power Systems , for further information on series tested systems.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 10:06:45 EST 2015
Committee Statement
Committee
Statement:
The standard provides further information on series tested systems. The standard in the informational note is scheduled to be
published in January 2015.
Response Message:
Public Input No. 3791-NFPA 70-2014 [Section No. 110.22]
Ballot Results
86 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Affirmative with Comment
Hickman, Palmer L.
We are concerned that this FR was made referencing a recommended practice that was not published at the time the Panel met.
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First Revision No. 45-NFPA 70-2015 [ Section No. 110.24(A) ]
(A) Field Marking.
Service equipment in at other than dwelling units shall be legibly marked in the field with the maximum available fault current. The field
marking(s) shall include the date the fault-current calculation was performed and be of sufficient durability to withstand the environment involved.
The calculation shall be documented and made available to those authorized to design, install, inspect, maintain, and operate the system.
Informational Note: The available fault-current marking(s) addressed in 110.24 is related to required short-circuit current ratings of
equipment. NFPA 70E-2012, Standard for Electrical Safety in the Workplace, provides assistance in determining the severity of potential
exposure, planning safe work practices, and selecting personal protective equipment.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 10:13:08 EST 2015
Committee Statement
Committee
Statement:
This revision reinforces the substance of the original requirement and the need for accuracy in the achieved value of maximum available
fault current as it relates to equipment. The requirement was clarified to reflect service equipment both inside and outside.
Response
Message:
Ballot Results
87 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 46-NFPA 70-2015 [ Section No. 110.25 ]
110.25 Lockable Disconnecting Means.
Where If a disconnecting means is required to be lockable open elsewhere in this Code, it shall be capable of being locked in the open position.
The provisions for locking shall remain in place with or without the lock installed.
Exception: Cord Locking provisions for a cord -and-plug connection locking provisions shall not be required to remain in place without the lock
installed.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 10:37:20 EST 2015
Committee Statement
Committee Statement: This revision is an editorial change to provide clarity and to conform to the NEC Style Manual.
Response Message:
Ballot Results
88 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 15-NFPA 70-2015 [ Section No. 110.26(A) ]
(A) Working Space.
Working space for equipment operating at 600 1000 volts, nominal, or less to ground and likely to require examination, adjustment, servicing, or
maintenance while energized shall comply with the dimensions of 110.26(A)(1) , (A)(2), and (A)(3), and (A)(4) or as required or permitted
elsewhere in this Code.
Informational Note: NFPA 70E -2015, Standard for Electrical Safety in the Workplace , provides guidance, such as determining severity
of potential exposure, planning safe work practices, arc flash labeling, and selecting personal protective equipment.
Global FR-18
(1) Depth of Working Space.
The depth of the working space in the direction of live parts shall not be less than that specified in Table 110.26(A)(1) unless the requirements of
110.26(A)(1)(a), (A)(1)(b), or (A)(1)(c) are met. Distances shall be measured from the exposed live parts or from the enclosure or opening if the
live parts are enclosed.
Table 110.26(A)(1) Working Spaces
Minimum Clear Distance
Nominal Voltage to Ground
Condition 1
Condition 2
Condition 3
0–150
914 900 mm (3 ft)
914 900 mm (3 ft)
914 900 mm (3 ft)
151–600
914 900 mm (3 ft)
1.07 1.0 m (3 ft 6 in.)
1.22 1.2 m (4 ft)
601–1000
900 mm (3 ft)
1.2 m (4 ft)
1.5 m (5 ft)
Note: Where the conditions are as follows:
Condition 1 — Exposed live parts on one side of the working space and no live or grounded parts on the other side of the working space, or
exposed live parts on both sides of the working space that are effectively guarded by insulating materials.
Condition 2 — Exposed live parts on one side of the working space and grounded parts on the other side of the working space. Concrete, brick,
or tile walls shall be considered as grounded.
Condition 3 — Exposed live parts on both sides of the working space.
(a) Dead-Front Assemblies. Working space shall not be required in the back or sides of assemblies, such as dead-front switchboards,
switchgear, or motor control centers, where all connections and all renewable or adjustable parts, such as fuses or switches, are accessible
from locations other than the back or sides. Where rear access is required to work on nonelectrical parts on the back of enclosed
equipment, a minimum horizontal working space of 762 mm (30 in.) shall be provided.
(b) Low Voltage. By special permission, smaller working spaces shall be permitted where all exposed live parts operate at not greater than 30
volts rms, 42 volts peak, or 60 volts dc.
(c) Existing Buildings. In existing buildings where electrical equipment is being replaced, Condition 2 working clearance shall be permitted
between dead-front switchboards, switchgear, panelboards, or motor control centers located across the aisle from each other where
conditions of maintenance and supervision ensure that written procedures have been adopted to prohibit equipment on both sides of the
aisle from being open at the same time and qualified persons who are authorized will service the installation.
(2) Width of Working Space.
The width of the working space in front of the electrical equipment shall be the width of the equipment or 762 mm (30 in.), whichever is greater. In
all cases, the work space shall permit at least a 90 degree opening of equipment doors or hinged panels.
(3) Height of Working Space.
The work space shall be clear and extend from the grade, floor, or platform to a height of 2.0 m (61⁄2 ft) or the height of the equipment, whichever
is greater. Within the height requirements of this section, other equipment that is associated with the electrical installation and is located above or
below the electrical equipment shall be permitted to extend not more than 150 mm (6 in.) beyond the front of the electrical equipment.
Exception No. 1: In existing dwelling units, service equipment or panelboards that do not exceed 200 amperes shall be permitted in spaces
where the height of the working space is less than 2.0 m (61⁄2 ft).
Exception No. 2: Meters that are installed in meter sockets shall be permitted to extend beyond the other equipment. The meter socket shall be
required to follow the rules of this section.
Exception No. 3: On battery systems mounted on open racks, the top clearance shall comply with 480.9(D) .
(4) Limited Access.
Where equipment operating at 1000 volts, nominal, or less to ground and likely to require examination, adjustment, servicing, or maintenance
while energized is located in a space with limited access, all of the following shall apply:
(a) Where equipment is installed above a lay-in ceiling, there shall be an opening not smaller than 559 mm × 559 mm (22 in. × 22 in.), or in a
crawl space, there shall be an accessible opening not smaller than 559 mm × 762 mm (22 in. × 30 in.).
(b) The width of the working space shall be the width of the equipment enclosure or a minimum of 762 mm (30 in.), whichever is greater.
(c) All enclosure doors or hinged panels shall be capable of opening a minimum of 90 degrees.
(d) The space in front of the enclosure shall comply with the depth requirements of Table 110.26(A)(1) . The maximum height of the working
space shall be the height necessary to install the equipment in the limited space. A horizontal ceiling structural member or access panel
shall be permitted in this space.
(5) Separation from High-Voltage Equipment.
Where switches, cutouts, or other equipment operating at 1000 volts, nominal, or less are installed in a vault, room, or enclosure where there
are exposed live parts or exposed wiring operating over 1000 volts, nominal, the high-voltage equipment shall be effectively separated from the
space occupied by the low-voltage equipment by a suitable partition, fence, or screen.
Submitter Information Verification
89 of 1802
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Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 15:58:58 EST 2015
Committee Statement
Committee
Statement:
This first revision:
1. Adds an Informational Note to reference NFPA 70E after the parent text in 110.26 since it applies to multiple first level subdivisions in
110.26 and working space is required for equipment that is likely to require examination, adjustment, servicing, or maintenance while
energized.
2. Adds a third exception to 110.26(A)(3) to correlate with battery systems in 480.9(D) for the working space required above top terminal
batteries installed on tiered racks.
3. Adds new second level subdivision “110.26(A)(4) Limited Access” that addresses equipment “located in a space with limited access”
mandating four requirements: (1) above a lay-in ceiling, (2) width of the working space, (3) doors or hinged panels be capable of opening a
minimum of 90 degrees, and (4) space in front of the enclosure. This required the last sentence of 110.26(A) to be clarified for this new list
item.
4. Adds a new less than 1000-volt requirement as 110.26(A)(5) for "Separation from High-Voltage Equipment” correlates with similar
provisions for over 1000 volts in Part III 110.31(A). The change of “600 volts” to “1000 volts” in 110.26(A) and new 110.26(A)(4) was made to
correlate with similar changes to Table 110.26(A)(1) and new 110.26(A)(5).
Items 1 and 3 above originate from the work of a Correlating Committee Task Group to address the action taken by CMP-17 on section
424.66 about (1) requirements for adequate working space for equipment that is likely to require examination, adjustment, servicing, or
maintenance while energized being general requirements and should be in 110.26, (2) avoiding possible confusion from other Code-making
Panels that may implement similar, but differing requirements, (3) requirements for working space in spaces with limited access that must be
practical, feasible and enforceable, and (4) addressing a single general requirement in Chapter 1 for all impacted equipment to provide clarity
and usability of the NEC. The Panel recommends the Correlating Committee forward FR-15 to CMP-17 for public comment relative to deleting
the limited access working space requirements in 424.66.
Item 4 above originates from the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making
Panels 1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview
from 600 volts to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold
requirements to be included relative to present trends.
Response
Message:
Public Input No. 1065-NFPA 70-2014 [Section No. 110.26]
Public Input No. 1513-NFPA 70-2014 [New Section after 110.26(A)(3)]
Public Input No. 3263-NFPA 70-2014 [Section No. 110.26(A)(3)]
Ballot Results
90 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
4/22/2015 10:39 AM
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First Revision No. 17-NFPA 70-2015 [ Section No. 110.26(B) ]
(B) Clear Spaces.
Working space required by this section shall not be used for storage. When normally enclosed live parts are exposed for inspection or servicing,
the working space, if in a passageway or general open space, shall be suitably guarded. Permanent and conspicuous signs shall be provided.
The sign shall meet the requirements in 110.21(B) and shall read as follows:
NOTICE
ELECTRICAL EQUIPMENT WORKING SPACE AND
EGRESS AREA — NO OBSTRUCTION OR STORAGE ALLOWED
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 16:57:08 EST 2015
Committee Statement
Committee
Statement:
There is a perpetual problem with keeping required work spaces clear. This first revision introduces a requirement for a sign and
specific text with an appropriate reference to 110.21(B).
Response
Message:
Public Input No. 641-NFPA 70-2014 [New Section after 110.26(B)]
Ballot Results
91 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Negative with Comment
Barrios, Louis A.
Additional signage has not been shown to solve the stated problem.
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First Revision No. 19-NFPA 70-2015 [ Section No. 110.26(D) ]
(D) Illumination.
Illumination shall be provided for all working spaces about service equipment, switchboards, switchgear, panelboards, or motor control centers
installed indoors and shall not be controlled . Control by automatic means only shall not be permitted . Additional lighting outlets shall not be
required where the work space is illuminated by an adjacent light source or as permitted by 210.70(A)(1), Exception No. 1, for switched
receptacles.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 08:54:01 EST 2015
Committee Statement
Committee
Statement:
This first revision improves clarity and usability that illumination in working spaces for the identified electrical equipment in indoor
locations must have other means of control such as manual operation without relying on automatic controls.
Response
Message:
Public Input No. 451-NFPA 70-2014 [Section No. 110.26(D)]
Public Input No. 550-NFPA 70-2014 [Section No. 110.26(D)]
Ballot Results
92 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 20-NFPA 70-2015 [ Section No. 110.26(E)(2) ]
(2) Outdoor.
Outdoor installations shall comply with 110.26(E)(2)(a) and (b) through (c) .
(a) Installation Requirements. Outdoor electrical equipment shall be the following: installed in suitable enclosures and shall be protected from
accidental contact by unauthorized personnel, or by vehicular traffic, or by accidental spillage or leakage from piping systems. The working
clearance space shall include the zone described in 110.26(A) . No architectural appurtenance or other equipment shall be located in this
zone.
(1) Installed in suitable enclosures
(2) Protected from accidental contact by unauthorized personnel, or by vehicular traffic
(3) Protected from accidental spillage or leakage from piping systems
(b) Work Space. The working clearance space shall include the zone described in 110.26(A) . No architectural appurtenance or other
equipment shall be located in this zone.
Exception to (b): Structural overhangs or roof extensions shall be permitted in this zone.
(c) Dedicated Equipment Space. The space equal to the width and depth of the equipment, and extending from grade to a height of 1.8 m (6 ft)
above the equipment, shall be dedicated to the electrical installation. No piping or other equipment foreign to the electrical installation shall
be located in this zone.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 09:10:30 EST 2015
Committee Statement
Committee
Statement:
This first revision provides a list format for usability.
This revision also inserts a new exception to (b). In outdoor locations, keeping this zone completely clear is not practical in all cases; and
wiring methods could be routed through nonstructural overhangs or roof extensions to safely be installed to such equipment.
Response
Message:
Public Input No. 1226-NFPA 70-2014 [Section No. 110.26(E)(2)]
Public Input No. 4628-NFPA 70-2014 [Section No. 110.26(E)(2)]
Ballot Results
93 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
9 Affirmative All
2 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Affirmative with Comment
Hickman, Palmer L.
In is unclear what "structural overhangs" and "roof extensions" are. These appear to be vague and unenforceable.
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Hittinger, David L.
Editorial: Change the wording in (2) (a) to the following. (a) Installation Requirements. Outdoor electrical equipment shall comply with (a)(1)(2) and (3)
Negative with Comment
Anthony, Michael A.
Although the cases will be rare, to convey the same interior working space conditions into exterior working space conditions is unwise in many campus
power systems.
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First Revision No. 21-NFPA 70-2015 [ Section No. 110.26(F) ]
(F) Locked Electrical Equipment Rooms or Enclosures.
Electrical equipment rooms or enclosures housing electrical apparatus that are controlled by a lock(s) shall be considered accessible to
qualified persons.
(1)
Electrical equipment rooms or enclosures housing electrical apparatus that are controlled by a lock(s) shall be considered accessible to qualified
persons.
(2)
The entrance to all buildings, vaults, rooms, or enclosures containing exposed live parts or exposed conductors operating at 601 to 1000 volts,
nominal, shall be kept locked unless such entrances are under the observation of a qualified person at all times. Permanent and conspicuous
danger signs shall be provided. The danger sign shall meet the requirements in 110.21(B) and shall read as follows:
DANGER — HIGH VOLTAGE — KEEP OUT
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 10:23:33 EST 2015
Committee Statement
Committee
Statement:
This first revision includes a new list item (2) and makes the existing paragraph to 110.26(F) a list item (1), which provides entrance
requirements for 601-1000 volts that is lost with the change from “600 volts” to “1000 volts” in 110.34(C). This revision incorporates the work
of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making Panels 1 and 8 on proposals and comments
in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview from 600 volts to 1000 volts, (2) address
indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements to be included relative to present
trends.
Response
Message:
Public Input No. 1514-NFPA 70-2014 [New Section after 110.26(F)]
Ballot Results
95 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
10 Affirmative All
0 Affirmative with Comments
1 Negative with Comments
1 Abstention
Affirmative All
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Negative with Comment
Barrios, Louis A.
This requirement does not need to be carried over from 110.34(C). Suitable guarding of LV parts is already required in 110.27 and addressed directly in
110.27(A). Relocating this requirement and creating an intermediate voltage level of 601-1000V is redundant and may create confusion. This intermediate
voltage does not exist in global standards, whith which the COde is attempting to correlate. The NEC should make a "clean distinction" that LV is < =1000V
and HV is >1000V.
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Abstention
Anthony, Michael A.
In some cases, though not all, locked electrical closets present a new safety hazard. The difficulty will be most likely in existing facilities so some
retroactive clauses would be helpful. New power systems should be designed with this safety condition up front.
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First Revision No. 48-NFPA 70-2015 [ Section No. 110.27(A) ]
(A) Live Parts Guarded Against Accidental Contact.
Except as elsewhere required or permitted by this Code, live parts of electrical equipment operating at 50 to 1000 volts or more , nominal shall
be guarded against accidental contact by approved enclosures or by any of the following means:
(1) By location in a room, vault, or similar enclosure that is accessible only to qualified persons.
(2) By suitable permanent, substantial partitions or screens arranged so that only qualified persons have access to the space within reach of
the live parts. Any openings in such partitions or screens shall be sized and located so that persons are not likely to come into accidental
contact with the live parts or to bring conducting objects into contact with them.
(3) By insulating covers over exposed conductive parts, removable only by qualified persons having access to the space, such that it is
possible to expose only one phase or polarity at a time.
(4) By location on a suitable balcony, gallery, or platform elevated and arranged so as to exclude unqualified persons.
(5) By elevation above the floor or other working surface as shown in 110.27(A)(5) (a), (b) or (c) below follows :
a.
A minimum of 2.5 m (8 ft) for 50 to 300 volts between ungrounded conductors
b.
A minimum of 2.6 m (8 1⁄2) (8 ft 6 in) for 301 to 600 volts between ungrounded conductors
c.
A minimum of 2.62 m (8 ft 7 in.) for 601 to 1000 volts between ungrounded conductors
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 12:34:52 EST 2015
Committee Statement
Committee
Statement:
This revision incorporates the work of a Task Group assigned by the NEC Correlating Committee to: (1) resolve issues with actions taken by
Code-making Panels 1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under
their purview from 600 volts to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage
threshold requirements to be included relative to present trends. This revision adds to the text of 110.27(A) covering insulated live parts at 600
to 1000 volts based on a voltage adder of 10 mm (0.4 in) per kV. This provides for the 601-1000V elevation guard requirement based on
background material in Comment 1-94 of the 2014 NEC. This is to correlate with the change to 110.33(A)(2).
Editorially removed “suitable” as vague and unenforceable language that is proscribed by 3.2.1 by the NEC Style Manual. “600 volts nominal
to ground” was removed to improve clarity and correlate with changes in 110.33(A)(2). The addition of “between ungrounded” clarifies that the
voltage ranges in this section are between phases rather than phase to ground.
The protection techniques in new item (3) achieve a method of guarding in a fashion that exposes only one phase.
Response
Message:
Public Input No. 382-NFPA 70-2014 [Section No. 110.27(A)]
Public Input No. 1516-NFPA 70-2014 [Section No. 110.27(A)]
Public Input No. 2181-NFPA 70-2014 [Section No. 110.27(A)]
Ballot Results
97 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
4/22/2015 10:39 AM
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98 of 1802
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Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
4/22/2015 10:39 AM
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First Revision No. 49-NFPA 70-2015 [ Section No. 110.27(C) ]
(C) Warning Signs.
Entrances to rooms and other guarded locations that contain exposed live parts shall be marked with conspicuous warning signs forbidding
unqualified persons to enter. The marking shall meet the requirements in 110.21(B) .
Informational Note: For motors, see 430.232 and 430.233 . For over 600 1000 volts, see 110.34 .
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 13:07:48 EST 2015
Committee Statement
Committee
Statement:
This revision incorporates the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by CMP-1 and CMP-8
on proposals and comments in the 2014 NEC cycle relative to changing the voltage thresholds in Articles under their purview from 600 volts
to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements to be
included relative to present trends.
Response
Message:
Public Input No. 1560-NFPA 70-2014 [Section No. 110.27(C)]
Public Input No. 2863-NFPA 70-2014 [Section No. 110.27(C)]
Ballot Results
99 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Affirmative with Comment
Hickman, Palmer L.
We are concerned whether the FR incorporates the correct action word. As written, rooms with exposed live parts are to be marked with warning signs
rather than signs with a different action word such as danger.
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First Revision No. 50-NFPA 70-2015 [ Section No. 110.28 ]
110.28 Enclosure Types.
Enclosures (other than surrounding fences or walls covered in 110.31 ) of switchboards, switchgear, panelboards, industrial control panels,
motor control centers, meter sockets, enclosed switches, transfer switches, power outlets, circuit breakers, adjustable-speed drive systems,
pullout switches, portable power distribution equipment, termination boxes, general-purpose transformers, fire pump controllers, fire pump
motors, and motor controllers, rated not over 600 1000 volts nominal and intended for such locations, shall be marked with an enclosure-type
number as shown in Table 110.28.
Table 110.28 shall be used for selecting these enclosures for use in specific locations other than hazardous (classified) locations. The enclosures
are not intended to protect against conditions such as condensation, icing, corrosion, or contamination that may occur within the enclosure or
enter via the conduit or unsealed openings.
Table 110.28 Enclosure Selection
For Outdoor Use
Enclosure Type Number
3 3R 3S 3X 3RX 3SX 4 4X
6
6P
Incidental contact with the enclosed equipment
X
X
X
X
X
X
X
X
X
X
Rain, snow, and sleet
X
X
X
X
X
X
X
X
X
X
Sleet*
— —
X
—
—
X
— —
—
—
Provides a Degree of Protection Against the Following Environmental Conditions
Windblown dust
X —
X
X
—
X
X
X
X
X
Hosedown
— —
—
—
—
—
X
X
X
X
Corrosive agents
— —
—
X
X
X
— X
—
X
Temporary submersion
— —
—
—
—
—
— —
X
X
Prolonged submersion
— —
—
—
—
—
— —
—
X
For Indoor Use
Provides a Degree of Protection Against the Following Environmental Conditions
Enclosure Type Number
1
2
4
4X
5
6
6P 12 12K 13
Incidental contact with the enclosed equipment
X
X
X
X
X
X
X
X
X
X
Falling dirt
X
X
X
X
X
X
X
X
X
X
Falling liquids and light splashing
— X
X
X
X
X
X
X
X
X
Circulating dust, lint, fibers, and flyings
— —
X
X
—
X
X
X
X
X
Settling airborne dust, lint, fibers, and flyings
— —
X
X
X
X
X
X
X
X
Hosedown and splashing water
— —
X
X
—
X
X —
—
—
Oil and coolant seepage
— —
—
—
—
—
— X
X
X
Oil or coolant spraying and splashing
— —
—
—
—
—
— —
—
X
Corrosive agents
— —
—
X
—
—
X —
—
—
Temporary submersion
— —
—
—
—
X
X —
—
—
Prolonged submersion
— —
—
—
—
—
X —
—
—
*Mechanism shall be operable when ice covered.
Informational Note No. 1: The term raintight is typically used in conjunction with Enclosure Types 3, 3S, 3SX, 3X, 4, 4X, 6, and 6P. The term
rainproof is typically used in conjunction with Enclosure Types 3R, and 3RX. The term watertight is typically used in conjunction with Enclosure
Types 4, 4X, 6, and 6P. The term driptight is typically used in conjunction with Enclosure Types 2, 5, 12, 12K, and 13. The term dusttight is
typically used in conjunction with Enclosure Types 3, 3S, 3SX, 3X, 5, 12, 12K, and 13.
Informational Note No. 2: Ingress protection (IP) ratings may be found in ANSI/NEMA 60529, Degrees of Protection Provided by Enclosures. IP
ratings are not a substitute for Enclosure Type ratings.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 13:12:24 EST 2015
Committee Statement
100 of 1802
Committee
Statement:
This revision incorporates the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making Panels
1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview from
600 volts to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements
to be included relative to present trends.
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This revises "600 volts" to "1000 volts" and adds "covered in 110.31" after "other than surrounding fences or walls" within the parentheses.
Enclosures for specific equipment having this voltage threshold are covered in other articles and product standards such as bus clearances
inside enclosures.
Response
Message:
Public Input No. 1517-NFPA 70-2014 [Section No. 110.28]
Public Input No. 2864-NFPA 70-2014 [Section No. 110.28]
Ballot Results
101 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 52-NFPA 70-2015 [ Section No. 110.30 ]
110.30 General.
Conductors and equipment used on circuits over 600 1000 volts, nominal, shall comply with Part I of this article and with 110.30 through 110.40 ,
which supplement or modify Part I. In no case shall the provisions of this part apply to equipment on the supply side of the service point.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 13:43:02 EST 2015
Committee Statement
Committee
Statement:
This proposed change revises 600 Volts to 1000 volts to correlate with first revision relative to Article 110 Parts II and III.
This revision incorporates the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making Panels
1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview from
600 volts to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements
to be included relative to present trends.
Response
Message:
Public Input No. 1519-NFPA 70-2014 [Section No. 110.30]
Ballot Results
102 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 32-NFPA 70-2015 [ Section No. 110.31 [Excluding any Sub-Sections] ]
Electrical installations in a vault, room, or closet or in an area surrounded by a wall, screen, or fence, access to which is controlled by a lock(s) or
other approved means, shall be considered to be accessible to qualified persons only. The type of enclosure used in a given case shall be
designed and constructed according to the nature and degree of the hazard(s) associated with the installation.
For installations other than equipment as described in 110.31(D) , a wall, screen, or fence shall be used to enclose an outdoor electrical
installation to deter access by persons who are not qualified. A fence shall not be less than 2.1 m (7 ft) in height or a combination of 1.8 m (6 ft) or
more of fence fabric and a 300 mm (1 ft) or more extension utilizing three or more strands of barbed wire or equivalent. The distance from the
fence to live parts shall be not less than given in Table 110.31.
Table 110.31 Minimum Distance from Fence to Live Parts
Minimum Distance to Live Parts
Nominal Voltage
601 1001 –13,799
m
3.05
ft
10
13,800–230,000
4.57
15
Over 230,000
5.49
18
Note: For clearances of conductors for specific system voltages and typical BIL ratings, see ANSI C2-2007, National Electrical Safety Code.
Informational Note: See Article 450 for construction requirements for transformer vaults.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 12:39:48 EST 2015
Committee Statement
Committee
Statement:
This first revision to Table 110.31’s first row for "1001-13,799 volts” correlates with the first revision for new 110.26(A)(5) and 110.26(F)(2).
This revision incorporates the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making Panels
1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview from 600
volts to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements to be
included relative to present trends.
Response
Message:
Public Input No. 1557-NFPA 70-2014 [Section No. 110.31 [Excluding any Sub-Sections]]
Public Input No. 2865-NFPA 70-2014 [Section No. 110.31 [Excluding any Sub-Sections]]
Ballot Results
103 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 22-NFPA 70-2015 [ Section No. 110.31(A) [Excluding any Sub-Sections] ]
Where an electrical vault is required or specified for conductors and equipment operating at over 600 volts, nominal, the following 110.31(A)(1)
to (A)(5) shall apply.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 10:33:31 EST 2015
Committee Statement
Committee
Statement:
This first revision correlates the requirement of operating conditions for electrical equipment contained in vaults with similar requirements in
Part V for Manholes and Other Electrical Enclosures. This revision incorporates the work of a Correlating Committee Task Group to: (1)
resolve issues with actions taken by Code-making Panels 1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing
the voltage threshold in articles under their purview from 600 volts to 1000 volts, (2) address indoor and outdoor electrical substations, and
(3) evaluate other higher voltage threshold requirements to be included relative to present trends.
The date reference is updated for ANSI/ASTM E119-2012a.
Response
Message:
Public Input No. 1521-NFPA 70-2014 [Section No. 110.31(A) [Excluding any Sub-Sections]]
Public Input No. 1728-NFPA 70-2014 [Section No. 110.31(A)(5)]
Ballot Results
105 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 23-NFPA 70-2015 [ Section No. 110.31(B)(1) ]
(1) In Places Accessible to Unqualified Persons.
Indoor electrical installations that are accessible to unqualified persons shall be made with metal-enclosed equipment. Switchgear, unit
substations, transformers, pull boxes, connection boxes, and other similar associated equipment shall be marked with appropriate caution signs.
Openings in ventilated dry-type transformers or similar openings in other equipment shall be designed so that foreign objects inserted through
these openings are deflected from energized parts.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 10:36:01 EST 2015
Committee Statement
Committee
Statement:
This first revision correlates with the revised definition of “Substation” in Article 100. The term “unit substation” does not clarify what a
substation is and the term “unit” does not provide any clarity. This revision incorporates the work of a Correlating Committee Task Group to:
(1) resolve issues with actions taken by Code-making Panels 1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing
the voltage threshold in articles under their purview from 600 volts to 1000 volts, (2) address indoor and outdoor electrical substations, and
(3) evaluate other higher voltage threshold requirements to be included relative to present trends.
Response
Message:
Public Input No. 1520-NFPA 70-2014 [Section No. 110.31(B)(1)]
Ballot Results
106 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 33-NFPA 70-2015 [ Section No. 110.31(D) ]
(D) Enclosed Equipment Accessible to Unqualified Persons.
Ventilating or similar openings in equipment shall be designed such that foreign objects inserted through these openings are deflected from
energized parts. Where exposed to physical damage from vehicular traffic, suitable guards shall be provided. Nonmetallic or metal-enclosed
equipment Equipment located outdoors and accessible to the general public unqualified persons shall be designed such that exposed nuts or
bolts cannot be readily removed, permitting access to live parts. Where nonmetallic or metal-enclosed equipment is accessible to the general
public unqualified persons and the bottom of the enclosure is less than 2.5 m (8 ft) above the floor or grade level, the enclosure door or hinged
cover shall be kept locked. Doors and covers of enclosures used solely as pull boxes, splice boxes, or junction boxes shall be locked, bolted, or
screwed on. Underground box covers that weigh over 45.4 kg (100 lb) shall be considered as meeting meet this requirement.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 12:49:03 EST 2015
Committee Statement
Committee
Statement:
This first revision addresses removing "nonmetallic or metal-enclosed" for clarity, changing “the general public” to “unqualified persons”
relative to the access concern for clarity, and removing "be considered as" for compliance to the NEC Style Manual for unenforceable
terms.
Response
Message:
Public Input No. 2185-NFPA 70-2014 [Section No. 110.31(D)]
Public Input No. 2186-NFPA 70-2014 [Section No. 110.31(D)]
Public Input No. 3993-NFPA 70-2014 [Section No. 110.31(D)]
Ballot Results
107 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Affirmative with Comment
Hickman, Palmer L.
We recommend adding a definition of "unqualified person" to Article 100 or 110 to correlate with the addition of "unqualified person" in this FR. We propose
the following definition from NFPA 70E: "Unqualified Person. A person who is not a qualified person."
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First Revision No. 24-NFPA 70-2015 [ Section No. 110.33(A)(2) ]
(2) Guarding.
Where bare energized parts at any voltage or insulated energized parts above 600 1000 volts, nominal, to ground are located adjacent to such
entrance, they shall be suitably guarded.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 10:38:24 EST 2015
Committee Statement
Committee
Statement:
This revision incorporates the work of a Task Group assigned by the NEC Correlating Committee to: (1) resolve issues with actions taken by
Code-making Panels 1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under
their purview from 600 volts to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage
threshold requirements to be included relative to present trends. .
This revision adds "above 1001 volts or" before "above 600 volts, nominal, to ground" as a companion to revision to 110.27(A). 600V to
1000V will now be covered by 110.27(A)(2). This removes entrance/egress requirements for any equipment up to 1 kV rated less than 1200
A that is less than 6 ft wide.”
Response
Message:
Public Input No. 1522-NFPA 70-2014 [Section No. 110.33(A)(2)]
Ballot Results
108 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
10 Affirmative All
0 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Negative with Comment
Hickman, Palmer L.
We are concerned with "to ground" being removed without substantiation or explanation in the panel statement.
Hittinger, David L.
The wording "to ground" was removed. FR 24 did not include this revision.
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First Revision No. 25-NFPA 70-2015 [ Section No. 110.34(A) ]
(A) Working Space.
Except as elsewhere required or permitted in this Code, equipment likely to require examination, adjustment, servicing, or maintenance while
energized shall have clear working space in the direction of access to live parts of the electrical equipment and shall be not less than specified in
Table 110.34(A) . Distances shall be measured from the live parts, if such are exposed, or from the enclosure front or opening if such are
enclosed.
Exception: Working space shall not be required in back of equipment such as switchgear or control assemblies where there are no renewable
or adjustable parts (such as fuses or switches) on the back and where all connections are accessible from locations other than the back. Where
rear access is required to work on nonelectrical parts on the back of enclosed equipment, a minimum working space of 762 mm (30 in.)
horizontally shall be provided.
Table 110.34(A) Minimum Depth of Clear Working Space at Electrical Equipment
Nominal
Minimum Clear Distance
Voltage
to Ground
Condition 1
Condition 2
Condition 3
601–2500 1001–2500 V
900 mm (3 ft)
1.2 m (4 ft)
1.5 m (5 ft)
2501–9000 V
1.2 m (4 ft)
1.5 m (5 ft)
1.8 m (6 ft)
9001–25,000 V
1.5 m (5 ft)
1.8 m (6 ft)
2.8 m (9 ft)
25,001 V–75 kV
1.8 m (6 ft)
2.5 m (8 ft)
3.0 m (10 ft)
Above 75 kV
2.5 m (8 ft)
3.0 m (10 ft)
3.7 m (12 ft)
Note: Where the conditions are as follows:
Condition 1 — Exposed live parts on one side of the working space and no live or grounded parts on the other side of the working space, or
exposed live parts on both sides of the working space that are effectively guarded by insulating materials.
Condition 2 — Exposed live parts on one side of the working space and grounded parts on the other side of the working space. Concrete, brick,
or tile walls shall be considered as grounded.
Condition 3 — Exposed live parts on both sides of the working space.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 10:49:29 EST 2015
Committee Statement
Committee This first revision changes Table 110.34(A)’s first row to "1001-2500 V" to correlate with the revision to the change in Table 110.26(A)(1) to
Statement: add another row for 601-1000 V from same requirements and aligning Code structure. The present requirements in Table 110.34(A) for 1000
volts (as taken from the row for 601 – 2500 V) are 3, 4 and 5 feet for Conditions 1, 2 and 3 respectively.The conditions and tools for working
on equipment rated 1000 volts is similar to that for 600 volts so that the present requirements for 600 volt working spaces would also apply to
1000 volts. This revision incorporates the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by
Code-making Panels 1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under
their purview from 600 volts to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage
threshold requirements to be included relative to present trends.
Response
Message:
Public Input No. 1558-NFPA 70-2014 [Section No. 110.34(A)]
Ballot Results
109 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
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Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 26-NFPA 70-2015 [ Section No. 110.34(B) ]
(B) Separation from Low-Voltage Equipment.
Where switches, cutouts, or other equipment operating at 600 1000 volts, nominal, or less are installed in a vault, room, or enclosure where
there are exposed live parts or exposed wiring operating at over 600 1000 volts, nominal, the high-voltage equipment shall be effectively
separated from the space occupied by the low-voltage equipment by a suitable partition, fence, or screen.
Exception: Switches or other equipment operating at 600 volts, nominal, or less and serving only equipment within the high-voltage vault, room,
or enclosure shall be permitted to be installed in the high-voltage vault, room, or enclosure without a partition, fence, or screen if accessible to
qualified persons only.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 10:52:57 EST 2015
Committee Statement
Committee
Statement:
This first revision changes "600 volts" to "1000 volts" to correlate with the Panel’s first revisions to 110.31. The requirement is for operating
voltage consideration for separation of lower voltage systems from those that are higher. Other Articles in Chapter 5 and above can modify
this requirement where specific conditions warrant; for example, photovoltaic (PV) and wind systems in Articles 690 and 694. This revision
incorporates the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making Panels 1 and 8 on
proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview from 600 volts to
1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements to be included
relative to present trends.
Response
Message:
Public Input No. 1523-NFPA 70-2014 [Section No. 110.34(B)]
Ballot Results
111 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 27-NFPA 70-2015 [ Section No. 110.34(C) ]
(C) Locked Rooms or Enclosures.
The entrance to all buildings, vaults, rooms, or enclosures containing exposed live parts or exposed conductors operating at over 600 1000 volts,
nominal, shall be kept locked unless such entrances are under the observation of a qualified person at all times.
Permanent and conspicuous danger signs shall be provided. The danger sign shall meet the requirements in 110.21(B) and shall read as
follows:
DANGER — HIGH VOLTAGE — KEEP OUT
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 10:55:13 EST 2015
Committee Statement
Committee
Statement:
This first revision changes "600 volts" to "1000 volts" to correlate with the Panel’s first revision to add new 110.26(F)(2). This revision
incorporates the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making Panels 1 and 8 on
proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview from 600 volts to
1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements to be included
relative to present trends.
Response
Message:
Public Input No. 1524-NFPA 70-2014 [Section No. 110.34(C)]
Ballot Results
112 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 28-NFPA 70-2015 [ Section No. 110.34(D) ]
(D) Illumination.
Illumination shall be provided for all working spaces about electrical equipment. Control by automatic means only shall not be permitted. The
lighting outlets shall be arranged so that persons changing lamps or making repairs on the lighting system are not endangered by live parts or
other equipment.
The points of control shall be located so that persons are not likely to come in contact with any live part or moving part of the equipment while
turning on the lights.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 11:01:28 EST 2015
Committee Statement
Committee
Statement:
This first revision aligns with 110.26(D) for illumination in working spaces about electrical equipment identified in indoor locations to permit
other means of control such as manual operation without relying on automatic controls. Suddenly automatic shutdown of illumination about
higher voltage equipment creates a hazard for those installing, maintaining, and operating electrical equipment.
Response
Message:
Public Input No. 301-NFPA 70-2014 [Section No. 110.34(D)]
Ballot Results
113 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 34-NFPA 70-2015 [ Section No. 110.34(E) ]
(E) Elevation of Unguarded Live Parts.
Unguarded live parts above working space shall be maintained at elevations not less than required by Table 110.34(E) .
Table 110.34(E) Elevation of Unguarded Live Parts Above Working Space
Elevation
Nominal Voltage
Between Phases
m
ft
601–7500 1001–7500 V
2.8 2.7
9
7501–35,000 V
Over 35 kV
2.9
9 ft 6 in.
2.9 m + 9.5 mm/kV
9 ft 6 in. + 0.37 in./kV
above 35
above 35
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 12:52:23 EST 2015
Committee Statement
Committee
Statement:
This first revision changes Table 110.34(E)’s first row to "1001-7500 V 2.7m 9ft" and correlates with the first revision of 110.27(A)(4) in Part II.
This revision incorporates the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making Panels
1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview from 600
volts to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements to be
included relative to present trends.
Response
Message:
Public Input No. 1559-NFPA 70-2014 [Section No. 110.34(E)]
Ballot Results
114 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 36-NFPA 70-2015 [ New Section after 110.40 ]
110.41 Inspections and Tests.
(A) Pre-energization and Operating Tests.
Where required elsewhere in this Code , the complete electrical system design, including settings for protective, switching, and control circuits,
shall be prepared in advance and made available on request to the authority having jurisdiction and shall be tested when first installed on-site.
(B) Test Report.
A test report covering the results of the tests required in 110.41(A) shall be available to the authority having jurisdiction prior to energization
and made available to those authorized to install, operate, test, and maintain the system.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 13:42:20 EST 2015
Committee Statement
Committee
Statement:
A new section 110.41 generally requires pre-energization testing. The testing could include performance and safety testing. The new
requirement is incorporated in Part III of Article 110 and correlates with the inspection and testing requirements contained in other NEC
rules such as those in Article 225 and others. Acceptance testing is just as important for indoor and outdoor locations
Response
Message:
Ballot Results
115 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
10 Affirmative All
0 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
Negative with Comment
Anthony, Michael A.
I do not disagree that this kind of information is necessary for a ready-to-energize system but in many cases the as-built condition of the wiring system is
not available when the system is needed to continue construction. We should work on this language in the next stage so we retain the safety spirit of the PI
without building in complicating inspection conditions for electrical contractors.
Barrios, Louis A.
The proposed new section 110.41 is broad, overly restrictive and falls outside the scope of 90.1(A). There are many elements of a "complete electrical
system design" that are not relevant to the practical safeguarding of persons and property from hazards arising from the use of electricity. The proposed
text is also unenforceable. Is it the responsibility of the AHJ to review and approve "the complete electrical system design"? The new section also requires
the "complete electrical system design" to be tested "when first installed on-site". There are many tests conducted on electrical installations that are not
relevant to practical safeguarding of persons and property. Also, testing installations "when first installed" may not be practical, or verify the safety of the
installation, especially in the case of large projects that may take several years to install and energize.
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First Revision No. 30-NFPA 70-2015 [ Section No. 110.73 ]
110.73 Equipment Work Space.
Where electrical equipment with live parts that is likely to require examination, adjustment, servicing, or maintenance while energized is installed
in a manhole, vault, or other enclosure designed for personnel access, the work space and associated requirements in 110.26 shall be met for
installations operating at 600 1000 volts or less. Where the installation is over 600 1000 volts, the work space and associated requirements in
110.34 shall be met. A manhole access cover that weighs over 45 kg (100 lb) shall be considered as meeting meet the requirements of
110.34(C) .
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 11:16:26 EST 2015
Committee Statement
Committee
Statement:
This first revision changes "600 to 1000 volts" in both places to correlate with the first revisions to 110.26 and 110.34. Removing "be
considered as" complies with the NEC Style Manual relative to unenforceable terms. The change of "600 volts” to “1000 volts" incorporates
the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making Panels 1 and 8 on proposals and
comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview from 600 volts to 1000 volts, (2)
address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements to be included relative to
present trends.
Response
Message:
Public Input No. 1525-NFPA 70-2014 [Section No. 110.73]
Public Input No. 2187-NFPA 70-2014 [Section No. 110.73]
Public Input No. 2868-NFPA 70-2014 [Section No. 110.73]
Ballot Results
116 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 54-NFPA 70-2015 [ Section No. 110.74 ]
110.74 Conductor Installation.
Conductors installed in manholes and other enclosures intended for personnel entry shall be cabled, racked up, or arranged in an approved
manner that provides ready and safe access for persons to enter for installation and maintenance. The installation shall comply with 110.74(A) or
110.74(B) , as applicable.
(A) 600 1000 Volts, Nominal, or Less.
Wire bending space for conductors operating at 600 1000 volts or less shall be provided in accordance with the requirements of 314.28 .
(B) Over 600 1000 Volts, Nominal.
Conductors operating at over 600 1000 volts shall be provided with bending space in accordance with 314.71(A) and (B), as applicable.
Exception: Where 314.71(B) applies, each row or column of ducts on one wall of the enclosure shall be calculated individually, and the single
row or column that provides the maximum distance shall be used.
Submitter Information Verification
Submitter Full Name: CMP 1
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 14:04:36 EST 2015
Committee Statement
Committee
Statement:
This revision incorporates the work of a Correlating Committee Task Group to: (1) resolve issues with actions taken by Code-making Panels
1 and 8 on proposals and comments in the 2014 NEC cycle relative to changing the voltage threshold in articles under their purview from
600 volts to 1000 volts, (2) address indoor and outdoor electrical substations, and (3) evaluate other higher voltage threshold requirements
to be included relative to present trends.
This revises 600 to 1000 volts in (A) and (B) titles and text. This correlates with 314.28 and 314.71.
Response
Message:
Public Input No. 1526-NFPA 70-2014 [Section No. 110.74]
Public Input No. 2869-NFPA 70-2014 [Sections 110.74(A), 110.74(B)]
Ballot Results
117 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Anthony, Michael A.
Barrios, Louis A.
Boyce, Kenneth P.
Deike, Jr., Roland E.
Gallo, Ernest J.
Hickman, Palmer L.
Hittinger, David L.
Iverson, Donald R.
Pierce, James F.
Sassaman, Harry J.
Sayler, Kent A.
Sood, Mohinder P.
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First Revision No. 1201-NFPA 70-2015 [ Section No. 200.6(D) ]
(D) Grounded Conductors of Different Systems.
Where grounded conductors of different systems are installed in the same raceway, cable, box, auxiliary gutter, or other type of enclosure, each
grounded conductor shall be identified by system. Identification that distinguishes each system grounded conductor shall be permitted by one of
the following means:
(1) One system grounded conductor shall have an outer covering conforming to 200.6(A) or (B).
(2) The grounded conductor(s) of other systems shall have a different outer covering conforming to 200.6(A) or 200.6(B) or by an outer
covering of white or gray with a readily distinguishable colored stripe other than green running along the insulation.
(3) Other and different means of identification as allowed by 200.6(A) or (B) that will shall distinguish each system grounded conductor.
The means of identification shall be documented in a manner that is readily available or shall be permanently posted where the conductors of
different systems originate.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 16:08:04 EST 2015
Committee Statement
Committee Statement: Deletion of the word “as” between the “identification” and “allowed” was done to comply with section 3.3.4 of the NEC Style Manual
Response Message:
Public Input No. 3429-NFPA 70-2014 [Section No. 200.6(D)]
Ballot Results
118 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
Summaries of discrepancies. FR1203 – 250.4(A)(1) Two issues: First, the panel statement is not correctly stated. This section is for grounded systems, the
panel statement is for the ungrounded section. Second the version of the standard referenced is the 2017 Edition. Question arises as to the validity of using
that date. It will be published prior to the publication of the NEC, but is not yet published. Also note identical informational note and reference accepted as
FR 1204 by the committee did not show up in TerraView. The panel statement in TerraView for FR 1204 250.4(B)(1) which would be for ungrounded
systems. FR1204 – 250.4(B)(1) Does not show up in TerraView. It is an identical informational note, applicable to ungrounded systems. Same issue with
4/22/2015 10:39 AM
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the date of the standard NFPA 780 FR1209 – 250.24(C)(1) The word Cable is not underlined it needs to be underlined. Note also misspelled word (ables)
in panel statement, it should be “cables” FR1210 – 250.24(C)(2) The words “or Cable” are not underlined they need to be underlined
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First Revision No. 7512-NFPA 70-2015 [ Section No. 210.1 ]
210.1 Scope.
This article covers branch circuits except provides the general requirements for branch circuits. that supply only motor loads, which are covered
in Article 430 . Provisions of this article and Article 430 apply to branch circuits with combination loads.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
National Fire Protection Assoc
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 26 08:38:46 EST 2015
Committee Statement
Committee
Statement:
The text of 210.1 was revised to recognize the expansion of branch circuit requirements outside of Article 210 by deleting the reference to
motors and motor loads. Specific purpose branch circuit requirements in other articles are identified in Table 210.2.
The reference to “amended or supplemented branch circuits” is necessary as 90.3 does not recognize the requirements in Chapter 4 as
amending or supplementing those in Chapter 2. If Chapter 4 was treated the same as Chapters 5, 6 and 7, the entire 210.2 could be
deleted.
Response
Message:
Ballot Results
120 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Hilbert, Mark R.
I agree with the panel action and the first sentence of the statement. The additional statements included in the FR are from early actions and should be
disregarded as they are no longer relevant. This change was part of companion actions to clarify the general requirements for branch circuits are located in
Article 210 and specific purpose branch circuit requirements are found in other articles. As part of the companion actions the text of 210.2 was revised and
along with Table 210.2 relocated to 210.3. Former 210.3 Ratings, was relocated to Part II.
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First Revision No. 7524-NFPA 70-2015 [ Section No. 210.2 ]
210.3 Other Articles for Specific-Purpose Branch Circuits.
Branch circuits shall comply with this article and also with the applicable provisions of other articles of this Code . The provisions for branch
circuits supplying equipment listed in Table 210.3 Table 210.3Table 210.2 lists branch circuit requirements for specific equipment and
applications that amend or supplement the provisions in requirements of this article.
Table 210.3 Specific-Purpose Branch Circuits
Equipment
Article
Air-conditioning and refrigerating equipment
Section
440.6, 440.31, 440.32
Audio signal processing, amplification, and reproduction equipment
640.8
Busways
368.17
Circuits and equipment operating at less than 50 volts
720
Central heating equipment other than fixed electric space-heating equipment
Class 1, Class 2, and Class 3 remote-control, signaling, and power-limited circuits
422.12
725
Cranes and hoists
610.42
Electric signs and outline lighting
600.6
Electric welders
630
Electrified truck parking space
626
Elevators, dumbwaiters, escalators, moving walks, wheelchair lifts, and stairway chair lifts
Fire alarm systems
620.61
760
Fixed electric heating equipment for pipelines and vessels
427.4
Fixed electric space-heating equipment
424.3
Fixed outdoor electrical deicing and snow-melting equipment
426.4
Information technology equipment
645.5
Infrared lamp industrial heating equipment
Induction and dielectric heating equipment
422.48, 424.3
665
Marinas and boatyards
555.19
Mobile homes, manufactured homes, and mobile home parks
550
Motion picture and television studios and similar locations
530
Motors, motor circuits, and controllers
430
Pipe organs
650.7
Recreational vehicles and recreational vehicle parks
Switchboards and panelboards
Theaters, audience areas of motion picture and television studios, and similar locations
X-ray equipment
551
408.52
520.41, 520.52, 520.62
660.2, 517.73
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Mar 02 11:39:04 EST 2015
Committee Statement
Committee
Statement:
The former text of 210.3 regarding branch circuit ratings was relocated to 210.18 as the first requirement in Part II, Branch-Circuit Ratings.
Section 210.2 and Table 210.2 were revised and relocated to 210.3 for consistency and usability as the requirements for “other articles” are
generally located in XXX.3 and any definitions specific to the article are located in XXX.2. The reference to “amended or supplemented
branch circuits” is necessary as 90.3 does not recognize the requirements in Chapter 4 as amending or supplementing those in Chapter 2.
Response
Message:
Ballot Results
121 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
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1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 357-NFPA 70-2015 [ Section No. 210.3 ]
210.17 Guest Rooms and Guest Suites.
Guest rooms and guest suites that are provided with permanent provisions for cooking shall have branch circuits installed to meet the rules for
dwelling units.
210.18 Rating.
Branch circuits recognized by this article shall be rated in accordance with the maximum permitted ampere rating or setting of the overcurrent
device. The rating for other than individual branch circuits shall be 15, 20, 30, 40, and 50 amperes. Where conductors of higher ampacity are
used for any reason, the ampere rating or setting of the specified overcurrent device shall determine the circuit rating.
Exception: Multioutlet branch circuits greater than 50 amperes shall be permitted to supply nonlighting outlet loads on industrial premises
where conditions of maintenance and supervision ensure that only qualified persons service the equipment.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Sat Jan 24 06:24:36 EST 2015
Committee Statement
Committee
Statement:
Relocate all of Section 210.3 to the first section of Part II. Branch circuit ratings are more appropriately located in Part II which is Titled
Branch Circuit ratings. This change will allow for 210.3 to be open to a section "Other Articles" similar to Sections xxx.3 in other Articles.
This relocated section would be renumbered 210.18. Relocate Section 210.18 to 210.17 since Section 210.17 was deleted.
Response
Message:
Ballot Results
123 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 322-NFPA 70-2015 [ Section No. 210.4(D) ]
(D) Grouping.
The ungrounded and grounded circuit conductors of each multiwire branch circuit shall be grouped by cable ties or similar means in at least one
location within the panelboard or other point of origination. in accordance with 200.4(B) .
Exception: The requirement for grouping shall not apply if the circuit enters from a cable or raceway unique to the circuit that makes the
grouping obvious or if the conductors are identified at their terminations with numbered wire markers corresponding to the appropriate circuit
number.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 20:49:21 EST 2015
Committee Statement
Committee
Statement:
The panel has made this revision to Sec. 210.4(D) to simply now reference Sec. 200.4(B) for both ungrounded and grounded
conductors.
Response Message:
Public Input No. 1684-NFPA 70-2014 [Section No. 210.4(D)]
Ballot Results
124 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 302-NFPA 70-2015 [ Section No. 210.5(C)(1) ]
(1) Branch Circuits Supplied from More Than One Nominal Voltage System.
Where the premises wiring system has branch circuits supplied from more than one nominal voltage system, each ungrounded conductor of a
branch circuit shall be identified by phase or line and system at all termination, connection, and splice points in compliance with 210.5(C)(1)(a)
and (b).
(a) Means of Identification. The means of identification shall be permitted to be by separate color coding, marking tape, tagging, or other
approved means.
(b) Posting of Identification Means. The method utilized for conductors originating within each branch-circuit panelboard or similar branch-circuit
distribution equipment shall be documented in a manner that is readily available or shall be permanently posted at each branch-circuit
panelboard or similar branch-circuit distribution equipment. The label shall be of sufficient durability to withstand the environment involved
and shall not be handwritten.
Exception: In existing installations where a voltage system(s) already exists and a different voltage system is being added, it is permissible to
mark only the new system voltage at each termination, connection , and splice point in compliance with 210.5(C)(1)(a) and (b). Labeling is
required at each voltage system distribution equipment to identify that only one voltage system has been marked.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 09 14:34:44 EST 2015
Committee Statement
Committee
Statement:
The panel has made this change to (1)(b) to provide the necessary clarity for this marking requirement. It is also necessary to require that
the label be durable and able to withstand the environment in which it is installed, as well as legible and not handwritten. The panel added an
exception since it concludes that it is not practical to remove every device, fixture, connection or opening in the old system to mark the
existing wiring. Requiring labeling at each voltage system distribution equipment would identify that only the added system has been
identified with a unique coding system.
Response
Message:
Public Input No. 2712-NFPA 70-2014 [New Section after 210.5]
Public Input No. 4496-NFPA 70-2014 [Section No. 210.5(C)(1)]
Ballot Results
125 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Hilbert, Mark R.
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I agree with the proposed text regarding the durability of the label so I am voting affirmative at the first draft stage. However, I do not agree with adding the
proposed exception. The requirements of the NEC are not retroactive and therefore would not require of a panelboard installed prior to the addition of a
new system or prior to the inclusion of 210.5(C) in the NEC to meet the marking chosen for panelboards installed after.
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First Revision No. 303-NFPA 70-2015 [ Section No. 210.5(C)(2) ]
(2) Branch Circuits Supplied from Direct-Current Systems.
Where a branch circuit is supplied from a dc system operating at more than 50 60 volts, each ungrounded conductor of 4 AWG or larger shall be
identified by polarity at all termination, connection, and splice points by marking tape, tagging, or other approved means; each ungrounded
conductor of 6 AWG or smaller shall be identified by polarity at all termination, connection, and splice points in compliance with 210.5(C)(2)(a)
and (b). The identification methods utilized for conductors originating within each branch-circuit panelboard or similar branch-circuit distribution
equipment shall be documented in a manner that is readily available or shall be permanently posted at each branch-circuit panelboard or similar
branch-circuit distribution equipment.
(a) Positive Polarity, Sizes 6 AWG or Smaller. Where the positive polarity of a dc system does not serve as the connection point for the
grounded conductor, each positive ungrounded conductor shall be identified by one of the following means:
(1) A continuous red outer finish
(2) A continuous red stripe durably marked along the conductor’s entire length on insulation of a color other than green, white, gray, or
black
(3) Imprinted plus signs (+) or the word POSITIVE or POS durably marked on insulation of a color other than green, white, gray, or black,
and repeated at intervals not exceeding 610 mm (24 in.) in accordance with 310.120(B)
(b) Negative Polarity, Sizes 6 AWG or Smaller. Where the negative polarity of a dc system does not serve as the connection point for the
grounded conductor, each negative ungrounded conductor shall be identified by one of the following means:
(1) A continuous black outer finish
(2) A continuous black stripe durably marked along the conductor’s entire length on insulation of a color other than green, white, gray, or red
(3) Imprinted minus signs (–) or the word NEGATIVE or NEG durably marked on insulation of a color other than green, white, gray, or red, and
repeated at intervals not exceeding 610 mm (24 in.) in accordance with 310.120(B)
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 09 14:48:27 EST 2015
Committee Statement
Committee Statement: 50 volts is changed to 60 volts to align with new Art. 712 for DC microgrids.
Response Message:
Public Input No. 4607-NFPA 70-2014 [Section No. 210.5(C)(2)]
Ballot Results
127 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
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Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 345-NFPA 70-2015 [ Section No. 210.6(D) ]
(D) 600 Volts Between Conductors.
Circuits exceeding 277 volts, nominal, to ground and not exceeding 600 volts, nominal, between conductors shall be permitted to supply the
following:
(1) The auxiliary equipment of electric-discharge lamps mounted in permanently installed luminaires where the luminaires are mounted in
accordance with one of the following:
a.
Not less than a height of 6.7 m (22 ft) on poles or similar structures for the illumination of outdoor areas such as highways, roads,
bridges, athletic fields, or parking lots
b.
Not less than a height of 5.5 m (18 ft) on other structures such as tunnels
Informational Note: See 410.137 for auxiliary equipment limitations.
(2) Cord-and-plug-connected or permanently connected utilization equipment other than luminaires
(3) Luminaires powered from direct-current systems where the luminaire contains a listed, dc-rated ballast that provides isolation between the
dc power source and the lamp circuit and protection from electric shock when changing lamps. either of the following apply:
a.
The luminaire contains a listed, dc-rated ballast that provides isolation between the dc power source and the lamp circuit and
protection from electric shock when changing lamps.
b.
The luminaire contains a listed, dc-rated ballast and has no provision for changing lamps.
Exception No. 1 to (B), (C), and (D): For lampholders of infrared industrial heating appliances as provided in 425.14 422.14 .
Exception No. 2 to (B), (C), and (D): For railway properties as described in 110.19 .
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 14:27:53 EST 2015
Committee Statement
Committee
Statement:
An option for luminaires that have no provision for changing lamps has been added to address the increased use of this type of
lighting with LEDs.
Response Message:
Public Input No. 4498-NFPA 70-2014 [Section No. 210.6(D)]
Ballot Results
129 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
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Coluccio, Frank
I agree with the committee statement
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First Revision No. 319-NFPA 70-2015 [ Section No. 210.7 ]
210.7 Multiple Branch Circuits.
Where two or more branch circuits supply devices or equipment on the same yoke or mounting strap, a means to simultaneously disconnect the
ungrounded conductors supplying those devices or equipment shall be provided at the point at which the branch circuits originate.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 15:32:22 EST 2015
Committee Statement
Committee
Statement:
The addition of “or equipment” adds clarity to this section to ensure the simultaneous disconnection of all ungrounded conductors
supplying devices or equipment on the same yoke or mounting strap.
Response
Message:
Public Input No. 508-NFPA 70-2014 [Section No. 210.7]
Ballot Results
131 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Hilbert, Mark R.
I agree with revising the section. However, the opening part of the paragraph already identifies the requirement is to simultaneously disconnect the
ungrounded conductors for devices or equipment. Removing the redundant reference to "devices" and adding the word “supply” in the current text as
follows would add clarity: “Where two or more branch circuits supply devices or equipment on the same yoke or mounting strap, a means to simultaneously
disconnect the ungrounded supply conductors shall be provided at the point at which the branch circuits originate.”
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First Revision No. 333-NFPA 70-2015 [ Section No. 210.8 [Excluding any Sub-Sections] ]
Ground-fault circuit-interrupter protection for personnel shall be provided as required in 210.8(A) through (D) and 210.8(B) . The ground-fault
circuit interrupter shall be installed in a readily accessible location.
Informational Note No. 1: See 215.9 for ground-fault circuit-interrupter protection for personnel on feeders.
Informational Note No. 2: See 422.5(A) for GFCI requirements for appliances.
For the purposes of this section, when determining distance from receptacles the distance shall be measured as the shortest path the cord of an
appliance connected to the receptacle would follow without piercing a floor, wall, ceiling, or fixed barrier, or passing through a door, doorway, or
window.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 07:46:28 EST 2015
Committee Statement
Committee
Statement:
An informational note has been added to direct Code users to 422.5(A) for the GFCI requirements for appliances that were formerly located
in 210.8(B).
During the Panel 2 deliberations for the 2014 NEC there were lengthily discussions on how measurements were made but no clear
guidance was given in the form of enforceable text. The Panel discussions were clear that the measurement was to be the shortest path a
cord could take without penetrating a doorway, floor, etc. The proposed language clarifies how measurements are to be made under 210.8.
Response
Message:
Public Input No. 1436-NFPA 70-2014 [New Section after 210.8]
Public Input No. 1915-NFPA 70-2014 [Section No. 210.8(A)]
Public Input No. 2541-NFPA 70-2014 [Section No. 210.8]
Public Input No. 2806-NFPA 70-2014 [Section No. 210.8(B)]
Public Input No. 2991-NFPA 70-2014 [Section No. 210.8(A)]
Public Input No. 594-NFPA 70-2014 [Section No. 210.8 [Excluding any Sub-Sections]]
Public Input No. 593-NFPA 70-2014 [Section No. 210.8]
Public Input No. 2423-NFPA 70-2014 [Section No. 210.8 [Excluding any Sub-Sections]]
Ballot Results
132 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
4/22/2015 10:39 AM
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Coluccio, Frank
I agree with the committee statement
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First Revision No. 346-NFPA 70-2015 [ Section No. 210.8(A) ]
(A) Dwelling Units.
All 125-volt 125- and 250- volt , single-phase, 15- and 20-ampere receptacles installed in the locations specified in 210.8(A) (1) through (10) shall
have ground-fault circuit-interrupter protection for personnel.
(1) Bathrooms
(2) Garages, and also accessory buildings that have a floor located at or below grade level not intended as habitable rooms and limited to
storage areas, work areas, and areas of similar use
(3) Outdoors
Exception to (3): Receptacles that are not readily accessible and are supplied by a branch circuit dedicated to electric snow-melting,
deicing, or pipeline and vessel heating equipment shall be permitted to be installed in accordance with 426.28 or 427.22, as applicable.
(4) Crawl spaces — at or below grade level
(5) Unfinished basements — for purposes of this section, unfinished basements are defined as portions or areas of the basement not intended
as habitable rooms and limited to storage areas, work areas, and the like
Exception to (5): A receptacle supplying only a permanently installed fire alarm or burglar alarm system shall not be required to have
ground-fault circuit-interrupter protection.
Informational Note: See 760.41(B) and 760.121(B) for power supply requirements for fire alarm systems.
Receptacles installed under the exception to 210.8(A) (5) shall not be considered as meeting the requirements of 210.52(G).
(6) Kitchens — where the receptacles are installed to serve the countertop surfaces
(7) Sinks — where receptacles are installed within 1.8 m (6 ft) of the outside edge of the sink
(8) Boathouses
(9) Bathtubs or shower stalls — where receptacles are installed within 1.8 m (6 ft) of the outside edge of the bathtub or shower stall
(10) Laundry areas
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 15:10:00 EST 2015
Committee Statement
Committee
Statement:
GFCI Protection has been expanded to 250V receptacle outlets located in dwelling units, as a shock hazard exist with utilization
equipment at these voltage levels.
The Panel has clarified the text to improve enforceability.
Response
Message:
Public Input No. 516-NFPA 70-2014 [Section No. 210.8(A)]
Public Input No. 3054-NFPA 70-2014 [Section No. 210.8(A)]
Ballot Results
134 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
9 Affirmative All
2 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
King, Donald M.
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LaRocca, Robert L.
Manche, Alan
Thorwegen, Jr., Stephen J.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Hilbert, Mark R.
I am supporting this revision at the first daft stage as I believe there is merit in the public’s review comment on the proposed changes. There is no doubt
that GFCI protection saves lives and plays an important role in our daily lives. However, there is not enough substantiation in PI 516 to expand the
requirements to include 15 and 20 ampere, 250 volt, receptacle outlets. Generally 250 volt receptacle outlets in dwelling units are installed for specific
purpose equipment such as room air conditioners, electric ranges, electric dryers, etc. The GFCI requirements for specific purpose utilization equipment
should be located in the article covering the specific equipment. Nothing prevents the use of GFCI protection for these receptacle outlets today if desired. I
agree that revising 210.8(A)(5) would be beneficial, but as proposed the reference to “areas of a basement” has been lost and therefore does not aid
enforcement. How would a habitable area within a basement that has been finished but not as a “room” be treated? Another consideration would be to
revise (A)(5) to read as follows: “Unfinished basements – for the purposes of this section are defined as areas or rooms in basements not intended as
habitable.”
Negative with Comment
McGovern, William J.
While the concept of expansion of GFCI protection for personnel is always a good idea, Code adoption should be based on solid substantiation. Sufficient
substantiation has not been provided to expand GFCI protection to 250 volt receptacles in garages based solely on the proximity of 125 volt GFCI
receptacles in the same area. 125 volt receptacles are typically used for small cord and plug appliances possibly with the use of extension cords that may
be subject to hard usage and wet locations. 250 volt receptacles for equipment such as air compressors and table saws are more stationary and do not see
the same type of hard use. Chop saws are typically 120 volt and would be required to be connected to a GFCI protected outlet. There is presently nothing
that would prohibit installing these types of devices in dwelling units.
Wood, Thomas H.
PI 516 addressed power tools in the statement. Clothes dryer (and other appliances) receptacles would fall under this requirement and no substantiation or
data has been provided to warrant this requirement for these items.
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First Revision No. 347-NFPA 70-2015 [ Section No. 210.8(B) ]
(B) Other Than Dwelling Units.
All 125-volt, single-phase, 15- and 20-ampere receptacles installed in the locations specified in 210.8(B) (1) through (8) shall have ground-fault
circuit-interrupter protection for personnel. All 125-volt, single-phase, 15- and 20-ampere receptacles installed in the locations specified in
210.8(B)(1) through (8) shall have ground-fault circuit-interrupter protection for personnel.
(1) Class A Ground-Fault Circuit-Interrupter Protection (GFCI).
(a) All single-phase receptacles rated 150 volts to ground or less, 50 amperes or less, shall have GFCI protection for personnel,
(b) All three-phase receptacles rated 150 volts to ground or less, 100 amperes or less, shall have GFCI protection for personnel.
(2) Classes C, D, or E Special-Purpose Ground-Fault Circuit-Interrupter Protection (SPGFCI).
(a) All single-phase receptacles rated more than 150 volts to ground and up to 600 volts between ungrounded conductors, 100 amperes or
less, shall have special-purpose ground-fault circuit-interrupter (SPGFCI) protection for personnel.
(b) All three-phase receptacles rated more than 150 volts to ground and up to 600 volts between ungrounded conductors, 100 amperes or
less, shall have special-purpose ground-fault circuit-interrupter (SPGFCI) protection for personnel.
(3) Locations.
(a) Bathrooms
(b) Kitchens
(c) Rooftops
(d) Outdoors
Exception No. 1 to (3): Receptacles on rooftops shall not be required to be readily accessible other than from the rooftop.
Exception No. 1 to (c) and (d): Receptacles that are not readily accessible and are supplied by a branch circuit dedicated to electric
snow-melting, deicing, or pipeline and vessel heating equipment shall be permitted to be installed in accordance with 426.28 or 427.22 ,
as applicable.
Exception No. 2 to (d): In industrial establishments only, where the conditions of maintenance and supervision ensure that only qualified
personnel are involved, an assured equipment grounding conductor program as specified in 590.6(B)(2) shall be permitted for only those
receptacle outlets used to supply equipment that would create a greater hazard if power is interrupted or having a design that is not
compatible with GFCI protection.
(e) Sinks — where receptacles are installed within 1.8 m (6 ft) of the outside edge of the sink
Exception No. 1 to (e): In industrial laboratories, receptacles used to supply equipment where removal of power would introduce a greater
hazard shall be permitted to be installed without GFCI protection.
Exception No. 2 to (e): For receptacles located in patient bed locations of general care or critical care areas of health care facilities other
than those covered under 210.8(B) (1), GFCI protection shall not be required.
(f)
Indoor wet locations
(g) Locker rooms with associated showering facilities
(h) Garages, service bays, and similar areas other than vehicle exhibition halls and showrooms
(i)
Crawl spaces — GFCI protection shall be provided for lighting outlets in crawl spaces at or below grade level.
(j)
Unfinished basements — for the purposes of this section, unfinished basements are defined as portions or areas of the basement not
intended as habitable rooms.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 15:25:29 EST 2015
Committee Statement
136 of 1802
Committee
Statement:
The requirements in this section have been expanded to recognize the fact that the shock hazard is not limited to 15 and 20A 125 volt
circuits.
UL 943C defines protective devices intended to provide protection of personnel in circuits that exceed 250 volts up to 600 volts. Listed
devices that meet the requirements of UL 943C are now available on the market.
The proposed revision to exception 3 is not within the purview of Panel 2 and therefore has not been included as part of the first
revision.
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Response
Message:
Public Input No. 592-NFPA 70-2014 [Section No. 210.8(B)]
Public Input No. 3369-NFPA 70-2014 [Section No. 210.8(B)]
Public Input No. 2192-NFPA 70-2014 [Section No. 210.8(B)]
Public Input No. 147-NFPA 70-2014 [New Section after 210.8(B)]
Public Input No. 564-NFPA 70-2014 [Section No. 210.8(B)]
Public Input No. 2702-NFPA 70-2014 [Section No. 210.70(A)(3)]
Public Input No. 3239-NFPA 70-2014 [Section No. 210.8(B)]
Public Input No. 1432-NFPA 70-2014 [New Section after 210.8(B)]
Ballot Results
137 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
5 Affirmative All
4 Affirmative with Comments
4 Negative with Comments
0 Abstention
Affirmative All
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
King, Donald M.
Thorwegen, Jr., Stephen J.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Hilbert, Mark R.
I am supporting this at the first draft stage to allow the public a chance to comment on expanding the GFCI requirements in other than dwellings and I
agree with deleting Exception (1) to (3) regarding the ready access to receptacles on rooftops. The substantiation provided is insufficient with regard to
expanding the current Class A GFCI ampacity, voltage and phase requirements and to now mandate special-purpose ground-fault protection circuitinterrupter, Class C, D or E (SPGFCI), protection for higher voltages as general branch circuit requirements. At these expanded levels the receptacle
outlets will likely be used for specific purpose portable or other cord and plug connected equipment. Specific-purpose ground-fault protection requirements
should be located in the applicable article for the equipment or the conditions such as 422 or 590 as opposed to a general branch circuit requirement in
210. If the proposed expansions of 210.8(B) continues, the first revision will need rewording before it can be enforced. At a minimum the opening
paragraph will need to be revised. As proposed it identifies that subsections (1) – (8) apply to 125 volt, 15 and 20 ampere, single phase receptacles when
the subsections themselves are expanded to include higher voltages, greater ampacities and three phase receptacles.
LaRocca, Robert L.
The text added in 210.8(B) does not correspond to the revised text in 210.8(B)(1) through 210.8(B)(3). Section 210.8(B) should read as follows in order to
correct this and add clarity: B) Other Than Dwelling Units. All receptacles installed in the locations specified in 210.8(B)(3) shall have ground-fault circuitinterrupter protection for personnel in accordance with 210.8(B)(1) or 210.8(B)(2) .
Wood, Thomas H.
I support the FR but don’t agree that exception 1 to (3) should be deleted from the text. The committee accepted this revision in 2014 (see ROP 2-52) to
add clarity to the code. I agree with the original submitter’s statement but the fact is there are individuals and jurisdictions who believe that having to use a
ladder to access something makes in NOT readily accessible. This exception should remain for clarification purposes. (i) what about crawl spaces in attics
or other areas?
Negative with Comment
Boynton, Charles L.
Industrial Exemption should be expanded to the locations: (c) Rooftops, (f) indoor wet locations, (h) Garages, (i) crawlspaces, and (j) unfinished
basements for Special Purpose Ground Fault Circuit-Interrupter devices (SPGFCI). These devices may present nuisance trips on certain types of
equipment used in these areas and present more of a hazard by shutting down critical equipment. Assurance of proper grounding and maintenance
practices by qualified personnel would ensure the safety of personnel in these areas as it does today.
Buuck, Daniel
The added GFCI requirements were not justified by any submitted reports. The proponent stated that the use is based on electrocutions that occurred in
industrial settings, yet this would apply to all occupancies other than dwellings--even those far different from an industrial occupancy. Regarding the
introduction of SPGFCI devices: Since they were introduced on the market last year, there is not sufficient field data to know how well they perform. In
addition, there are proprietary concerns, since only one manufacturer holds the patent rights for these devices. It is clearly too early to mandate these
devices without closer study by the panel.
Manche, Alan
FR 347 adds a requirement for the use of Classes C, D or E Special Purpose Ground-Fault Circuit Interrupters (SPGFCI) in specified locations where the
voltage is more that 150 volts to ground. These devices are listed to UL 943C. According to UL 943C, in applications where the voltage to ground exceeds
150 volts but does not exceed 300 volts, a Class C SPGFCI is to be used. In applications where the voltage to ground exceeds 300 volts, a Class D
SPGFCI may be used if an oversized equipment grounding conductor is installed. If an oversized equipment grounding conductor is not installed, a Class E
SPGFCI must be used. No mention of these requirements is made in the proposed Code text, thus there is the possibility of these devices being
misapplied, endangering persons who should be protected from shock. The other proposed changes in this FR are acceptable; however, due to the
potential misapplication of SPGFCIs this FR should be rejected and revised to address the safety application gaps.
McGovern, William J.
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While the concept of expansion of GFCI protection for personnel is always a good idea, code adoption should be based on solid substantiation. Sufficient
substantiation has not been provided to expand GFCI protection beyond 125 volt receptacles in the areas specified other than the fact that new products
have been developed for sale in the market place. There is presently nothing that would prohibit installing these types of devices in existing occupancies.
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First Revision No. 348-NFPA 70-2015 [ Section No. 210.8(C) ]
(C) Boat Hoists.
GFCI protection shall be provided for outlets not exceeding 240 volts that supply boat hoists installed in dwelling unit locations.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 15:37:47 EST 2015
Committee Statement
Committee
Statement:
Fixed appliances such as boat hoists along with their related GFCI protection requirements, are more appropriately covered in Chapter
Four, Article 422. GFCI protection rules for other appliances such as vending machines, electric drinking fountains, air inflation machines and
automotive vacuum machines already exist in Article 422. Relocating the requirements for boat hoists to Article 422 promotes consistency
and usability while addressing the hazard for both new and existing conditions.
CMP-2 requests that CMP-17 review and consider the actions proposed for PI's relocated to Article 422. CMP-2 has evaluated the actions
proposed for boat hoists and have included their comments.
Response
Message:
Public Input No. 1434-NFPA 70-2014 [Section No. 210.8(C)]
Public Input No. 2422-NFPA 70-2014 [Section No. 210.8(C)]
Public Input No. 4036-NFPA 70-2014 [Section No. 210.8(C)]
Ballot Results
139 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
9 Affirmative All
1 Affirmative with Comments
3 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
LaRocca, Robert L.
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement this should be included in article 422
Negative with Comment
Domitrovich, Thomas A.
Moving this requirement to Article 422, providing the option for appliances equipped with GFCI protection to meet this requirement, would reduce the
existing protection afforded by the NEC. For new construction, GFCI protection afforded in the outlet or in the circuit breaker is the best solution for safety
as this solution pays no regards to whether or not GFCI protection is provided for in the cord of the appliance. Because appliance UL standards do not
currently require GFCI protection in cords, a lack of consistency may exist with regard to the availability of GFCI protection in cords of appliances. Because
replacements of this equipment may or may not require inspection, depending upon jurisdiction and whether or not a permit is required to be pulled before
replacing an appliance, the provision of GFCI protection for appliances, if left to the appliance cord for protection, has a very good likelihood of not being
provided when the appliance is replaced post construction.
King, Donald M.
4/22/2015 10:39 AM
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The requirements for GFCI protection of boat hoists need to remain in Section 210.8(C). The safety afforded with the present code text will be diminished if
requirements are moved to Article 422 as receptacle outlets may be left unprotected where cord and plug boat hoists are installed.
Manche, Alan
The 2014 NEC addresses the hazard associate with boat hoists beginning with the outlet serving the boat hoist up to 240V. Protection is not limited to just
protecting the “appliance.” There can be cord and plug connected boat hoists. A hazard may exist when inserting or removing the plug from the receptacle,
therefore the protection needs to be in the branch circuit. Since the protection needs to remain in the branch circuit the requirement in the NEC must
remain in 210.8.
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First Revision No. 349-NFPA 70-2015 [ Section No. 210.8(D) ]
(C) Kitchen Dishwasher Branch Circuit.
GFCI protection shall be provided for outlets that supply dishwashers installed in dwelling unit locations.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 16:14:46 EST 2015
Committee Statement
Committee
Statement:
Fixed appliances such as dishwashers, along with their related GFCI protection requirements, are more appropriately covered in Chapter
Four. GFCI protection rules for other appliances such as vending machines, electric drinking fountains, air inflation machines and automotive
vacuum machines already exist in Article 422. Relocating the requirements for dishwashers to Article 422 promotes consistency and
usability while addressing the hazard for both new and existing conditions.
CMP-2 request the NEC CC forward this PI to CMP-17 for information.
Response
Message:
Public Input No. 2420-NFPA 70-2014 [Section No. 210.8(D)]
Public Input No. 1435-NFPA 70-2014 [Section No. 210.8(D)]
Public Input No. 1430-NFPA 70-2014 [Section No. 210.8(D)]
Ballot Results
141 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
10 Affirmative All
1 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Negative with Comment
Domitrovich, Thomas A.
Moving this requirement to Article 422, providing the option for appliances equipped with GFCI protection to meet this requirement, would reduce the
existing protection afforded by the NEC. For new construction, GFCI protection afforded in the outlet or in the circuit breaker is the best solution for safety
as this solution pays no regards to whether or not GFCI protection is provided for in the cord of the appliance. Because appliance UL standards do not
currently require GFCI protection in cords, a lack of consistency may exist with regard to the availability of GFCI protection in cords of appliances. Because
replacements of this equipment may or may not require inspection, depending upon jurisdiction and whether or not a permit is required to be pulled before
replacing an appliance, the provision of GFCI protection for appliances, if left to the appliance cord for protection, has a very good likelihood of not being
provided when the appliance is replaced post construction.
King, Donald M.
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The requirements for GFCI protection for dishwashers needs to remain in Section 210.8(D). Requiring the branch circuit installed to serve a dishwasher to
be GFCI protected will ensure that the protection is provided for all units including those that are not provided with GFCI protection by the manufacturer.
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First Revision No. 330-NFPA 70-2015 [ Section No. 210.11(C)(3) ]
(3) Bathroom Branch Circuits.
In addition to the number of branch circuits required by other parts of this section, at least one 120-volt, 20-ampere branch circuit shall be
provided to supply a supply the bathroom(s) receptacle outlet(s). Such circuits shall have no other outlets.
Exception: Where the 20-ampere circuit supplies a single bathroom, outlets for other equipment within the same bathroom shall be permitted to
be supplied in accordance with 210.23(A)(1) and (A)(2).
(4) Garage Branch Circuits.
In addition to the number of branch circuits required by other parts of this section, at least one 20-ampere branch circuit shall be provided to
supply garage receptacle outlet(s).
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 04:41:00 EST 2015
Committee Statement
Committee
Statement:
The word "a" that was added in the 2014 edition is singular and limits the required 20 amp branch circuit to serve only one bathroom's
receptacle outlets. This, thereby, requires a separate 20 amp branch circuit for each bathroom's receptacle outlets. The proposed revision
clarifies that the required 20 amp branch circuit is permitted to serve the receptacle outlets in more than one bathroom.
Add (C)(4) Many appliance and tools used in dwelling unit garages are rated at 12 to 16 amperes or higher and demand at least a 20
ampere rated branch circuit. A 15 ampere rated branch circuit in the modern dwelling unit garage is typically not sufficient. While most
residential electricians are already installing 20 ampere rated branch circuits in dwelling unit garages, the NEC currently does not require or
demand this 20 ampere rating.
Response
Message:
Public Input No. 1010-NFPA 70-2014 [New Section after 210.11(C)]
Public Input No. 409-NFPA 70-2014 [Section No. 210.11(C)(3)]
Ballot Results
143 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 329-NFPA 70-2015 [ Section No. 210.12(A) ]
(A) Dwelling Units.
All 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets or devices installed in dwelling unit kitchens, family rooms, dining
rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, laundry areas, or similar rooms or
areas dwelling units shall be protected by any of the means described in 210.12(A)(1) through (6):
(1) A listed combination-type arc-fault circuit interrupter, installed to provide protection of the entire branch circuit
(2) A listed branch/feeder-type AFCI installed at the origin of the branch circuit in combination with a listed outlet branch-circuit- type arc-fault
circuit interrupter installed at the first outlet box on the branch circuit. The first outlet box in the branch circuit shall be marked to indicate that
it is the first outlet of the circuit.
(3) A listed supplemental arc protection circuit breaker installed at the origin of the branch circuit in combination with a listed outlet branchcircuit- type arc-fault circuit interrupter installed at the first outlet box on the branch circuit where all of the following conditions are met:
a.
The branch-circuit wiring shall be continuous from the branch-circuit overcurrent device to the outlet branch-circuit arc-fault circuit
interrupter.
b.
The maximum length of the branch-circuit wiring from the branch-circuit overcurrent device to the first outlet shall not exceed 15.2 m
(50 ft) for a 14 AWG conductor or 21.3 m (70 ft) for a 12 AWG conductor.
c.
The first outlet box in the branch circuit shall be marked to indicate that it is the first outlet of the circuit.
(4) A listed outlet branch-circuit- type arc-fault circuit interrupter installed at the first outlet on the branch circuit in combination with a listed
branch-circuit overcurrent protective device where all of the following conditions are met:
a.
The branch-circuit wiring shall be continuous from the branch-circuit overcurrent device to the outlet branch-circuit arc-fault circuit
interrupter.
b.
The maximum length of the branch-circuit wiring from the branch-circuit overcurrent device to the first outlet shall not exceed 15.2 m
(50 ft) for a 14 AWG conductor or 21.3 m (70 ft) for a 12 AWG conductor.
c.
The first outlet box in the branch circuit shall be marked to indicate that it is the first outlet of the circuit.
c.
The combination of the branch-circuit overcurrent device and outlet branch-circuit AFCI shall be identified as meeting the requirements
for a system combination–type AFCI and shall be listed as such.
(5) If RMC, IMC, EMT, Type MC, or steel-armored Type AC cables meeting the requirements of 250.118 , metal wireways, metal auxiliary
gutters, and metal outlet and junction boxes are installed for the portion of the branch circuit between the branch-circuit overcurrent device
and the first outlet, it shall be permitted to install a listed outlet branch-circuit- type AFCI at the first outlet to provide protection for the
remaining portion of the branch circuit.
(6) Where a listed metal or nonmetallic listed conduit or tubing or Type MC cable is encased in not less than 50 mm (2 in.) of concrete for the
portion of the branch circuit between the branch-circuit overcurrent device and the first outlet, it shall be permitted to install a listed outlet
branch-circuit- type AFCI at the first outlet to provide protection for the remaining portion of the branch circuit.
Exception: Where an individual branch circuit to a fire alarm system installed in accordance with 760.41(B) or 760.121(B) is installed in RMC,
IMC, EMT, or metal wireways or auxiliary gutters or steel-sheathed cable, Type AC or Type MC, meeting the requirements of 250.118, with
metal outlet and junction boxes, AFCI protection shall be permitted to be omitted.
Informational Note No. 1: For information on combination-type and branch/feeder-type arc-fault circuit interrupters, see UL 1699-2011,
Standard for Arc-Fault Circuit Interrupters. For information on outlet branch-circuit type arc-fault circuit interupters interrupters , see UL
Subject 1699A, Outline of Investigation for Outlet Branch Circuit Arc-Fault Circuit-Interrupters. For information on system combination
AFCIs, see UL Subject 1699C, Outline of Investigation for System Combination Arc-Fault Circuit Interrupters.
Informational Note No. 2: See 29.6.3(5) of NFPA 72-2013, National Fire Alarm and Signaling Code, for information related to secondary
power-supply requirements for smoke alarms installed in dwelling units.
Informational Note No. 3: See 760.41(B) and 760.121(B) for power-supply requirements for fire alarm systems.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 04:02:49 EST 2015
Committee Statement
144 of 1802
Committee
Statement:
The Panel has deleted 210.12(4)(d) which required listing of both the OBC ACI and the Branch Circuit Overcurrent Device as a “System
Combination.”
The previously cited UL research report titled "Effectiveness of Circuit Breakers in Mitigating Parallel Arcing Faults in the Home Run" provided
significant statistical assurance that the "home run" portion of the branch circuit is protected from parallel arcing faults. UL issued another
research report titled “Influence of Damage and Degradation on Breakdown Voltage of NM Cables” that had the following conclusion from
pages 58 – 59.
“In summary, the work described here shows that damage and degradation of a residential NM cable can lead to an arcing event, through
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voltage surges that break down the cable insulation and ignite arcing. However, the test results also indicate that the breakdown event is
unlikely to initiate arcing that is sustained long enough to ignite the cable insulation or surrounding materials. In this study, arcing for hammerdamaged cable exhibited arcing during less than 10% of the surge events, and exhibited arcing that lasted over a single half-cycle. The arcing
observed in this study is much shorter than what is required for an AFCI reacting to the event (eight half-cycles within 0.5 seconds, per UL
1699); however, the energy released in that short event is not expected to ignite the cable insulation."
In addition the following conclusions are extracted from the UL “Influence of Damaged and Degradation on Breakdown Voltage of NM Cables”
report dated 16 November 2012:
• “In this study, arcing for hammer-damaged cable exhibited arcing in less than 10% of the surge events and exhibited arcing that lasted over
a single half-cycle.”
The revision in PI 3104 corrects a spelling error in Informational Note No. 1
For PI 467, 1035, 2871 AFCIs have been required in the Code since 1999. The initial requirement covered only bedroom receptacle outlets,
giving installers an opportunity to gain experience with what was at that time a new product, and for manufacturers to address any unforeseen
problems with their designs. In the 2002 edition the requirement was expanded to include all bedroom outlets.
In the 2008 edition the requirement was expanded once again to include bedrooms, family rooms, living rooms, parlors, libraries, dens, sun
rooms, recreation rooms or similar rooms. Kitchens, laundry areas and devices located in the specified areas were added to the requirement
in the 2014 edition. By the time the 2017 edition is published, the industry will have over 15 years of experience with the manufacture and
installation of AFCIs and over 9 years of experience with combination type AFCIs. With the expanded requirement in the 2014 edition, there
are very few 120-volt single-phase 15- and 20-ampere branch circuits in a dwelling unit that do not require AFCI protection. This will
accomplish the original objective sought by the CPSC to reduce residential electrical wiring fires.
For PI 3596 The added wiring methods provide the same level of protection for the wiring as the other existing wiring systems already
included in the exception.
The use of the phrase “metal or nonmetallic” was unnecessary as “listed conduit or tubing” includes all of the available types of conduit and
tubing.
Response
Message:
Public Input No. 467-NFPA 70-2014 [Section No. 210.12(A)]
Public Input No. 1035-NFPA 70-2014 [Section No. 210.12(A)]
Public Input No. 2735-NFPA 70-2014 [Section No. 210.12(A)]
Public Input No. 2919-NFPA 70-2014 [Section No. 210.12(A)]
Public Input No. 2871-NFPA 70-2014 [Section No. 210.12(A)]
Public Input No. 3104-NFPA 70-2014 [Section No. 210.12(A)]
Public Input No. 3444-NFPA 70-2014 [Section No. 210.12(A)]
Public Input No. 3596-NFPA 70-2014 [Section No. 210.12(A)]
Public Input No. 2132-NFPA 70-2014 [Section No. 210.12(A)]
Ballot Results
145 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
6 Affirmative All
2 Affirmative with Comments
3 Negative with Comments
2 Abstention
Affirmative All
Boynton, Charles L.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
Thorwegen, Jr., Stephen J.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement, it will be difficult for the AHJ's to enforce
Wood, Thomas H.
I support the FR but would prefer to add additional areas of a dwelling gradually as the code has done over the last few cycles. The committee should also
add language exempting panelboard changes to existing dwellings. Dwellings with fuse panels or old style breaker panels that are having the panel
changed many times have equipment or appliances in them that will not work with AFCIs. The expansion to the whole dwelling being AFCI protected will
lead to nuisance tripping with no remedy except to tell the consumer to go buy a new garage door opener, washer, freezer, etc.
Negative with Comment
Buuck, Daniel
No data was provided for expanding the requirements of AFCI devices throughout dwelling units based on loss of life or reducing the number of fires. No
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proof was given to the panel that an AFCI device has prevented a fire in the past 15 years, either. Reports show that since AFCIs were introduced, they
have not made a positive impact on the number of fires. Builders continue to have substantial problems with AFCI devices which add unforeseen costs to
the home buyers. Expensive callbacks for repairs such as rewiring outlets for certain equipment, such as high-end vacuum cleaners or treadmills, are a
major inhibitor to the acceptance of these devices.
Domitrovich, Thomas A.
While NEMA finds the proposed changes in 210.12(A), (A)(5), (A)(6) and the exception acceptable, the change to (4) is not; therefore this FR should be
rejected. There is no technical reason to reduce the level of safety afforded by the listed solutions in the other five installation options by deleting the
requirement for a listed system combination AFCI in option 4. There is a need to verify that the circuit breaker and OBC AFCI can together provide arc fault
protection for the entire branch circuit. NEMA proposed the existing text in 210.12(A)(4) as part of ROC-2-44 in the 2014 revision cycle. Standard thermalmagnetic circuit breakers are not designed, tested or listed to detect and interrupt low level arcing faults. There is no NEMA circuit breaker manufacturer
that supports these claims being made about their products. In addition, the numbering of the sub-sections needs to be editorially corrected to follow the
2014 NEC. Finally, NEMA recommends that NFPA breakout the proposed deletion of 210.12(A)(4)(d) as a ballotable detail.
Manche, Alan
FR 329 is not acceptable due to the reduction in safety created by eliminating the Listing requirement in 210.12(A)(4). The listing requirement for
demonstrating arc fault protection of the entire branch circuit and the cords connected to it is currently found in all four permitted protection methods. In
order to remove a listing requirement from any of the four protection methods and not reduce or compromise safety, you must be convinced the protection
method will operate within the UL 1699 parameters without any verification. The acceptance of this PI ignores the Panel’s acceptance of Comment 2-52
that was introduced by UL during the development of the 2014 NEC. The Panel statement cites the UL research report titled, “Effectiveness of Circuit
Breakers in Mitigating Parallel Arcing Faults in the Home Run" as providing significant statistical assurance that the "home run" portion of the branch circuit
will be protected from parallel arcing faults by standard circuit breakers. This report was revised three months after it was issued, as documented in UL
Comment 2-52, and then followed up by two additional reports based on further research. The second report, “Evaluation of Run Length and Available
Current on Breaker Ability to Mitigate Parallel Arcing Faults - Part I: Effect of Panelboard Current for 50 Foot Run Lengths” refutes critical findings in the
first report, which includes the following: a) “Evaluation of the magnetic trip level of circuit breakers…show that breaker magnetic trip levels are not
sufficiently reliable and consistent to allow for a generalized assumption of an upper bound, as was proposed before”, and b) “…more controlled verification
of the magnetic trip level of a circuit breaker intended for mitigating parallel arcing faults may be needed”, and c) “…the magnetic trip level of circuit
breakers is not as well controlled as was previously found in a previous study.”, and d) “Circuit breakers with magnetic trip levels 200A or greater failed to
mitigate a large fraction of the arcing events in eight half-cycles.” All of the UL research reports on this topic must be considered, unfortunately the only one
cited in the PI and the Panel statement was the initial unrevised UL report. It is important for the public record to reflect accurate information for Panel
consideration and comment. The Panel statement also cites the UL research report titled “Influence of Damage and Degradation on Breakdown Voltage of
NM Cables”, however, the conclusion cited in the Committee statement focuses on only two important but very narrow damage events; voltage surges and
hammer damage. There are many other ways and documented occurrences about how NM cable can be damaged. Since the submission of UL Comment
2-52 test data has been presented to the UL 1699 Standards Technical Panel showing that standard thermal-magnetic circuit breakers cannot pass the UL
1699 performance requirements relating to branch circuit arc fault protection, leaving a protection gap for the home run of the branch circuit. No data has
been presented to justify removing the listing requirement in 210.12(A)(4). Standard thermal-magnetic circuit breakers are not designed and tested to
detect and interrupt low level arcing faults. No manufacturer claims that they can, which is why AFCI protection was identified as a need to provide such
protection.
Abstention
LaRocca, Robert L.
In the past UL has taken a leadership position in the development of the requirements in article 210.12(A). We conducted a number of research projects at
our own expense and the reports from those projects were made available to the members of Panel 2 to help each member develop their own conclusion
regarding the protection afforded by the system combination AFCI. The panel’s statement and the technical substantiation for many of the PIs that led to
this FR did not consider the findings of subsequent research projects. These findings highlighted the variability of the magnetic trip function of standard
thermal magnetic circuit breakers, and the potential reduction in protection of the homerun. This FR is only appropriate if the panel is aware of the reduction
in protection and considers the trade off in protection, for the sake of making alternative protection devices available in the marketplace, acceptable. At the
present time there is sufficient information available for each Panel member to use in developing their own position and understanding the associated risk.
UL further recognizes that by taking a position, it may have the inadvertent effect of swaying the votes of some panel members. We have no desire to do
this and are abstaining. Each Panel member is urged to review the information available and formulate their own vote.
McGovern, William J.
The Outline of Investigation for System Combination Arc-Fault Circuit Interrupters has not been issued; therefore, there is no basis for qualified electrical
testing laboratories’ listing those combinations. The question of removing 210.12(A)(4)(c) from the NEC or retaining it is moot. As it is a moot question, we
abstain.
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First Revision No. 350-NFPA 70-2015 [ Section No. 210.12(B) ]
(C) Branch Circuit Extensions or Modifications — Dwelling Units and Dormitory Units .
In any of the areas specified in 210.12(A) or 210.12(C) , where branch-circuit wiring is modified, replaced, or extended, the branch circuit shall
be protected by one of the following:
(1) A listed combination-type AFCI located at the origin of the branch circuit
(2) A listed outlet branch-circuit type- AFCI located at the first receptacle outlet of the existing branch circuit
Exception: AFCI protection shall not be required where the extension of the existing conductors is not more than 1.8 m (6 ft) and does not
include any additional outlets or devices.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 16:41:53 EST 2015
Committee Statement
Committee Statement: The Panel has restructured the subdivision to improve clarity and usability.
Dormitories have been added to the AFCI requirements for branch circuit extensions as the same arcing hazards exist.
Response Message:
Public Input No. 3009-NFPA 70-2014 [Section No. 210.12(B)]
Public Input No. 3010-NFPA 70-2014 [Section No. 210.12(B)]
Ballot Results
147 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
LaRocca, Robert L.
The modified text in 210.12(C) contains an error in its reference to 210.12(C) and should read as follows based on the other changes in this section: C)
Branch Circuit Extensions or Modifications — Dwelling Units and Dormitory Units. In any of the areas specified in 210.12(A) or 210.12(B), where branchcircuit wiring is modified, replaced, or extended, the branch circuit shall be protected by one of the following:
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First Revision No. 352-NFPA 70-2015 [ New Section after 210.12(C) ]
(D) Guest Rooms and Guest Suites.
All 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets and devices installed in guest rooms and guest suites of hotels
and motels shall be protected by a listed arc-fault circuit interrupter meeting the requirements of 210.12(A)(1) through (6) as appropriate.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 16:53:30 EST 2015
Committee Statement
Committee
Statement:
AFCI protection has been expanded to include guest rooms and guest suites that are not provided with permanent provisions for
cooking as similar arcing hazards exist in these occupancies as does in dwelling units.
Response
Message:
Public Input No. 1453-NFPA 70-2014 [New Section after 210.12(C)]
Ballot Results
148 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
10 Affirmative All
1 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Negative with Comment
Buuck, Daniel
The committee statement provides no technical information to support this change. In fact NFPA reports show that there are only 220 electrical fires in
hotels and motels annually, and it is unknown how many of those could be prevented by an AFCI protective device. In addition, wiring methods typically
used in hotels and motels are the same as those which allow fire alarms in dwellings to be exempted from AFCI protection. Therefore, the potential safety
increase is very likely not worth the increased cost.
Wood, Thomas H.
PI 1453 has failed to provide any substantiation or data there have been problems or hazards in guest rooms. The AFCI requirements for branch circuit
protection are based upon incidents that occurred in dwelling units. Hotel and motel rooms are wired and managed different than dwelling units and should
not be subject to the same requirement without data to support it.
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First Revision No. 351-NFPA 70-2015 [ Section No. 210.12(C) ]
(B) Dormitory Units.
All 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets and devices installed in dormitory unit bedrooms, living rooms,
hallways, closets, bathrooms , and similar rooms shall be protected by a listed arc-fault circuit interrupter meeting the requirements of
210.12(A) 210.12(A)(1) through (6) as appropriate.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 16:45:24 EST 2015
Committee Statement
Committee
Statement:
The Panel has restructured the subdivision to improve clarity and usability.
The phrase “and devices” has been added for consistency in the requirement already established for dwelling units.
Bathrooms has been added as the same potential for fires related to arcing exist with branch circuit supplying outlets in bathrooms as
does for other areas already covered.
Public Input No. 482-NFPA 70-2014 [Section No. 210.12(C)]
Public Input No. 1227-NFPA 70-2014 [Section No. 210.12(C)]
Public Input No. 1437-NFPA 70-2014 [Section No. 210.12(C)]
Public Input No. 3599-NFPA 70-2014 [Section No. 210.12(C)]
Public Input No. 4500-NFPA 70-2014 [Section No. 210.12(C)]
Public Input No. 4632-NFPA 70-2014 [Section No. 210.12(C)]
Ballot Results
149 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 353-NFPA 70-2015 [ Section No. 210.17 ]
210.17 Electric Vehicle Branch Circuit.
An outlet(s) installed for the purpose of charging electric vehicles shall be supplied by a separate branch circuit. This circuit shall have no other
outlets.
Informational Note: See 625.2 for the definition of Electric Vehicle .
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 16:59:48 EST 2015
Committee Statement
Committee
Statement:
The requirement for an individual branch circuit to support electric vehicle charging more appropriately belongs in Article 625. CMP 2
requests the NEC CC refer this to CMP 12 for information.
Response
Message:
Public Input No. 810-NFPA 70-2014 [Section No. 210.17]
Public Input No. 3307-NFPA 70-2014 [Section No. 210.17]
Public Input No. 3601-NFPA 70-2014 [Section No. 210.17]
Ballot Results
150 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 324-NFPA 70-2015 [ Section No. 210.52(A)(2) ]
(2) Wall Space.
As used in this section, a wall space shall include the following:
(1) Any space 600 mm (2 ft) or more in width (including space measured around corners) and unbroken along the floor line by doorways and
similar openings, fireplaces, and fixed cabinets that do not have countertops
(2) The space occupied by fixed panels in exterior in walls, excluding sliding panels
(3) The space afforded by fixed room dividers, such as freestanding bar-type counters or railings
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 05:07:44 EST 2015
Committee Statement
Committee
Statement:
Rooms other than kitchens with fixed cabinets with countertops that occupy a substantial length of wall space may have long spans of
perimeter space without receptacles. This change resolves that problem by separating wall spacing calculations for rooms with cabinets
from those installed in rooms that have countertops.
Removing the word “exterior” addresses the fact that it is not only exterior walls that may employ sliding panels with a fixed panel.
The suggested cabinet height of PIs 2650 and 1438 was not necessary due to the changes made in this first revision.
Response
Message:
Public Input No. 1438-NFPA 70-2014 [Section No. 210.52(A)(2)]
Public Input No. 2546-NFPA 70-2014 [Section No. 210.52(A)(2)]
Public Input No. 2650-NFPA 70-2014 [Section No. 210.52(A)(2)]
Public Input No. 2651-NFPA 70-2014 [Section No. 210.52(A)(2)]
Public Input No. 3497-NFPA 70-2014 [Section No. 210.52(A)(2)]
Ballot Results
151 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement excluding exterior wall space, adding fixed cabinets in the 2011 cycle allows a room with fixed bookcases on all walls
not to have receptacle outlets and it still will
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Hilbert, Mark R.
All the CMP 2 discussion that resulted in the term “fixed cabinets” being included in 210.52(A)(2)(1) the 2011 NEC were directly related the receptacle
outlets provided for the wall spaces above the countertops in kitchens, pantries, breakfast rooms and dining rooms. The CMP 2 members at the time did
not want the wall countertop space receptacle outlets required in 210.52(C)to serve the wall spaces specified in 210.52(A)(2). A way to accomplish the
original goal and correct the current situation would be to delete the reference to “fixed cabinets” in 210.52(A)(2)(1) and revise 210.52(A)(4) and (C)(4).
“210.52(A)(4) Countertop Receptacles. Receptacle outlets installed for countertop surfaces located in the areas specified in 210.52(C) shall not be
considered the receptacle outlets required by 210.52(A)(2).” In 210.52(C)(4)remove the reference to "refrigerators" in the first sentence. Deleting “fixed
cabinets” clarifies receptacle outlets installed over fixed cabinets are permitted to be considered as the receptacle outlets for wall spaces described in
210.52(A)(2). The recommended revision to 210.52(A)(4) and 210.52(C)(4) will clarify receptacle outlets located to serve the countertop wall spaces in
kitchens, panties, breakfast rooms and dining rooms are not intended to serve the wall spaces described in 210.52(A)(2).
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First Revision No. 356-NFPA 70-2015 [ Section No. 210.52(C)(3) ]
(3) Peninsular Countertop Spaces.
At least one receptacle outlet shall be installed at each peninsular countertop long dimension space with a long dimension of 600 mm (24 in.) or
greater and a short dimension of 300 mm (12 in.) or greater. A peninsular countertop is measured from the connecting edge connected
perpendicular wall .
A receptacle in a wall countertop space shall be permitted to serve as the receptacle for a peninsular countertop space where the spaces are
contiguous and the receptacle is located within 1.8 m (6 ft) of the outside edge of the peninsular countertop.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 17:38:43 EST 2015
Committee Statement
Committee
Statement:
The panel has added text to provide clarity for how to determine the long dimension of the peninsula. An exception has been added to
address the specific application where a wall bounds a portion of the peninsular. The 6ft measurement is to correlate with the receptacle
wall space requirements.
Response
Message:
Public Input No. 3605-NFPA 70-2014 [Section No. 210.52(C)(3)]
Ballot Results
153 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Negative with Comment
McGovern, William J.
The revised language will eliminate the required receptacle on kitchen peninsulas less than 4' in length causing persons wanting to use portable
appliances on the peninsula to resort to the use of extension cords which is in conflict with the sole purpose for the receptacle requirements located in
210.52. While the proposed language of the measurement being taken from the connected perpendicular wall establishes where the measurement is to be
taken from, it makes it impossible to plug an appliance into the countertop wall receptacle and place it on the peninsula. Kitchen counters are typically 24"
deep and cords on small appliances can be as short a 18" which would prohibit the small appliance to being set on the peninsula without the use of an
extension cord.
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First Revision No. 308-NFPA 70-2015 [ Section No. 210.52(C)(5) ]
(5) Receptacle Outlet Location.
Receptacle outlets shall be located on or above, but not more than 500 mm (20 in.) above, the countertop. Receptacle outlet assemblies listed
for the application use in countertops shall be permitted to be installed in countertops. Receptacle outlets rendered not readily accessible by
appliances fastened in place, appliance garages, sinks, or rangetops as covered in 210.52(C)(1), Exception, or appliances occupying dedicated
space shall not be considered as these required outlets.
Informational Note: See 406.5(E) for requirements for installation of receptacles in countertops and 406.5(F) for requirements for
installation in work surfaces .
Exception to (5): To comply with the conditions specified in (1) or (2), receptacle outlets shall be permitted to be mounted not more than 300
mm (12 in.) below the countertop. Receptacles mounted below a countertop in accordance with this exception shall not be located where the
countertop extends more than 150 mm (6 in.) beyond its support base.
(1) Construction for the physically impaired
(2) On island and peninsular countertops where the countertop is flat across its entire surface (no backsplashes, dividers, etc.) and there are
no means to mount a receptacle within 500 mm (20 in.) above the countertop, such as an overhead cabinet
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 11:48:41 EST 2015
Committee Statement
Committee Statement: The new text was added to more precisely identify the acceptable listing requirements, as this will improve enforceability.
Response Message:
Public Input No. 1759-NFPA 70-2014 [Section No. 210.52(C)(5)]
Ballot Results
154 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 309-NFPA 70-2015 [ Section No. 210.52(D) ]
(D) Bathrooms.
In dwelling units, At at least one receptacle outlet shall be installed in bathrooms within 900 mm (3 ft) of the outside edge of each basin. The
receptacle outlet shall be located on a wall or partition that is adjacent to the basin or basin countertop, located on the countertop, or installed on
the side or face of the basin cabinet. In no case shall the receptacle be located more than 300 mm (12 in.) below the top of the basin or basin
countertop . Receptacle outlet assemblies listed for the application shall be permitted to be installed in the countertop.
Informational Note: See 406.5(E) for requirements for installation of receptacles in countertops.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 11:55:48 EST 2015
Committee Statement
Committee
Statement:
The term “dwelling units” is redundant since 210.52 applies to dwelling units in general. Basins may be of different height from the
countertop. The location of the receptacle should be based on the countertop regardless of what type of basin is installed as basins may
change over the life of the installation.
Response
Message:
Public Input No. 114-NFPA 70-2014 [Section No. 210.52(D)]
Public Input No. 4633-NFPA 70-2014 [Section No. 210.52(D)]
Ballot Results
155 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 310-NFPA 70-2015 [ Section No. 210.52(G) [Excluding any Sub-Sections] ]
For a one- and two- family dwellings , at least one receptacle outlet shall be installed in the areas specified in 210.52(G)(1) through (3). These
receptacles shall be in addition to receptacles required for specific equipment.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 11:59:41 EST 2015
Committee Statement
Committee
Statement:
The added text expanded the requirement for a receptacle outlet in garages, accessory buildings and basements to include two family
dwellings to extend the same level of safety.
Response
Message:
Public Input No. 96-NFPA 70-2014 [Section No. 210.52(G) [Excluding any Sub-Sections]]
Ballot Results
156 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Hilbert, Mark R.
I agree with revising the section for clarification but proposed text limits the requirements to basements, garages and accessory buildings associated with
one and two family dwellings. The opening paragraph of 210.52 identifies the requirements are for dwelling unit receptacle outlets for 125 volt, 15 and 20
ampere receptacles. Revising 210.52(G) as follows would allow the requirements to apply at all dwelling unit locations: “At least one receptacle outlet shall
be installed as specified in 210.52(G)(1) through (3). These receptacles shall be in addition to receptacles required for specific equipment.”
Negative with Comment
Coluccio, Frank
Although I agree with the submitter there wasn't sufficent substation for the change
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First Revision No. 317-NFPA 70-2015 [ Section No. 210.52(G)(1) ]
(1) Garages.
In each attached garage and in each detached garage with electric power. The , the branch circuit supplying this receptacle(s) shall not supply
outlets outside of the garage. At least one receptacle outlet shall be installed for each car space in each vehicle bay and not more than 1.7 m
(5 1⁄2 ft) above the floor .
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 11:28:20 EST 2015
Committee Statement
Committee
Statement:
The proposed new text clarifies that the receptacles required for each vehicle bay be distributed physically so that each is adjacent to a
vehicle bay as to avoid confusion to the intent of the requirement, such as installing a duplex receptacle for a two-car garage. The height is
defined so the receptacle can be accessed for use. The word “car” was changed to “vehicle” to generalize the term.
With regard to PIs 2905, 4303, 2722, and 365 which sought to permit outside outlets (receptacle and/or lighting) on the branch circuit
feeding the required receptacle outlets was not accepted by this panel due to lack of substantiation.
With regard to PI 4691, the panel has addressed this submitters concerns by requiring the receptacle outlets to be installed in each vehicle
bay and limiting the installation to no more than 5 ½ ft above the floor.
Response
Message:
Public Input No. 365-NFPA 70-2014 [Section No. 210.52(G)(1)]
Public Input No. 366-NFPA 70-2014 [Section No. 210.52(G)(1)]
Public Input No. 705-NFPA 70-2014 [Section No. 210.52(G)(1)]
Public Input No. 839-NFPA 70-2014 [Section No. 210.52(G)(1)]
Public Input No. 1431-NFPA 70-2014 [Section No. 210.52(G)(1)]
Public Input No. 1572-NFPA 70-2014 [Section No. 210.52(G)(1)]
Public Input No. 2655-NFPA 70-2014 [Section No. 210.52(G)(1)]
Public Input No. 2905-NFPA 70-2014 [Section No. 210.52(G)(1)]
Public Input No. 3608-NFPA 70-2014 [Section No. 210.52(G)(1)]
Public Input No. 4303-NFPA 70-2014 [Section No. 210.52(G)(1)]
Public Input No. 4691-NFPA 70-2014 [Section No. 210.52(G)(1)]
Ballot Results
157 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
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Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Wood, Thomas H.
I support the FR but I don’t agree adequate substantiation has been provided to leave in the requirement that the branch circuit not supply outlets outside
the garage. FR 330 will now require this circuit to be a 20 amp circuit. Power tools that may draw 16 amps generally are used sporadically and for very
short durations. Vacuum cleaners that draw 12 amps generally are used for longer periods of time and are plugged into the 15 amp general use lighting
circuit. The code does not limit these 15 amp circuits to any one specific area. At a minimum, the circuit should be allowed to supply any outdoor
receptacles required by the code (which are GFCI protected)
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First Revision No. 323-NFPA 70-2015 [ Section No. 210.64 ]
210.64 Electrical Service Areas.
At least one 125-volt, single-phase, 15- or 20-ampere-rated receptacle outlet shall be installed within 15 in an accessible location within 7.5 m
(50 25 ft) of of the indoor electrical service equipment. The required receptacle outlet shall be located within the same room or area as the
service equipment.
Exception No. 1: The receptacle outlet shall not be required to be installed in one- and two-family dwellings.
Exception No. 2: Where the service voltage is greater than 120 volts to ground, a receptacle outlet shall not be required for services dedicated
to equipment covered in Articles 675 and 682 .
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 04:22:50 EST 2015
Committee Statement
Committee
Statement:
50’ was reduced to 25’ to address a common length cord found on service trucks (PI 1439, 483, 4038 and 4750). The receptacle outlet is
now required to be accessible. (PI 437)
The work identified in proposal 2-191 for NEC 2014 that was accepted during the NEC 2014 cycle which would require 120V receptacle
outlets included:
• Servicing electrical equipment
• Connecting portable electrical data acquisition equipment for qualitative analysis of the electrical system
• Testing electrical equipment
The hazards identified in proposal 2-191 for NEC 2014 included the use of drop cords run through door-ways throughout the building which
could be plugged into non-GFCI protected receptacles.
Electrically Driven or Controlled Irrigation Machines (Article 675) and Natural and Artificially Made Bodies of Water (Article 682) service
installations are more than likely not near a structure that has 120V receptacles that may be utilized for said work above and so more than
likely will not present the hazards associated with plugging extension cords into non GFCI protected 120V receptacles.
Exception 2 was added for those service locations dedicated to electrically driven or controlled irrigation machines and natural and
artificially made bodies of water where 120 Volts to ground is not present. (PIs 840, 1309, 3344, 653, 3611 and 443)
The following are additional responses to the PIs that were considered and resolved as part of the development of this FR:
PI 840: Agricultural buildings were not exempted from this requirement even though GFCI protected circuits are required as part of
547.5(G)(1) through (4), one cannot guarantee that connected extension cords and the like will provide GFCI protection.
PI 1039: The panel agreed that the 25' limitation is adequate.
PI 1439 and 3344: The panel did not agree hat the receptacle required should only be required for indoor services. A requirement that the
receptacle be included int he service room did not address similar needs for outside services.
PI 3344: GFCI protection is already required by Section 210.8(B).
Response
Message:
Public Input No. 3344-NFPA 70-2014 [Section No. 210.64]
Public Input No. 3611-NFPA 70-2014 [Section No. 210.64]
Public Input No. 443-NFPA 70-2014 [Section No. 210.64]
Public Input No. 483-NFPA 70-2014 [Section No. 210.64]
Public Input No. 653-NFPA 70-2014 [Section No. 210.64]
Public Input No. 1309-NFPA 70-2014 [Section No. 210.64]
Public Input No. 4750-NFPA 70-2014 [Section No. 210.64]
Public Input No. 4038-NFPA 70-2014 [Section No. 210.64]
Public Input No. 437-NFPA 70-2014 [Section No. 210.64]
Public Input No. 1439-NFPA 70-2014 [Section No. 210.64]
Public Input No. 840-NFPA 70-2014 [Section No. 210.64]
Ballot Results
159 of 1802
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This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Hilbert, Mark R.
I agree with the changes made but the panel statement shown regarding PI 1439 seems to be in conflict with the action taken. This statement was
obviously intended for a resolve action so it was unintentionally overlooked during the first revision process when it should have been removed.
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First Revision No. 354-NFPA 70-2015 [ Section No. 210.70(A)(1) ]
(1) Habitable Rooms.
At least one wall switch–controlled lighting outlet shall be installed in every habitable room, kitchen, and bathroom.
Exception No. 1: In other than kitchens and bathrooms, one or more receptacles controlled by a wall switch shall be permitted in lieu of lighting
outlets.
Exception No. 2: Lighting outlets shall be permitted to be controlled by occupancy sensors that are (1) in addition to wall switches or (2) located
at a customary wall switch location and equipped with a manual override that will allow the sensor to function as a wall switch.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 17:16:10 EST 2015
Committee Statement
Committee Statement: Kitchens were added to clarify that kitchens are included in the requirement.
Response Message:
Public Input No. 2907-NFPA 70-2014 [Section No. 210.70(A)(1)]
Ballot Results
161 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 355-NFPA 70-2015 [ Section No. 210.70(A)(2) ]
(2) Additional Locations.
Additional lighting outlets shall be installed in accordance with (A)(2)(a), (A)(2)(b), and (A)(2)(c), and (A)(2)(d) .
(a) At least one wall switch–controlled lighting outlet shall be installed in hallways, stairways, attached garages, and detached garages with
electric power.
(b) For dwelling units, attached garages, and detached garages with electric power, at least one wall switch–controlled lighting outlet shall be
installed to provide illumination on the exterior side of outdoor entrances or exits with grade- level access. A vehicle door in a garage shall
not be considered as an outdoor entrance or exit.
(c) Where one or more lighting outlet(s) are installed for interior stairways, there shall be a wall switch at each floor level, and landing level that
includes an entryway, to control the lighting outlet(s) where the stairway between floor levels has six risers or more.
Exception to (A)(2)(a), (A)(2)(b), and (A)(2)(c): In hallways, in stairways, and at outdoor entrances, remote, central, or automatic control of
lighting shall be permitted.
(d) Outlets supplying lighting for stairs meeting the requirements of 210.70(A)(2)(c) shall not be controlled by use of a dimmer switch.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 17:20:36 EST 2015
Committee Statement
Committee
Statement:
Item (d) was added to ensure a dimmer is not used as the dimmer can be turned all the way down and not provide safe levels of
illumination when operated.
Response Message:
Public Input No. 2928-NFPA 70-2014 [New Section after 210.70(A)(2)]
Public Input No. 3726-NFPA 70-2014 [Section No. 210.70(A)(2)]
Ballot Results
162 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement, there may be lighting installed just for the staircase and there may also be other task lighting to illuminate wall
paintings and small displays on staircase platforms
Wood, Thomas H.
I support the FR but additional language should be added that secondary sources of light for stairwell be allowed to be on dimmers. As the language is
written now no lighting in stairwells would be allowed to be on a dimmer. The committee statement refers to safe levels of illumination but article 210 does
not reference required illumination levels for dwellings.
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First Revision No. 7517-NFPA 70-2015 [ New Section after 210.70(B) ]
210.71 Meeting Rooms.
(A) General.
Each meeting room in other than dwelling units shall have nonlocking-type, 125-volt, 15- and 20-ampere receptacles installed in accordance
with 210.71(B) through (E). Where a room or space is provided with movable partition(s), the room size shall be determined with the partition
in the position that results in the smallest size meeting room.
Informational Note No. 1: For the purposes of this section, meeting rooms are typically designed or intended for the gathering of seated
occupants for such purposes as conferences, deliberations, or similar purposes, where portable electronic equipment such as
computers, projectors, or similar equipment is likely to be used.
Informational Note No. 2: The types of receptacles covered by this requirement are identified as 5-15 and 5-20 in ANSI/NEMA WD
6-2002, National Electrical Manufacturers Association Standard for Dimensions of Attachment Plugs and Receptacles .
(B) Receptacle Outlets in Fixed Walls.
2
2
In meeting rooms having a floor area of 70 m
(760 ft ) or less, receptacle outlets shall be installed in accordance with 210.52(A) (A)(1)
through (A)(4). These receptacles outlets shall be in addition to any receptacle outlets that are located within cabinets or cupboards, or located
more than 1.7 m (5 1 ⁄2 ft) above the floor.
(C) Floor Receptacle Outlets.
2
2
2
2
A meeting room that is at least 3.6 m (12ft) wide and that has a flood area of at least 21 m
(225 ft ) and not more than 70 m
(760 ft )
shall have at least one duplex- or quadruplex-type receptacle located in the floor at a distance not less than 1.8 m (6 ft) from any fixed wall.
(D) Receptacle Outlets at Moveable Room Partitions.
At least one floor receptacle outlet shall be installed for each 3.7 linear m (12 linear ft) or major fraction thereof of movable wall measured
horizontally along the floor line. These receptacle outlets shall be located within 450 mm (18 in.) of the partition.
(E) Receptacle Outlet Placement.
In applying the provisions of this section, the total number of receptacle outlets shall not be less than as determined in (B), (C), and (D). The
receptacle outlets required by this section shall be permitted to be located in accordance with municipal, state, federal, or other codes and
regulations, or as determined by the designer/building owner.
Informational Note No. 1: See Section 314.27(B) for floor boxes used for receptacles located in the floor.
Informational Note No. 2: See Article 518 for assembly occupancies designed for 100 or more persons.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Feb 04 12:25:13 EST 2015
Committee Statement
Committee
Statement:
The addition of this new section addresses the inherent Life Safety concerns relating to inadequate access to electrical power in meeting
rooms. Without this change a design that complies with the minimum requirements could result in a meeting room with no receptacle outlets.
Since it would be virtually impossible to not violate portions of the NEC® concerned with the use of extension cords with the current minimum
requirements, it follows that there is a need for a minimum number of receptacle outlets in these rooms.
Receptacle outlets are needed to provide power along wall lines for displays, coffee pots, heating of catered food, and other
electrical/electronic equipment. This need will be met by receptacle outlets installed in fixed walls and floor receptacles installed near
moveable partitions. In addition, a floor receptacle outlet will be located away from walls to minimize the need for extension cords and multioutlet devices when employing projectors and the like.
Response
Message:
Public Input No. 2872-NFPA 70-2014 [New Section after 210.70]
Ballot Results
164 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
9 Affirmative All
1 Affirmative with Comments
3 Negative with Comments
0 Abstention
Affirmative All
Domitrovich, Thomas A.
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165 of 1802
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Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Negative with Comment
Boynton, Charles L.
There are too many varied arrangements and situations in conference and meeting rooms to dictate how and where to place receptacles. This is clearly a
design function when planning these types of rooms. Renovating an existing facility would also be very difficult as this would require chipping concrete
floors to install receptacles, which could also present a tripping hazard.
Buuck, Daniel
Item (E) overrides all "mandatory" location requirements in (B), (C) and (D). For example, the provision in (C) to locate a receptacle at least 1.8 m from a
fixed wall, or in (D) to locate receptacles within 450 mm of a partition, can be ignored by the designer. In fact, Item (E) allows the designer to locate all wall
and floor receptacles in one big group in one corner of the meeting room if they choose--or to locate all floor receptacles in the middle of the room. If this
section is going to allow designers to do what they want to do as far as location is concerned, then the mandatory code language referring to location
should be removed in (B) through (D), and the section should focus on the number of receptacles required.
Wood, Thomas H.
PI 2872 has not provided any substantiation or data that there have been problems or hazards with insufficient receptacles in meeting rooms. The
committee statement indicates “the new section addresses the inherent life safety concerns relating to inadequate access to electrical power in meeting
rooms”. The committee statement lacks support in that the issue would still exist, as the proposed section is written and if added. This is a design issue that
Architects and owners are currently addressing to meet consumer needs.
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First Revision No. 315-NFPA 70-2015 [ Section No. 210.70(C) ]
(C) Other Than Dwelling Units All Occupancies .
For attics and underfloor spaces containing equipment requiring servicing, such as heating, air-conditioning, and refrigeration equipment spaces,
utility rooms, and basements , at least one lighting outlet containing a switch or controlled by a wall switch shall be installed in such
spaces . installed where these spaces are used for storage or contain equipment requiring servicing. At least one point of control shall be at the
usual point of entry to these spaces. The lighting outlet shall be provided at or near the equipment requiring servicing.
A lighting outlet installed in a crawl space shall be protected from physical damage or be provided with GFCI protection.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 14:59:36 EST 2015
Committee Statement
Committee
Statement:
The panel has revised the requirement and inserted language identical to 210.70(A)(3), which could contain the very same electrical
equipment.
Response Message:
Public Input No. 150-NFPA 70-2014 [Section No. 210.70(C)]
Public Input No. 3099-NFPA 70-2014 [Section No. 210.70]
Ballot Results
166 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
10 Affirmative All
3 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Hilbert, Mark R.
I agree with the revisions clarifying where the existing requirements apply so I am voting affirmative at the first draft stage. Although I agree with the intent
of protecting a luminaire or fixture from physical damage, I disagree with locating the requirement in Article 210. Section 210.70 is about where “lighting
outlets” and their controlling devices are located. Physical damage requirements are for the luminaire not the lighting outlet so the requirement is
appropriately located in Article 410. I also disagree with allowing GFCI protection as an alternative to protection from physical damage. GFCI protection
does not prevent physical damage which is the subject of the requirement nor does it eliminate the hazard of a worker coming in direct contact with and
breaking a lamp.
King, Donald M.
The text as proposed refers to physical protection of the lighting outlet where it should refer to physical protection of the luminaire. Though the added
safety measures included in this First Revision will provide added protection to persons from the increased risk of electrocution in these areas, further
consideration should be given to requiring GFCI protection for all lighting outlets installed in crawl spaces regardless of the level of protection from physical
damage that is provided for the luminaire.
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First Revision No. 338-NFPA 70-2015 [ Section No. 215.1 ]
215.1 Scope.
This article covers the installation requirements, overcurrent protection requirements, minimum size, and ampacity of conductors for feeders
supplying branch-circuit loads .
Exception: Feeders for electrolytic cells as covered in 668.3(C)(1) and (C)(4).
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 10:36:36 EST 2015
Committee Statement
Committee
Statement:
The phrase “supplying branch circuits” in unnecessary and provides no additional clarity to the section. Feeder conductors also
supply other feeder conductors.
Response Message:
Public Input No. 696-NFPA 70-2014 [Section No. 215.1]
Ballot Results
167 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 337-NFPA 70-2015 [ Section No. 215.2(A)(1) ]
(1) General.
Feeder conductors shall have an ampacity not less than required to supply the load as calculated in Parts III, IV, and V of Article 220. Conductors
shall be sized to carry not less than the larger of 215.2(A)(1)(a) or (b).
(a) Where a feeder supplies continuous loads or any combination of continuous and noncontinuous loads, the minimum feeder conductor size
shall have an allowable ampacity not less than the noncontinuous load plus 125 percent of the continuous load.
Exception No. 1: If the assembly, including the overcurrent devices protecting the feeder(s), is listed for operation at 100 percent of its
rating, the allowable ampacity of the feeder conductors shall be permitted to be not less than the sum of the continuous load plus the
noncontinuous load.
Exception No. 2: Where a portion of a feeder is connected at both its supply and load ends to separately installed pressure connections
as covered in 110.14(C)(2) , it shall be permitted to have an allowable ampacity not less than the sum of the continuous load plus the
noncontinuous load. No portion of a feeder installed under the provisions of this exception shall extend into an enclosure containing either
the feeder supply or the feeder load terminations, as covered in 110.14(C)(1) .
Exception No. 3: Grounded conductors that are not connected to an overcurrent device shall be permitted to be sized at 100 percent of
the continuous and noncontinuous load.
(b) The minimum feeder conductor size shall have an allowable ampacity not less than the maximum load to be served after the application of
any adjustment or correction factors.
Informational Note No. 1: See Examples D1 through D11 in Informative Annex D .
Informational Note No. 2: Conductors for feeders, as defined in Article 100 , sized to prevent a voltage drop exceeding 3 percent at the
farthest outlet of power, heating, and lighting loads, or combinations of such loads, and where the maximum total voltage drop on both
feeders and branch circuits to the farthest outlet does not exceed 5 percent, will provide reasonable efficiency of operation.
Informational Note No. 3: See 210.19(A) , Informational Note No. 4, for voltage drop for branch circuits.
Exception No. 1: If the assembly, including the overcurrent devices protecting the feeder(s), is listed for operation at 100 percent of its rating,
the allowable ampacity of the feeder conductors shall be permitted to be not less than the sum of the continuous load plus the noncontinuous
load.
Exception No. 2: Grounded conductors that are not connected to an overcurrent device shall be permitted to be sized at 100 percent of the
continuous and noncontinuous load.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 08:49:10 EST 2015
Committee Statement
Committee
Statement:
Exception (1) and (2) is moved from the current location to below (a) which makes it clear that the exceptions refer to 215.2(A)(1)(a).
A new Exception 2 is also added to this first revision that allows for intermediate feeder segments that are only limited by the ampacity
parameters that apply over the length of the run and that do not involve usual termination limitations. This type of provision is technically
appropriate and had been done in the past, but has been inadvertently prohibited due to the recent restructuring of the usual requirements.
The exception also includes language excluding feeder segments that use this allowance from entering the source and destination
enclosures. In this way the exception precludes the installation of the conductor length calculated under normal procedures that would
otherwise evade the equipment termination requirements of the rule under the exception.
Response
Message:
Public Input No. 4680-NFPA 70-2014 [Section No. 215.2(A)(1)]
Public Input No. 3612-NFPA 70-2014 [Section No. 215.2(A)(1)]
Ballot Results
168 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
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Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 336-NFPA 70-2015 [ Section No. 215.2(A)(2) ]
(2) Grounded Conductor.
The size of the feeder circuit grounded conductor shall not be smaller than that required by 250.122 , except that 250.122(F) shall not apply
where grounded conductors are run in parallel.
Additional minimum sizes shall be as specified in 215.2(A)(2) 215.2(A)(3) and (A)(3) under the conditions stipulated.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 08:47:46 EST 2015
Committee Statement
Committee Statement: The circular reference to (A)(2) has been removed and the term “conditions” has been changed to read as “condition.”
Response Message:
Public Input No. 1578-NFPA 70-2014 [Section No. 215.2(A)(2)]
Public Input No. 3481-NFPA 70-2014 [Section No. 215.2(A)(2)]
Ballot Results
170 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 335-NFPA 70-2015 [ Section No. 215.3 ]
215.3 Overcurrent Protection.
Feeders shall be protected against overcurrent in accordance with the provisions of Part I of Article 240. Where a feeder supplies continuous
loads or any combination of continuous and noncontinuous loads, the rating of the overcurrent device shall not be less than the noncontinuous
load plus 125 percent of the continuous load.
Exception No. 1: Where the assembly, including the overcurrent devices protecting the feeder(s), is listed for operation at 100 percent of its
rating, the ampere rating of the overcurrent device shall be permitted to be not less than the sum of the continuous load plus the noncontinuous
load.
Exception No. 2: Overcurrent protection for feeders between 600 to and 1000 volts shall comply with Parts I through VII VIII of Article 240 .
Feeders over 1000 volts, nominal, shall comply with Part IX of Article 240 .
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 08:45:10 EST 2015
Committee Statement
Committee Statement: The revision now aligns the protection requirements with Article 240 which includes Part VIII as requested by the PI.
Response Message:
Public Input No. 3106-NFPA 70-2014 [Section No. 215.3]
Ballot Results
171 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 334-NFPA 70-2015 [ Section No. 215.9 ]
215.9 Ground-Fault Circuit-Interrupter Protection for Personnel.
Feeders supplying 15- and 20-ampere receptacle branch circuits shall be permitted to be protected by a ground-fault circuit interrupter installed
in a readily accessible location in lieu of the provisions for such interrupters as specified in 210.8 and 590.6(A) .
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 08:40:27 EST 2015
Committee Statement
Committee
Statement:
Feeders supplying 15- and 20-ampere receptacles that are required to meet the requirements of 210.8 and 590.6(A) should meet the
same requirements of accessibility as the receptacles they supply.
Response
Message:
Public Input No. 1212-NFPA 70-2014 [Section No. 215.9]
Ballot Results
172 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 332-NFPA 70-2015 [ Section No. 215.12(A) ]
(A) Grounded Conductor.
The grounded conductor of a feeder, if insulated, shall be identified in accordance with 200.6.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 06:59:09 EST 2015
Committee Statement
Committee
Statement:
Section 200.6 is specific to identifying grounded conductors that are insulated. A grounded conductor may, by code, be uninsulated.
This revision provides clarity.
Response
Message:
Public Input No. 1217-NFPA 70-2014 [Section No. 215.12(A)]
Ballot Results
173 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 342-NFPA 70-2015 [ Section No. 220.1 ]
220.1 Scope.
This article provides requirements for calculating branch-circuit, feeder, and service loads. Part I provides for general requirements for calculation
methods. Part II provides calculation methods for branch-circuit loads. Parts III and IV provide calculation methods for feeders feeder and
services service loads . Part V provides calculation methods for farms farm loads .
Informational Note No. 1: See examples in Informative Annex D .
Informational Note No. 2: See Figure 220.1 for information on the organization of Article 220 .
Figure 220.1 Branch-Circuit, Feeder, and Service Load Calculation Methods.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 12:07:09 EST 2015
Committee Statement
Committee
Statement:
The proposed revisions enhance the clarity of the scope. Only the underline and strike-through text is being revised. The balance of
the existing text is only shown for clarity.
Response
Message:
Public Input No. 695-NFPA 70-2014 [Section No. 220.1]
Ballot Results
174 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
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175 of 1802
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LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 340-NFPA 70-2015 [ Section No. 220.3 ]
220.3 Application of Other Articles.
In other articles applying to the calculation of loads in specialized applications, there are requirements provided in Table 220.3 that are in addition
to, or modifications of, those within this article.
Table 220.3 Additional Load Calculation References
Calculation
Article
Section (or
Part)
Air-conditioning and refrigerating equipment, branch-circuit conductor sizing
440
Part IV
Cranes and hoists, rating and size of conductors
610
610.14
Electric vehicle charging system branch-circuit and feeder calculations
625
625.41
Electric welders, ampacity calculations
630
630.11, 630.31
Electrically driven or controlled irrigation machines
675
675.7(A), 675.22(A)
Electrified truck parking space
626
Electrolytic cell lines
668
Electroplating, branch-circuit conductor sizing
669
669.5
Elevator feeder demand factors
620
620.14
Fire pumps, voltage drop (mandatory calculation)
695
695.7
Fixed electric heating equipment for pipelines and vessels, branch-circuit sizing
427
427.4
Fixed electric space-heating equipment, branch-circuit sizing
424
424.3
Fixed outdoor electric deicing and snow-melting equipment, branch-circuit sizing
426
426.4
Industrial machinery, supply conductor sizing
670
670.4(A)
Marinas and boatyards, feeder and service load calculations
555
555.12
Mobile homes, manufactured homes, and mobile home parks, total load for determining power supply
550
550.18(B)
Mobile homes, manufactured homes, and mobile home parks, allowable demand factors for park electrical wiring
systems
550
550.31
Motion picture and television studios and similar locations — sizing of feeder conductors for television studio sets
530
530.19
Motors, feeder demand factor
430
430.26
Motors, multimotor and combination-load equipment
430
430.25
Motors, several motors or a motor(s) and other load(s)
430
430.24
Over 600-volt branch-circuit calculations
210
210.19(B)
Over 600-volt feeder calculations
215
215.2(B)
Phase converters, conductors
455
455.6
Recreational vehicle parks, basis of calculations
551
551.73(A)
Sensitive electrical equipment, voltage drop (mandatory calculation)
647
647.4(D)
Solar photovoltaic systems, circuit sizing and current
690
690.8
Storage-type water heaters
422
422.11(E)
Theaters, stage switchboard feeders
520
520.27
668.3(C)
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 10:56:52 EST 2015
Committee Statement
176 of 1802
Committee Statement: This table provides further guidance for load calculations and is not intended to point to nameplates.
The following references have been removed from the Table because they are not applicable to calculations in Article 220:
1) Delete the line referencing 647.
2) Delete the line referencing 690.
3) Delete the line referencing 695.
Response Message:
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Public Input No. 3316-NFPA 70-2014 [Section No. 220.3]
Ballot Results
177 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Hilbert, Mark R.
I support the Panel actions and statements but it appears that not all the First Draft Meeting actions were included. Additionally, the reference 422.11(E)
was to be revised to 422.13 and the line referencing 520 was to be deleted. There is merit in the recommendation in Public Input No. 3316 for a task group
to review and coordinate Tables 210.3 (former 210.2) and 220.3 and to prepare comments for the necessary changes.
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First Revision No. 326-NFPA 70-2015 [ Section No. 220.12 ]
220.12 Lighting Load for Specified Occupancies.
A unit load of not less than that specified in Table 220.12 for occupancies specified therein shall constitute the minimum lighting load. The floor
area for each floor shall be calculated from the outside dimensions of the building, dwelling unit, or other area involved. For dwelling units, the
calculated floor area shall not include open porches, garages, or unused or unfinished spaces not adaptable for future use.
Informational Note: The unit values herein are based on minimum load conditions and 100 percent power factor and may not provide
sufficient capacity for the installation contemplated.
Exception: Where the building is designed and constructed to comply with an energy code adopted by the local authority, the lighting load shall
be permitted to be calculated at the values specified in the energy code where the following conditions are met:
(1) A power monitoring system is installed that will provide continuous information regarding the total general lighting load of the building.
(2) The power monitoring system will be set with alarm values to alert the building owner or manager if the lighting load exceeds the values
set by the energy code.
(3) The demand factors specified in 220.42 are not applied to the general lighting load.
Table 220.12 General Lighting Loads by Occupancy
Unit Load
Type of Occupancy
Volt-Amperes/ Volt-Amperes/
Square Meter
Armories and auditoriums
11
b
Square Foot
1
b
Banks
39
Barber shops and beauty parlors
33
3
Churches
11
1
Clubs
22
2
Court rooms
22
2
a
Dwelling units
33
3
Garages — commercial (storage)
6
1⁄2
22
2
22
2
Hospitals
Hotels and motels, including apartment houses without provision for cooking by tenants
a
1
3 ⁄2
Industrial commercial (loft) buildings
22
2
Lodge rooms
17
11 ⁄ 2
Office buildings
39
b
31 ⁄ 2
Restaurants
22
2
Schools
33
3
Stores
33
3
Warehouses (storage)
3
1⁄4
b
In any of the preceding occupancies except one-family dwellings and individual dwelling units of two-family and
multifamily dwellings:
Assembly halls and auditoriums
11
1
Halls, corridors, closets, stairways
6
1⁄2
Storage spaces
3
1⁄4
a
b
See 220.14(J).
See 220.14(K).
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 18:00:11 EST 2015
Committee Statement
178 of 1802
Committee Statement: The terms "therein" and "herein" have been deleted to simplify the language.
Response Message:
Public Input No. 3117-NFPA 70-2014 [Section No. 220.12]
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Ballot Results
179 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
4/22/2015 10:39 AM
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First Revision No. 327-NFPA 70-2015 [ Section No. 220.14(G) ]
(G) Show Windows.
Show windows shall be calculated in accordance with either of the following:
(1) The unit load per outlet as required in other provisions of this section
(2) At 200 volt-amperes per linear 300 mm (1 ft) of show window
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 18:11:52 EST 2015
Committee Statement
Committee Statement: The addition of the word “linear” in paren (2) clarifies the meaning of the requirement.
Response Message:
Public Input No. 170-NFPA 70-2014 [Section No. 220.14(G)]
Ballot Results
180 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 325-NFPA 70-2015 [ Section No. 220.42 ]
220.42 General Lighting.
The demand factors specified in Table 220.42 shall apply to that portion of the total branch-circuit load calculated for general illumination. They
shall not be applied in determining the number of branch circuits for general illumination.
Table 220.42 Lighting Load Demand Factors
Type of Occupancy
Dwelling units
Portion of Lighting Load to Which Demand Factor
Applies (Volt-Amperes)
Demand Factor
(%)
First 3000 or less at
100
From 3001 to 120,000 at
35
Remainder over 120,000 at
25
First 50,000 or less at
40
Remainder over 50,000 at
20
Hotels and motels, including apartment houses without provision First 20,000 or less at
for cooking by tenants*
From 20,001 to 100,000 at
50
Hospitals*
Warehouses (storage)
All others
40
Remainder over 100,000 at
30
First 12,500 or less at
100
Remainder over 12,500 at
50
Total volt-amperes
100
*The demand factors of this table shall not apply to the calculated load of feeders or services supplying areas in hospitals, hotels, and motels
where the entire lighting is likely to be used at one time, as in operating rooms, ballrooms, or dining rooms.
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 17:30:50 EST 2015
Committee Statement
Committee Statement: The term “or less” after “Dwelling Units First 3000” has been deleted from Table 220.42
Response Message:
Public Input No. 53-NFPA 70-2013 [Section No. 220.42]
Public Input No. 55-NFPA 70-2013 [Section No. 220.42]
Public Input No. 67-NFPA 70-2014 [Section No. 220.42]
Ballot Results
181 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
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Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 328-NFPA 70-2015 [ Section No. 220.61(B) ]
(B) Permitted Reductions.
A service or feeder supplying the following loads shall be permitted to have an additional demand factor of 70 percent applied to the amount in
220.61(B) (1) or portion of the amount in 220.61(B) (2) determined by the following basic calculations :
(1) A feeder or service supplying household electric ranges, wall-mounted ovens, counter-mounted cooking units, and electric dryers, where the
maximum unbalanced load has been determined in accordance with Table 220.55 for ranges and Table 220.54 for dryers
(2) That portion of the unbalanced load in excess of 200 amperes where the feeder or service is supplied from a 3-wire dc or single-phase ac
system; or a 4-wire, 3-phase, system; or a 3-wire, 2-phase system; or a 5-wire, 2-phase system
Informational Note: See Examples D1(a), D1(b), D2(b), D4(a), and D5(a) in Informative Annex D .
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 22 19:37:09 EST 2015
Committee Statement
Committee
Statement:
The "4-wire, 3-phase" ends with a comma rather than a semicolon. The revision of including the words “system” and “or a” after
3-phase and the semi-colon replacing the comma to make the text correct.
Response
Message:
Public Input No. 3129-NFPA 70-2014 [Section No. 220.61(B)]
Ballot Results
183 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
King, Donald M.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
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First Revision No. 344-NFPA 70-2015 [ Section No. 220.87 ]
220.87 Determining Existing Loads.
The calculation of a feeder or service load for existing installations shall be permitted to use actual maximum demand to determine the existing
load under all of the following conditions:
(1) The maximum demand data is available for a 1-year period.
Exception: If the maximum demand data for a 1-year period is not available, the calculated load shall be permitted to be based on the
maximum demand (measure of average power demand over a 15-minute period the highest average kilowatts reached and maintained
for a 15-minute interval ) continuously recorded over a minimum 30-day period using a recording ammeter or power meter connected to
the highest loaded phase of the feeder or service, based on the initial loading at the start of the recording. The recording shall reflect the
maximum demand of the feeder or service by being taken when the building or space is occupied and shall include by measurement or
calculation the larger of the heating or cooling equipment load, and other loads that may be periodic in nature due to seasonal or similar
conditions.
(2) The maximum demand at 125 percent plus the new load does not exceed the ampacity of the feeder or rating of the service.
(3) The feeder has overcurrent protection in accordance with 240.4 , and the service has overload protection in accordance with 230.90 .
Submitter Information Verification
Submitter Full Name: CMP 2
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 14:22:27 EST 2015
Committee Statement
Committee Statement: The added text will improve clarity and understanding of the term “maximum demand”.
Response Message:
Ballot Results
184 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Boynton, Charles L.
Buuck, Daniel
Domitrovich, Thomas A.
Duren, Ronald E.
Harman, Thomas L.
Hilbert, Mark R.
LaRocca, Robert L.
Manche, Alan
McGovern, William J.
Thorwegen, Jr., Stephen J.
Wood, Thomas H.
Affirmative with Comment
Coluccio, Frank
I agree with the committee statement
Negative with Comment
King, Donald M.
The inclusion of the word "highest" when referring to the average kilowatts for a 15 minute interval significantly increases the calculated demand and does
not provide a true average of the overall demand of the load. This could result in unnecessary oversizing of conductors.
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First Revision No. 904-NFPA 70-2015 [ Section No. 225.4 ]
225.4 Conductor Covering.
Where within 3.0 m (10 ft) of any building or structure other than supporting poles or towers, open individual (aerial) overhead conductors shall be
insulated for the nominal voltage. Conductors The insulation of conductors in cables or raceways, except Type MI cable, shall be of the rubbercovered type thermoset or thermoplastic type and, in wet locations, shall comply with 310.10(C) . Conductors The insulation of conductors for
festoon lighting shall be of the rubber-covered or thermoplastic type.
Exception: Equipment grounding conductors and grounded circuit conductors shall be permitted to be bare or covered as specifically permitted
elsewhere in this Code.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 12:33:46 EST 2015
Committee Statement
Committee Statement: The proposed language more accurately reflects current products and installation practices
Response Message:
Public Input No. 1327-NFPA 70-2014 [Section No. 225.4]
Ballot Results
185 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
Affirmative with Comment
Buchal, Thomas E.
It is unclear why there is an additional requirement for festoon lighting in this Article, however there is merit to the requirement.
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First Revision No. 902-NFPA 70-2015 [ Section No. 225.7(D) ]
(D) 600 1000 Volts Between Conductors.
Circuits exceeding 277 volts, nominal, to ground and not exceeding 600 exceeding 1000 volts, nominal, between conductors shall be permitted
to supply the auxiliary equipment of electric-discharge lamps in accordance with 210.6(D) (1).
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 08:50:09 EST 2015
Committee Statement
Committee Statement: There is a need to increase the voltage to 1000 volts for this type of equipment to meet current technologies.
Response Message:
Public Input No. 3383-NFPA 70-2014 [Section No. 225.7(D)]
Ballot Results
186 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 1023-NFPA 70-2015 [ Section No. 225.10 ]
225.10 Wiring on Buildings (or Other Structures).
The installation of outside wiring on surfaces of buildings (or other structures) shall be permitted for circuits of not over 1000 volts, nominal, as
the following : open wiring on insulators, as multiconductor cable, as Type MC cable, as Type UF cable, as Type MI cable, as messengersupported wiring, in rigid metal conduit (RMC), in intermediate metal conduit (IMC), in rigid polyvinyl chloride (PVC) conduit, in reinforced
thermosetting resin conduit (RTRC), in cable trays, as cablebus, in wireways, in auxiliary gutters, in electrical metallic tubing (EMT), in flexible
metal conduit (FMC), in liquidtight flexible metal conduit (LFMC), in liquidtight flexible nonmetallic conduit (LFNC), and in busways.
(1) Auxiliary gutters
(2) Busways
(3) Cable trays
(4) Cablebus
(5) Electrical metallic tubing (EMT)
(6)
Flexible metal conduit (FMC)
(7) Intermediate metal conduit (IMC)
(8) Liquidtight flexible metal conduit (LFMC)
(9) Liquidtight flexible nonmetallic conduit (LFNC)
(10) Messenger-supported wiring
(11) Multiconductor cable
(12) Open wiring on insulators
(13) Reinforced thermosetting resin conduit (RTRC)
(14) Rigid metal conduit (RMC)
(15) Rigid polyvinyl chloride conduit (PVC)
(16) Type MC cable
(17) Type MI cable
(18) Type UF cable
(19) Wireways
Circuits of over 1000 volts, nominal, shall be installed as provided in 300.37 .
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 21:13:17 EST 2015
Committee Statement
Committee Statement: Section 225.10 was changed to a list format for readability.
Response Message:
Public Input No. 3518-NFPA 70-2014 [Section No. 225.10]
Ballot Results
187 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
4/22/2015 10:39 AM
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Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 905-NFPA 70-2015 [ Section No. 225.12 ]
225.12 Open-Conductor Supports.
Open conductors shall be supported on glass or porcelain knobs, racks, brackets, or strain insulators. , that are made of glass, porcelain, or
other approved materials.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 13:03:46 EST 2015
Committee Statement
Committee Statement: This incorporates changes to reflect the materials currently being used.
Response Message:
Public Input No. 3143-NFPA 70-2014 [Section No. 225.12]
Public Input No. 3146-NFPA 70-2014 [Section No. 225.12]
Ballot Results
189 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 906-NFPA 70-2015 [ Section No. 225.17 ]
225.17 Masts as Supports.
Only feeder or branch-circuit conductors specified within this section shall be permitted to be attached to the feeder and/or branch-circuit mast.
Masts used for the support of final spans of feeders or branch circuits shall be installed in accordance with 225.17(A) and (B).
(A) Strength.
The mast shall be of have adequate strength or be supported by braces or guys to safely withstand safely the strain imposed by the overhead
feeder or branch-circuit conductors. Hubs intended for use with a conduit that serves serving as a mast for support of feeder or branch-circuit
conductors shall be identified for use with a mast.
(B) Attachment.
Feeder and/or branch-circuit conductors shall not be attached to a mast where the connection is between a weatherhead or the end of the
conduit and a coupling where the coupling is located above the last point of securement to the building or other structure, or where the coupling
is located above the building or other structure.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 13:14:02 EST 2015
Committee Statement
Committee
Statement:
This first revision incorporates changes that clarify the installation requirements for conduit masts that support overhead conductors
or cables.
Response Message:
Public Input No. 4792-NFPA 70-2014 [Section No. 225.17]
Public Input No. 3154-NFPA 70-2014 [Section No. 225.17(B)]
Ballot Results
190 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 907-NFPA 70-2015 [ Section No. 225.18 ]
225.18 Clearance for Overhead Conductors and Cables.
Overhead spans of open conductors and open multiconductor cables of not over 1000 volts, nominal, shall have a clearance of not less than the
following:
(1) 3.0 m (10 ft) — above finished grade, sidewalks, or from any platform or projection from which they might be reached are reachable where
the voltage does not exceed 150 volts to ground and accessible to pedestrians only
(2) 3.7 m (12 ft) — over residential property and driveways, and those commercial areas not subject to truck traffic where the voltage does not
exceed 300 volts to ground
(3) 4.5 m (15 ft) — for those areas listed in the 3.7 m (12 ft) classification where the voltage exceeds 300 volts to ground
(4) 5.5 m (18 ft) — over public streets, alleys, roads, parking areas subject to truck traffic, driveways on other than residential property, and
other land traversed by vehicles, such as cultivated, grazing, forest, and orchard
(5) 7.5 m (24. 5 1⁄2 ft) — over track rails of railroads
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 13:40:13 EST 2015
Committee Statement
Committee Statement: The new language is more grammatically correct.
Response Message:
Public Input No. 3156-NFPA 70-2014 [Section No. 225.18]
Ballot Results
191 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 908-NFPA 70-2015 [ Section No. 225.19(A) ]
(A) Above Roofs.
Overhead spans of open conductors and open multiconductor cables shall have a vertical clearance of not less than 2.5 7 m (8 ft 6 in. ) above
the roof surface. The vertical clearance above the roof level shall be maintained for a distance not less than 900 mm (3 ft) in all directions from
the edge of the roof.
Exception No. 1: The area above a roof surface subject to pedestrian or vehicular traffic shall have a vertical clearance from the roof surface in
accordance with the clearance requirements of 225.18 .
Exception No. 2: Where the voltage between conductors does not exceed 300, and the roof has a slope of 100 mm in 300 mm (4 in. in 12 in.)
or greater, a reduction in clearance to 900 mm (3 ft) shall be permitted.
Exception No. 3: Where the voltage between conductors does not exceed 300, a reduction in clearance above only the overhanging portion of
the roof to not less than 450 mm (18 in.) shall be permitted if (1) not more than 1.8 m (6 ft) of the conductors, 1.2 m (4 ft) horizontally, pass
above the roof overhang, and (2) they are terminated at a through-the-roof raceway or approved support.
Exception No. 4: The requirement for maintaining the vertical clearance 900 mm (3 ft) from the edge of the roof shall not apply to the final
conductor span where the conductors are attached to the side of a building.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 14:11:11 EST 2015
Committee Statement
Committee
Statement:
Although it is not necessary to coordinate the installation requirements between the National Electrical Code and the National Electrical
Safety Code as the NEC is used on the customer side of the “Service Point” and the NESC is used on the utility side of the “Service Point”.
Having the two documents coincide does promote uniformity of electrical installations.
Response
Message:
Public Input No. 3384-NFPA 70-2014 [Section No. 225.19(A)]
Ballot Results
192 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 909-NFPA 70-2015 [ Section No. 225.19(D)(2) ]
(2) Vertical Clearance.
The vertical clearance of final spans above, or within 900 mm (3 ft) measured horizontally of, platforms, projections, or surfaces from which they
might be reached are reachable shall be maintained in accordance with 225.18.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 14:21:30 EST 2015
Committee Statement
Committee Statement: The language is more in line with the NEC Style Manual and is more enforceable.
Response Message:
Public Input No. 3165-NFPA 70-2014 [Section No. 225.19(D)(2)]
Ballot Results
193 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 910-NFPA 70-2015 [ Section No. 225.19(D)(3) ]
(3) Building Openings.
The overhead branch-circuit and feeder conductors shall not be installed beneath openings through which materials may be moved, such as
openings in farm and commercial buildings, and shall not be installed where they obstruct entrance to these buildings’ openings.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 14:24:13 EST 2015
Committee Statement
Committee Statement: The word buildings’ has been removed to provide more clarity.
Response Message:
Public Input No. 3180-NFPA 70-2014 [Section No. 225.19(D)(3)]
Ballot Results
194 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 911-NFPA 70-2015 [ Section No. 225.20 ]
225.20 Mechanical Protection of Conductors Against Physical Damage .
Mechanical protection of conductors Conductors installed on buildings, structures, or poles shall be protected against physical damage as
provided for services in 230.50 .
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 14:26:02 EST 2015
Committee Statement
Committee Statement: This language more accurately reflects the reference requirements that are located in Section 230.50.
Response Message:
Public Input No. 3185-NFPA 70-2014 [Section No. 225.20]
Ballot Results
195 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 919-NFPA 70-2015 [ Section No. 225.22 ]
225.22 Raceways on Exterior Surfaces of Buildings or Other Structures.
Raceways on exteriors of buildings or other structures shall be arranged to drain and shall be suitable listed or approved for use in wet locations.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 16:43:34 EST 2015
Committee Statement
Committee
Statement:
The term “listed or approved” is more appropriate than the word “suitable” as it allows discretion by the AHJ for products that meet the
purpose as well as recognizing listed products.
Response
Message:
Public Input No. 3188-NFPA 70-2014 [Section No. 225.22]
Ballot Results
196 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 920-NFPA 70-2015 [ Section No. 225.27 ]
225.27 Raceway Seal.
Where a raceway enters a building or structure from an underground distribution system, outside , it shall be sealed in accordance with
300.5(G) . Spare or unused raceways shall also be sealed. Sealants shall be identified for use with the cable insulation, conductor insulation,
bare conductor, shield, or other components.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 16:47:26 EST 2015
Committee Statement
Committee Statement: This revised language makes it clear that any raceway that enters a building from outside locations needs to be sealed.
Response Message:
Public Input No. 993-NFPA 70-2014 [Section No. 225.27]
Ballot Results
197 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 921-NFPA 70-2015 [ Section No. 225.30 ]
225.30 Number of Supplies.
A building or other structure that is served by a branch circuit or feeder on the load side of a service disconnecting means shall be supplied by
only one feeder or branch circuit unless permitted in 225.30(A) through (E) (F) . For the purpose of this section, a multiwire branch circuit shall be
considered a single circuit.
Where a branch circuit or feeder originates in these additional buildings or other structures, only one feeder or branch circuit shall be permitted to
supply power back to the original building or structure, unless permitted in 225.30(A) through (E) (F) .
(A) Special Conditions.
Additional feeders or branch circuits shall be permitted to supply the following:
(1) Fire pumps
(2) Emergency systems
(3) Legally required standby systems
(4) Optional standby systems
(5) Parallel power production systems
(6) Systems designed for connection to multiple sources of supply for the purpose of enhanced reliability
(7) Electric vehicle charging systems listed, labeled , and identified for more than a single branch circuit/feeder
(B) Special Occupancies.
By special permission, additional feeders or branch circuits shall be permitted for either of the following:
(1) Multiple-occupancy buildings where there is no space available for supply equipment accessible to all occupants
(2) A single building or other structure sufficiently large to make two or more supplies necessary
(C) Capacity Requirements.
Additional feeders or branch circuits shall be permitted where the capacity requirements are in excess of 2000 amperes at a supply voltage of
1000 volts or less.
(D) Different Characteristics.
Additional feeders or branch circuits shall be permitted for different voltages, frequencies, or phases, or for different uses such as control of
outside lighting from multiple locations.
(E) Documented Switching Procedures.
Additional feeders or branch circuits shall be permitted to supply installations under single management where documented safe switching
procedures are established and maintained for disconnection.
(F) One- or Two-Family Dwelling Unit(s).
For a one- or two-family dwelling unit(s) with multiple feeders, it shall be permissible to install not more than six disconnects grouped at one
location where the feeders enter the building, provided the feeder conductors are sized 1/0 or larger and originate at the same location.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 16:54:25 EST 2015
Committee Statement
Committee
Statement:
The increased size of services and feeders to single family dwellings has made allowing more than one feeder to supply a dwelling unit
necessary. The requirement to group the disconnects for these feeders in one location and limit the number to six should address safety
concerns. In addition all of the existing labeling and placarding requirements remain in effect. A new reference to listed vehicle charging
equipment that requires more than one branch circuit and also qualifies as a structure was also added.
Response
Message:
Public Input No. 3487-NFPA 70-2014 [Section No. 225.30 [Excluding any Sub-Sections]]
Public Input No. 3919-NFPA 70-2014 [Section No. 225.30(A)]
Public Input No. 4315-NFPA 70-2014 [Section No. 225.30 [Excluding any Sub-Sections]]
Public Input No. 4318-NFPA 70-2014 [New Section after 225.30(E)]
Public Input No. 4608-NFPA 70-2014 [Section No. 225.30(A)]
Ballot Results
198 of 1802
This item has passed ballot
13 Eligible Voters
4/22/2015 10:39 AM
National Fire Protection Association Report
199 of 1802
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0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Bradley, Alex Z.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
Affirmative with Comment
Buchal, Thomas E.
The term labeled should be removed from 225.30 (A)(7). The requirement for labeling is a certification requirement as determined by the NRTL and does
not belong in an installation code.
Negative with Comment
Allison, Malcolm
NEMA opposes section A.7. "Electric Vehicles" are too specific and would exclude other electrical equipment. We suggest using "free standing electrical
structures" NEMA does not support the new section (F) which permits an unlimited number of feeders to a dwelling unit. It would permit multiple feeder
entries into a home similar to having multiple services with multiple sources of power entering the building. Location and number of disconnects are
addressed in NEC 225.32 and 225.33.
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First Revision No. 922-NFPA 70-2015 [ Section No. 225.32 ]
225.32 Location.
The disconnecting means shall be installed either inside or outside of the building or structure served or where the conductors pass through the
building or structure. The disconnecting means shall be at a readily accessible location nearest the point of entrance of the conductors. For the
purposes of this section, the requirements in 230.6 shall be utilized.
Exception No. 1: For installations under single management, where documented safe switching procedures are established and maintained for
disconnection, and where the installation is monitored by qualified individuals, the disconnecting means shall be permitted to be located
elsewhere on the premises.
Exception No. 2: For buildings or other structures qualifying under the provisions of Article 685 , the disconnecting means shall be permitted to
be located elsewhere on the premises.
Exception No. 3: For towers or poles used as lighting standards, the disconnecting means shall be permitted to be located elsewhere on the
premises.
Exception No. 4: For poles or similar structures used only for support of signs installed in accordance with Article 600 , the disconnecting means
shall be permitted to be located elsewhere on the premises.
Exception No. 5: For electric vehicle charging systems, the disconnecting means shall be installed in accordance with 625.42 .
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:04:20 EST 2015
Committee Statement
Committee Statement: This exception clarifies the disconnecting means location requirements for electric vehicle charging equipment.
Response Message:
Public Input No. 3924-NFPA 70-2014 [Section No. 225.32]
Public Input No. 4610-NFPA 70-2014 [Section No. 225.32]
Ballot Results
200 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 923-NFPA 70-2015 [ Section No. 225.36 ]
225.36 Type of Disconnecting Means.
The disconnecting means specified in 225.31 shall be comprised of a circuit breaker, molded case switch, general-use switch, snap switch, or
other approved means. Where applied in accordance with 250.32(B) , Exception No. 1, the disconnecting means shall be suitable for use as
service equipment.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:08:58 EST 2015
Committee Statement
Committee Statement: This change adds clarity to the title of 225.36.
Response Message:
Public Input No. 1229-NFPA 70-2014 [Section No. 225.36]
Public Input No. 1440-NFPA 70-2014 [Section No. 225.36]
Public Input No. 4505-NFPA 70-2014 [Section No. 225.36]
Public Input No. 4793-NFPA 70-2014 [Section No. 225.36]
Ballot Results
201 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Zgonena, Timothy P.
Affirmative with Comment
Whistler, Wendell R.
This disconnecting means shall meet the requirements of 110.25
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First Revision No. 924-NFPA 70-2015 [ Section No. 225.38(C) ]
(C) Disconnection of Grounded Conductor.
Where the building or structure disconnecting means does not disconnect the grounded conductor from the grounded conductors in the building
or structure wiring, other means shall be provided for this purpose at the location of the disconnecting means. A terminal or bus to which all
grounded conductors can be attached by means of pressure connectors shall be permitted for this purpose.
In a multisection switchboard or switchgear, disconnects for the grounded conductor shall be permitted to be in any section of the switchboard or
switchgear, provided that any such if the switchboard section or switchgear section is marked to indicate a grounded conductor disconnect is
located within.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:11:27 EST 2015
Committee Statement
Committee
Statement:
The new language is more appropriate and in accordance with the NEC Style Manual. Clarification was made relative to the
required marking.
Response Message:
Public Input No. 3190-NFPA 70-2014 [Section No. 225.38(C)]
Ballot Results
202 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 925-NFPA 70-2015 [ Section No. 225.52(C) ]
(C) Locking.
Disconnecting means shall be lockable in accordance with 110.25.
Exception: Where an individual disconnecting means consists of fused cutouts, a suitable enclosure capable of being locked and sized to
contain all cutout fuse holders shall be installed at a convenient location to the fused cutouts.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:15:15 EST 2015
Committee Statement
Committee Statement: The period at end of the sentence in the exception was missing.
Response Message:
Public Input No. 3195-NFPA 70-2014 [Section No. 225.52(C)]
Ballot Results
203 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 1000-NFPA 70-2015 [ New Section after 225.61 ]
225.70 Outdoor Overhead Conductors.
Single conductors that are insulated, covered, or bare shall be permitted to be installed outdoors as open wiring on support structures only for
systems rated over 1000 volts, nominal. They shall be permitted for service conductors, feeders, and branch circuits. They shall not be
permitted to be installed indoors.
Informational Note: For additional information on outdoor overhead conductors over 1000 volts, see ANSI/IEEE C2-2012, National
Electrical Safety Code .
225.71 Support.
Outdoor overhead conductors operating over 1000 volts shall meet any specified clearance requirements as applicable in 225.60 and
225.61 . The engineering design required by this section shall be performed by licensed professional engineers engaged primarily in the
design of such systems including the conductor spacings and clearances, and the installation of support structures. The design shall be
documented and the documentation shall be made available to the authority having jurisdiction.
(A) Conductors.
The spacing design shall demonstrate compliance with accepted national standards and shall address the following topics:
(1) Applied voltage
(2) Conductor size
(3) Distance between support structures
(4) Type of structure
(5) Wind/ice loading
(6) Surge protection
(B) Structures.
Structures of wood, metal, concrete, or combinations of those materials shall be provided for support of overhead conductors, over 1000 volts,
nominal. The structure design and the clearances to be obtained by that design shall demonstrate compliance with accepted national
standards and shall address the following topics:
(1) Soil conditions
(2) Foundations and structure settings
(3) Weight of all supported conductors and equipment
(4) Weather loading and other conditions such as ice, wind, temperature, and lightning
(5) Angle where change of direction occurs
(6) Spans between adjacent structures
(7) Effect of dead end structures
(8) Strength of guys and guy anchors
(9) Structure size and material(s)
(10) Hardware
(C) Insulators.
Insulators used to support conductors shall be rated for all of the following:
(1) The applied phase to phase voltage
(2) Mechanical strength required for each individual installation
(3) Impulse Withstand BIL in accordance with Table 490.24
Informational Note: 225.71(A) , (B), and (C) are not all-inclusive lists.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 08:31:32 EST 2015
Committee Statement
204 of 1802
Committee Statement: These installations are under the purview of CMP4 as they relate to the systems governed by Article 225.
Response Message:
Public Input No. 3671-NFPA 70-2014 [New Section after 225.61]
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Ballot Results
205 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Zgonena, Timothy P.
Affirmative with Comment
Whistler, Wendell R.
225.71 Support. Outdoor overhead conductors operating over 1000 volts shall meet any specified clearance requirements as applicable in 225.60 and
225.61. The engineering design required by this section shall be performed by licensed professional engineers engaged primarily in the design of such
ELECTRICAL systems including the conductor spacings and clearances, and the installation of support structures. THIS DESIGN SHALL HAVE A WET
STAMP BY THE LICENSED PROFFESIONAL ELECTRICAL ENGINEER.
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First Revision No. 926-NFPA 70-2015 [ Section No. 230.7 ]
230.7 Other Conductors in Raceway or Cable.
Conductors other than service conductors shall not be installed in the same service raceway or service cable.
Exception No. 1: Grounding electrode conductors and equipment or supply side bonding jumpers or conductors.
Exception No. 2: Load management control conductors having overcurrent protection.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:17:50 EST 2015
Committee Statement
Committee Statement: This language more accurately reflects the type of installation that would normally be made.
Response Message:
Public Input No. 385-NFPA 70-2014 [Section No. 230.7]
Ballot Results
206 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 927-NFPA 70-2015 [ Section No. 230.9(B) ]
(B) Vertical Clearance.
The vertical clearance of final spans above, or within 900 mm (3 ft) measured horizontally of, platforms, projections, or surfaces from which they
might be reached are reachable shall be maintained in accordance with 230.24(B) .
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:21:53 EST 2015
Committee Statement
Committee Statement: This language is more in line with the recommendations made in the NEC Style Manual and is easier to enforce.
Response Message:
Public Input No. 3159-NFPA 70-2014 [Section No. 230.9(B)]
Ballot Results
207 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 928-NFPA 70-2015 [ Section No. 230.10 ]
230.10 Vegetation as Support.
Vegetation such as trees shall not be used for support of overhead service conductors or service equipment .
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:26:56 EST 2015
Committee Statement
Committee
Statement:
Even though it is permissible to support other equipment, such as luminaires, from vegetation that is not under the purview of CMP 4.
Service equipment is under the purview of CMP 4 and should not be installed on vegetation.
Response
Message:
Public Input No. 1965-NFPA 70-2014 [Section No. 230.10]
Ballot Results
208 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 929-NFPA 70-2015 [ Section No. 230.24(B) ]
(B) Vertical Clearance for Overhead Service Conductors.
Overhead service conductors, where not in excess of 600 volts, nominal, shall have the following minimum clearance from final grade:
(1) 3.0 m (10 ft) — at the electrical service entrance to buildings, also at the lowest point of the drip loop of the building electrical entrance, and
above areas or sidewalks accessible only to pedestrians, measured from final grade or other accessible surface only for overhead service
conductors supported on and cabled together with a grounded bare messenger where the voltage does not exceed 150 volts to ground
(2) 3.7 m (12 ft) — over residential property and driveways, and those commercial areas not subject to truck traffic where the voltage does not
exceed 300 volts to ground
(3) 4.5 m (15 ft) — for those areas listed in the 3.7 m (12 ft) classification where the voltage exceeds 300 volts to ground
(4) 5.5 m (18 ft) — over public streets, alleys, roads, parking areas subject to truck traffic, driveways on other than residential property, and
other land such as cultivated, grazing, forest, and orchard
(5) 7.5 m (24 1⁄2) over tracks of railroads
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:29:15 EST 2015
Committee Statement
Committee
Statement:
There should be a requirement for service conductors installed over railroad tracks, this correlates with a similar requirement for
outside feeders in Article 225.
Response Message:
Public Input No. 2974-NFPA 70-2014 [Section No. 230.24(B)]
Ballot Results
209 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 936-NFPA 70-2015 [ Section No. 230.29 ]
230.29 Supports over Buildings.
Service conductors passing over a roof shall be securely supported by substantial structures. For a grounded system, where the substantial
structure is metal, it shall be bonded by means of a bonding jumper and listed connector to the grounded overhead service conductor. The
bonding jumper shall be of the same conductor size and material as the grounded overhead service conductor. Where practicable, such
supports shall be independent of the building.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 20:25:39 EST 2015
Committee Statement
Committee
Statement:
Metal structures that are mounted on or adjacent to buildings and that are used to support energized conductors should be
adequately bonded to limit shock hazards.
Response
Message:
Public Input No. 2976-NFPA 70-2014 [Section No. 230.29]
Ballot Results
210 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
1 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Zgonena, Timothy P.
Affirmative with Comment
Whistler, Wendell R.
For a grounded system, where the substantial structure is metal, it shall be bonded by means of a bonding jumper and listed connector to the grounded
overhead service conductor. The bonding jumper shall be of the same conductor size and material as the grounded overhead service conductor. FOR
UNGROUNDED SYSTEMS WHERE THE SUBSTANTIAL STRUCTURE METAL IT SHALL BE BONDED TO THE GROUNDING ELECTRODE SYSTEM.
Abstention
Buchal, Thomas E.
It is unclear how this could be accomplished if the metal building in not associated with the overhead wiring. Would a mast have to be installed on that
building to accomodate the bonding jumper? I do not disagree with the concept.
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First Revision No. 930-NFPA 70-2015 [ Section No. 230.30(A) ]
(A) Insulation.
Underground service conductors shall be insulated for the applied voltage.
Exception: A grounded conductor shall be permitted to be uninsulated as follows:
(1) Bare copper used in a raceway
(2) Bare copper for direct burial where bare copper is judged to be suitable approved for the soil conditions
(3) Bare copper for direct burial without regard to soil conditions where part of a cable assembly identified for underground use
(4) Aluminum or copper-clad aluminum without individual insulation or covering where part of a cable assembly identified for underground use
in a raceway or for direct burial
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:32:55 EST 2015
Committee Statement
Committee
Statement:
The term “approved” is more applicable than the term “judged to be suitable” and creates a more uniform understanding of the
requirement.
Response Message:
Public Input No. 1205-NFPA 70-2014 [Section No. 230.30(A)]
Ballot Results
211 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 931-NFPA 70-2015 [ Section No. 230.40 ]
230.40 Number of Service-Entrance Conductor Sets.
Each service drop, set of overhead service conductors, set of underground service conductors, or service lateral shall supply only one set of
service-entrance conductors.
Exception No. 1: A building with more than one occupancy shall be permitted to have one set of service-entrance conductors for each service,
as defined in 230.2 , run to each occupancy or group of occupancies. If the number of service disconnect locations for any given classification
of service does not exceed six, the requirements of 230.2(E) shall apply at each location. If the number of service disconnect locations exceeds
six for any given supply classification, all service disconnect locations for all supply characteristics, together with any branch circuit or feeder
supply sources, if applicable, shall be clearly described using suitable graphics or text, or both, on one or more plaques located in an approved,
readily accessible location(s) on the building or structure served and as near as practicable to the point(s) of attachment or entry(ies) for each
service drop or service lateral, and for each set of overhead or underground service conductors.
Exception No. 2: Where two to six service disconnecting means in separate enclosures are grouped at one location and supply separate loads
from one service drop, set of overhead service conductors, set of underground service conductors, or service lateral, one set of serviceentrance conductors shall be permitted to supply each or several such service equipment enclosures.
Exception No. 3: A single one -family dwelling unit and its accessory structures shall be permitted to have one set of service-entrance
conductors run to each from a single service drop, set of overhead service conductors, set of underground service conductors, or service
lateral.
Exception No. 4: Two-family dwellings, multifamily dwellings, and multiple occupancy buildings shall be permitted to have one set of serviceentrance conductors installed to supply the circuits covered in 210.25.
Exception No. 5: One set of service-entrance conductors connected to the supply side of the normal service disconnecting means shall be
permitted to supply each or several systems covered by 230.82 (5) or 230.82 (6).
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:35:46 EST 2015
Committee Statement
Committee Statement: The correct NEC term is one-family dwelling rather than single family dwelling.
Response Message:
Public Input No. 347-NFPA 70-2014 [Section No. 230.40]
Ballot Results
212 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 932-NFPA 70-2015 [ Section No. 230.41 ]
230.41 Insulation of Service-Entrance Conductors.
Service-entrance conductors entering or on the exterior of buildings or other structures shall be insulated.
Exception: A grounded conductor shall be permitted to be uninsulated as follows:
(1) Bare copper used in a raceway or part of a service cable assembly
(2) Bare copper for direct burial where bare copper is judged to be suitable approved for the soil conditions
(3) Bare copper for direct burial without regard to soil conditions where part of a cable assembly identified for underground use
(4) Aluminum or copper-clad aluminum without individual insulation or covering where part of a cable assembly or identified for underground
use in a raceway, or for direct burial
(5) Bare conductors used in an auxiliary gutter
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:37:26 EST 2015
Committee Statement
Committee
Statement:
The term “approved” is more applicable than the term “judged to be suitable” and creates a more uniform understanding of the
requirement.
Response Message:
Public Input No. 1206-NFPA 70-2014 [Section No. 230.41]
Ballot Results
213 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 947-NFPA 70-2015 [ Section No. 230.42(A) ]
(A) General.
The ampacity of service-entrance conductors shall not be less than either smaller than the largest required in 230.42(A)(1), (A)(2), or (A)(3).
Loads shall be determined in accordance with Part III, IV, or V of Article 220 , as applicable. Ampacity shall be determined from 310.15. The
maximum allowable current of busways shall be that value for which the busway has been listed or labeled.
(1) The sum of the noncontinuous loads plus 125 percent of continuous loads
Exception: Grounded conductors that are not connected to an overcurrent device shall be permitted to be sized at 100 percent of the
continuous and noncontinuous load.
(2) The sum of the noncontinuous load plus the continuous load after the application of any adjustment or correction factors
(3) The sum of the noncontinuous load plus the continuous load if the service-entrance conductors terminate in an overcurrent device where
both the overcurrent device and its assembly are listed for operation at 100 percent of their rating
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 13 08:26:20 EST 2015
Committee Statement
Committee
Statement:
This revision addresses concerns that electrical equipment should meet the requirements of listing and labeling as defined in Article 100
or be field evaluated for safety and applicability for use in the intended location.
Response
Message:
Public Input No. 882-NFPA 70-2014 [Section No. 230.42(A)]
Public Input No. 3339-NFPA 70-2014 [Section No. 230.42(A)]
Ballot Results
214 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
Affirmative with Comment
Buchal, Thomas E.
It was my understanding that when the term labeled was going to be used with the term listed, that it would be clear that this was a field label.
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First Revision No. 933-NFPA 70-2015 [ Section No. 230.44 ]
230.44 Cable Trays.
Cable tray systems shall be permitted to support service-entrance conductors. Cable trays used to support service-entrance conductors shall
contain only service-entrance conductors and shall be limited to the following methods:
(1) Type SE cable
(2) Type MC cable
(3) Type MI cable
(4) Type IGS cable
(5) Single conductors 1/0 and larger with CT rating that are listed for use in cable tray or cable assemblies with Type TC rating
Such cable trays shall be identified with permanently affixed labels with the wording “Service-Entrance Conductors.” The labels shall be located
so as to be visible after installation with a spacing not to exceed 3 m (10 ft) so that the service-entrance conductors are able to be readily traced
through the entire length of the cable tray.
Exception: Conductors, other than service-entrance conductors, shall be permitted to be installed in a cable tray with service-entrance
conductors, provided a solid fixed barrier of a material compatible with the cable tray is installed to separate the service-entrance conductors
from other conductors installed in the cable tray.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:42:14 EST 2015
Committee Statement
Committee
Statement:
In accordance with Article 336 and the 2014 UL White Book, Type TC rating is the proper terminology to be used for cable assemblies. It
is made clear that single conductors 1/0 and larger are also permitted provided they have been evaluated and listed for such use.
Response
Message:
Public Input No. 1234-NFPA 70-2014 [Section No. 230.44]
Public Input No. 4770-NFPA 70-2014 [Section No. 230.44]
Public Input No. 4794-NFPA 70-2014 [Section No. 230.44]
Ballot Results
215 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
Negative with Comment
Allison, Malcolm
4/22/2015 10:39 AM
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216 of 1802
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List item 5 should be revised to read: (5)Single-conductors 1/0 and larger that are listed for used in cable tray. The additional language "or Cable
Assemblies with Type TC rating" is confusing since "cable assemblies" is not defined and "Type TC" is a cable wiring method that has not been evaluated
for use as service conductors in cable tray.
4/22/2015 10:39 AM
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First Revision No. 903-NFPA 70-2015 [ Section No. 230.53 ]
230.53 Raceways to Drain.
Where exposed to the weather, raceways enclosing service-entrance conductors shall be suitable listed or approved for use in wet locations and
arranged to drain. Where embedded in masonry, raceways shall be arranged to drain.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 11:09:13 EST 2015
Committee Statement
Committee
Statement:
The term “listed or approved” is more appropriate than the word “suitable” as it allows discretion by the AHJ for products that meet the
purpose as well as recognizing listed products.
Response
Message:
Public Input No. 3203-NFPA 70-2014 [Section No. 230.53]
Ballot Results
217 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 934-NFPA 70-2015 [ Section No. 230.54(C) ]
(C) Service Heads and Goosenecks Above Service-Drop or Overhead Service Attachment.
Service heads raceways equipped with a service head and goosenecks in service-entrance cables shall be located above the point of
attachment of the service-drop or overhead service conductors to the building or other structure.
Exception: Where it is impracticable to locate the service head or gooseneck above the point of attachment, the service head or gooseneck
location shall be permitted not farther than 600 mm (24 in.) from the point of attachment.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:45:16 EST 2015
Committee Statement
Committee
Statement:
The hazard of water entering the service equipment is present in service raceways as much as it is in service cables. The installation
requirements should be the same for each of the installation methods.
Response
Message:
Public Input No. 4272-NFPA 70-2014 [Section No. 230.54(C)]
Ballot Results
218 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
Affirmative with Comment
Rogers, James J.
This needs to be fixed in the comment period as the language as written would only address weatherheads when they are installed on raceways and that
was not intended.
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First Revision No. 935-NFPA 70-2015 [ Section No. 230.66 ]
230.66 Marking.
Service equipment rated at 1000 volts or less shall be marked to identify it as being suitable for use as service equipment. All service equipment
shall be listed and labeled or field labeled . Individual meter socket enclosures shall not be considered service equipment but shall be listed and
rated for the voltage and ampacity of the service .
Exception: Meter sockets purchased or under the exclusive control of an electric utility are not required to be listed and labeled.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:48:05 EST 2015
Committee Statement
Committee
Statement:
This clarifies that although meter socket enclosures are not considered service equipment they are required to be listed for the
application. The exception ensures the utilities ability to provide meter sockets to their customers that may or may not be listed and
labeled..
Response
Message:
Public Input No. 883-NFPA 70-2014 [Section No. 230.66]
Public Input No. 2988-NFPA 70-2014 [Section No. 230.66]
Ballot Results
219 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
Negative with Comment
Buchal, Thomas E.
The term labeled in conjunction with listed should be dropped from the text as this implies that an installation code is specifying terms of certification. The
concept of field labeling service equipment is dubious at best but I would not object to retaining that part.
4/22/2015 10:39 AM
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First Revision No. 937-NFPA 70-2015 [ Section No. 230.71(A) ]
(A) General.
The service disconnecting means for each service permitted by 230.2 , or for each set of service-entrance conductors permitted by 230.40 ,
Exception No. 1, 3, 4, or 5, shall consist of not more than six switches or sets of circuit breakers, or a combination of not more than six switches
and sets of circuit breakers, mounted in a single enclosure, in a group of separate enclosures, or in or on a switchboard or in switchgear. There
shall be not more than six sets of disconnects per service grouped in any one location.
For the purpose of this section, disconnecting means installed as part of listed equipment and used solely for the following shall not be
considered a service disconnecting means:
(1) Power monitoring equipment
(2) Surge-protective device(s) that are installed in accordance with 285.23
(3) Control circuit of the ground-fault protection system
(4) Power-operable service disconnecting means
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 20:42:50 EST 2015
Committee Statement
Committee Statement: This language provides the information using language that is more in line with the NEC Style Manual.
Response Message:
Public Input No. 2993-NFPA 70-2014 [Section No. 230.71(A)]
Ballot Results
220 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 938-NFPA 70-2015 [ Section No. 230.75 ]
230.75 Disconnection of Grounded Conductor.
Where the service disconnecting means does not disconnect the grounded conductor from the premises wiring, other means shall be provided
for this purpose in the service equipment. A terminal or bus to which all grounded conductors can be attached by means of pressure connectors
shall be permitted for this purpose. In a multisection switchboard or switchgear, disconnects for the grounded conductor shall be permitted to be
in any section of the switchboard or switchgear, provided that any such if the switchboard or switchgear section is marked to indicate a grounded
conductor disconnect is located within.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 20:44:56 EST 2015
Committee Statement
Committee
Statement:
This language is more in line with the recommendations found in the NEC Style Manual and additional language was added to better
define the marking requirements.
Response
Message:
Public Input No. 3466-NFPA 70-2014 [Section No. 230.75]
Ballot Results
221 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 939-NFPA 70-2015 [ Section No. 230.82 ]
230.82 Equipment Connected to the Supply Side of Service Disconnect.
Only the following equipment shall be permitted to be connected to the supply side of the service disconnecting means:
(1) Cable limiters or other current-limiting devices.
(2) Meters and meter sockets nominally rated not in excess of 1000 volts, provided that if all metal housings and service enclosures are
grounded in accordance with Part VII and bonded in accordance with Part V of Article 250 .
(3) Meter disconnect switches nominally rated not in excess of 1000 V that have a short-circuit current rating equal to or greater than the
available short-circuit current, provided that if all metal housings and service enclosures are grounded in accordance with Part VII and
bonded in accordance with Part V of Article 250. A meter disconnect switch shall be capable of interrupting the load served. A meter
disconnect shall be legibly field marked on its exterior in a manner suitable for the environment as follows:
METER DISCONNECT
NOT SERVICE EQUIPMENT
(4) Instrument transformers (current and voltage), impedance shunts, load management devices, surge arresters, and Type 1 surge-protective
devices.
(5) Taps used only to supply load management devices, circuits for standby power systems, fire pump equipment, and fire and sprinkler alarms,
if provided with service equipment and installed in accordance with requirements for service-entrance conductors.
(6) Solar photovoltaic systems, fuel cell systems, wind electric systems, energy storage systems, or interconnected electric power production
sources.
(7) Control circuits for power-operable service disconnecting means, if suitable overcurrent protection and disconnecting means are provided.
(8) Ground-fault protection systems or Type 2 surge-protective devices, where installed as part of listed equipment, if suitable overcurrent
protection and disconnecting means are provided.
(9) Connections used only to supply listed communications equipment under the exclusive control of the serving electric utility, if suitable
overcurrent protection and disconnecting means are provided. For installations of equipment by the serving electric utility, a disconnecting
means is not required if the supply is installed as part of a meter socket, such that access can only be gained with the meter removed.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 20:47:38 EST 2015
Committee Statement
Committee
Statement:
This language in (2) and (3) more accurately reflects the type of language that is recommended by the NEC Style Manual. The
additional systems should be added to (6).
Response
Message:
Public Input No. 3467-NFPA 70-2014 [Section No. 230.82]
Public Input No. 2551-NFPA 70-2014 [Section No. 230.82]
Public Input No. 4309-NFPA 70-2014 [Section No. 230.82]
Ballot Results
222 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
4/22/2015 10:39 AM
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223 of 1802
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McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 948-NFPA 70-2015 [ Section No. 230.91 ]
230.91 Location.
The service overcurrent device shall be an integral part of the service disconnecting means or shall be located immediately adjacent thereto.
Where fuses are used as the service overcurrent device, the disconnecting means shall be located ahead of the supply side of the fuses.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 13 08:31:22 EST 2015
Committee Statement
Committee
Statement:
This new requirement will enhance safety as it will allow the de-energizing of fuses or other overcurrent devices for testing and
servicing.
Response Message:
Public Input No. 2996-NFPA 70-2014 [Section No. 230.70(A)]
Ballot Results
224 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Zgonena, Timothy P.
Affirmative with Comment
Whistler, Wendell R.
Where fuses are used as the service overcurrent device, the disconnecting means shall be located ahead of the supply side of the fuses. THE
DISCONNECTING MEANS SHALL MEET THE REQUIREMENTS OF 110.25
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First Revision No. 941-NFPA 70-2015 [ Section No. 230.95(C) ]
(C) Performance Testing.
The ground-fault protection system shall be performance tested when first installed on site. The test This testing shall be conducted by a
qualified person(s) using a test process of primary or secondary current injection, in accordance with instructions that shall be provided with the
equipment. A written record of this test testing shall be made and shall be available to the authority having jurisdiction.
Informational Note No. 1: Ground-fault protection that functions to open the service disconnect affords no protection from faults on the line
side of the protective element. It serves only to limit damage to conductors and equipment on the load side in the event of an arcing
ground fault on the load side of the protective element.
Informational Note No. 2: This added protective equipment at the service equipment may make it necessary to review the overall wiring
system for proper selective overcurrent protection coordination. Additional installations of ground-fault protective equipment may be
needed on feeders and branch circuits where maximum continuity of electric service is necessary.
Informational Note No. 3: Where ground-fault protection is provided for the service disconnect and interconnection is made with another
supply system by a transfer device, means or devices may be needed to ensure proper ground-fault sensing by the ground-fault protection
equipment.
Informational Note No. 4: See 517.17(A) for information on where an additional step of ground-fault protection is required for hospitals and
other buildings with critical areas or life support equipment.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 20:59:57 EST 2015
Committee Statement
Committee
Statement:
This test system provides more adequate functionality testing of the GFPE device. Secondary current injection is also included as this
may present fewer safety concerns. This clarifies that the testing must be conducted by qualified person(s).
Response
Message:
Public Input No. 4583-NFPA 70-2014 [Section No. 230.95(C)]
Public Input No. 1127-NFPA 70-2014 [Section No. 230.95(C)]
Ballot Results
225 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
4/22/2015 10:39 AM
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First Revision No. 942-NFPA 70-2015 [ Section No. 230.209 ]
230.209 Surge Arresters(Lightning Arresters) .
Surge arresters installed in accordance with the requirements of Article 280 shall be permitted on each ungrounded overhead service conductor.
Informational Note: Surge arresters may be referred to as lightning arresters in older documents.
Submitter Information Verification
Submitter Full Name: CMP 4
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 21:02:59 EST 2015
Committee Statement
Committee
Statement:
The removal of the term “Lightning Arresters” and the addition of the informational note properly reflect current terminology and
provide assistance in interpreting previous terminology.
Response
Message:
Public Input No. 4270-NFPA 70-2014 [Section No. 230.209]
Ballot Results
226 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Allison, Malcolm
Bradley, Alex Z.
Buchal, Thomas E.
Cialdea, James G.
Fries, Ronald Todd
Gibbs, Mark D.
McDaniel, Roger D.
Paiss, Matthew
Rogers, James J.
Toomer, Ronald J.
Weitzel, Michael K.
Whistler, Wendell R.
Zgonena, Timothy P.
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First Revision No. 2702-NFPA 70-2015 [ Definition: Tap Conductors. ]
Tap Conductors Conductor .
As used in this article, a tap conductor is defined as a conductor A conductor , other than a service conductor, that has overcurrent protection
ahead of its point of supply that exceeds the value permitted for similar conductors that are protected as described elsewhere in 240.4 .
Submitter Information Verification
Submitter Full Name: CMP 10
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 09:32:54 EST 2015
Committee Statement
Committee Statement: This first revision is editorial in nature in compliance with the NEC style manual.
Response Message:
Public Input No. 4025-NFPA 70-2014 [Definition: Tap Conductors.]
Ballot Results
227 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Blizard, Scott A.
Burns, Julian R.
Darling, Dennis M.
Dollard, Jr., James T.
Fredericks, Carl
Kauer, Robert J.
Mount, Jr., Robert W.
Rempe, Kenneth J.
Saporita, Vincent J.
Sobel, Richard
Vance, Christopher R.
Affirmative with Comment
Hidaka, Jeffrey H.
none
4/22/2015 10:39 AM
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First Revision No. 2703-NFPA 70-2015 [ Section No. 240.6(A) ]
(A) Fuses and Fixed-Trip Circuit Breakers.
The standard ampere ratings for fuses and inverse time circuit breakers shall be considered 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100,
110, 125, 150, 175, 200, 225, 250, 300, 350, 400, 450, 500, 600, 700, 800, 1000, 1200, 1600, 2000, 2500, 3000, 4000, 5000, and 6000
amperes as shown in Table 240.6(A) . Additional standard ampere ratings for fuses shall be 1, 3, 6, 10, and 601. The use of fuses and inverse
time circuit breakers with nonstandard ampere ratings shall be permitted.
Table 240.6(A) Standard Ampere Ratings for Fuses and Inverse Time Circuit Breakers
Standard Ampere Ratings
15
20
25
30
40
45
50
60
35
70
80
90
100
110
125
150
175
200
225
250
300
350
400
450
500
600
700
800
1000
1200
1600
2000
2500
3000
4000
5000
6000
—
—
—
Submitter Information Verification
Submitter Full Name: CMP 10
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 10:00:33 EST 2015
Committee Statement
Committee
Statement:
This first revision editorially revises the standard ampere ratings for fuses and inverse time circuit breakers into a table format for
clarity and usability.
Response Message:
Public Input No. 1056-NFPA 70-2014 [Section No. 240.6(A)]
Public Input No. 1441-NFPA 70-2014 [Section No. 240.6(A)]
Ballot Results
228 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Blizard, Scott A.
Burns, Julian R.
Darling, Dennis M.
Dollard, Jr., James T.
Fredericks, Carl
Kauer, Robert J.
Mount, Jr., Robert W.
Rempe, Kenneth J.
Saporita, Vincent J.
Sobel, Richard
Vance, Christopher R.
Affirmative with Comment
Hidaka, Jeffrey H.
none
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First Revision No. 2704-NFPA 70-2015 [ Section No. 240.21(C)(4) ]
(4) Outside Secondary Conductors.
Where the conductors are located outdoors outside of a building or structure, except at the point of load termination, and comply with all of the
following conditions:
(1) The conductors are protected from physical damage in an approved manner.
(2) The conductors terminate at a single circuit breaker or a single set of fuses that limit the load to the ampacity of the conductors. This single
overcurrent device shall be permitted to supply any number of additional overcurrent devices on its load side.
(3) The overcurrent device for the conductors is an integral part of a disconnecting means or shall be located immediately adjacent thereto.
(4) The disconnecting means for the conductors is installed at a readily accessible location complying with one of the following:
a.
Outside of a building or structure
b.
Inside, nearest the point of entrance of the conductors
c.
Where installed in accordance with 230.6 , nearest the point of entrance of the conductors
Submitter Information Verification
Submitter Full Name: CMP 10
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 11:38:44 EST 2015
Committee Statement
Committee Statement: The title of the section is "Outside Secondary Conductors". The body of the text should align.
Revision is presented in the attached word file.
Response Message:
Public Input No. 432-NFPA 70-2014 [Section No. 240.21(C)(4)]
Ballot Results
229 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Blizard, Scott A.
Burns, Julian R.
Darling, Dennis M.
Dollard, Jr., James T.
Fredericks, Carl
Kauer, Robert J.
Mount, Jr., Robert W.
Rempe, Kenneth J.
Saporita, Vincent J.
Sobel, Richard
Vance, Christopher R.
Affirmative with Comment
Hidaka, Jeffrey H.
none
4/22/2015 10:39 AM
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First Revision No. 2705-NFPA 70-2015 [ Section No. 240.24(A) ]
(A) Accessibility.
Overcurrent Switches containing fuses, and circuit breakers devices shall be readily accessible and shall be installed so that the center of the
grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more than 2.0 m (6 ft 7 in.) above the floor or
working platform, unless one of the following applies:
(1) For busways, as provided in 368.17(C) .
(2) For supplementary overcurrent protection, as described in 240.10 .
(3) For overcurrent devices, as described in 225.40 and 230.92 .
(4) For overcurrent devices adjacent to utilization equipment that they supply, access shall be permitted to be by portable means.
Exception: The use of a tool shall be permitted to access overcurrent devices located within listed industrial control panels or similar
enclosures.
Submitter Information Verification
Submitter Full Name: CMP 10
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 13:57:32 EST 2015
Committee Statement
Committee
Statement:
The first sentence has been revised and an exception added to clarify the requirement. This is necessary because of the change to the
definition of “Accessible, Readily” in the 2014 NEC. This clarifies that a screwdriver (a tool) is permissible to be used to open the enclosure
in order to gain access to the overcurrent device.
For PI 4105, the proposed requirement for an externally operating disconnect means would be more appropriately located in Article 409.
The Correlating Committee is requested to appoint a Task Group to review the definition and global usage of “Accessible, Readily”.
Response
Message:
Public Input No. 2848-NFPA 70-2014 [Section No. 240.24(A)]
Public Input No. 4105-NFPA 70-2014 [Section No. 240.24(A)]
Ballot Results
230 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
10 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Blizard, Scott A.
Burns, Julian R.
Darling, Dennis M.
Dollard, Jr., James T.
Kauer, Robert J.
Mount, Jr., Robert W.
Rempe, Kenneth J.
Saporita, Vincent J.
Sobel, Richard
Vance, Christopher R.
Affirmative with Comment
Fredericks, Carl
I’m voting affirmative on the panel action, but would suggest that in the next available revision we remove the word “listed” from this new exception text.
Non-listed control panels that are compliant with NEC Article 409 will have the same issues that this exception addresses, and it would seem more logical
4/22/2015 10:39 AM
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for the code to have the exception text in one location. The Task Group as suggested by the panel statement to review the definition and global usage of
“Accessible, Readily” may be the best way to completely address this issue.
Hidaka, Jeffrey H.
The comma after fuses and the word "devices" should be deleted.
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First Revision No. 2707-NFPA 70-2015 [ New Section after 240.61 ]
240.67 Arc Energy Reduction.
Where the ampere rating of the fusible switch is 1200 A or higher, 240.67(A) and (B) shall apply. This requirement shall become effective
January 1, 2020.
(A) Documentation.
Documentation shall be available to those authorized to design, install, operate, or inspect the installation as to the location of the fusible
switch(es).
(B) Method to Reduce Clearing Time.
One of the following shall be provided:
(1) Differential relaying
(2) Energy-reducing maintenance switching with local status indicator
(3) Energy-reducing active arc flash mitigation system
(4) A fuse that would open the circuit in 0.07 seconds or less, at or below the available arcing current
(5) An approved equivalent means
Informational Note No. 1: An energy-reducing maintenance switch allows a worker to set a disconnect switch to reduce the clearing
time while the worker is working within an arc-flash boundary as defined in NFPA 70E -2015, Standard for Electrical Safety in the
Workplace , and then to set the disconnect switch back to a normal setting after the potentially hazardous work is complete.
Informational Note No. 2: An energy-reducing active arc flash mitigation system helps in reducing arcing duration in the electrical
distribution system. No change in the disconnect switch or the settings of other devices is required during maintenance when a worker
is working within an arc flash boundary as defined in NFPA 70E -2015, Standard for Electrical Safety in the Workplace .
Informational Note No. 3: IEEE 1584, IEEE Guide for performing Arc Flash Hazard Calculations , is one of the available methods that
provide guidance in determining arcing current.
Submitter Information Verification
Submitter Full Name: CMP 10
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 17:30:04 EST 2015
Committee Statement
232 of 1802
Committee
Statement:
The benefits of an arc energy reduction requirement that reduces incident energy for circuit breakers rated 1200 ampere and greater have
been well established. Those same methods of incident energy reduction could also be utilized with 1200 ampere and greater fusible
switches. This public input is based upon the requirements in 240.87, but modified to work with fusible switches. Arc energy reduction
requirements for fuses and circuit breakers must be located in the appropriate part of Article 240. The present arc energy reduction
requirement is properly located in Part VII Circuit Breakers. An arc energy reduction requirement for fuse applications is properly located in
Part VI Cartridge Fuses and Fuseholders. The numbering sequence of 240.67 is chosen to coincide with 240.87.
Basing this proposed new requirement on the existing text in 240.87 retains the parent text modified for fusible switches. First level
subdivision (A) is retained for necessary documentation. First level subdivision (B) similarly addresses methods to reduce clearing time as
follows:
(1) Differential relaying.
(2) Energy-reducing maintenance switching with local status indicator.
(3) Energy-reducing active arc flash mitigation system.
(4) An available arcing current that would open the circuit in 0.07 seconds or less. Circuit breakers utilizing ZSI to meet the requirements of
240.87 can take up to 0.07 seconds to open the circuit. Therefore, a maximum fuse opening time of 0.07 seconds was also chosen in list item
(4) to provide equivalent protection to that provided by circuit breakers.
(5) An approved equivalent means
The existing informational notes in 240.87 are retained for clarity.
The delay in the effective date for this requirement is needed to ensure the electrical industry can respond with feasible solutions, available
from multiple manufacturers, to meet this requirement.
Informational Note No. 3 on IEEE 1584 has been added to describe at least one of the available methods to calculate incident energy.
Response
Message:
Public Input No. 3293-NFPA 70-2014 [New Section after 240.61]
4/22/2015 10:39 AM
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Ballot Results
233 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
9 Affirmative All
2 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Blizard, Scott A.
Burns, Julian R.
Darling, Dennis M.
Dollard, Jr., James T.
Kauer, Robert J.
Mount, Jr., Robert W.
Rempe, Kenneth J.
Saporita, Vincent J.
Sobel, Richard
Affirmative with Comment
Hidaka, Jeffrey H.
none
Vance, Christopher R.
The Informational Note 3 should be excluded as it is already covered by the work practice document NFPA 70E referenced in IN 2
Negative with Comment
Fredericks, Carl
I’m voting against the panel action to create this new Section 240.67, because it lacks two key elements that were also proposed and rejected for 240.87:
First as proposed in PI 1704 for 240.87, methods to reduce clearing time should not be required by the NEC for installations where the calculated incident
energy at the working distance is 8 cal/cm2 or less. Required PPE for this energy level is consistent with the reduced PPE level that will be required after
approved methods to reduce clearing time are applied to some installations, and consistent with what is needed for some installations that do not fall under
240.87 or would not fall under 240.67. It is common in many workplaces to provide 8 cal/cm2 clothing as daily wear. Second as proposed in PI 1764 for
240.87, there should be an exception to these requirements where the fusible switch serves continuous industrial processes where a lack of protective
device coordination will introduce greater or other hazards. All of the measures that could be cost-effectively provided for loads served by an outgoing
fusible switch would introduce some level of protective device miscoordination. Qualified industrial users should be allowed to appropriately manage the full
spectrum of hazards, which they could do via the proposed exception. ACC could support the proposed new section if the above two changes were made.
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First Revision No. 2706-NFPA 70-2015 [ Section No. 240.87(B) ]
(B) Method to Reduce Clearing Time.
One of the following or approved equivalent means shall be provided:
(1) Zone-selective interlocking
(2) Differential relaying
(3) Energy-reducing maintenance switching with local status indicator
(4) Energy-reducing active arc flash mitigation system
(5) An approved equivalent means An instantaneous trip setting that is less than the available arcing current
(6) An instantaneous override that is less than the available arcing current
(7) An approved equivalent means
Informational Note No. 1: An energy-reducing maintenance switch allows a worker to set a circuit breaker trip unit to “no intentional delay”
to reduce the clearing time while the worker is working within an arc-flash boundary as defined in NFPA 70E-2012 2015 , Standard for
Electrical Safety in the Workplace, and then to set the trip unit back to a normal setting after the potentially hazardous work is complete.
Informational Note No. 2: An energy-reducing active arc flash mitigation system helps in reducing arcing duration in the electrical
distribution system. No change in the circuit breaker or the settings of other devices is required during maintenance when a worker is
working within an arc flash boundary as defined in NFPA 70E-2012 2015 , Standard for Electrical Safety in the Workplace.
Informational Note No. 3: An instantaneous trip is a function that causes a circuit breaker to trip with no intentional delay when currents
exceed the instantaneous trip setting or current level. If arcing currents are above the instantaneous trip level, the circuit breaker will trip in
the minimum possible time.
Informational Note No. 4: IEEE 1584–2002, IEEE Guide for Performing Arc Flash Hazard Calculations , is one of the available methods
that provide guidance in determining arcing current.
Submitter Information Verification
Submitter Full Name: CMP 10
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 12 15:06:04 EST 2015
Committee Statement
Committee
Statement:
The phrase “or an approved equivalent means” is removed from the parent text of 240.87(B) editorially as it exists in present list item (5).
This proposed revision creates new list items (5) and (6) for clarity and usability. These new list items will now clearly describe specific
permitted methods of achieving the arc energy reduction required in this section. It is critical that the available arcing current exceeds the
instantaneous trip or instantaneous override in order for the circuit breaker to open as quickly as possible during an arcing fault, and that is the
whole purpose of Section 240.87(B), to open as quickly as possible during an arcing fault. It is not enough to just require an instantaneous trip
or an instantaneous override, because the arcing current could be low enough that it takes the circuit breaker many cycles to many seconds to
open. If the arcing current is greater than the instantaneous trip or instantaneous override, most circuit breakers will clear somewhere between
½ cycle (smaller molded case type) and 3 cycles (power or “air-frame” type), providing the increased protection that 240.87 intends. This
addresses the concerns that Mr. Kauer raised in the balloting stage on comment 10-24 in the 2014 NEC revision cycle.
Existing list item (5) is editorially relocated as list item (7) and continues to permit other “approved methods” which may include new
technologies.
Informational Note No. 3 on “Instantaneous Trip” from PI 1640 has been added to explain the relationship between an instantaneous trip and
incident energy.
Informational Note No. 4 on IEEE 1584 has been added to describe at least one of the available methods to calculate incident energy.
Response
Message:
Public Input No. 567-NFPA 70-2014 [Section No. 240.87(B)]
Public Input No. 1384-NFPA 70-2014 [Section No. 240.87(B)]
Public Input No. 1385-NFPA 70-2014 [Section No. 240.87(B)]
Public Input No. 1443-NFPA 70-2014 [Section No. 240.87(B)]
Public Input No. 1640-NFPA 70-2014 [Section No. 240.87(B)]
Public Input No. 2243-NFPA 70-2014 [Section No. 240.87(B)]
Ballot Results
234 of 1802
This item has passed ballot
12 Eligible Voters
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0 Not Returned
11 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Blizard, Scott A.
Burns, Julian R.
Darling, Dennis M.
Dollard, Jr., James T.
Fredericks, Carl
Kauer, Robert J.
Mount, Jr., Robert W.
Rempe, Kenneth J.
Saporita, Vincent J.
Sobel, Richard
Vance, Christopher R.
Affirmative with Comment
Hidaka, Jeffrey H.
none
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First Revision No. 1202-NFPA 70-2015 [ Section No. 250.3 ]
250.3 Application of Other Articles.
For other articles applying to particular cases of installation of conductors and equipment, grounding and bonding requirements are identified in
Table 250.3 that are in addition to, or modifications of, those of this article.
Table 250.3 Additional Grounding and Bonding Requirements
Conductor/Equipment
Article
Agricultural buildings
547.9 and 547.10
Audio signal processing, amplification, and reproduction equipment
640.7
Branch circuits
210.5, 210.6, 406.3
Cablebus
Cable trays
370.9
392
Capacitors
720
Communications circuits
800
Community antenna television and radio distribution systems
820.93, 820.100, 820.103, 820.106
Conductors for general wiring
310
Cranes and hoists
610
Electrically driven or controlled irrigation machines
675.11(C), 675.12, 675.13, 675.14, 675.15
Electric signs and outline lighting
600
Electrolytic cells
668
Elevators, dumbwaiters, escalators, moving walks, wheelchair lifts, and stairway chairlifts
620
Fixed electric heating equipment for pipelines and vessels
427.29, 427.48
Fixed outdoor electric deicing and snow-melting equipment
426.27
Flexible cords and cables
400.22, 400.23
Floating buildings
553.8, 553.10, 553.11
Grounding-type receptacles, adapters, cord connectors, and attachment plugs
406.9
500–517
Health care facilities
517
Induction and dielectric heating equipment
665
Industrial machinery
670
Information technology equipment
645.15
Intrinsically safe systems
504.50
Luminaires and lighting equipment
Luminaires, lampholders, and lamps
410.40, 410.42, 410.46, 410.155(B)
410
Marinas and boatyards
Mobile homes and mobile home park
555.15
550
Motion picture and television studios and similar locations
530.20, 530.64(B)
Motors, motor circuits, and controllers
430
Natural and artificially made bodies of water
682
Network Powered Broadband Communications Circuits
682.30, 682.31, 682.32, 682.33
830.93, 830.100, 830.106
Optical Fiber Cables
770.100
Outlet, device, pull, and junction boxes; conduit bodies; and fittings
314.4, 314.25
Over 600 volts, nominal, underground wiring methods
300.50(C)
Panelboards
408.40
Pipe organs
650
Radio and television equipment
810
Receptacles and cord connectors
406.3
Recreational vehicles and recreational vehicle parks
551
Services
230
Solar photovoltaic systems
Swimming pools, fountains, and similar installations
392.60
460.10, 460.27
Circuits and equipment operating at less than 50 volts
Hazardous (classified) locations
Section
690.41, 690.42, 690.43, 690.45, 690.47
680
Switchboards and panelboards
408.3(D)
Switches
404.12
Theaters, audience areas of motion picture and television studios, and similar locations
520.81
Transformers and transformer vaults
450.10
Use and identification of grounded conductors
200
X-ray equipment
660
517.78
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Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 16:15:58 EST 2015
Committee Statement
Committee Statement: This FR corrects the omissions of 820.106 and Articles 770 and 830.
Response Message:
Public Input No. 1595-NFPA 70-2014 [Section No. 250.3]
Ballot Results
237 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
2017 and 2019 are below FR1218 – 250.30(A)(6) Task group indication that the word provided was not struck out and replaced with the word “if”. The word
is used in Exception 1, but was also not changed in the word summary document. Not sure what the submitter was looking for here. FR1220 – 250.52(A)(8)
The prohibition against using swimming pool structures and grids was inserted in electrodes permitted (part A), should have been entered as 250.52(B)(3)
instead. The panel also requested this be sent on to CMP 17 for comment FR 1215 – 250.94 The FR the committee acted on was FR1232, The text and
underlining in TerraView is correct, as well as the panel statement. There is no mention of the resolved PI in response message. The following PIs may
need to be added at the Response Message portion: Public Input No 436 NFPA 70-2014 [Section No 250.94] Public Input No 3837 NFPA 70-2014 [Section
No 250.94] Pubic Input No 3708 NFPA 70-2014 [Section No 250.94] FR 7509 250.102 (in TerraView) should have been noted as FR 1233. It is correct for
section 250.102. This does not include the work in FR 1234 that the panel accepted for Table 250.102(C)(1). NONE of the work on the Table shows up in
TerraView. The panel re-ordered the notes to make it clear when they apply. FR 1216 250.104 At 250.104(A)(1) list item (4)additional wording is missing
that should read: “if the grounding electrode conductor or bonding jumper to the grounding electrode is of sufficient size”.
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First Revision No. 1203-NFPA 70-2015 [ Section No. 250.4(A)(1) ]
(1) Electrical System Grounding.
Electrical systems that are grounded shall be connected to earth in a manner that will limit the voltage imposed by lightning, line surges, or
unintentional contact with higher-voltage lines and that will stabilize the voltage to earth during normal operation.
Informational Note No. 1: An important consideration for limiting the imposed voltage is the routing of bonding and grounding electrode
conductors so that they are not any longer than necessary to complete the connection without disturbing the permanent parts of the
installation and so that unnecessary bends and loops are avoided.
Informational Note No. 2: See NFPA 780 -2017, Standard for the Installation of Lightning Protection Systems , for information on
lightning protection system grounding.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 16:18:48 EST 2015
Committee Statement
Committee
Statement:
The NEC is not a lightning protection document. Adding the reference to NFPA 780 will provide additional information for
ungrounded systems.
Response Message:
Public Input No. 4659-NFPA 70-2014 [Section No. 250.4(A)(1)]
Public Input No. 4695-NFPA 70-2014 [Section No. 690.13(C)]
Ballot Results
238 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
4 Affirmative All
13 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Dobrowsky, Paul
Helfrich, William J.
Sasso, Nick
Steinman, Gregory J.
Affirmative with Comment
Beckstrand, Gary A.
The Panel Statement is incorrect for FR 1203. It should read. "The NEC is not a lightning protection document. Adding the reference to NFPA 780 will
provide additional information for grounded systems." The addition of the reference to NFPA 780-2017 is inappropriate as the document is not in current
cycle. The reference should be verified by the CMP in the Comment cycle.
Bowmer, Trevor N.
Item (1) - The panel statement for this FR is not correctly stated. This section is for grounded systems, whereas the panel statement is for the ungrounded
section. Item (2)- The version of the standard referenced is the 2017 Edition. A question arises as to the validity of using that date. It will be published prior
to the publication of the NEC, but is not yet published. Item (3) - FR-1204 addressing 250.4(B)(1) is missing from Terraview and this ballot. The FR-1204
accepted by the CMP5 has the same informational note, applicable to ungrounded systems. In addition, the same issue with the date of the referenceed
standard NFPA 780 is present.
Brett, Jr., Martin J.
250.4(A)(1) Two issues: First, the panel statement is not correctly stated. This section is for grounded systems, the panel statement is for the ungrounded
section. Second the version of the standard referenced is the 2017 Edition. Question arises as to the validity of using that date. It will be published prior to
the publication of the NEC, but is not yet published. Also note identical informational note and reference accepted as FR 1204 by the committee did not
show up in TerraView The panel statement in TerraView for 250.4(B)(1) which would be for ungrounded systems.
Edwards, Timothy
I could not find any record from Task Group three of any changes to 250.104(A)(2) but TerraView shows changes for bonding of metal water piping in
building of multiple occupancy. What we had “The bonding jumper shall be sized in accordance with Table 250.122 based on the rating of the overcurrent
device supplying the occupancy.” has been replaced with “The equipment bonding jumper shall be sized in accordance with Table 250.122 250.102(D),
based on the rating of the overcurrent protective device for the circuit supplying the occupancy.” At 250/104(A)(3) there is missing existing text that we
struck out At 250.104(A)(3)(c) additional text has been added “if the grounding electrode conductor or bonding jumper to the grounding electrode is of
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sufficient size” At the paragraph following 250/104(A)(3)(c) we had Table 250.66 referenced, it now shows as Table 250.102(C)(1) – which is correct, not
sure we voted on that however. Section 250.104(B) has been changed to reference sizing bonding conductors for other piping in accordance with Table
250.102(C)(1) instead and in addition to Table 250.122 which is kept in this section only for sizing equipment grounding conductors (which makes NO
sense) 250.104(C) Structural Metal has changes in the main paragraph not shown in our summaries.
Harding, G. Scott
250.4(A)(1)The panel statement is not correctly stated. This section is for grounded systems, the panel statement is for the ungrounded section. Second
the version of the standard referenced is the 2017 Edition. Question arises as to the validity of using that date. It will be published prior to the publication of
the NEC, but is not yet published. Also note identical informational note and reference accepted as FR 1204 by the committee did not show up in
TerraView. The panel statement in TerraView for FR 1204 250.4(B)(1) which would be for ungrounded systems.
Harding, Joseph
FR1203 – 250.4(A)(1) Two issues: First, the panel statement is not correctly stated. This section is for grounded systems, the panel statement is for the
ungrounded section. Second the version of the standard referenced is the 2017 Edition. Question arises as to the validity of using that date. It will be
published prior to the publication of the NEC, but is not yet published. Also note identical informational note and reference accepted as FR 1204 by the
committee did not show up in TerraView The panel statement in TerraView for 250.4(B)(1) which would be for ungrounded systems.
Mello, Charles F.
The Informational Note No.1 was noted that the "No. 1" was not underlined indicating the change in text since Informational Note No. 2 was added as a
result of the First Revision change. The panel statement should be corrected as follows: "The NEC is not a lightning protection Document. Adding the
reference to NFPA 780 will provide additional information for grounded systems." It is also noted that FR 1204 is not on the ballot to have the same
informational note added to 250.4(B)(1) with the same panel statement except for the reference to "grounded" systems would be for "ungrounded" systems.
Mohla, Daleep C.
First, the panel statement is not correctly stated. This section is for grounded systems, the panel statement is for the ungrounded section. Second the
version of the standard referenced is the 2017 Edition. Question arises as to the validity of using that date. It will be published prior to the publication of the
NEC, but is not yet published. Also note identical informational note and reference accepted as FR 1204 by the committee did not show up in TerraView
The panel statement in TerraView for 250.4(B)(1) which would be for ungrounded systems. FR1204 – 250.4(B)(1) Does not show up in TerraView. It is an
identical informational note, applicable to ungrounded systems. Same issue with the date of the standard NFPA 780
O'Meara, Mike
Two issues: First, the panel statement is not correctly stated. This section is for grounded systems, the panel statement is for the ungrounded section.
Second the version of the standard referenced is the 2017 Edition. Question arises as to the validity of using that date. It will be published prior to the
publication of the NEC, but is not yet published. Also note identical informational note and reference accepted as FR 1204 by the committee did not show
up in TerraView The panel statement in TerraView for 250.4(B)(1) which would be for ungrounded systems. FR1204 - 250.4(B)(1) Does not show up in
TerraView. It is an identical informational note, applicable to ungrounded systems. Same issue with the date of the standard NFPA 780
Palmieri, Charles J.
250.4(A)(1) Two issues: First, the panel statement is not correctly stated. This section is for grounded systems, the panel statement is for the ungrounded
section. Second the version of the standard referenced is the 2017 Edition. Question arises as to the validity of using that date. It will be published prior to
the publication of the NEC, but is not yet published. Also note identical informational note and reference accepted as FR 1204 by the committee did not
show up in Terra View The panel statement in Terra View for 250.4(B)(1) which would be for ungrounded systems.
Philips, Nathan
FR1203 – 250.4(A)(1) Two issues: First, the panel statement is not correctly stated. This section is for grounded systems, the panel statement is for the
ungrounded section. Second the version of the standard referenced is the 2017 Edition. Question arises as to the validity of using that date. It will be
published prior to the publication of the NEC, but is not yet published. Also note identical informational note and reference accepted as FR 1204 by the
committee did not show up in TerraView. The panel statement in TerraView for FR 1203 should be used for FR 1204 250.4(B)(1) which would be for
ungrounded systems.
Porter, Christine T.
FR1203 – 250.4(A)(1) Two issues: First, the panel statement is not correctly stated. This section is for grounded systems, the panel statement is for the
ungrounded section. Second the version of the standard referenced is the 2017 Edition. Question arises as to the validity of using that date. It will be
published prior to the publication of the NEC, but is not yet published. Also note identical informational note and reference accepted as FR 1204 by the
committee did not show up in TerraView The panel statement in TerraView for 250.4(B)(1) which would be for ungrounded systems. FR1204 – 250.4(B)(1)
Does not show up in TerraView. It is an identical informational note, applicable to ungrounded systems. Same issue with the date of the standard NFPA 780
Simmons, Phil
FR-1204 is missing from the NFPA ballot. It adds an Informational Note to 250.4(B)(1). Please insert it as it was accepted by CMP-5 at its meeting.
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First Revision No. 1205-NFPA 70-2015 [ Section No. 250.6(B) ]
(B) Alterations to Stop Objectionable Current.
If the use of multiple grounding connections results in objectionable current, one or more of the following alterations shall be permitted to be
made, provided that the and the requirements of 250.4(A)(5) or (B)(4) are met: , one or more of the following alterations shall be permitted:
(1) Discontinue one or more but not all of such grounding connections.
(2) Change the locations of the grounding connections.
(3) Interrupt the continuity of the conductor or conductive path causing the objectionable current.
(4) Take other suitable remedial and approved action.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 16:33:25 EST 2015
Committee Statement
Committee Statement: The change is made to comply with the NEC Style Manual and improve clarity.
Response Message:
Public Input No. 3469-NFPA 70-2014 [Section No. 250.6(B)]
Ballot Results
240 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
15 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
FR 1236 – 250.122(B) There seems to be a sense that the words should be “shall be at least in the same proportion” and not shall be in the same
proportion. This is directly from Chuck and is clear enough that I did not reformat CMP-5 Task Group 4 Review The following are noted from the review of
the final approved template work at the First Revision meeting and the final Terra View document markup. 1) FR 1217 for section 250.52(A)(4) – good 2)
FR 1219 for section 250.30(A)(4), (5), (6) a) (4) - Missed the word “system” between ‘electrode’ and ‘shall’ b) (4) - In the exception, did not show strike out
of “No. 2 to (1) and (2)” that is from 2014 Code text. c) (4) - The text is correct as passed by the panel but the legislative text is not correct in what was
deleted and what was added to be clear on the exact changes. d) (5) – The additional words “or as permitted in 250.68(C)(1) and (2)” are not showing in
Terra View. e) (6) – The water pipe got added but not as the panel did and the whole aspect of the metal frame of the building got deleted where the panel’s
action has both inclusive. Terra reads as “The metal frame of the building or structure A metal water pipe that complies with 250.68(C)(2) 250.68(C)
(2)250.52(A)(2) or is connected to the grounding electrode system by a conductor that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum.”
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Negative with Comment
Sasso, Nick
The panel is using permissive language, "one or more of the following alterations shall be permitted..." If there is objectionable current, then one of the
following (1, 2, 3, or 4) NEEDS to happen in order to abate the objectionable current. In reality, the new language gives the inspector no authority to order
the correction as it is merely permissive language, see 90.5(B). This should be rewritten with mandatory language, in order to facilitate the Enforcer's
corrections.
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First Revision No. 1207-NFPA 70-2015 [ Section No. 250.21(A) ]
(A) General.
The following ac systems of 50 volts to 1000 volts shall be permitted to be grounded but shall not be required to be grounded:
(1) Electrical systems used exclusively to supply industrial electric furnaces for melting, refining, tempering, and the like
(2) Separately derived systems used exclusively for rectifiers that supply only adjustable-speed industrial drives
(3) Separately derived systems supplied by transformers that have a primary voltage rating of 1000 volts or less, provided that if all the
following conditions are met:
a.
The system is used exclusively for control circuits.
b.
The conditions of maintenance and supervision ensure that only qualified persons service the installation.
c.
Continuity of control power is required.
(4) Other systems that are not required to be grounded in accordance with the requirements of 250.20(B)
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 11:16:18 EST 2015
Committee Statement
Committee Statement: The change is made to improve the wording in this section but leave the third level subdivisions as a, b and c.
Response Message:
Public Input No. 3470-NFPA 70-2014 [Section No. 250.21(A)]
Ballot Results
242 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
This should read as follows with legislative text: “The A metal water pipe that complies with 250.52(A)(2) 260.68(C)(1) or the metal structural frame of a
building or structure that complies with 250.52(A)(2)250.68(C)(2) or connected to the grounding electrode system by a conductor that shall not be smaller
than 3/0 AWG copper or 250 kcmil aluminum.” f) (6)(c)(2) - The terms “thick” and “wide” were omitted from the millimeter dimensions. The term “thick” was
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omitted after “1/4 in.” in the parenthesis’s part. The word “also” was omitted between “shall” and “comply” 3) FR 1220 for section 250.52(B)(3) – This was
proposed for 250.52(A)(8) and the panel action moved with revised text to 250.52(B). What is in Terra is: 250.52(A)(8) Other Local Metal Underground
Systems or Structures. Other local metal underground systems or structures such s piping systems, underground tanks, and underground metal well
casings that are not bonded to a metal water pipe. The structures and structural reinforcing steel described at 680.26(B)(1) and (B)(2) shall not be
considered as a grounding electrode described by this section. The correct text should be in section 250.52(B) as new list item (3) as follows: (3) The
structures and structural reinforcing steel described in 680.26(B)(1 and (B)(2). 4) FR 1221 for section 250.53(F) is good 5) FR 1222 for section 250.64(A) a)
The text “or where subject to corrosive conditions” is struck out and the panel rejected that proposed change and it should not be struck out. 6) Fr 1223 for
section 250.64(B) (1) a) The beginning should show the “A 4” as stuck out and that is missing. b) The text “shall be protected if exposed to physical
damage.” Should have been struck out and was not, sentence now does not make sense are revised. c) Remainder of text works but legislative text as
revised by the panel is different i. (2)
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First Revision No. 1208-NFPA 70-2015 [ Section No. 250.22 ]
250.22 Circuits Not to Be Grounded.
The following circuits shall not be grounded:
(1) Circuits for electric cranes operating over combustible fibers in Class III locations, as provided in 503.155
(2) Circuits in health care facilities as provided in 517.61 a nd 517.160
(3) Circuits for equipment within electrolytic cell working zone as provided in Article 668
(4) Secondary circuits of lighting systems as provided in 411.6(A)
(5) Secondary circuits of lighting systems as provided in 680.23(A)(2)
(6) Class 2 load side circuits for low-voltage suspended ceiling power distribution systems as provided in 393.60(B)
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 11:21:15 EST 2015
Committee Statement
Committee Statement: The change is made to align with 393.60
Response Message:
Public Input No. 1444-NFPA 70-2014 [Section No. 250.22]
Ballot Results
244 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
15 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
d) Missed the underlines for the parentheses marks for “(RMC)” e) The added requirement for PVC to be the “XW” type was missed - should read as
“…rigid polyvinyl chloride conduit (PVC), XW-type”… f) Missed the added requirement for RTRC to be XW type. Should read reinforced thermosetting resin
conduit (RTRC-XW)…” g) Missed the underline for the parentheses marks for “(EMT)” i. (3) h) The RMC had the parentheses marks deleted but not struck
in Terra i) The RTRC conduit was to be the XW type and should show as “…RTRC-XW…” j) The parentheses marks for the EMT were to be deleted but
were missed. i. (4) k) There is an extra “the” added in to the text between “with” and “earth”. 7. FR 1224 fir section 250.64(D) – good 8. FR 1225 for section
250.64(E)(1) – good 9. FR 1226 for section 250.64(F) – good 10. FR 1227 for section 250.66 – (A) a. “Where” was to be changed to “If” b. After the word
“conductor” the words “or bonding jumper” should have been added as new text. (B) c. “Where” was to be changed to “If” d. After the word “conductor” the
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words “or bonding jumper” should have been added as new text. e. The comma after 250.52(A)((3) should be shown as deleted (C) f. “Where” was to be
changed to “If” g. After the word “conductor” the words “or bonding jumper” should have been added as new text. h. The comma after 250.52(A)((3) should
be shown as deleted 11. FR 1228 for section 250.68)C) a) The words “shall be” were incorrectly inserted between “piping” and “located”. This is to be
statement for where a connection is made, as written the water pipe is now located within five feet of the entry to the building. 12. FR 1229 for section
250.118(5) – good 13. FR 1230 for section 250.119 – good 14. FR 1240
Mello, Charles F.
The text shown is incorrect in the order of words. The text should read: (6) Class 2 load side circuits for suspended ceiling low-voltage power grid
distribution systems as provided in 393.60(B)" This is the correct text as stated in 393.60(B) which the panel used for consistency.
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First Revision No. 1232-NFPA 70-2015 [ Section No. 250.24(C) [Excluding any Sub-Sections] ]
Where an ac system operating at 1000 2000 volts or less is grounded at any point, the grounded conductor(s) shall be routed with the
ungrounded conductors to each service disconnecting means and shall be connected to each disconnecting means grounded conductor(s)
terminal or bus. A main bonding jumper shall connect the grounded conductor(s) to each service disconnecting means enclosure. The grounded
conductor(s) shall be installed in accordance with 250.24(C)(1) through 250.24(C)(4) .
Exception: Where two or more service disconnecting means are located in a single assembly listed for use as service equipment, it shall be
permitted to connect the grounded conductor(s) to the assembly common grounded conductor(s) terminal or bus. The assembly shall include a
main bonding jumper for connecting the grounded conductor(s) to the assembly enclosure.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:31:39 EST 2015
Committee Statement
Committee
Statement:
This revision is necessary for up to 2000V to avoid a gap in voltage. The change from 1000 to 2000 Volts in this section does not affect
the requirements for grounding and bonding and will allow future equipment expansion into this voltage range, such as PV and wind
systems.
Response
Message:
Public Input No. 3089-NFPA 70-2014 [Section No. 250.24(C) [Excluding any Sub-Sections]]
Ballot Results
246 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
12 Affirmative All
2 Affirmative with Comments
3 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Brett, Jr., Martin J.
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Bowmer, Trevor N.
Increasing these voltage levels does not change the grounding requirements of Article 250. However, making these changes in Article 250 without
concomitant and correlating changes in other parts of the code will lead to confusion and inconsistency.
Edwards, Timothy
See attached errata
Negative with Comment
Dobrowsky, Paul
The voltage level should not be increased to 2000 to be consistent with other code making panels actions to have the threshold be 1000. There is no gap
in voltage levels in Article 250, it is up to 1000 volts and over 1000 volts.
O'Meara, Mike
The voltage level should remain at 1000 volts. Making this change may allow additional items to comply with low voltage requirements without
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substantiation and may create safety issues. Although the change in voltage does not directly impact the grounding requirements in Article 250, it creates
inconsistency with other Articles throughout the code, as other CMP’s did not accept these Public Inputs
Sasso, Nick
There is an undercurrent on this panel to replace 1000 volts with "2000 volts." In my opinion, this is arbitrary and being attempted to serve some other
purpose. Article 490 has a definition of high voltage (more than 1000 volts) therefore it is sensible and practical for Article 250 to remain consistent with the
NEC definition in Article 490. The NEC document needs to be consistent throughout. It is also important to remember that other regulations, such as
OSHA, use 1000 volts when the term "high voltage" is referenced. Furthermore, OSHA cooperative programs state that for "OVER 1000 VOLTS" electrical
burn wounds possess special clinical characteristics. In addition, for "OVER 1000 VOLTS" there is a risk of wounds which can lead to amputation. The
distinction is "over 1000" not "2000 volts."
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First Revision No. 1209-NFPA 70-2015 [ Section No. 250.24(C)(1) ]
(1) Sizing for a Single Raceway or Cable .
The grounded conductor shall not be smaller than specified in Table 250.102(C)(1) .
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 11:45:54 EST 2015
Committee Statement
Committee Statement: The grounded conductor size needs to be consistent for raceways and ables.
Response Message:
Public Input No. 3916-NFPA 70-2014 [Section No. 250.24(C)(1)]
Ballot Results
248 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
6 Affirmative All
11 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Dobrowsky, Paul
Helfrich, William J.
Mello, Charles F.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Beckstrand, Gary A.
The Panel Statement should be shown as, "The grounded conductor size needs to be consistent for raceways and cables."
Bowmer, Trevor N.
The word "Cable" is not underlined in Terraview and it needs to be underlined to show it as newly added. Note also there is also a misspelled word (ables)
in panel statement, it should be “cables”
Brett, Jr., Martin J.
250.24(C)(1) The words "or Cable" are not underlined, they need to be underlined. Note also misspelled word "ables" in panel statement, it should be
“cables”
Edwards, Timothy
See attached errata
Harding, G. Scott
250.24(C)(1) The word Cable is not underlined it needs to be underlined. Note also misspelled word (ables) in panel statement, it should be “cables”
Harding, Joseph
FR1209 – 250.24(C)(1) The word Cable is not underlined it needs to be underlined. Note also misspelled word (ables) in panel statement, it should be
“cables”
Mohla, Daleep C.
The word Cable is not underlined it needs to be underlined. Note also misspelled word (ables) in panel statement, it should be “cables”
O'Meara, Mike
The word Cable is not underlined it needs to be underlined. Note also misspelled word (ables) in panel statement, it should be “cables”
Palmieri, Charles J.
The legislative underline of the new term “Cables” is not indicated in the title 250.24(C)(1) The word Cable is not underlined it needs to be underlined. Note
also misspelled word (ables) in panel statement, it should be “cables”
Philips, Nathan
FR1209 – 250.24(C)(1) The word Cable is not underlined it needs to be underlined. Note also misspelled word (ables) in panel statement, it should be
“cables”
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Porter, Christine T.
FR1209 – 250.24(C)(1) The word Cable is not underlined it needs to be underlined. Note also misspelled word (ables) in panel statement, it should be
“cables”
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First Revision No. 1210-NFPA 70-2015 [ Section No. 250.24(C)(2) ]
(2) Parallel Conductors in Two or More Raceways or Cables .
If the ungrounded service-entrance conductors are installed in parallel in two or more raceways or cables , the grounded conductor shall also be
installed in parallel. The size of the grounded conductor in each raceway or cable shall be based on the total circular mil area of the parallel
ungrounded conductors in the raceway or cable , as indicated in 250.24(C)(1) , but not smaller than 1/0 AWG.
Informational Note: See 310.10(H) for grounded conductors connected in parallel.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 11:48:17 EST 2015
Committee Statement
Committee Statement: The grounded conductor size needs to be consistent for raceways and cables.
Response Message:
Public Input No. 3920-NFPA 70-2014 [Section No. 250.24(C)(2)]
Ballot Results
250 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
7 Affirmative All
10 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Dobrowsky, Paul
Helfrich, William J.
Mello, Charles F.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Bowmer, Trevor N.
The word "or Cable is not underlined in Terraview and it needs to be underlined to show it as newly added.
Brett, Jr., Martin J.
250.24(C)(2) The words “or Cable” are not underlined in the title, they need to be underlined
Edwards, Timothy
See attached errata
Harding, G. Scott
250.24(C)(2) The words “or Cable” are not underlined they need to be underlined
Harding, Joseph
FR1210 – 250.24(C)(2) The words “or Cable” are not underlined they need to be underlined
Mohla, Daleep C.
The words “or Cable” are not underlined they need to be underlined
O'Meara, Mike
The words “or Cable” are not underlined they need to be underlined
Palmieri, Charles J.
The legislative underline of the new term “Cables” is not indicated in the title 250.24(C)(2) The words “or Cable” are not underlined they need to be
underlined
Philips, Nathan
The words “or Cable” are need to be underlined
Porter, Christine T.
FR1210 – 250.24(C)(2) The words “or Cable” are not underlined they need to be underlined
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First Revision No. 1213-NFPA 70-2015 [ Section No. 250.30(A)(1) ]
(1) System Bonding Jumper.
An unspliced system bonding jumper shall comply with 250.28(A) through (D). This connection shall be made at any single point on the
separately derived system from the source to the first system disconnecting means or overcurrent device, or it shall be made at the source of a
separately derived system that has no disconnecting means or overcurrent devices, in accordance with 250.30(A)(1)(a) or (b). The system
bonding jumper shall remain within the enclosure where it originates. If the source is located outside the building or structure supplied, a system
bonding jumper shall be installed at the grounding electrode connection in compliance with 250.30(C) .
Exception No. 1: For systems installed in accordance with 450.6 , a single system bonding jumper connection to the tie point of the grounded
circuit conductors from each power source shall be permitted.
Exception No. 2: If a building or structure is supplied by a feeder from an outdoor transformer separately derived system , a system bonding
jumper at both the source and the first disconnecting means shall be permitted if doing so does not establish a parallel path for the grounded
conductor. If a grounded conductor is used in this manner, it shall not be smaller than the size specified for the system bonding jumper but shall
not be required to be larger than the ungrounded conductor(s). For the purposes of this exception, connection through the earth shall not be
considered as providing a parallel path.
Exception No. 3: The size of the system bonding jumper for a system that supplies a Class 1, Class 2, or Class 3 circuit, and is derived from a
transformer rated not more than 1000 volt-amperes, shall not be smaller than the derived ungrounded conductors and shall not be smaller than
14 AWG copper or 12 AWG aluminum.
(a) Installed at the Source. The system bonding jumper shall connect the grounded conductor to the supply-side bonding jumper and the
normally non–current-carrying metal enclosure.
(b) Installed at the First Disconnecting Means. The system bonding jumper shall connect the grounded conductor to the supply-side bonding
jumper, the disconnecting means enclosure, and the equipment grounding conductor(s).
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 12:29:04 EST 2015
Committee Statement
Committee Statement: Transformers are not the only type of separately derived system
Response Message:
Public Input No. 3283-NFPA 70-2014 [Section No. 250.30(A)(1)]
Ballot Results
252 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
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Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 1219-NFPA 70-2015 [ Section No. 250.30(A)(4) ]
(4) Grounding Electrode.
The building or structure grounding electrode shall be used as the grounding electrode for the separately derived system. If located outdoors,
the grounding electrode shall be in accordance with 250.30(C) . as near as practicable to, and preferably in the same area as, the grounding
electrode conductor connection to the system. The grounding electrode shall be the nearest of one of the following:
(0) Metal water pipe grounding electrode as specified in 250.52(A)(1)
(0) Structural metal grounding electrode as specified in 250.52(A)(2)
Exception No. 1: Any of the other electrodes identified in 250.52(A) shall be used if the electrodes specified by 250.30(A)(4) are not
available.
Exception: to (1) and (2): If a separately derived system originates in listed equipment suitable equipment for use as service equipment, the
grounding electrode used for the service or feeder equipment shall be permitted as the grounding electrode for the separately derived system.
that is listed and labeled as suitable for use as service equipment, the grounding electrode used for the service or feeder equipment shall be
permitted to be used as the grounding electrode for the separately derived system.
Informational Note No. 1: See 250.104(D) for bonding requirements for interior metal water piping in the area served by separately
derived systems.
Informational Note No. 2: See 250.50 and 250.58 for requirements for bonding all electrodes together if located at the same building or
structure.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 13:31:02 EST 2015
Committee Statement
Committee
Statement:
These revisions better describe a grounding electrode and include the conductors that are suitable to extend the grounding electrode
connection.
The revisions to this section recognize the water pipe and the structural metal frame as covered in 250.68(C) that are being used are not
grounding electrodes but rather are conductors extending the grounding electrode connection.
The revised text allowed exception No. 1 to be deleted as those options are covered by the referenced sections. Editorial changes were
made to 250.30(A)(4), former Exception No. 2 to make it technically correct.
Response
Message:
Ballot Results
254 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
6 Affirmative All
11 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Dobrowsky, Paul
Helfrich, William J.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Bowmer, Trevor N.
FR-1219 is missing several items accepted during the CMP 5 meeting. In the revised Terraview 250.30(A)(4), the text is correct as passed by the panel but
the legislative text is not correct in what was deleted and what was added to be clear on the exact changes. Item #(1) The word “system” needs to added
between "electrode" and "shall" Item # (2) In the exception, Terraview did not show the strike out of “No. 2 to (1) and (2)” that is from 2014 Code text.
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Brett, Jr., Martin J.
FR 1219 for section 250.30(A)(4), (5), (6) ****************************** 25030(A)(4) Missed the word “system” between ‘electrode’ and ‘shall’ In the
exception, did not show strike out of “No. 2 to (1) and (2)” that is from 2014 Code text. The text is correct as passed by the panel but the legislative text is
not correct in what was deleted and what was added to be clear on the exact changes. ******************************************* 250.30(A(5) The additional
words “or as permitted in 250.68(C)(1) and (2)” are not showing in Terra View. 250.30(A)(6) The water pipe got added but not as the panel did and the
whole aspect of the metal frame of the building got deleted where the panel’s action has both inclusive. Terra reads as “The metal frame of the building or
structure A metal water pipe that complies with 250.68(C)(2) 250.68(C)(2)250.52(A)(2) or is connected to the grounding electrode system by a conductor
that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum.” This should read as follows with legislative text: “The A metal water pipe that
complies with 250.52(A)(2) 260.68(C)(1) or the metal structural frame of a building or structure that complies with 250.52(A)(2)250.68(C)(2) or connected to
the grounding electrode system by a conductor that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum.”
****************************************** 250.30(A)(6) c)(2) - The terms “thick” and “wide” were omitted from the millimeter dimensions. The term “thick” was
omitted after “1/4 in.” in the parenthesis’s part. The word “also” was omitted between “shall” and “comply”
Edwards, Timothy
See attached errata
Harding, G. Scott
(4) - Missed the word “system” between ‘electrode’ and ‘shall’ (4) - In the exception, did not show strike out of “No. 2 to (1) and (2)” that is from 2014 Code
text. (4) - The text is correct as passed by the panel but the legislative text is not correct in what was deleted and what was added to be clear on the exact
changes. (5) – The additional words “or as permitted in 250.68(C)(1) and (2)” are not showing in Terra View. (6) – The water pipe got added but not as the
panel did and the whole aspect of the metal frame of the building got deleted where the panel’s action has both inclusive. Terra reads as “A metal water
pipe that complies with 250.68(C)(2) or is connected to the grounding electrode system by a conductor that shall not be smaller than 3/0 AWG copper or
250 kcmil aluminum.” This should read as follows: “The metal water pipe that complies with 260.68(C)(1) or the metal structural frame of a building or
structure that complies with 250.68(C)(2) or connected to the grounding electrode system by a conductor not smaller than 3/0 AWG copper or 250 kcmil
aluminum.” (6)(c)(2) - The terms “thick” and “wide” were omitted from the millimeter dimensions. The term “thick” was omitted after “1/4 in.” in the
parenthesis’s part. The word “also” was omitted between “shall” and “comply”
Harding, Joseph
FR 1219 for section 250.30(A)(4), (5), (6) a) (4) - Missed the word “system” between ‘electrode’ and ‘shall’ b) (4) - In the exception, did not show strike out
of “No. 2 to (1) and (2)” that is from 2014 Code text. c) (4) - The text is correct as passed by the panel but the legislative text is not correct in what was
deleted and what was added to be clear on the exact changes. d) (5) – The additional words “or as permitted in 250.68(C)(1) and (2)” are not showing in
Terra View. e) (6) – The water pipe got added but not as the panel did and the whole aspect of the metal frame of the building got deleted where the panel’s
action has both inclusive. Terra reads as “The metal frame of the building or structure A metal water pipe that complies with 250.68(C)(2) 250.68(C)
(2)250.52(A)(2) or is connected to the grounding electrode system by a conductor that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum.”
This should read as follows with legislative text: “The A metal water pipe that complies with 250.52(A)(2) 260.68(C)(1) or the metal structural frame of a
building or structure that complies with 250.52(A)(2)250.68(C)(2) or connected to the grounding electrode system by a conductor that shall not be smaller
than 3/0 AWG copper or 250 kcmil aluminum.” f) (6)(c)(2) - The terms “thick” and “wide” were omitted from the millimeter dimensions. The term “thick” was
omitted after “1/4 in.” in the parenthesis’s part. The word “also” was omitted between “shall” and “comply”
Mello, Charles F.
The revised text should read as: (4) Grounding Electrode. The building or structure grounding electrode system shall be used as the grounding electrode
for the separately derived system. If located outdoors, the grounding electrode shall be in accordance with 250.30(C). Exception: If a separately derived
system originates in equipment that is listed and labeled as suitable for use as service equipment, the grounding electrode used for the service or feeder
equipment shall be permitted to be used as the grounding electrode for the separately derived system. Informational Note No. 1: See 250.104(D) for
bonding requirements for interior metal water piping in the area served by separately derived systems. Informational Note No. 2: See 250.50 and 250.58 for
requirements for bonding all electrodes together if located at the same building or structure.
Mohla, Daleep C.
a) (4) - Missed the word “system” between ‘electrode’ and ‘shall’ b) (4) - In the exception, did not show strike out of “No. 2 to (1) and (2)” that is from 2014
Code text. c) (4) - The text is correct as passed by the panel but the legislative text is not correct in what was deleted and what was added to be clear on
the exact changes. d) (5) – The additional words “or as permitted in 250.68(C)(1) and (2)” are not showing in Terra View. e) (6) – The water pipe got added
but not as the panel did and the whole aspect of the metal frame of the building got deleted where the panel’s action has both inclusive. Terra reads as
“The metal frame of the building or structure A metal water pipe that complies with 250.68(C)(2) 250.68(C)(2)250.52(A)(2) or is connected to the grounding
electrode system by a conductor that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum.” This should read as follows with legislative text:
The A metal water pipe that complies with 250.52(A)(2) 260.68(C)(1) or the metal structural frame of a building or structure that complies with 250.52(A)
(2)250.68(C)(2) or connected to the grounding electrode system by a conductor that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum.” f)
(6)(c)(2) - The terms “thick” and “wide” were omitted from the millimeter dimensions. The term “thick” was omitted after “1/4 in.” in the parenthesis’s part.
The word “also” was omitted between “shall” and “comply
O'Meara, Mike
for section 250.30(A)(4), (5), (6) a) (4) - Missed the word “system” between ‘electrode’ and ‘shall’ b) (4) - In the exception, did not show strike out of “No. 2
to (1) and (2)” that is from 2014 Code text. c) (4) - The text is correct as passed by the panel but the legislative text is not correct in what was deleted and
what was added to be clear on the exact changes. d) (5) – The additional words “or as permitted in 250.68(C)(1) and (2)” are not showing in Terra View. e)
(6) – The water pipe got added but not as the panel did and the whole aspect of the metal frame of the building got deleted where the panel’s action has
both inclusive. Terra reads as “The metal frame of the building or structure A metal water pipe that complies with 250.68(C)(2) 250.68(C)(2)250.52(A)(2) or
is connected to the grounding electrode system by a conductor that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum.” This should read as
follows with legislative text: “The A metal water pipe that complies with 250.52(A)(2) 260.68(C)(1) or the metal structural frame of a building or structure that
complies with 250.52(A)(2)250.68(C)(2) or connected to the grounding electrode system by a conductor that shall not be smaller than 3/0 AWG copper or
250 kcmil aluminum.” f) (6)(c)(2) - The terms “thick” and “wide” were omitted from the millimeter dimensions. The term “thick” was omitted after “1/4 in.” in
the parenthesis’s part. The word “also” was omitted between “shall” and “comply”
Palmieri, Charles J.
1) FR 1219 for section 250.30(A)(4), (5), (6) a) (4) - Missed the word “system” between ‘electrode’ and ‘shall’ b) (4) - In the exception, did not show strike
out of “No. 2 to (1) and (2)” that is from 2014 Code text. c) (4) - The text is correct as passed by the panel but the legislative text is not correct in what was
deleted and what was added to be clear on the exact changes. d) (5) – The additional words “or as permitted in 250.68(C)(1) and (2)” are not showing in
Terra View. e) (6) – The water pipe got added but not as the panel did and the whole aspect of the metal frame of the building got deleted where the panel’s
action has both inclusive. Terra reads as “The metal frame of the building or structure A metal water pipe that complies with 250.68(C)(2) 250.68(C)
(2)250.52(A)(2) or is connected to the grounding electrode system by a conductor that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum.”
This should read as follows with legislative text: “The A metal water pipe that complies with 250.52(A)(2) 260.68(C)(1) or the metal structural frame of a
building or structure that complies with 250.52(A)(2)250.68(C)(2) or connected to the grounding electrode system by a conductor that shall not be smaller
than 3/0 AWG copper or 250 kcmil aluminum.” f) (6)(c)(2) - The terms “thick” and “wide” were omitted from the millimeter dimensions. The term “thick” was
omitted after “1/4 in.” in the parenthesis’s part. The word “also” was omitted between “shall” and “comply”
Philips, Nathan
250.30(A)(4), (5), (6): a) (4) - Missed the word “system” between ‘electrode’ and ‘shall’ b) (4) - In the exception, did not show strike out of “No. 2 to (1) and
(2)” that is from 2014 Code text. c) (4) - The text is correct as passed by the panel but the legislative text is not correct in what was deleted and what was
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added to be clear on the exact changes. d) (5) – The additional words “or as permitted in 250.68(C)(1) and (2)” are not showing in Terra View. e) (6) – The
water pipe got added but not as the panel did and the whole aspect of the metal frame of the building got deleted where the panel’s action has both
inclusive. Terra reads as “The metal frame of the building or structure A metal water pipe that complies with 250.68(C)(2) 250.68(C)(2)250.52(A)(2) or is
connected to the grounding electrode system by a conductor that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum.” This should read as
follows with legislative text: “The A metal water pipe that complies with 250.52(A)(2) 260.68(C)(1) or the metal structural frame of a building or structure that
complies with 250.52(A)(2)250.68(C)(2) or connected to the grounding electrode system by a conductor that shall not be smaller than 3/0 AWG copper or
250 kcmil aluminum.” f) (6)(c)(2) - The terms “thick” and “wide” were omitted from the millimeter dimensions. The term “thick” was omitted after “1/4 in.” in
the parenthesis’s part. The word “also” was omitted between “shall” and “comply”
Porter, Christine T.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP5 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP5 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition
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First Revision No. 1214-NFPA 70-2015 [ Section No. 250.30(A)(5) ]
(5) Grounding Electrode Conductor, Single Separately Derived System.
A grounding electrode conductor for a single separately derived system shall be sized in accordance with 250.66 for the derived ungrounded
conductors. It shall be used to connect the grounded conductor of the derived system to the grounding electrode as specified in accordance with
250.30(A)(4) . This connection shall be made at the same point on the separately derived system where the system bonding jumper is connected.
Exception No. 1: If the system bonding jumper specified in 250.30(A)(1) is a wire or busbar, it shall be permitted to connect the grounding
electrode conductor to the equipment grounding terminal, bar, or bus, provided if the equipment grounding terminal, bar, or bus is of sufficient
size for the separately derived system.
Exception No. 2: If the source of a separately derived system is located within equipment listed and identified as suitable for use as service
equipment, the grounding electrode conductor from the service or feeder equipment to the grounding electrode shall be permitted as the
grounding electrode conductor for the separately derived system, provided that if the grounding electrode conductor is of sufficient size for the
separately derived system. If the equipment grounding bus internal to the equipment is not smaller than the required grounding electrode
conductor for the separately derived system, the grounding electrode connection for the separately derived system shall be permitted to be
made to the bus.
Exception No. 3: A grounding electrode conductor shall not be required for a system that supplies a Class 1, Class 2, or Class 3 circuit and is
derived from a transformer rated not more than 1000 volt-amperes, provided the grounded conductor is bonded to the transformer frame or
enclosure by a jumper sized in accordance with 250.30(A)(1) , Exception No. 3, and the transformer frame or enclosure is grounded by one of
the means specified in 250.134 .
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 12:30:16 EST 2015
Committee Statement
Committee Statement: The change is to comply with the NEC Style Manual
Response Message:
Public Input No. 3471-NFPA 70-2014 [Section No. 250.30(A)(5)]
Ballot Results
257 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
10 Affirmative All
7 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, G. Scott
Helfrich, William J.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Steinman, Gregory J.
Affirmative with Comment
Beckstrand, Gary A.
Excluding the revisions in the two exceptions, the NEC text should appear as follows, “A grounding electrode conductor for a single separately derived
system shall be sized in accordance with 250.66 for the derived ungrounded conductors. It shall be used to connect the grounded conductor of the derived
system to the grounding electrode as specified in accordance with 250.30(A)(4), or as permitted in 250.68(C)(1) and (2). This connection shall be made at
the same point on the separately derived system where the system bonding jumper is connected.” The text “or as permitted in 250.68(C)(1) and (2).” is
missing in the FR on the Ballot. The Panel Statement should also include, “The revisions to this section recognize the water pipe and the structural metal
frame as covered in 250.68(C) that are being used are not grounding electrodes but rather are conductors extending the grounding electrode connection."
Bowmer, Trevor N.
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This FR-1214 is different from that discussed and accepted at the CMP-5 meeting. The agreed text during the CMP-5 meeting for the first paragraph was
as follows (Note that the part in quotes is missing in the FR) - A grounding electrode conductor for a single separately derived system shall be sized in
accordance with 250.66 for the derived ungrounded conductors. It shall be used to connect the grounded conductor of the derived system to the grounding
electrode as specified in accordance with 250.30(A)(4), "or as permitted in 250.68(C)(1) and (2)". This connection shall be made at the same point on the
separately derived system where the system bonding jumper is connected.
Edwards, Timothy
See attached errata
Harding, Joseph
This FR was changed compared to what we discussed at the CMP-5 meeting. The agreed text during the CMP-5 meeting for the first paragraph was as
follows (the part in quotes is missing in the FR): A grounding electrode conductor for a single separately derived system shall be sized in accordance with
250.66 for the derived ungrounded conductors. It shall be used to connect the grounded conductor of the derived system to the grounding electrode as
specified in accordance with 250.30(A)(4), "or as permitted in 250.68(C)(1) and (2)". This connection shall be made at the same point on the separately
derived system where the system bonding jumper is connected.
Mello, Charles F.
The revised text should read as: (5) Grounding Electrode Conductor, Single Separately Derived System. A grounding electrode conductor for a single
separately derived system shall be sized in accordance with 250.66 for the derived ungrounded conductors. It shall be used to connect the grounded
conductor of the derived system to the grounding electrode in accordance with 250.30(A)(4), or as permitted in 250.68(C)(1) and (2). This connection shall
be made at the same point on the separately derived system where the system bonding jumper is connected. Exception No. 1: If the system bonding
jumper specified in 250.30(A)(1) is a wire or busbar, it shall be permitted to connect the grounding electrode conductor to the equipment grounding
terminal, bar, or bus, if the equipment grounding terminal, bar, or bus is of suff?cient size for the separately derived system. Exception No. 2: If the source
of a separately derived system is located within equipment listed and identified as suitable for use as service equipment, the grounding electrode conductor
from the service or feeder equipment to the grounding electrode shall be permitted as the grounding electrode conductor for the separately derived system,
if the grounding electrode conductor is of suff?cient size for the separately derived system. If the equipment grounding bus internal to the equipment is not
smaller than the required grounding electrode conductor for the separately derived system, the grounding electrode connection for the separately derived
system shall be permitted to be made to the bus. Exception No. 3: A grounding electrode conductor shall not be required for a system that supplies a Class
1, Class 2, or Class 3 circuit and is derived from a transformer rated not more than 1000 volt-amperes, provided the grounded conductor is bonded to the
transformer frame or enclosure by a jumper sized in accordance with 250.30(A)(1), Exception No. 3, and the transformer frame or enclosure is grounded by
one of the means specified in 250.134.
Sasso, Nick
The panel has approved multiple changes in Article 250 citing the reason, "to comply with style manual." "AS SPECIFIED" is not in 3.3.4 of the style
manual, and can be allowed. "PROVIDED" is not in 3.3.4 of the style manual, and can be allowed. In addition, the terms contained in Table 3.2.1 are to be
reviewed IN CONTEXT, and, if the resulting requirement is unenforceable or vague, the term cannot be used. The 2014 language was not unenforceable or
vague.
Simmons, Phil
CDA votes to accept this PI provided that the text provided by NFPA in the ballot is corrected to that which was accepted by CMP-5 at the Panel meeting.
The sentence in the opening paragraph should read as follows: “A grounding electrode conductor for a single separately derived system shall be sized in
accordance with 250.66 for the derived ungrounded conductors. It shall be used to connect the grounded conductor of the derived system to the grounding
electrode in accordance with 250.30(A)(4), or as permitted in 250.68(C)(1) and (2). This connection shall be made at the same point on the separately
derived system where the system bonding jumper is connected.”
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First Revision No. 1218-NFPA 70-2015 [ Section No. 250.30(A)(6) ]
(6) Grounding Electrode Conductor, Multiple Separately Derived Systems.
A common grounding electrode conductor for multiple separately derived systems shall be permitted. If installed, the common grounding
electrode conductor shall be used to connect the grounded conductor of the separately derived systems to the grounding electrode as specified
in 250.30(A)(4). A grounding electrode conductor tap shall then be installed from each separately derived system to the common grounding
electrode conductor. Each tap conductor shall connect the grounded conductor of the separately derived system to the common grounding
electrode conductor. This connection shall be made at the same point on the separately derived system where the system bonding jumper is
connected.
Exception No. 1: If the system bonding jumper specified in 250.30(A)(1) is a wire or busbar, it shall be permitted to connect the grounding
electrode conductor tap to the equipment grounding terminal, bar, or bus, provided the equipment grounding terminal, bar, or bus is of sufficient
size for the separately derived system.
Exception No. 2: A grounding electrode conductor shall not be required for a system that supplies a Class 1, Class 2, or Class 3 circuit and is
derived from a transformer rated not more than 1000 volt-amperes, provided the system grounded conductor is bonded to the transformer
frame or enclosure by a jumper sized in accordance with 250.30(A)(1), Exception No. 3, and the transformer frame or enclosure is grounded by
one of the means specified in 250.134 .
(a) Common Grounding Electrode Conductor. The common grounding electrode conductor shall be permitted to be one of the following:
(1) A conductor of the wire type not smaller than 3/0 AWG copper or 250 kcmil aluminum
(2) The metal frame of the building or structure A metal water pipe that complies with 250.68(C)(2) 250.68(C)(2)250.52(A)(2) or is
connected to the grounding electrode system by a conductor that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum
(b) Tap Conductor Size. Each tap conductor shall be sized in accordance with 250.66 based on the derived ungrounded conductors of the
separately derived system it serves.
Exception: If the source of a separately derived system is located within equipment listed and labeled and identified as suitable for use as
service equipment, the grounding electrode conductor from the service or feeder equipment to the grounding electrode shall be permitted
as the grounding electrode conductor for the separately derived system, provided that if the grounding electrode conductor is of sufficient
size for the separately derived system. If the equipment grounding bus internal to the equipment is not smaller than the required grounding
electrode conductor for the separately derived system, the grounding electrode connection for the separately derived system shall be
permitted to be made to the bus.
(c) Connections. All tap connections to the common grounding electrode conductor shall be made at an accessible location by one of the
following methods:
(1) A connector listed as grounding and bonding equipment.
(2) Listed connections to aluminum or copper busbars not smaller than 6 mm × 50 mm (1⁄4 in. × 2 in. wide ) and of sufficient length to
accommodate the number of terminations necessary for the installation . If aluminum busbars are used, the installation shall comply
with 250.64(A).
(3) The exothermic welding process.
Tap conductors shall be connected to the common grounding electrode conductor in such a manner that the common grounding electrode
conductor remains without a splice or joint.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 13:20:08 EST 2015
Committee Statement
Committee
Statement:
These revisions better describe a grounding electrode and include the conductors that are suitable to extend the grounding electrode
connection.
The revisions to this section recognize the water pipe and the structural metal frame as covered in 250.68(C) that are being used are not
grounding electrodes but rather are conductors extending the grounding electrode connection.
The revised text allowed exception No. 1 to be deleted as those options are covered by the referenced sections. Editorial changes were
made to 250.30(A)(4), former Exception No. 2 to make it technically correct.
Response
Message:
Public Input No. 3472-NFPA 70-2014 [Section No. 250.30(A)(6)]
Ballot Results
259 of 1802
This item has passed ballot
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17 Eligible Voters
0 Not Returned
4 Affirmative All
13 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Dobrowsky, Paul
Helfrich, William J.
Sasso, Nick
Steinman, Gregory J.
Affirmative with Comment
Beckstrand, Gary A.
250.30(A)(6) the word "provided" was not struck out and replaced with the word "if". the word is used in Exception 1.
Bowmer, Trevor N.
FR-1218 is missing several items accepted during the CMP 5 meeting Item #1 - In the revised Terraview for item (2) under 250.30(A)(6)(a), the water pipe
got added but not as the panel intended and the aspect of the metal frame of the building got deleted where the panel’s action was to include both.
Terraview shows item (2) as follows “A metal water pipe that complies with 250.68(C)2) or is connected to the grounding electrode system by a conductor
that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum.” whereas it should read as shown below: “A metal water pipe that complies with
260.68(C)(1, or the metal structural frame of a building or structure that complies with 250.68(C)(2, or connected to the grounding electrode system by a
conductor that shall not be smaller than 3/0 AWG copper or 250 kcmil aluminum.” Item #2 - In the revised Terraview for 250.30(A)(6)(c)(2), the terms “thick”
and “wide” were omitted from the millimeter dimensions. The term “thick” was omitted after “1/4 in.” in the parenthesis’s part. The word “also” was omitted
between “shall” and “comply” Item #3 - The phrase "provided that" in 250.30(6)(b)needs to be retained and not replaced with the word “if” as shown in
Terraview.
Brett, Jr., Martin J.
250.30(A)(6) was incorrectly identified by the submitter, it should have been 250.30(A)(6) (b)Exception. It appears that the submitter wished to only replace
"provided that" with "if" as indicated in his substantiation. ******** Not sure we can correct here but the comma after the last sentence of Exception No. 2
should be a period and line inserted. It was incorrect in the 2014 Code.
Edwards, Timothy
See attached errata
Harding, G. Scott
250.30(A)(6) Task group indicated that the word provided was not struck out and replaced with the word “if”. The word is used in Exception 1, but was also
not changed in the word summary document.
Harding, Joseph
FR1218 – 250.30(A)(6) Task group indication that the word provided was not struck out and replaced with the word “if”. The word is used in Exception 1,
but was also not changed in the word summary document. Not sure what the submitter was looking for here.
Mello, Charles F.
The revisons to 250.30(A)(6)(a), (b), and (c) should read as follows: (a) Common Grounding Electrode Conductor. The common grounding electrode
conductor shall be permitted to be one of the following: (1) A conductor of the wire type not smaller than 3/0 AWG copper or 250 kcmil aluminum (2) A
metal water pipe that complies with 250.68(C)(1) or the metal structural frame of the building or structure that complies with 250.68(C)(2) or connected to
the grounding electrode system by a conductor not smaller than 3/0 AWG copper or 250 kcmil aluminum. (b) Tap Conductor Size. Each tap conductor shall
be sized in accordance with 250.66 based on the derived ungrounded conductors of the separately derived system it serves. Exception: If the source of a
separately derived system is located within equipment listed and labeled and identified as suitable for use as service equipment, the grounding electrode
conductor from the service or feeder equipment to the grounding electrode shall be permitted as the grounding electrode conductor for the separately
derived system, if the grounding electrode conductor is of suff?cient size for the separately derived system. If the equipment grounding bus internal to the
equipment is not smaller than the required grounding electrode conductor for the separately derived system, the grounding electrode connection for the
separately derived system shall be permitted to be made to the bus. (c) Connections. All tap connections to the common grounding electrode conductor
shall be made at an accessible location by one of the following methods: (1) A connector listed as grounding and bonding equipment. (2) Listed
connections to aluminum or copper busbars not smaller than 6 mm thick × 50 mm wide (1?4 in. thick × 2 in. wide) and of sufficient length to accommodate
the number of terminations necessary for the installation. If aluminum busbars are used, the installation shall also comply with 250.64(A). (3) The
exothermic welding process. Tap conductors shall be connected to the common grounding electrode conductor in such a manner that the common
grounding electrode conductor remains without a splice or joint.
Mohla, Daleep C.
Task group indication that the word provided was not struck out and replaced with the word “if”. The word is used in Exception 1, but was also not changed
in the word summary document
O'Meara, Mike
Task group indication that the word provided was not struck out and replaced with the word “if”. The word is used in Exception 1, but was also not changed
in the word summary document. Not sure what the submitter was looking for here.
Palmieri, Charles J.
250.30(A)(6) Task group indication that the word provided was not struck out and replaced with the word “if”. The word is used in Exception 1, but was also
not changed in the word summary document. Not sure what the submitter was looking for here.
Philips, Nathan
250.30(A)(6) Task group indicated that the word provided was not struck out and replaced with the word “if”. The word is used in Exception 1, but was also
not changed in the word summary document.
Porter, Christine T.
FR1218 – 250.30(A)(6) Task group indication that the word provided was not struck out and replaced with the word “if”. The word is used in Exception 1,
but was also not changed in the word summary document. A requirement that all listed equipment be labeled with the listing organization’s mark of
conformity conflicts with the definition of Listed in Article 100, including the Informational Note saying, “Use of the system employed by the listing
organization allows the authority having jurisdiction to identify a listed product.” The definition is not only the NEC definition of Listed, it is an Official NFPA
Definition, including the Informational Note (or an Appendix note in many NFPA standards). It is not for CMP5 to decide to override an official definition. In
addition, it is inappropriate for the NEC Committee to dictate certification practices to listing organizations. By requiring that listed equipment display the
listing organization’s mark, CMP5 would be dictating the business practices of the various listing organizations without a clear statement of need, against
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the advice contained in the Informational Note to the definition
Simmons, Phil
CDA votes to accept this PI provided that the text provided by NFPA in the ballot is corrected to that which was accepted by CMP-5 at the Panel meeting.
The text that requires correction should read as follows: “Exception No. 1: If the system bonding jumper specified in 250.30(A)(1) is a wire or busbar, it shall
be permitted to connect the grounding electrode conductor tap to the equipment grounding terminal, bar, or bus, if the equipment grounding terminal, bar,
or bus is of suff?cient size for the separately derived system.” “Exception No. 2: A grounding electrode conductor shall not be required for a system that
supplies a Class 1, Class 2, or Class 3 circuit and is derived from a transformer rated not more than 1000 volt-amperes, if the system grounded conductor
is bonded to the transformer frame or enclosure by a jumper sized in accordance with 250.30(A)(1), Exception No. 3, and the transformer frame or
enclosure is grounded by one of the means specified in 250.134.” (c)(2) Listed connections to aluminum or copper busbars not smaller than 6 mm thick ×
50 mm wide (¼ in. thick × 2 in. wide) and of sufficient length to accommodate the number of terminations necessary for the installation. If aluminum
busbars are used, the installation shall also comply with 250.64(A). (d) Tap Conductor Size. Each tap conductor shall be sized in accordance with 250.66
based on the derived ungrounded conductors of the separately derived system it serves. Exception: If the source of a separately derived system is located
within equipment listed and identified as suitable for use as service equipment, the grounding electrode conductor from the service or feeder equipment to
the grounding electrode shall be permitted as the grounding electrode conductor for the separately derived system, if the grounding electrode conductor is
of sufficient size for the separately derived system. If the equipment grounding bus internal to the equipment is not smaller than the required grounding
electrode conductor for the separately derived system, the grounding electrode connection for the separately derived system shall be permitted to be made
to the bus.
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First Revision No. 1233-NFPA 70-2015 [ Section No. 250.36 [Excluding any Sub-Sections] ]
High-impedance grounded neutral systems in which a grounding impedance, usually a resistor, limits the ground-fault current to a low value shall
be permitted for 3-phase ac systems of 480 volts to 1000 2000 volts if all the following conditions are met:
(1) The conditions of maintenance and supervision ensure that only qualified persons service the installation.
(2) Ground detectors are installed on the system.
(3) Line-to-neutral loads are not served.
High-impedance grounded neutral systems shall comply with the provisions of 250.36(A) through (G).
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:32:33 EST 2015
Committee Statement
Committee
Statement:
The revision for the voltage in the main section allows for high impedance grounding system installations under this section for up to 2000
volts. 250.187 already allows impedance grounding with essentially the same requirements for over 1000 volts and therefore there is no real
change in requirements. There are high impedance grounding systems listed for voltages up to 15,000 volts so products do exist to meet
this application.
Response
Message:
Public Input No. 3090-NFPA 70-2014 [Section No. 250.36 [Excluding any Sub-Sections]]
Ballot Results
262 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
11 Affirmative All
2 Affirmative with Comments
4 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Bowmer, Trevor N.
Increasing these voltage levels does not change the grounding requirements of Article 250. However, making these changes in Article 250 without
concomitant and correlating changes in other parts of the code will lead to confusion and inconsistency.
Edwards, Timothy
See attached errata
Negative with Comment
Brett, Jr., Martin J.
I do not see the need or benefit of making the increasing the voltage level from 1000 volts to 2000 volts. I do not see a gap in coverage.
Dobrowsky, Paul
The voltage level should not be increased to 2000 to be consistent with other code making panels actions to have the threshold be 1000. There is no gap
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in voltage levels in Article 250, it is up to 1000 volts and over 1000 volts.
O'Meara, Mike
The voltage level should remain at 1000 volts. Making this change may allow additional items to comply with low voltage requirements without
substantiation and may create safety issues. Although the change in voltage does not directly impact the grounding requirements in Article 250, it creates
inconsistency with other Articles throughout the code, as other CMP’s did not accept these Public Inputs
Sasso, Nick
250.187 already allows impedance grounding with essentially the same requirements for over 1000 volts, therefore there is no real change in the
requirements and this change is not necessary. There is an undercurrent on this panel to replace 1000 volts with "2000 volts." In my opinion, this is
arbitrary and being attempted to serve some other purpose. Article 490 has a definition of high voltage (more than 1000 volts) therefore it is sensible and
practical for Article 250 to remain consistent with the NEC definition in Article 490. The NEC document needs to be consistent throughout. It is also
important to remember that other regulations, such as OSHA, use 1000 volts when the term "high voltage" is referenced. Furthermore, OSHA cooperative
programs state that for "OVER 1000 VOLTS" electrical burn wounds possess special clinical characteristics. In addition, for "OVER 1000 VOLTS" there is a
risk of wounds which can lead to amputation. The distinction is "over 1000" not "2000 volts."
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First Revision No. 1234-NFPA 70-2015 [ Sections 250.36(A), 250.36(B), 250.36(C), 250.36(D) ]
(A) Grounding Impedance Location.
The grounding impedance shall be installed between the grounding electrode conductor and the system neutral point. If a neutral point is not
available, the grounding impedance shall be installed between the grounding electrode conductor and the neutral point derived from a grounding
transformer.
(B) Grounded System Conductor Conductor Insulation and Ampacity .
The grounded system conductor from the neutral point of the transformer or generator to its connection point to the grounding impedance shall
be fully insulated.
The grounded system conductor shall have an ampacity of not less than the maximum current rating of the grounding impedance but in no case
shall the grounded system conductor be smaller than 8 AWG copper or 6 AWG aluminum or copper-clad aluminum.
(C) System Grounding Connection.
The system shall not be connected to ground except through the grounding impedance.
Informational Note: The impedance is normally selected to limit the ground-fault current to a value slightly greater than or equal to the
capacitive charging current of the system. This value of impedance will also limit transient overvoltages to safe values. For guidance, refer
to criteria for limiting transient overvoltages in ANSI/IEEE 142-2007, Recommended Practice for Grounding of Industrial and Commercial
Power Systems.
(D) Neutral Point to Grounding Impedance Conductor Routing.
The conductor connecting the neutral point of the transformer or generator to the grounding impedance shall be permitted to be installed in a
separate raceway from the ungrounded conductors. It shall not be required to run this conductor with the phase conductors to the first system
disconnecting means or overcurrent device.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:34:10 EST 2015
Committee Statement
Committee Statement: The panel changed the titles of Sections 250.36, (A), (B), (D) for accuracy
Response Message:
Ballot Results
264 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
15 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
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Edwards, Timothy
See attached errata
Negative with Comment
Sasso, Nick
This change came about when the panel noticed that the term 250.36(B)"Grounded System Conductor" and 250.36(D)"Neutral Point to Grounding
Impedance Conductor Routing" referred to the same conductor. A committee was formed and I was part of it. The original intent (as I understood it) was to
decide on one term to be used. In real life, journeyman electricians and installers thumb through the code. The newer, blander titles do not draw special
attention to the GROUNDED SYSTEM CONDUCTOR - to show that there is something different about it. This is important since the grounded system
conductor MUST be insulated or problems, even death may result. Remember - the grounded conductor by definition can be bare. There is something
special about this grounded system conductor and the 2014 language makes that stand out. I feel that the revised language makes the code "less safe" for
the installer.
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First Revision No. 1217-NFPA 70-2015 [ Section No. 250.52(A)(2) ]
(2) Metal Frame of the Building or Structure Metal In-ground Support Structure(s) .
The metal frame of the building or structure that is connected to the earth by one or more of the following methods: One or more metal in-ground
support structure(s) in direct contact with the earth vertically for 3.0 m (10 ft) or more, with or without concrete encasement. If multiple metal
in-ground support structures are present at a building or a structure, it shall be permissible to bond only one into the grounding electrode system.
(0) At least one structural metal member that is in direct contact with the earth for 3.0 m (10 ft) or more, with or without concrete encasement.
(0) Hold-down bolts securing the structural steel column that are connected to a concrete-encased electrode that complies with 250.52(A)(3)
and is located in the support footing or foundation. The hold-down bolts shall be connected to the concrete-encased electrode by welding,
exothermic welding, the usual steel tie wires, or other approved means.
Informational Note: Metal in-ground support structures include, but are not limited to, pilings, casings, and other structural metal.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 13:17:40 EST 2015
Committee Statement
Committee
Statement:
With the change in definition of electrodes, the title of this section has been corrected. The revised title and text provides clarity for
describing what this electrode is. The material regarding “hold-down” bolts was relocated.
Response
Message:
Public Input No. 3311-NFPA 70-2014 [Section No. 250.52(A)(2)]
Ballot Results
266 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 1212-NFPA 70-2015 [ Section No. 250.52(A)(7) ]
(7) Plate Electrodes.
2
2
Each plate electrode shall expose not less than 0.186 m (2 ft ) of surface to exterior soil. Electrodes of bare or conductively electrically
conductive coated iron or steel plates shall be at least 6.4 mm (1⁄4 in.) in thickness. Solid, uncoated electrodes of nonferrous metal shall be at
least 1.5 mm (0.06 in.) in thickness.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 12:26:06 EST 2015
Committee Statement
Committee Statement: This change is consistent with the language used in 250.52(A)(3)(1).
Response Message:
Ballot Results
267 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 1220-NFPA 70-2015 [ Section No. 250.52(A)(8) ]
(8) Other Local Metal Underground Systems or Structures.
Other local metal underground systems or structures such as piping systems, underground tanks, and underground metal well casings that are
not bonded to a metal water pipe. The structures and structural reinforcing steel described at 680.26(B)(1) and (B)(2) shall not be considered
as a grounding electrode described by this section.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 13:45:47 EST 2015
Committee Statement
Committee
Statement:
The panel determined that it was never the intent of the NEC to use a pool bonding grid as a grounding electrode. The panel determined
that the revision was better located in 250.52(B) rather than in the proposed location in PI 4809.
Response
Message:
Public Input No. 4809-NFPA 70-2014 [Section No. 250.52(A)(8)]
Ballot Results
268 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
3 Affirmative All
13 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Helfrich, William J.
Sasso, Nick
Steinman, Gregory J.
Affirmative with Comment
Beckstrand, Gary A.
The prohibition against using swimming pool structures and grids was inserted in electrodes permitted (Part A) added to the NEC text of “The structures
and structural reinforcing steel described at 680.26(B)(1) and (B)(2) shall not be considered as a grounding electrode described by this section.” is
supposed to be located in a new 250.52(B)(3) and not as currently shown in 250.52(A)(8).
Bowmer, Trevor N.
Item #1 - The prohibition against using swimming pool structures and grids was incorrectly inserted in the electrodes permitted section (part A). However,
the prohibition should have been entered in 250.52(B)(3) instead. Item #2 - The CMP5 panel requested this FR action be sent on to CMP 17 for comment
which is not reflected in the committee statement. Item #3 - The following text should be added as a new list item (item 3) to 250.52(B) as follows: "(3) The
structures and structural reinforcing steel described in 680.26(B)(1 and (B)(2)."
Brett, Jr., Martin J.
This was proposed for 250.52(A)(8) and the panel action moved it with revised text to 250.52(B)(3) NEW. What is in Terra is: 250.52(A)(8) Other Local
Metal Underground Systems or Structures. Other local metal underground systems or structures such s piping systems, underground tanks, and
underground metal well casings that are not bonded to a metal water pipe. The structures and structural reinforcing steel described at 680.26(B)(1) and
(B)(2) shall not be considered as a grounding electrode described by this section. The correct text should be in section 250.52(B) as new list item (3) as
follows: (3) The structures and structural reinforcing steel described in 680.26(B)(1) and (B)(2).
Edwards, Timothy
See attached errata
Harding, G. Scott
Section 250.52(B)(3) – This was proposed for 250.52(A)(8) and the panel action moved with revised text to 250.52(B). What is in Terra is: 250.52(A)(8)
Other Local Metal Underground Systems or Structures. Other local metal underground systems or structures such s piping systems, underground tanks,
and underground metal well casings that are not bonded to a metal water pipe. The structures and structural reinforcing steel described at 680.26(B)(1) and
(B)(2) shall not be considered as a grounding electrode described by this section. The correct text should be in section 250.52(B) as new list item (3) as
follows: (3) The structures and structural reinforcing steel described in 680.26(B)(1 and (B)(2).
Harding, Joseph
FR1220 – 250.52(A)(8) The prohibition against using swimming pool structures and grids was inserted in electrodes permitted (part A), should have been
entered as 250.52(B)(3) instead. The panel also requested this be sent on to CMP 17 for comment FR 1220 for section 250.52(B)(3) – This was proposed
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for 250.52(A)(8) and the panel action moved with revised text to 250.52(B). What is in Terra is: 250.52(A)(8) Other Local Metal Underground Systems or
Structures. Other local metal underground systems or structures such s piping systems, underground tanks, and underground metal well casings that are
not bonded to a metal water pipe. The structures and structural reinforcing steel described at 680.26(B)(1) and (B)(2) shall not be considered as a
grounding electrode described by this section. The correct text should be in section 250.52(B) as new list item (3) as follows: (3) The structures and
structural reinforcing steel described in 680.26(B)(1 and (B)(2).
Mello, Charles F.
The text as presented is not what the panel action was. There is no change to 250.52(A)(8). The panel acted to use the concept and create an additional
new list item 3 in 250.52(B) as follows: 250.52(B) (3) The structures and structural reinforcing steel described in 680.26(B)(1) and (B)(2).
Mohla, Daleep C.
The prohibition against using swimming pool structures and grids was inserted in electrodes permitted (part A), should have been entered as 250.52(B)(3)
instead. The panel also requested this be sent on to CMP 17 for comment This was proposed for 250.52(A)(8) and the panel action moved with revised text
to 250.52(B).
O'Meara, Mike
The prohibition against using swimming pool structures and grids was inserted in electrodes permitted (part A), should have been entered as 250.52(B)(3)
instead. The panel also requested this be sent on to CMP 17 for comment
Palmieri, Charles J.
250.52(A)(8) The prohibition against using swimming pool structures and grids was inserted in electrodes permitted (part A), should have been entered as
250.52(B)(3) instead. The panel also requested this be sent on to CMP 17 for comment
Philips, Nathan
250.52(A)(8) The prohibition against using swimming pool structures and grids was inserted in electrodes permitted (part A), should have been entered as
250.52(B)(3) instead. The panel also requested this be sent on to CMP 17 for comment. 250.52(B)(3) – This was proposed for 250.52(A)(8) and the panel
action moved with revised text to 250.52(B). What is in Terra is: 250.52(A)(8) Other Local Metal Underground Systems or Structures. Other local metal
underground systems or structures such s piping systems, underground tanks, and underground metal well casings that are not bonded to a metal water
pipe. The structures and structural reinforcing steel described at 680.26(B)(1) and (B)(2) shall not be considered as a grounding electrode described by this
section. The correct text should be in section 250.52(B) as new list item (3) as follows: (3) The structures and structural reinforcing steel described in
680.26(B)(1 and (B)(2).
Porter, Christine T.
FR1220 – 250.52(A)(8) The prohibition against using swimming pool structures and grids was inserted in electrodes permitted (part A), should have been
entered as 250.52(B)(3) instead. The panel also requested this be sent on to CMP 17 for comment
Simmons, Phil
CDA votes to accept this PI provided that the text provided by NFPA in the ballot is corrected to that which was accepted by CMP-5 at the Panel meeting.
NFPA incorrectly locates the text accepted at 250.52(A)(8). The text that was accepted creates a new 250.52(B)(3) to read as follows: “(3) The structures
and structural reinforcing steel described in 680.26(B)(1) and (B)(2).”
Negative with Comment
Dobrowsky, Paul
If a building or structure supplied with electric power is at a pool a concrete encased electrode that exists at the pool needs to be used. Stating that
reinforcing steel that meets the description of a concrete encased electrode is not considered at an electrode if at a pool is confusing language. The rule in
680.26 does not require a connection to a "remote" panelboard, service equipment or electrode. Additionally the panel intended this to be 250.52(B) ,as
indicated in the committee statement, and this action be submitted to CMP17 for comment.
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First Revision No. 1221-NFPA 70-2015 [ Section No. 250.53(F) ]
(F) Ground Ring.
The ground ring shall be buried at a depth below the earth’s surface of installed not less than 750 mm (30 in.) below the surface of the earth .
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 13:47:13 EST 2015
Committee Statement
Committee Statement: The text is revised for clarity and consistency with 250.53(H)
Response Message:
Public Input No. 2738-NFPA 70-2014 [Section No. 250.53(F)]
Ballot Results
270 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 7510-NFPA 70-2015 [ Section No. 250.60 ]
250.60 Use of Strike Termination Devices.
Conductors and driven pipes, rods, or plate electrodes used for grounding strike termination devices shall not be used in lieu of the grounding
electrodes required by 250.50 for grounding wiring systems and equipment. This provision shall not prohibit the required bonding together of
grounding electrodes of different systems.
Informational Note No. 1: See 250.106 for spacing from strike termination devices. lightning protection system components. See
800.100(D) , 810.21(J) , and 820.100(D) for bonding of electrodes.
Informational Note No. 2: Bonding together of all separate grounding electrodes will limit potential voltage differences between them and
between their associated wiring systems.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
NATIONAL FIRE PROTECTION ASSOC
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 11:16:21 EST 2015
Committee Statement
Committee Statement: The change is made for consistency with NFPA 780.
Response Message:
Public Input No. 3276-NFPA 70-2014 [Section No. 250.60]
Public Input No. 4569-NFPA 70-2014 [Section No. 250.60]
Ballot Results
271 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
15 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
Palmieri, Charles J.
250.4(B)(1) Does not show up in Terra View. It is an identical informational note, applicable to ungrounded systems. Same issue with the date of the
standard NFPA 780
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First Revision No. 1222-NFPA 70-2015 [ Section No. 250.64(A) ]
(A) Aluminum or Copper-Clad Aluminum Conductors.
Bare aluminum or copper-clad aluminum grounding electrode conductors shall not be used where in direct contact with masonry or the earth or
where subject to corrosive conditions . Where used installed outside of a building or enclosure , aluminum or copper-clad aluminum grounding
electrode conductors shall not be terminated within 450 mm (18 in.) of the earth unless the termination method is listed as a sealed
wire-connector system. Terminations made within listed enclosures suitable for outdoor use shall be permitted within 450 mm (18 in.) of the
earth.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 13:49:17 EST 2015
Committee Statement
Committee
Statement:
The allowance for terminating within listed outdoor enclosures and for using listed termination methods suitable for the purpose of
providing a sealed junction is added for clarity. The revised text provides the AHJ clarity to make a consistent “approval” decision. The term
“sealed wire connector systems” is consistent with the product listing name.
Response
Message:
Public Input No. 1497-NFPA 70-2014 [Section No. 250.64(A)]
Public Input No. 4702-NFPA 70-2014 [Section No. 250.64(A)]
Ballot Results
272 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
6 Affirmative All
10 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Dobrowsky, Paul
Helfrich, William J.
Porter, Christine T.
Sasso, Nick
Steinman, Gregory J.
Affirmative with Comment
Bowmer, Trevor N.
FR 1222 for section 250.64(A) currently shows the text “or where subject to corrosive conditions” being struck out (deleted) where as the panel action at
the committee meeting was to reject that proposed change and the above text should not be struck out from the code.
Brett, Jr., Martin J.
The text “or where subject to corrosive conditions” is struck out and the panel rejected that proposed change and it should not be struck out. A) Aluminum
or Copper-Clad Aluminum Conductors. Should read: 250.64(A) Aluminum or Copper-Clad Aluminum Conductors. (A) Bare aluminum or copper-clad
aluminum grounding electrode conductors shall not be used where in direct contact with masonry or the earth or where subject to corrosive conditions.
Where installed outside of a building or enclosure, aluminum or copper-clad aluminum grounding electrode conductors shall not be terminated within 450
mm (18 in.) of the earth unless the termination method is listed as a sealed wire-connector system. Terminations made within listed enclosures suitable for
outdoor use shall be permitted within 450 mm (18 in.) of the earth. I agree with Phil and believe that a reference should be made to connections being
made only at factory provided connection points.
Edwards, Timothy
See attached errata
Harding, G. Scott
a)The text “or where subject to corrosive conditions” is struck out and the panel rejected that proposed change and it should not be struck out.
Harding, Joseph
FR 1222 for section 250.64(A) a) The text “or where subject to corrosive conditions” is struck out and the panel rejected that proposed change and it
should not be struck out.
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Mello, Charles F.
The text "..or where subject to corrosive conditons" is shown as struck out and this change was not accepted by the panel. The section for 250.64(A)
should read as follows: (A) Aluminum or Copper-Clad Aluminum Conductors. Bare aluminum or copper-clad aluminum grounding electrode conductors
shall not be used where in direct contact with masonry or the earth or where subject to corrosive conditions. Where installed outside of a building or
enclosure, aluminum or copper-clad aluminum grounding electrode conductors shall not be terminated within 450 mm (18 in.) of the earth unless the
termination method is listed as a sealed wire connector system. Terminations made within listed enclosures suitable for outdoor use shall be permitted
within 450 mm (18 in.) of the earth.
Mohla, Daleep C.
a) The text “or where subject to corrosive conditions” is struck out and the panel rejected that proposed change and it should not be struck out.
O'Meara, Mike
The text “or where subject to corrosive conditions” is struck out and the panel rejected that proposed change and it should not be struck out.
Palmieri, Charles J.
a) The text “or where subject to corrosive conditions” is struck out and the panel rejected that proposed change and it should not be struck out.
Philips, Nathan
a) The text “or where subject to corrosive conditions” is struck out and the panel rejected that proposed change and it should not be struck out.
Negative with Comment
Simmons, Phil
CDA votes negative on the Panel action on this Public Input. Reasons for this negative vote include: 1. The phrase “for wet locations or concrete
encasement” was accepted by the Panel and is not included in the action appearing in the NFPA document that is being voted on. It is important that this
limitation be included. 2. The Panel was not provided with documentation that “sealed wire connector systems” have been evaluated for the purpose of
terminating aluminum grounding electrode conductors at the locations where they would typically be installed. 3. The new last sentence “Terminations
made within listed enclosures suitable for outdoor use shall be permitted within 450 mm (18 in.) of the earth” is much too broad. This will allow connection
of aluminum grounding electrode conductors at locations where corrosive conditions may be present. No documentation was provided to the Panel that
aluminum conductors have been evaluated for these locations and have been found acceptable.
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First Revision No. 1223-NFPA 70-2015 [ Section No. 250.64(B) ]
(B) Securing and Protection Against Physical Damage.
Where exposed, a grounding electrode conductor or its enclosure shall be securely fastened to the surface on which it is carried. Grounding
electrode conductors shall be permitted to be installed on or through framing members. 300.5.
(1) Not Exposed to Physical Damage.
A 4 6 AWG or larger copper or aluminum grounding electrode conductor shall be protected if not exposed to physical damage . A 6 AWG
grounding electrode conductor that is free from exposure to physical damage shall be permitted to be run along the surface of the building
construction without metal covering or protectionif it is securely fastened to the construction; otherwise, it shall .
(2) Exposed to Physical Damage.
A 6 AWG or larger copper or aluminum grounding electrode conductor exposed to physical damage shall be protected in rigid metal conduit
(RMC), intermediate metal conduit (IMC), rigid polyvinyl chloride conduit (PVC), reinforced thermosetting resin conduit (RTRC), electrical metallic
tubing (EMT), or cable armor.
(3) Smaller Than 6 AWG.
Grounding electrode conductors smaller than 6 AWG shall be protected in ( RMC) , IMC, PVC, RTRC, ( EMT) , or cable armor.
(4) In Contact with the Earth.
Grounding electrode conductors and grounding electrode bonding jumpers in contact with the earth shall not be required to comply with 300.5 ,
but shall be buried or otherwise protected if subject to physical damage.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 13:53:16 EST 2015
Committee Statement
Committee
Statement:
The long paragraph was revised to list format for better usability. The statement in new list item (1) about being secured to the building
surface was removed as it is redundant with the charging text. The protection methods that were provided for 6 AWG conductors were
extended to include 6 AWG and larger conductors. Other editorial changes were made for clarity. Revised text was added to provide for
burial of grounding electrode conductors.
Response
Message:
Public Input No. 985-NFPA 70-2014 [Section No. 250.64(B)]
Public Input No. 1218-NFPA 70-2014 [Section No. 250.64(B)]
Ballot Results
274 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
5 Affirmative All
11 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Dobrowsky, Paul
Helfrich, William J.
Porter, Christine T.
Sasso, Nick
Steinman, Gregory J.
Affirmative with Comment
Beckstrand, Gary A.
The following was revised by the committee and is not shown in the FR, “(2) Exposed to Physical Damage. A 6 AWG or larger copper or aluminum
grounding electrode conductor exposed to physical damage shall be protected in rigid metal conduit (RMC), intermediate metal conduit (IMC), rigid
polyvinyl chloride conduit (PVC), reinforced thermosetting resin conduit (RTRC), electrical metallic tubing (EMT), or cable armor. (3) Smaller Than 6 AWG.
Grounding electrode conductors smaller than 6 AWG shall be protected in (RMC), IMC, PVC, RTRC, (EMT), or cable armor. ” it should read “Exposed To
Physical Damage. A 6 AWG or larger copper or aluminum grounding electrode conductor exposed to physical damage shall be protected in rigid metal
conduit (RMC), intermediate metal conduit (IMC), rigid polyvinyl chloride conduit (PVC), XW-type reinforced thermosetting resin conduit (RTRC-XW),
electrical metallic tubing (EMT), or cable armor. (3) Smaller Than 6 AWG. Grounding electrode conductors smaller than 6 AWG shall be protected in
(RMC), IMC, PVC, RTRC-XW, (EMT), or cable armor.”
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Bowmer, Trevor N.
There are several differences between the CMP5 actions at the meeting and what appears in Terraview Issue #1 - Comments on Section 250.64(B)(1) –
Item #1 - The beginning text should show the “A 4” as stuck out. Item #2 - The 2014 code text “shall be protected if exposed to physical damage.” should
have been struck out and was not. The addition of "not" in that phrase is incorrect and should not be made. The sentence now does not make sense unless
these changes are made. Issue #2 - Comments on Section 250.64(B)(2) – Item #3 - The parentheses marks for “(RMC)” should be shown with underlining
to indicate that they are newly added. Item #4 - The added requirement for PVC to be of the “XW” type was missed. The revised text should read as follows
“…rigid polyvinyl chloride conduit (PVC), XW-type”… with XW-type newly added. Item #5 - The added requirement for RTRC to be of the “XW” type was
missed. The revised text should read as follows read "...reinforced thermosetting resin conduit (RTRC-XW)…” Item #6 - The parentheses marks for “(EMT)”
should be shown with underlining to indicate that they are newly added. Issue #3 - Comments on Section 250.64(B)(3) – Item #7 - The RTRC conduit was
to be specified to be of the XW type and should be shown as “…RTRC-XW…” Issue #4 - Comments on Section 250.64(B)(4) – Item #8 - The “the” added
into the text between “with” and “earth” is not necessary and should be deleted.
Brett, Jr., Martin J.
(1)The beginning should show the “A 4” as stuck out and that is missing. The text “shall be protected if exposed to physical damage.” Should have been
struck out and was not, sentence now does not make sense are revised. Remainder of text works but legislative text as revised by the panel is different (2)
Missed the underlines for the parentheses marks for “(RMC)” The added requirement for PVC to be the “XW” type was missed - should read as “…rigid
polyvinyl chloride conduit (PVC), XW-type”… Missed the added requirement for RTRC to be XW type. Should read reinforced thermosetting resin conduit
(RTRC-XW)…” Missed the underline for the parentheses marks for “(EMT)” (3) The RMC had the parentheses marks deleted but not struck in Terra The
RTRC conduit was to be the XW type and should show as “…RTRC-XW…” The parentheses marks for the EMT were to be deleted but were missed. (4)
There is an extra “the” added in to the text between “with” and “earth”.
Edwards, Timothy
See attached errata
Harding, G. Scott
(1) The beginning should show the “A 4” as stuck out and that is missing. The text “shall be protected if exposed to physical damage.” Should have been
struck out and was not, sentence now does not make sense are revised. Remainder of text works but legislative text as revised by the panel is different
Missed the underlines for the parentheses marks for “(RMC)” The added requirement for PVC to be the “XW” type was missed - should read as “…rigid
polyvinyl chloride conduit (PVC), XW-type”… Missed the added requirement for RTRC to be XW type. Should read reinforced thermosetting resin conduit
(RTRC-XW)…” Missed the underline for the parentheses marks for “(EMT)” i.(3) The RMC had the parentheses marks deleted but not struck in Terra The
RTRC conduit was to be the XW type and should show as “…RTRC-XW…” The parentheses marks for the EMT were to be deleted but were missed. i.(4)
There is an extra “the” added in to the text between “with” and “earth”.
Harding, Joseph
Fr 1223 for section 250.64(B)(1) a) The beginning should show the “A 4” as stuck out and that is missing. b) The text “shall be protected if exposed to
physical damage.” Should have been struck out and was not, sentence now does not make sense are revised. c) Remainder of text works but legislative
text as revised by the panel is different i. (2) d) Missed the underlines for the parentheses marks for “(RMC)” e) The added requirement for PVC to be the
“XW” type was missed - should read as “…rigid polyvinyl chloride conduit (PVC), XW-type”… f) Missed the added requirement for RTRC to be XW type.
Should read reinforced thermosetting resin conduit (RTRC-XW)…” g) Missed the underline for the parentheses marks for “(EMT)” i. (3) h) The RMC had
the parentheses marks deleted but not struck in Terra i) The RTRC conduit was to be the XW type and should show as “…RTRC-XW…” j) The parentheses
marks for the EMT were to be deleted but were missed. i. (4) k) There is an extra “the” added in to the text between “with” and “earth”.
Mello, Charles F.
The text as shown in the ballot is not correct as established by the panel. The text of 250.64(B) should read as follows: (B) Securing and Protection
Against Physical Damage. Where exposed, a grounding electrode conductor or its enclosure shall be securely fastened to the surface on which it is carried.
Grounding electrode conductors shall be permitted to be installed on or through framing members. (1) Not Exposed to Physical Damage. A 6 AWG or
larger copper or aluminum grounding electrode conductor not exposed to physical damage shall be permitted to be run along the surface of the building
construction without metal covering or protection. (2) Exposed To Physical Damage. A 6 AWG or larger copper or aluminum grounding electrode conductor
exposed to physical damage shall be protected in rigid metal conduit (RMC), intermediate metal conduit (IMC), rigid polyvinyl chloride conduit (PVC),
XW-type reinforced thermosetting resin conduit (RTRC-XW), electrical metallic tubing (EMT), or cable armor. (3) Smaller Than 6 AWG. Grounding
electrode conductors smaller than 6 AWG shall be protected in RMC, IMC, PVC, RTRC-XW, EMT, or cable armor. (4) In Contact with Earth. Grounding
electrode conductors and grounding electrode bonding jumpers in contact with earth shall not be required to comply with 300.5, but shall be buried or
otherwise protected if subject to physical damage.
Mohla, Daleep C.
a) The beginning should show the “A 4” as stuck out and that is missing. b) The text “shall be protected if exposed to physical damage.” Should have been
struck out and was not, sentence now does not make sense are revised. c) Remainder of text works but legislative text as revised by the panel is different i.
(2) d) Missed the underlines for the parentheses marks for “(RMC)” e) The added requirement for PVC to be the “XW” type was missed - should read as
“…rigid polyvinyl chloride conduit (PVC), XW-type”… f) Missed the added requirement for RTRC to be XW type. Should read reinforced thermosetting resin
conduit (RTRC-XW)…” g) Missed the underline for the parentheses marks for “(EMT)” i. (3) h) The RMC had the parentheses marks deleted but not struck
in Terra i) The RTRC conduit was to be the XW type and should show as “…RTRC-XW…” j) The parentheses marks for the EMT were to be deleted but
were missed. i. (4) k) There is an extra “the” added in to the text between “with” and “earth”.
O'Meara, Mike
(1) a) The beginning should show the “A 4” as stuck out and that is missing. b) The text “shall be protected if exposed to physical damage.” Should have
been struck out and was not, sentence now does not make sense are revised. c) Remainder of text works but legislative text as revised by the panel is
different i. (2) d) Missed the underlines for the parentheses marks for “(RMC)” e) The added requirement for PVC to be the “XW” type was missed - should
read as “…rigid polyvinyl chloride conduit (PVC), XW-type”… f) Missed the added requirement for RTRC to be XW type. Should read reinforced
thermosetting resin conduit (RTRC-XW)…” g) Missed the underline for the parentheses marks for “(EMT)” i. (3) h) The RMC had the parentheses marks
deleted but not struck in Terra i) The RTRC conduit was to be the XW type and should show as “…RTRC-XW…” j) The parentheses marks for the EMT
were to be deleted but were missed. i. (4) k) There is an extra “the” added in to the text between “with” and “earth”.
Palmieri, Charles J.
3) Fr 1223 for section 250.64(B) (1) a) The beginning should show the “A 4” as stuck out and that is missing. b) The text “shall be protected if exposed to
physical damage.” Should have been struck out and was not, sentence now does not make sense are revised. c) Remainder of text works but legislative
text as revised by the panel is different i. (2) d) Missed the underlines for the parentheses marks for “(RMC)” e) The added requirement for PVC to be the
“XW” type was missed - should read as “…rigid polyvinyl chloride conduit (PVC), XW-type”… f) Missed the added requirement for RTRC to be XW type.
Should read reinforced thermosetting resin conduit (RTRC-XW)…” g) Missed the underline for the parentheses marks for “(EMT)” i. (3) h) The RMC had
the parentheses marks deleted but not struck in Terra i) The RTRC conduit was to be the XW type and should show as “…RTRC-XW…” j) The parentheses
marks for the EMT were to be deleted but were missed. i. (4) k) There is an extra “the” added in to the text between “with” and “earth”.
Philips, Nathan
250.64(B) a) The beginning should show the “A 4” as stuck out and that is missing. b) The text “shall be protected if exposed to physical damage.” Should
have been struck out and was not, sentence now does not make sense are revised. c) Remainder of text works but legislative text as revised by the panel
is different i. (2) d) Missed the underlines for the parentheses marks for “(RMC)” e) The added requirement for PVC to be the “XW” type was missed should read as “…rigid polyvinyl chloride conduit (PVC), XW-type”… f) Missed the added requirement for RTRC to be XW type. Should read reinforced
thermosetting resin conduit (RTRC-XW)…” g) Missed the underline for the parentheses marks for “(EMT)” i. (3) h) The RMC had the parentheses marks
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deleted but not struck in Terra i) The RTRC conduit was to be the XW type and should show as “…RTRC-XW…” j) The parentheses marks for the EMT
were to be deleted but were missed. i. (4) k) There is an extra “the” added in to the text between “with” and “earth”.
Negative with Comment
Simmons, Phil
CDA votes negative on the Panel action on this Public Input. Reasons for this negative vote include: 1. The phrase “but shall be buried or otherwise
protected if subject to physical damage” is not prescriptive and thus will be subject to widely varying interpretations. 2. No minimum burial depth is
provided. 3. No clue is provided for what “otherwise protected” means. Protected how? 4. How does one determine that the grounding electrode conductor
is subject to physical damage?
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First Revision No. 1224-NFPA 70-2015 [ Section No. 250.64(D) ]
(D) Building or Structure with Multiple Disconnecting Means in Separate Enclosures.
For a If a building or structure is supplied by a service or feeder with two or more disconnecting means in separate enclosures supplying a
building or structure , the grounding electrode connections shall be made in accordance with 250.64(D)(1), 250.64(D)(2) , or 250.64(D)(3) .
(1) Common Grounding Electrode Conductor and Taps.
A common grounding electrode conductor and grounding electrode conductor taps shall be installed. The common grounding electrode
conductor shall be sized in accordance with 250.66 , based on the sum of the circular mil area of the largest ungrounded conductor(s) of each set
of conductors that supplies the disconnecting means. If the service-entrance conductors connect directly to the overhead service conductors,
service drop, underground service conductors, or service lateral, the common grounding electrode conductor shall be sized in accordance with
Table 250.66 , note 1.
A grounding electrode conductor tap shall extend to the inside of each disconnecting means enclosure. The grounding electrode conductor taps
shall be sized in accordance with 250.66 for the largest service-entrance or feeder conductor serving the individual enclosure. The tap
conductors shall be connected to the common grounding electrode conductor by one of the following methods in such a manner that the common
grounding electrode conductor remains without a splice or joint:
(1) Exothermic welding.
(2) Connectors listed as grounding and bonding equipment.
(3) Connections to an aluminum or copper busbar not less than 6 mm thick × 50 mm wide (1⁄4 in. thick × 2 in. wide) and of sufficient length to
accommodate the number of terminations necessary for the installation. The busbar shall be securely fastened and shall be installed in an
accessible location. Connections shall be made by a listed connector or by the exothermic welding process. If aluminum busbars are used,
the installation shall comply with 250.64(A) .
(2) Individual Grounding Electrode Conductors.
A grounding electrode conductor shall be connected between the grounding electrode system and one or more of the following, as applicable:
(1) Grounded conductor in each service equipment disconnecting means enclosure
(2) Equipment grounding conductor installed with the feeder
(3) Supply-side bonding jumper
Each grounding electrode conductor shall be sized in accordance with 250.66 based on the service-entrance or feeder conductor(s) supplying
the individual disconnecting means.
(3) Common Location.
A grounding electrode conductor shall be connected in a wireway or other accessible enclosure on the supply side of the disconnecting means to
one or more of the following, as applicable:
(1) Grounded service conductor(s)
(2) Equipment grounding conductor installed with the feeder
(3) Supply-side bonding jumper
The connection shall be made with exothermic welding or a connector listed as grounding and bonding equipment. The grounding electrode
conductor shall be sized in accordance with 250.66 based on the service-entrance or feeder conductor(s) at the common location where the
connection is made.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:01:12 EST 2015
Committee Statement
Committee Statement: The text was revised editorially.
Response Message:
Public Input No. 3358-NFPA 70-2014 [Section No. 250.64(D)]
Ballot Results
277 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
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0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 1225-NFPA 70-2015 [ Section No. 250.64(E)(1) ]
(1) General.
Ferrous metal raceways and enclosures for grounding electrode conductors shall be electrically continuous from the point of attachment to
cabinets or equipment to the grounding electrode and shall be securely fastened to the ground clamp or fitting. Ferrous metal raceways and
enclosures shall be bonded at each end of the raceway or enclosure to the grounding electrode or grounding electrode conductor to create a
parallel path . Nonferrous metal raceways and enclosures shall not be required to be electrically continuous.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:03:59 EST 2015
Committee Statement
Committee Statement: Adding the text will aid understanding of this important requirement.
Response Message:
Public Input No. 3367-NFPA 70-2014 [Section No. 250.64(E)(1)]
Ballot Results
279 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
15 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
Negative with Comment
Sasso, Nick
After careful consideration, I change my position to negative. The new text will not aid understanding. In other places in Article 250, it is highly
UNdesireable to have a ground loop or a parallel path. This new language will only serve to confuse the installer. One would already have to have a grasp
of this section in order to comprehend the new language. In my opinion, the 2014 language is better.
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First Revision No. 1226-NFPA 70-2015 [ Section No. 250.64(F) ]
(F) Installation to Electrode(s).
Grounding electrode conductor(s) and bonding jumpers interconnecting grounding electrodes shall be installed in accordance with (1), (2), or (3).
The grounding electrode conductor shall be sized for the largest grounding electrode conductor required among all the electrodes connected to it.
(1) The grounding electrode conductor shall be permitted to be run to any convenient grounding electrode available in the grounding electrode
system where the other electrode(s), if any, is connected by bonding jumpers that are installed in accordance with 250.53(C) .
(2) Grounding electrode conductor(s) shall be permitted to be run to one or more grounding electrode(s) individually.
(3) Bonding jumper(s) from grounding electrode(s) shall be permitted to be connected to an aluminum or copper busbar not less than 6 mm
thick × 50 mm wide (1⁄4 in. thick × 2 in wide .) and of sufficient length to accommodate the number of terminations necessary for the
installation . The busbar shall be securely fastened and shall be installed in an accessible location. Connections shall be made by a listed
connector or by the exothermic welding process. The grounding electrode conductor shall be permitted to be run to the busbar. Where
aluminum busbars are used, the installation shall comply with 250.64(A) .
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:06:01 EST 2015
Committee Statement
Committee Statement: These changes are necessary to coordinate with changes previously made to 250.64(D)(1)(3).
Response Message:
Public Input No. 3363-NFPA 70-2014 [Section No. 250.64(F)]
Public Input No. 3336-NFPA 70-2014 [Section No. 250.64(F)]
Ballot Results
280 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 1227-NFPA 70-2015 [ Sections 250.66(A), 250.66(B), 250.66(C) ]
(A) Connections to a Rod, Pipe, or Plate Electrode(s).
Where the grounding electrode conductor is connected to a single or multiple rod, pipe, or plate electrode(s), or any combination thereof, as
permitted in 250.52(A)(5) or (A)(7), that portion of the conductor that is the sole connection to the grounding electrode(s) does not extend on to
other types of electrodes, the grounding electrode conductor shall not be required to be larger than 6 AWG copper wire or 4 AWG aluminum
wire.
(B) Connections to Concrete-Encased Electrodes.
Where the grounding electrode conductor is connected to a single or multiple concrete-encased electrode(s), as permitted in 250.52(A)(3) , that
portion of the conductor that is the sole connection to the grounding electrode(s) does not extend on to other types of electrodes that require a
larger size of conductor, the grounding electrode conductor shall not be required to be larger than 4 AWG copper wire.
(C) Connections to Ground Rings.
Where the grounding electrode conductor is connected to a ground ring, as permitted in 250.52(A)(4), that portion of the conductor that is the
sole connection to the grounding electrode does not extend on to other types of electrodes that require a larger size of conductor, the grounding
electrode conductor shall not be required to be larger than the conductor used for the ground ring.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:07:36 EST 2015
Committee Statement
Committee
Statement:
The revised text clarifies the intent of the panel to permit the practice of “daisy chaining” grounding electrodes to form a grounding electrode
system and that as long as any downstream electrode would not require a larger grounding electrode conductor or bonding jumper the
provisions of 260.66(A), (B), and (C) would apply for sizing of these conductors. The revised text removes the term “sole connection” that
apparently caused confusion in the industry as to the intended application of these provisions.
Response
Message:
Public Input No. 4196-NFPA 70-2014 [Sections 250.66(A), 250.66(B), 250.66(C)]
Public Input No. 1407-NFPA 70-2014 [Section No. 250.66(A)]
Ballot Results
281 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
6 Affirmative All
10 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Dobrowsky, Paul
Helfrich, William J.
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Beckstrand, Gary A.
In the NEC Text in each section of 250.66 (A), (B), and (C), the first sentence is supposed to read as follows: “If the grounding electrode conductor or
bonding jumper is connected….” The phrase “or bonding jumpers” was omitted in Terra.
Brett, Jr., Martin J.
250.66 (A)“Where” was to be changed to “If” After the word “conductor” the words “or bonding jumper” should have been added as new text. 250.66 (B)
“Where” was to be changed to “If” After the word “conductor” the words “or bonding jumper” should have been added as new text. 250.66 (C) “Where” was
to be changed to “If” After the word “conductor” the words “or bonding jumper” should have been added as new text.
Edwards, Timothy
See attached errata
Harding, G. Scott
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(A) “Where” was to be changed to “If” After the word “conductor” the words “or bonding jumper” should have been added as new text. (B) “Where” was to
be changed to “If” After the word “conductor” the words “or bonding jumper” should have been added as new text. The comma after 250.52(A)((3) should
be shown as deleted (C) “Where” was to be changed to “If” After the word “conductor” the words “or bonding jumper” should have been added as new text.
The comma after 250.52(A)((3) should be shown as deleted
Harding, Joseph
FR 1227 for section 250.66 – (A) a. “Where” was to be changed to “If” b. After the word “conductor” the words “or bonding jumper” should have been
added as new text. (B) c. “Where” was to be changed to “If” d. After the word “conductor” the words “or bonding jumper” should have been added as new
text. e. The comma after 250.52(A)((3) should be shown as deleted (C) f. “Where” was to be changed to “If” g. After the word “conductor” the words “or
bonding jumper” should have been added as new text. h. The comma after 250.52(A)((3) should be shown as deleted
Mello, Charles F.
The following errors are noted. The terms "Where" were changed to "If" for all sections. The term "or bonding jumper" was added to all sections. The text
should read as follows: (A) Connections to a Rod, Pipe, or Plate Electrode(s). If the grounding electrode conductor or bonding jumper connected to a single
or multiple rod, pipe, or plate electrode(s), or any combination thereof, as permitted in 250.52(A) (5) or (A)(7), does not extend to other types of electrodes,
the grounding electrode conductor shall not be required to be larger than 6 AWG copper wire or 4 AWG aluminum wire. (B) Connections to ConcreteEncased Electrodes. If the grounding electrode conductor or bonding jumper connected to a single or multiple concrete-encased electrode(s) as permitted
in 250.52(A)(3), does not extend to other types of electrodes that require a larger size conductor, the grounding electrode conductor shall not be required to
be larger than 4 AWG copper wire. (C) Connections to Ground Rings. If the grounding electrode conductor or bonding jumper is connected to a ground ring
as permitted in 250.52(A)(4) does not extend to other types of electrodes that require a larger size conductor, the grounding electrode conductor shall not
be required to be larger than the conductor used for the ground ring.
Mohla, Daleep C.
(A) a. “Where” was to be changed to “If” b. After the word “conductor” the words “or bonding jumper” should have been added as new text. (B) c. “Where”
was to be changed to “If” d. After the word “conductor” the words “or bonding jumper” should have been added as new text. e. The comma after
250.52(A)((3) should be shown as deleted (C) f. “Where” was to be changed to “If” g. After the word “conductor” the words “or bonding jumper” should have
been added as new text. h. The comma after 250.52(A)((3) should be shown as deleted
O'Meara, Mike
for section 250.66 – (A) a. “Where” was to be changed to “If” b. After the word “conductor” the words “or bonding jumper” should have been added as new
text. (B) c. “Where” was to be changed to “If” d. After the word “conductor” the words “or bonding jumper” should have been added as new text. e. The
comma after 250.52(A)((3) should be shown as deleted (C) f. “Where” was to be changed to “If” g. After the word “conductor” the words “or bonding jumper”
should have been added as new text. h. The comma after 250.52(A)((3) should be shown as deleted
Palmieri, Charles J.
7. FR 1227 for section 250.66 – (A) a. “Where” was to be changed to “If” b. After the word “conductor” the words “or bonding jumper” should have been
added as new text. (B) c. “Where” was to be changed to “If” d. After the word “conductor” the words “or bonding jumper” should have been added as new
text. e. The comma after 250.52(A)((3) should be shown as deleted (C) f. “Where” was to be changed to “If” g. After the word “conductor” the words “or
bonding jumper” should have been added as new text. h. The comma after 250.52(A)((3) should be shown as deleted
Philips, Nathan
Section 250.66 – (A) a. “Where” was to be changed to “If” b. After the word “conductor” the words “or bonding jumper” should have been added as new
text. (B) c. “Where” was to be changed to “If” d. After the word “conductor” the words “or bonding jumper” should have been added as new text. e. The
comma after 250.52(A)((3) should be shown as deleted (C) f. “Where” was to be changed to “If” g. After the word “conductor” the words “or bonding jumper”
should have been added as new text. h. The comma after 250.52(A)((3) should be shown as deleted
Negative with Comment
Bowmer, Trevor N.
These comments pertain to FR-1227 as in Terra view as well as to that shown in the CMP5 First Revision Ballot Corrected Text. Although the changes
from “Where” to “If” and adding commas is acceptable, the addition of the “single or multiple”, and “or bonding jumper” after the word “conductor” in 250.66
(A), (B) and (C) is confusing. In addition the phrase “ that require a larger size conductor” is missing from the proposed 250.66(A . The title and scope of
250.66 is “Size of the Alternating-Current Grounding Electrode Conductor”. Introducing “bonding jumper” into the rule is confusing and is not done
consistently. If “bonding jumper” is to be included it would need to be (a) added wherever the “grounding electrode conductor” appears (including the title)
which would further complicate the sentence and confuse readers, or (b) include as an option under a separate sentence either in the charging text of
250.66 or in each section- 250.6 (A), (B) and (C). The following alternate text is provided where (1) the “single or multiple” language is removed since this is
already covered by the phrase “or any combination” or in the use of “electrode systems” , (2) the application of this concept to bonding jumpers is
separated out as a separate sentence, and (3) added “ that require a larger size conductor” to the proposed 250.66(A) to match the proposed language in
250.66(B) and (C). (A) Connections to a Rod, Pipe, or Plate Electrode(s). The grounding electrode conductor shall not be required to be larger than 6 AWG
copper wire or 4 AWG aluminum wire for a grounding electrode conductor connected to a rod, pipe, or plate electrode(s) as permitted in 250.52(A) (5) or
(A)(7), providing the grounding electrode conductor does not extend to other types of electrodes that require a larger size conductor. The same maximum
size limits also apply to bonding jumpers used in, or attached to, a combination of rod pipe or plate electrodes that form an ground electrode system. (B)
Connections to Concrete-Encased Electrodes. The grounding electrode conductor shall not be required to be larger than 4 AWG copper wire for a
grounding electrode conductor connected to a single or multiple concrete-encased electrode(s) as permitted in 250.52(A)(3), providing the grounding
electrode conductor does not extend to other types of electrodes that require a larger size conductor. The same maximum size limits also apply to bonding
jumpers attached to concrete-encased electrode systems. (C) Connections to Ground Rings. The grounding electrode conductor shall not be required to be
larger than the conductor used for the ground ring if the grounding electrode conductor is connected to a ground ring as permitted in 250.52(A)(4) providing
that it does not extend to other types of electrodes that require a larger size conductor. The same maximum size limits also apply to bonding jumpers
attached to ground ring electrode systems.
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First Revision No. 1228-NFPA 70-2015 [ Section No. 250.68(C) ]
(C) Grounding Electrode Connections.
Grounding electrode conductors and bonding jumpers shall be permitted to be connected at the following locations and used to extend the
connection to an electrode(s):
(1) Interior metal water piping shall be located not more than 1.52 m (5 ft) from the point of entrance to the building shall be permitted to be
used as a conductor to interconnect electrodes that are part of the grounding electrode system.
Exception: In industrial, commercial, and institutional buildings or structures, if conditions of maintenance and supervision ensure that only
qualified persons service the installation, interior metal water piping located more than 1.52 m (5 ft) from the point of entrance to the
building shall be permitted as a bonding conductor to interconnect electrodes that are part of the grounding electrode system, or as a
grounding electrode conductor, if the entire length, other than short sections passing perpendicularly through walls, floors, or ceilings, of
the interior metal water pipe that is being used for the conductor is exposed.
(2) The metal structural frame of a building shall be permitted to be used as a conductor to interconnect electrodes that are part of the
grounding electrode system, or as a grounding electrode conductor. Hold-down bolts securing the structural steel column that are
connected to a concrete-encased electrode that complies with 250.52(A)(3) and is located in the support footing or foundation shall be
permitted to connect the metal structural frame of a building or structure to the concrete encased grounding electrode. The hold-down bolts
shall be connected to the concrete-encased electrode by welding, exothermic welding, the usual steel tie wires, or other approved means.
(3) A rebar type concrete-encased electrode of either the conductor type, reinforcing rod or bar installed in accordance with 250.52(A)(3)with
an additional rebar section extended from its location within the concrete to an accessible location above the concrete that is not subject to
corrosion shall be permitted for connection of the grounding electrode conductor. The rebar extention shall not be exposed to contact with
the earth without corrosion protection .
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:10:00 EST 2015
Committee Statement
Committee
Statement:
The revised text simplifies the statement of a location and the requirement that the connection for the grounding electrode conductor or the
bonding jumpers used to interconnect electrodes shall be to interior metal water piping not extending more than five feet into the building.
The permission to do this comes from the charging statement and does not need to be repeated. The exception, without revision then
extends this location allowance under the conditions specified.
(2) The text added to 250.68(C)(2) is being relocated from 250.52(A)(2) as it is no longer appropriate for that section but adds clarity to this
section and should be preserved as a permitted connection method.
(3) Revised the text to remove redundant language already covered in 250.52(A)(3). The text was revised to apply to the rebar or rod type of
concrete encased electrodes as intended and to provide additional requirements to be installed in such a manner to prevent any corrosion
due to contact with the earth.
Response
Message:
Public Input No. 3317-NFPA 70-2014 [Section No. 250.68(C)]
Public Input No. 2768-NFPA 70-2014 [Section No. 250.68(C)]
Public Input No. 1429-NFPA 70-2014 [Section No. 250.68(C)]
Public Input No. 1235-NFPA 70-2014 [Section No. 250.68(C)]
Public Input No. 4796-NFPA 70-2014 [Section No. 250.68(C)]
Public Input No. 4537-NFPA 70-2014 [Section No. 250.68(C)]
Ballot Results
283 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
6 Affirmative All
11 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
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Beckstrand, Gary A.
Dobrowsky, Paul
Helfrich, William J.
Porter, Christine T.
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Bowmer, Trevor N.
The words “shall be” were incorrectly inserted between “piping” and “located”. As currently written in Terraview, this statement would incorrectly require the
water pipe to be located within five feet of the service entry to the building.
Brett, Jr., Martin J.
250.68)C)(1) The words “shall be” were incorrectly inserted between “piping” and “located”. This is to be statement for where a connection is made, as
written the water pipe is now located within five feet of the entry to the building.
Edwards, Timothy
See attached errata
Harding, G. Scott
The words “shall be” were incorrectly inserted between “piping” and “located”. This is to be statement for where a connection is made, as written the water
pipe is now located within five feet of the entry to the building.
Harding, Joseph
FR 1228 for section 250.68)C) a) The words “shall be” were incorrectly inserted between “piping” and “located”. This is to be statement for where a
connection is made, as written the water pipe is now located within five feet of the entry to the building.
Mello, Charles F.
The words "shall be" were inserted into 250.68(C)(1), different than what the panel acted, which is a list item to identify a location. The text now effectively
requires the water pipe to be located within 5 feet to the entry to the building. The text is intended to a a location identifer for the attachement of grounding
electrode conductors or bonding jumpers as follows: 250.68(C)(1) Interior metal water piping located not more than 1.52 m (5 ft) from the point of entrance
to the building. The remainder of the first revision text to remain without correction.
Mohla, Daleep C.
a) The words “shall be” were incorrectly inserted between “piping” and “located”. This is to be statement for where a connection is made, as written the
water pipe is now located within five feet of the entry to the building.
O'Meara, Mike
a) The words “shall be” were incorrectly inserted between “piping” and “located”. This is to be statement for where a connection is made, as written the
water pipe is now located within five feet of the entry to the building.
Palmieri, Charles J.
8. FR 1228 for section 250.68)C) a) The words “shall be” were incorrectly inserted between “piping” and “located”. This is to be statement for where a
connection is made, as written the water pipe is now located within five feet of the entry to the building.
Philips, Nathan
Section 250.68)C) a) The words “shall be” were incorrectly inserted between “piping” and “located”. This is to be statement for where a connection is
made, as written the water pipe is now located within five feet of the entry to the building.
Sasso, Nick
A rebar type concrete-encased electrode of either the conductor type, reinforcing rod or bar installed in accordance with 250.52(A)(3)with an additional
rebar section extended from its location within the concrete to an accessible location above the concretethat is not subject to corrosion shall be permitted
for connection of the grounding electrode conductor. The rebar extention shall not be exposed to contact with the earth without corrosion protection.*******
Suggestion - ADD after last sentence - "Additionally, if the point at which the grounding electrode conductor attaches to the rebar extention is exposed to
weather, corrosion protection shall also be provided at that point."
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First Revision No. 1206-NFPA 70-2015 [ Section No. 250.80 ]
250.80 Service Raceways and Enclosures.
Metal enclosures and raceways for service conductors and equipment shall be connected to the grounded system conductor if the electrical
system is grounded or to the grounding electrode conductor for electrical systems that are not grounded.
Exception: A metal Metal components elbow that is are installed in an a run of underground nonmetallic raceway(s) and is are isolated from
possible contact by a minimum cover of 450 mm (18 in.) to any part to all parts of the elbow metal components shall not be required to be
connected to the grounded system conductor, supply side bonding jumper, or grounding electrode conductor.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 16:38:36 EST 2015
Committee Statement
Committee
Statement:
The intent of this section is that no part of the metal elbow or other metal components be covered by less than 18 inches of earth or other
material to prevent inadvertent contact. The revised text clarifies that all metal components installed in non-metallic raceways are required
to be covered and not just a part to meet the intended requirement.
Response
Message:
Public Input No. 363-NFPA 70-2014 [Section No. 250.80]
Ballot Results
285 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
15 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
Mello, Charles F.
This panel action also had a change to 250.86 to provide consistency and parallel language. The revision to 250.86 should read as follows: 250.86(4)
Exception No. 3. Metal components shall not be required to be connected to the equipment grounding conductor or supply side bonding jumper where
installed in a run of nonmetallic raceway(s) and are isolated from possible contact by a minimum cover of 450 mm (18 in.) to any part of the metal
components or is are encased in not less than 50 mm (2 in.) of concrete.
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First Revision No. 1215-NFPA 70-2015 [ Section No. 250.94 ]
250.94 Bonding for Other Communication Systems.
Communications system bonding terminations shall be connected in accordance with (A) or (B).
(A) The Intersystem Bonding Termination Device.
An intersystem bonding termination (IBT) for connecting intersystem bonding conductors required for other systems conductors shall be provided
external to enclosures at the service equipment or metering equipment enclosure and at the disconnecting means for any additional buildings or
structures. The intersystem bonding termination If an IBT is used, it shall comply with the following:
(1) Be accessible for connection and inspection.
(2) Consist of a set of terminals with the capacity for connection of not less than three intersystem bonding conductors.
(3) Not interfere with opening the enclosure for a service, building or structure disconnecting means, or metering equipment.
(4) At the service equipment, be securely mounted and electrically connected to an enclosure for the service equipment, to the meter
enclosure, or to an exposed nonflexible metallic service raceway, or be mounted at one of these enclosures and be connected to the
enclosure or to the grounding electrode conductor with a minimum 6 AWG copper conductor
(5) At the disconnecting means for a building or structure, be securely mounted and electrically connected to the metallic enclosure for the
building or structure disconnecting means, or be mounted at the disconnecting means and be connected to the metallic enclosure or to the
grounding electrode conductor with a minimum 6 AWG copper conductor.
(6) The terminals shall be listed as grounding and bonding equipment.
Exception: In existing buildings or structures where any of the intersystem bonding and grounding electrode conductors required by
770.100(B)(2) , 800.100(B)(2), 810.21(F)(2) , 820.100(B)(2) , and 830.100(B)(2) exist, installation of the intersystem bonding termination is not
required. An accessible means external to enclosures for connecting intersystem bonding and grounding electrode conductors shall be
permitted at the service equipment and at the disconnecting means for any additional buildings or structures by at least one of the following
means:
(1) Exposed nonflexible metallic raceways
(2) An exposed grounding electrode conductor
(3) Approved means for the external connection of a copper or other corrosion-resistant bonding or grounding electrode conductor to the
grounded raceway or equipment
Informational Note No. 1: A 6 AWG copper conductor with one end bonded to the grounded nonflexible metallic raceway or equipment and
with 150 mm (6 in.) or more of the other end made accessible on the outside wall is an example of the approved means covered in
250.94 , Exception item (3).
Informational Note No. 2: See 770.100, 800.100, 810.21 , 820.100 , and 830.100 for intersystem bonding and grounding requirements for
conductive optical fiber cables, communications circuits, radio and television equipment, CATV circuits and network-powered broadband
communications systems, respectively.
(B) Other Means.
Connections to an aluminum or copper busbar not less than 6 mm thick × 50 mm wide ( 1 ⁄4 in. thick × 2 in. wide) and of sufficient length to
accommodate at least three terminations for communication systems in addition to other connections. The busbar shall be securely fastened
and shall be installed in an accessible location. Connections shall be made by a listed connector. If aluminum busbars are used, the installation
shall also comply with 250.64(A) .
Exception to (A) and (B): Means for connecting intersystem bonding conductors are not required where communications systems are not
likely to be used.
Informational Note: The use of an IBT can reduce electrical noise on communication systems.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 12:39:35 EST 2015
Committee Statement
286 of 1802
Committee
Statement:
The alternate connection option allows connections to be made on a common bus bar with other bonding jumpers. This method is often
used in commercial or multifamily mixed use buildings. The addition of the informational note alerts users about potential noise on the
systems
Structures such as outhouses, some chicken coops or garden sheds, etc. will not need an IBT.
Response
Message:
Public Input No. 2889-NFPA 70-2014 [Section No. 250.94]
Public Input No. 702-NFPA 70-2014 [Section No. 250.94]
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Ballot Results
287 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
8 Affirmative All
9 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Dobrowsky, Paul
Helfrich, William J.
Mello, Charles F.
Philips, Nathan
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Bowmer, Trevor N.
The text and underlining in TerraView is correct, as well as the panel statement. Item #1 - There is no mention of several resolved PIs in message. The
following PIs need to be added at the Response Message portion: Public Input No 436 Public Input No 3837 Pubic Input No 3708 Item #2 - There was
some confusion if this change was under FR-1215 or FR-1232. The change shown in current Terra FR-1232 modifying 250.24C needs to be retained as a
separate FR item. Both the changes shown for FR-1215 and FR-1232 need to be done (a) The revisions as shown in Terraview under FR-1215 for 250.94
(b) The change (600 to 1000 volts) in 250.24(C).
Brett, Jr., Martin J.
250.94 The FR the committee acted on was FR1232, The text and underlining in TerraView is correct, as well as the panel statement. There is no mention
of the resolved PI in response message. The following PIs may need to be added at the Response Message portion: Public Input No 436 NFPA 70-2014
[Section No 250.94] Public Input No 3837 NFPA 70-2014 [Section No 250.94] Pubic Input No 3708 NFPA 70-2014 [Section No 250.94]
Edwards, Timothy
See attached errata
Harding, Joseph
FR 1215 – 250.94 The FR the committee acted on was FR1232, The text and underlining in TerraView is correct, as well as the panel statement. There is
no mention of the resolved PI in response message. The following PIs may need to be added at the Response Message portion: Public Input No 436 NFPA
70-2014 [Section No 250.94] Public Input No 3837 NFPA 70-2014 [Section No 250.94] Pubic Input No 3708 NFPA 70-2014 [Section No 250.94]
Harding, G. Scott
250.94 The FR the committee acted on was FR1232, The text and underlining in TerraView is correct, as well as the panel statement. There is no mention
of the resolved PI in response message. The following PIs may need to be added at the Response Message portion: Public Input No 436 NFPA 70-2014
[Section No 250.94] Public Input No 3837 NFPA 70-2014 [Section No 250.94] Pubic Input No 3708 NFPA 70-2014 [Section No 250.94]
Mohla, Daleep C.
The FR the committee acted on was FR1232, The text and underlining in TerraView is correct, as well as the panel statement. There is no mention of the
resolved PI in response message. The following PIs may need to be added at the Response Message portion: Public Input No 436 NFPA 70-2014 [Section
No 250.94] Public Input No 3837 NFPA 70-2014 [Section No 250.94] Pubic Input No 3708 NFPA 70-2014 [Section No 250.94]
O'Meara, Mike
The FR the committee acted on was FR1232, The text and underlining in TerraView is correct, as well as the panel statement. There is no mention of the
resolved PI in response message. The following PIs may need to be added at the Response Message portion: Public Input No 436 NFPA 70-2014 [Section
No 250.94] Public Input No 3837 NFPA 70-2014 [Section No 250.94] Pubic Input No 3708 NFPA 70-2014 [Section No 250.94] FR 7509 250.102 (in
TerraView) should have been noted as FR 1233. It is correct for section 250.102. This does not include the work in FR 1234 that the panel accepted for
Table 250.102(C)(1). NONE of the work on the Table shows up in TerraView. The panel re-ordered the notes to make it clear when they apply.
Palmieri, Charles J.
250.94 The FR the committee acted on was FR1232, The text and underlining in TerraView is correct, as well as the panel statement. There is no mention
of the resolved PI in response message. The following PIs may need to be added at the Response Message portion: Public Input No 436 NFPA 70-2014
[Section No 250.94] Public Input No 3837 NFPA 70-2014 [Section No 250.94] Pubic Input No 3708 NFPA 70-2014 [Section No 250.94]
Porter, Christine T.
FR 1215 – 250.94 The FR the committee acted on was FR1232, The text and underlining in TerraView is correct, as well as the panel statement. There is
no mention of the resolved PI in response message. The following PIs may need to be added at the Response Message portion: Public Input No 436 NFPA
70-2014 [Section No 250.94] Public Input No 3837 NFPA 70-2014 [Section No 250.94] Pubic Input No 3708 NFPA 70-2014 [Section No 250.94]
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First Revision No. 7509-NFPA 70-2015 [ Section No. 250.102 ]
250.102 Bonding Conductors and Jumpers. Grounded Conductor, Bonding Conductors, and Jumpers.
(A) Material.
Bonding jumpers shall be of copper, aluminum, copper-clad aluminum , or other corrosion-resistant material. A bonding jumper shall be a wire,
bus, screw, or similar suitable conductor.
(B) Attachment.
Bonding jumpers shall be attached in the manner specified by the applicable provisions of 250.8 for circuits and equipment and by 250.70 for
grounding electrodes.
(C) Size — Supply-Side Bonding Jumper.
(1) Size for Supply Conductors in a Single Raceway or Cable.
The supply-side bonding jumper shall not be smaller than specified in Table 250.102(C)(1) .
(2) Size for Parallel Conductor Installations in Two or More Raceways or Cables .
Where the ungrounded supply conductors are paralleled in two or more raceways or cables, and an individual supply-side bonding jumper is
used for bonding these raceways or cables, the size of the supply-side bonding jumper for each raceway or cable shall be selected from Table
250.102(C)(1) based on the size of the ungrounded supply conductors in each raceway or cable. A single supply-side bonding jumper installed
for bonding two or more raceways or cables shall be sized in accordance with 250.102(C)(1) .
Informational Note: The term supply conductors includes ungrounded conductors that do not have overcurrent protection on their supply
side and terminate at service equipment or the first disconnecting means of a separately derived system.
Table 250.102(C)(1) Grounded Conductor, Main Bonding Jumper, System Bonding Jumper, and Supply-Side Bonding Jumper for AlternatingCurrent Systems
Size of Largest Ungrounded Conductor or Equivalent Area for Parallel
Conductors
(AWG/kcmil)
Copper
Aluminum or Copper-Clad Aluminum
Size of Grounded Conductor or Bonding Jumper*
(AWG/kcmil)
Copper
Aluminum or Copper-Clad Aluminum
2 or smaller
1/0 or smaller
8
6
1 or 1/0
2/0 or 3/0
6
4
2/0 or 3/0
4/0 or 250
4
2
Over 3/0 through 350
Over 250 through 500
2
1/0
Over 350 through 600
Over 500 through 900
1/0
3/0
Over 600 through 1100
Over 900 through 1750
2/0
Over 1100
Over 1750
4/0
See Notes
Notes:
1. If the ungrounded supply conductors are larger than 1100 kcmil copper or 1750 kcmil aluminum, the grounded conductor or bonding jumper
shall have an area not less than 12 1⁄2 percent of the area of the largest ungrounded supply conductor or equivalent area for parallel supply
conductors. The grounded conductor or bonding jumper shall not be required to be larger than the largest ungrounded conductor or set of
ungrounded conductors.
2. If the ungrounded supply conductors and the bonding jumper are of different materials (copper, aluminum, or copper-clad aluminum), the
minimum size of the grounded conductor or bonding jumper shall be based on the assumed use of ungrounded supply conductors of the same
material as the grounded conductor or bonding jumper and will have an ampacity equivalent to that of the installed ungrounded supply
conductors.
3. If multiple sets of service-entrance conductors are used as permitted in 230.40, Exception No. 2, or if multiple sets of ungrounded supply
conductors are installed for a separately derived system, the equivalent size of the largest ungrounded supply conductor(s) shall be determined
by the largest sum of the areas of the corresponding conductors of each set.
4. If there are no service-entrance conductors, the supply conductor size shall be determined by the equivalent size of the largest serviceentrance conductor required for the load to be served.
*For the purposes of this table, the term bonding jumper refers to main bonding jumpers, system bonding jumpers, and supply-side bonding
jumpers.
Informational Note: See Chapter 9, Table 8, for the circular mil area of conductors 18 AWG through 4/0 AWG.
(D) Size — Equipment Bonding Jumper on Load Side of an Overcurrent Device.
The equipment bonding jumper on the load side of an overcurrent device(s) shall be sized in accordance with 250.122 .
A single common continuous equipment bonding jumper shall be permitted to connect two or more raceways or cables if the bonding jumper is
sized in accordance with 250.122 for the largest overcurrent device supplying circuits therein.
(E) Installation.
Bonding jumpers or conductors and equipment bonding jumpers shall be permitted to be installed inside or outside of a raceway or an enclosure.
(1) Inside a Raceway or an Enclosure.
If installed inside a raceway, equipment bonding jumpers and bonding jumpers or conductors shall comply with the requirements of 250.119 and
250.148.
(2) Outside a Raceway or an Enclosure.
If installed on the outside, the length of the bonding jumper or conductor or equipment bonding jumper shall not exceed 1.8 m (6 ft) and shall be
routed with the raceway or enclosure.
Exception: An equipment bonding jumper or supply-side bonding jumper longer than 1.8 m (6 ft) shall be permitted at outside pole locations for
the purpose of bonding or grounding isolated sections of metal raceways or elbows installed in exposed risers of metal conduit or other metal
raceway, and for bonding grounding electrodes, and shall not be required to be routed with a raceway or enclosure.
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(3) Protection.
Bonding jumpers or conductors and equipment bonding jumpers shall be installed in accordance with 250.64(A) and (B).
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
NATIONAL FIRE PROTECTION ASSOC
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 23 10:44:33 EST 2015
Committee Statement
Committee
Statement:
This change harmonizes the title with the rest of the section, added “Cables” to list item (C)(2), and added aluminum and copper clad
aluminum to item A.
Response Message:
Public Input No. 1390-NFPA 70-2014 [Section No. 250.102(C)(2)]
Public Input No. 4540-NFPA 70-2014 [Section No. 250.102]
Public Input No. 1236-NFPA 70-2014 [Section No. 250.102]
Public Input No. 2778-NFPA 70-2014 [Section No. 250.102(A)]
Public Input No. 4186-NFPA 70-2014 [Section No. 250.102(C)(2)]
Public Input No. 3461-NFPA 70-2014 [Section No. 250.102(D)]
Ballot Results
289 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
6 Affirmative All
10 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Brett, Jr., Martin J.
Dobrowsky, Paul
Helfrich, William J.
O'Meara, Mike
Sasso, Nick
Steinman, Gregory J.
Affirmative with Comment
Beckstrand, Gary A.
The Notes to the Table do not reflect the revisions made by the Panel. The Notes should be as follows: Notes: 1. If multiple sets of service-entrance
conductors are used as permitted in 230.40, Exception No. 2, or if multiple sets of ungrounded supply conductors are installed for a separately derived
system, the equivalent size of the largest ungrounded supply conductor(s) shall be determined by the largest sum of the areas of the corresponding
conductors of each set. 4. 2 1If there are no service-entrance conductors, the supply conductor size shall be determined by the equivalent size of the
largest service entrance conductor required for the load to be served. 3. If the ungrounded supply conductors are larger than 1100 kcmil copper or 1750
kcmil aluminum, the grounded conductor or bonding jumper shall have an area not less than 12 1?2 percent of the area of the largest ungrounded supply
conductor or equivalent area for parallel supply conductors. The grounded conductor or bonding jumper shall not be required to be larger than the largest
ungrounded conductor or set of ungrounded conductors. 4. If the ungrounded supply conductors are larger than 1100 kcmil copper or 1750 kcmil aluminum
and if the ungrounded supply conductors and the bonding jumper are of different materials (copper, aluminum, or copper-clad aluminum), the minimum size
of the grounded conductor or bonding jumper shall be based on the assumed use of ungrounded supply conductors of the same material as the grounded
conductor or bonding jumper and will have an ampacity equivalent to that of the installed ungrounded supply conductors. *For the purposes of applying this
table and its notes, the term bonding jumper refers to main bonding jumpers, system bonding jumpers, and supply-side bonding jumpers. Additionally, the
Panel voted in favor of adding lines in the Table.
Bowmer, Trevor N.
This change does not include the actions(in FR 1234) that the panel accepted for Table 250.102(C)(1). None of the work on the Table shows up in
TerraView. The panel re-ordered the notes to make it clear when they apply.
Edwards, Timothy
See attached errata
Harding, G. Scott
250.102 (in TerraView) should have been noted as FR 1233. It is correct for section 250.102. This does not include the work in FR 1234 that the panel
accepted for Table 250.102(C)(1). NONE of the work on the Table shows up in TerraView. The panel re-ordered the notes to make it clear when they apply.
Harding, Joseph
FR 7509 250.102 (in TerraView) should have been noted as FR 1233. It is correct for section 250.102. This does not include the work in FR 1234 that the
panel accepted for Table 250.102(C)(1). NONE of the work on the Table shows up in TerraView. The panel re-ordered the notes to make it clear when they
apply.
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Mello, Charles F.
The only change to the section 250.102 Title was to add "Grounded Conductor," The terms "Bonding Conductors, and Jumpers" is existing text and should
not be underlined. The panel took action to modifiy Table 250.102(C)(1) and notes. The table should reference notes 3 and 4 for conductors over 1100
kcmil copper or 1750 kcmil Aluminum and the notes were rearranged as follows: Notes: 1. If multiple sets of service-entrance conductors are used as
permitted in 230.40, Exception No. 2, or if multiple sets of ungrounded supply conductors are installed for a separately derived system, the equivalent size
of the largest ungrounded supply conductor(s) shall be determined by the largest sum of the areas of the corresponding conductors of each set. 2 1If there
are no service-entrance conductors, the supply conductor size shall be determined by the equivalent size of the largest service entrance conductor required
for the load to be served. 3. If the ungrounded supply conductors are larger than 1100 kcmil copper or 1750 kcmil aluminum, the grounded conductor or
bonding jumper shall have an area not less than 12 1?2 percent of the area of the largest ungrounded supply conductor or equivalent area for parallel
supply conductors. The grounded conductor or bonding jumper shall not be required to be larger than the largest ungrounded conductor or set of
ungrounded conductors. 4. If the ungrounded supply conductors are larger than 1100 kcmil copper or 1750 kcmil aluminum and if the ungrounded supply
conductors and the bonding jumper are of different materials (copper, aluminum, or copper-clad aluminum), the minimum size of the grounded conductor or
bonding jumper shall be based on the assumed use of ungrounded supply conductors of the same material as the grounded conductor or bonding jumper
and will have an ampacity equivalent to that of the installed ungrounded supply conductors. *For the purposes of applying this table and its notes, the term
bonding jumper refers to main bonding jumpers, system bonding jumpers, and supply-side bonding jumpers. The table with edits is provided in separate
documentation as it cannot be inserted into the comment of the ballot.
Mohla, Daleep C.
FR 7509 250.102 (in TerraView) should have been noted as FR 1233. It is correct for section 250.102. This does not include the work in FR 1234 that the
panel accepted for Table 250.102(C)(1). NONE of the work on the Table shows up in TerraView. The panel re-ordered the notes to make it clear when they
apply.
Palmieri, Charles J.
FR 7509 250.102 (in Terra View) should have been noted as FR 1233. It is correct for section 250.102. This does not include the work in FR 1234 that the
panel accepted for Table 250.102(C)(1). NONE of the work on the Table shows up in TerraView. The panel re-ordered the notes to make it clear when they
apply.
Philips, Nathan
250.102 (in TerraView) should have been noted as FR 1233. It is correct for section 250.102. This does not include the work in FR 1234 that the panel
accepted for Table 250.102(C)(1). NONE of the work on the Table shows up in TerraView. The panel re-ordered the notes to make it clear when they apply.
Porter, Christine T.
FR 7509 250.102 (in TerraView) should have been noted as FR 1233. It is correct for section 250.102. This does not include the work in FR 1234 that the
panel accepted for Table 250.102(C)(1). NONE of the work on the Table shows up in TerraView. The panel re-ordered the notes to make it clear when they
apply.
Negative with Comment
Simmons, Phil
CDA votes negative on the Panel action on this Public Input. Reasons for this negative vote include: 1. The substantiation provided by the Panel does not
support the changes made. Under the NFPA Regulations, the Panel has an obligation to provide adequate substantiation to support its actions. 2. There
was no substantiation provided to document that aluminum and copper-clad aluminum conductor materials are equal to that of copper. In addition, the
NFPA ballot does not include the changes made to the Notes below Table 250.102(C)(1). The notes and footnote should read as follows: “1. If multiple sets
of service-entrance conductors are used as permitted in 230.40, Exception No. 2, or if multiple sets of ungrounded supply conductors are installed for a
separately derived system, the equivalent size of the largest ungrounded supply conductor(s) shall be determined by the largest sum of the areas of the
corresponding conductors of each set. 2. If there are no service-entrance conductors, the supply conductor size shall be determined by the equivalent size
of the largest service entrance conductor required for the load to be served. 3. If the ungrounded supply conductors are larger than 1100 kcmil copper or
1750 kcmil aluminum, the grounded conductor or bonding jumper shall have an area not less than 12 1?2 percent of the area of the largest ungrounded
supply conductor or equivalent area for parallel supply conductors. The grounded conductor or bonding jumper shall not be required to be larger than the
largest ungrounded conductor or set of ungrounded conductors. 4. If the ungrounded supply conductors are larger than 1100 kcmil copper or 1750 kcmil
aluminum and if the ungrounded supply conductors and the bonding jumper are of different materials (copper, aluminum, or copper-clad aluminum), the
minimum size of the grounded conductor or bonding jumper shall be based on the assumed use of ungrounded supply conductors of the same material as
the grounded conductor or bonding jumper and will have an ampacity equivalent to that of the installed ungrounded supply conductors. *For the purposes
of applying this table and its notes, the term bonding jumper refers to main bonding jumpers, system bonding jumpers, and supply-side bonding jumpers.”
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First Revision No. 1216-NFPA 70-2015 [ Section No. 250.104 ]
250.104 Bonding of Piping Systems and Exposed Structural Metal.
(A) Metal Water Piping.
The metal water piping system shall be bonded as required in (A)(1), (A)(2), or (A)(3) of this section. The bonding jumper(s) shall be installed in
accordance with 250.64(A) , (B), and (E). The points of attachment of the bonding jumper(s) shall be accessible.
(1) General.
Metal water piping system(s) installed in or attached to a building or structure shall be bonded to any of the following:
(1) Service equipment enclosure, the grounded
(2) Grounded conductor at the service, the grounding
(3) Grounding electrode conductor where of sufficient size or to the one or
(4) One or more grounding electrodes used.
The bonding jumper(s) shall be sized in accordance with 250.64(A) , 250.64(B) , and 250.64(E) . The points of attachment of the bonding
jumper(s) shall be accessible. The bonding jumper(s) shall be sized in accordance with Table 250.102(C)(1) except as permitted in
250.104(A)(2) and 250.104(A)(3) .
(2) Buildings of Multiple Occupancy.
In buildings of multiple occupancy where the metal water piping system(s) installed in or attached to a building or structure for the individual
occupancies is metallically isolated from all other occupancies by use of nonmetallic water piping, the metal water piping system(s) for each
occupancy shall be permitted to be bonded to the equipment grounding terminal of the switchgear, switchboard, or panelboard enclosure (other
than service equipment) supplying that occupancy. The equipment bonding jumper shall be sized in accordance with Table
250.122 250.102(D) , based on the rating of the overcurrent protective device for the circuit supplying the occupancy .
(3) Multiple Buildings or Structures Supplied by a Feeder(s) or Branch Circuit(s).
The metal water piping system(s) installed in or attached to a building or structure shall be bonded to the building any of the following:
(a) Building or structure disconnecting means enclosure where located at the building or structure
(b) to the e Equipment grounding conductor run with the supply conductors
(c) or to the one One or more grounding electrodes used, if the grounding electrode conductor or bonding jumper to the grounding electrode is
of sufficient size
The bonding jumper(s) shall be sized in accordance with Table 250.102(C)(1) 250.66 , based on the size of the feeder or branch-circuit
conductors that supply the building or structure. The bonding jumper shall not be required to be larger than the largest ungrounded feeder or
branch-circuit conductor supplying the building or structure.
(B) Other Metal Piping.
If installed in, or attached to, a building or structure, a metal piping system(s), including gas piping, that is likely to become energized shall be
bonded to any of the following:
(1) Equipment grounding conductor for the circuit that is likely to energize the piping system
(2) Service equipment enclosure
(3) Grounded conductor at the service
(4) Grounding electrode conductor, if of sufficient size
(5) One or more grounding electrodes used, if the grounding electrode conductor or bonding jumper to the grounding electrode is of sufficient
size
The bonding conductor(s) or jumper(s) shall be sized in accordance with Table 250.102(C)(1) 250.122 , and equipment grounding conductors
shall be sized in accordance with Table 250.122 using the rating of the circuit that is likely to energize the piping system(s). The points of
attachment of the bonding jumper(s) shall be accessible.
Informational Note No. 1: Bonding all piping and metal air ducts within the premises will provide additional safety.
Informational Note No. 2: Additional information for gas piping systems can be found in Section 7.13 of NFPA 54-2012, National Fuel Gas
Code.
(C) Structural Metal.
Exposed structural Structural metal that is interconnected to form a metal building frame and is not is not intentionally grounded or bonded and
is likely to become energized shall be bonded to the service equipment enclosure; the grounded to any of the following:
(1) Service equipment enclosure
(2) Grounded conductor at the service
(3) Disconnecting means for buildings or structures supplied by a feeder or branch circuit; the grounding
(4) Grounding electrode conductor, if of sufficient size; or to one or
(5) One or more grounding electrodes used. , if the grounding electrode conductor or bonding jumper to the grounding electrode is of sufficient
size
The bonding jumper(s) shall be sized in accordance with Table 250.66 and installed in accordance with 250.64(A) , (B), and (E). The points of
attachment of the bonding jumper(s) shall be accessible unless installed in compliance with 250.68(A) Exception No. 2.
Table 250.66 250.64(A) , (B), and (E) 250.68(A)
(D) Separately Derived Systems.
Metal water piping systems and structural metal that is interconnected to form a building frame shall metal shall be bonded to separately derived
systems in accordance with 250.104(D)(1) through 250.104(D)(3)
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(1) Metal Water Piping System(s).
The grounded conductor of each separately derived system shall be bonded to the nearest available point of the metal water piping system(s) in
the area served by each separately derived system. This connection shall be made at the same point on the separately derived system where the
grounding electrode conductor is connected. Each bonding jumper shall be sized in accordance with Table 250.66 Table 250.102(C)(1) based on
the largest ungrounded conductor of the separately derived system.
Exception No. 1: A separate bonding jumper to the metal water piping system shall not be required where the metal water piping system is
used as the grounding electrode for the separately derived system and the water piping system is in the area served.
Exception No. 2: A separate water piping bonding jumper shall not be required where the metal frame of a building or structure is used as the
grounding electrode for a separately derived system and is bonded to the metal water piping in the area served by the separately derived
system.
(2) Structural Metal.
Where exposed structural metal that is interconnected to form the building frame exists If structural metal exists in the area served by the
separately derived system, it shall be bonded to the grounded conductor of each separately derived system. This connection shall be made at
the same point on the separately derived system where the grounding electrode conductor is connected. Each bonding jumper shall be sized in
accordance with Table 250.66 Table 250.102(C)(1) based on the largest ungrounded conductor of the separately derived system.
Exception No. 1: A separate bonding jumper to the building structural metal shall not be required where the metal frame of a building or
structure is used as the grounding electrode for the separately derived system.
Exception No. 2: A separate bonding jumper to the building structural metal shall not be required where the water piping of a building or
structure is used as the grounding electrode for a separately derived system and is bonded to the building structural metal in the area served by
the separately derived system.
(3) Common Grounding Electrode Conductor.
Where a common grounding electrode conductor is installed for multiple separately derived systems as permitted by 250.30(A)(6) , and exposed
structural metal that is interconnected to form the building frame or and structural metal or interior metal piping exists in the area served by the
separately derived system, the metal piping and the structural metal member shall be bonded to the common grounding electrode conductor in
the area served by the separately derived system.
Exception: A separate bonding jumper from each derived system to metal water piping and to structural metal members shall not be required
where the metal water piping and the structural metal members in the area served by the separately derived system are bonded to the common
grounding electrode conductor.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 13:00:46 EST 2015
Committee Statement
Committee
Statement:
The revisions were made to put the requirements in list format to be consistent with 250.104(B). Editorial changes were made to
improve clarity.
Response Message:
Public Input No. 504-NFPA 70-2014 [Section No. 250.104]
Public Input No. 3210-NFPA 70-2014 [Section No. 250.104(B)]
Ballot Results
292 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
7 Affirmative All
10 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Dobrowsky, Paul
Helfrich, William J.
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Bowmer, Trevor N.
In the revised 250.104(A)(1) list the item (4) needs to have the additional wording added - “if the grounding electrode conductor or bonding jumper to the
grounding electrode is of sufficient size”.
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Brett, Jr., Martin J.
At 250.104(A)(1) list item (4)additional wording is missing that should read: “if the grounding electrode conductor or bonding jumper to the grounding
electrode is of sufficient size”. I could not find any record from Task Group three of any changes to 250.104(A)(2) but TerraView shows changes for bonding
of metal water piping in building of multiple occupancy. What we had “The bonding jumper shall be sized in accordance with Table 250.122 based on the
rating of the overcurrent device supplying the occupancy.” has been replaced with “The equipment bonding jumper shall be sized in accordance with Table
250.122 250.102(D), based on the rating of the overcurrent protective device for the circuit supplying the occupancy.” At 250/104(A)(3) there is missing
existing text that we struck out At 250.104(A)(3)(c) additional text has been added “if the grounding electrode conductor or bonding jumper to the grounding
electrode is of sufficient size” At the paragraph following 250/104(A)(3)(c) we had Table 250.66 referenced, it now shows as Table 250.102(C)(1) – which is
correct, not sure we voted on that however. Section 250.104(B) has been changed to reference sizing bonding conductors for other piping in accordance
with Table 250.102(C)(1) instead and in addition to Table 250.122 which is kept in this section only for sizing equipment grounding conductors (which
makes NO sense) 250.104(C) Structural Metal has changes in the main paragraph not shown in our summaries.
Edwards, Timothy
See attached errata
Harding, G. Scott
250.104 At 250.104(A)(1) list item (4)additional wording is missing that should read: “if the grounding electrode conductor or bonding jumper to the
grounding electrode is of sufficient size”. I could not find any record from Task Group three of any changes to 250.104(A)(2) but TerraView shows changes
for bonding of metal water piping in building of multiple occupancy. What we had “The bonding jumper shall be sized in accordance with Table 250.122
based on the rating of the overcurrent device supplying the occupancy.” has been replaced with “The equipment bonding jumper shall be sized in
accordance with 250.102(D). At 250/104(A)(3) there is missing existing text that we struck out At 250.104(A)(3)(c) additional text has been added “if the
grounding electrode conductor or bonding jumper to the grounding electrode is of sufficient size” At the paragraph following 250/104(A)(3)(c) we had Table
250.66 referenced, it now shows as Table 250.102(C)(1) – which is correct, not sure we voted on that however. Section 250.104(B) has been changed to
reference sizing bonding conductors for other piping in accordance with Table 250.102(C)(1) instead and in addition to Table 250.122 which is kept in this
section only for sizing equipment grounding conductors (which makes NO sense) 250.104(C) Structural Metal has changes in the main paragraph not
shown in our summaries.
Harding, Joseph
FR 1216 250.104 At 250.104(A)(1) list item (4)additional wording is missing that should read: “if the grounding electrode conductor or bonding jumper to
the grounding electrode is of sufficient size”. I could not find any record from Task Group three of any changes to 250.104(A)(2) but TerraView shows
changes for bonding of metal water piping in building of multiple occupancy. What we had “The bonding jumper shall be sized in accordance with Table
250.122 based on the rating of the overcurrent device supplying the occupancy.” has been replaced with “The equipment bonding jumper shall be sized in
accordance with Table 250.122 250.102(D), based on the rating of the overcurrent protective device for the circuit supplying the occupancy.” At
250/104(A)(3) there is missing existing text that we struck out At 250.104(A)(3)(c) additional text has been added “if the grounding electrode conductor or
bonding jumper to the grounding electrode is of sufficient size” At the paragraph following 250/104(A)(3)(c) we had Table 250.66 referenced, it now shows
as Table 250.102(C)(1) – which is correct, not sure we voted on that however. Section 250.104(B) has been changed to reference sizing bonding
conductors for other piping in accordance with Table 250.102(C)(1) instead and in addition to Table 250.122 which is kept in this section only for sizing
equipment grounding conductors (which makes NO sense) 250.104(C) Structural Metal has changes in the main paragraph not shown in our summaries.
Mello, Charles F.
The text in the ballot is not as the panel completed actions. The changes to the sizing from Table 250.66 and Table 250.122 are incorrect and not
substatiated by the panel statement. The text as the panel acted is is provided in separate correspondence as it exceeded the capacity of the ballot.
Mohla, Daleep C.
FR 7509 250.102 (in TerraView) should have been noted as FR 1233. It is correct for section 250.102. This does not include the work in FR 1234 that the
panel accepted for Table 250.102(C)(1). NONE of the work on the Table shows up in TerraView. The panel re-ordered the notes to make it clear when they
apply.Table 250.122 250.102(D), based on the rating of the overcurrent protective device for the circuit supplying the occupancy.” At 250/104(A)(3) there is
missing existing text that we struck out At 250.104(A)(3)(c) additional text has been added “if the grounding electrode conductor or bonding jumper to the
grounding electrode is of sufficient size” At the paragraph following 250/104(A)(3)(c) we had Table 250.66 referenced, it now shows as Table 250.102(C)(1)
– which is correct, not sure we voted on that however. Section 250.104(B) has been changed to reference sizing bonding conductors for other piping in
accordance with Table 250.102(C)(1) instead and in addition to Table 250.122 which is kept in this section only for sizing equipment grounding conductors
(which makes NO sense) 250.104(C) Structural Metal has changes in the main paragraph not shown in our summaries.
O'Meara, Mike
250.104 At 250.104(A)(1) list item (4)additional wording is missing that should read: “if the grounding electrode conductor or bonding jumper to the
grounding electrode is of sufficient size”. I could not find any record from Task Group three of any changes to 250.104(A)(2) but TerraView shows changes
for bonding of metal water piping in building of multiple occupancy. What we had “The bonding jumper shall be sized in accordance with Table 250.122
based on the rating of the overcurrent device supplying the occupancy.” has been replaced with “The equipment bonding jumper shall be sized in
accordance with Table 250.122 250.102(D), based on the rating of the overcurrent protective device for the circuit supplying the occupancy.” At
250/104(A)(3) there is missing existing text that we struck out At 250.104(A)(3)(c) additional text has been added “if the grounding electrode conductor or
bonding jumper to the grounding electrode is of sufficient size” At the paragraph following 250/104(A)(3)(c) we had Table 250.66 referenced, it now shows
as Table 250.102(C)(1) – which is correct, not sure we voted on that however. Section 250.104(B) has been changed to reference sizing bonding
conductors for other piping in accordance with Table 250.102(C)(1) instead and in addition to Table 250.122 which is kept in this section only for sizing
equipment grounding conductors (which makes NO sense) 250.104(C) Structural Metal has changes in the main paragraph not shown in our summaries.
Palmieri, Charles J.
FR 1216 250.104 At 250.104(A)(1) list item (4)additional wording is missing that should read: “if the grounding electrode conductor or bonding jumper to
the grounding electrode is of sufficient size”. I could not find any record from Task Group three of any changes to 250.104(A)(2) but TerraView shows
changes for bonding of metal water piping in building of multiple occupancy. What we had “The bonding jumper shall be sized in accordance with Table
250.122 based on the rating of the overcurrent device supplying the occupancy.” has been replaced with “The equipment bonding jumper shall be sized in
accordance with Table 250.122 250.102(D), based on the rating of the overcurrent protective device for the circuit supplying the occupancy.” At
250/104(A)(3) there is missing existing text that we struck out At 250.104(A)(3)(c) additional text has been added “if the grounding electrode conductor or
bonding jumper to the grounding electrode is of sufficient size” At the paragraph following 250/104(A)(3)(c) we had Table 250.66 referenced, it now shows
as Table 250.102(C)(1) – which is correct, not sure we voted on that however. Section 250.104(B) has been changed to reference sizing bonding
conductors for other piping in accordance with Table 250.102(C)(1) instead and in addition to Table 250.122 which is kept in this section only for sizing
equipment grounding conductors (which makes NO sense) 250.104(C) Structural Metal has changes in the main paragraph not shown in our summaries.
Philips, Nathan
250.104 At 250.104(A)(1) list item (4)additional wording is missing that should read: “if the grounding electrode conductor or bonding jumper to the
grounding electrode is of sufficient size”. I could not find any record from Task Group three of any changes to 250.104(A)(2) but TerraView shows changes
for bonding of metal water piping in building of multiple occupancy. What we had “The bonding jumper shall be sized in accordance with Table 250.122
based on the rating of the overcurrent device supplying the occupancy.” has been replaced with “The equipment bonding jumper shall be sized in
accordance with Table 250.122 250.102(D), based on the rating of the overcurrent protective device for the circuit supplying the occupancy.” At
250/104(A)(3) there is missing existing text that we struck out At 250.104(A)(3)(c) additional text has been added “if the grounding electrode conductor or
bonding jumper to the grounding electrode is of sufficient size” At the paragraph following 250/104(A)(3)(c) we had Table 250.66 referenced, it now shows
as Table 250.102(C)(1) – which is correct, not sure we voted on that however. Section 250.104(B) has been changed to reference sizing bonding
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conductors for other piping in accordance with Table 250.102(C)(1) instead and in addition to Table 250.122 which is kept in this section only for sizing
equipment grounding conductors (which makes NO sense) 250.104(C) Structural Metal has changes in the main paragraph not shown in our summaries.
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First Revision No. 1229-NFPA 70-2015 [ Section No. 250.118 ]
250.118 Types of Equipment Grounding Conductors.
The equipment grounding conductor run with or enclosing the circuit conductors shall be one or more or a combination of the following:
(1) A copper, aluminum, or copper-clad aluminum conductor. This conductor shall be solid or stranded; insulated, covered, or bare; and in the
form of a wire or a busbar of any shape.
(2) Rigid metal conduit.
(3) Intermediate metal conduit.
(4) Electrical metallic tubing.
(5) Listed flexible metal conduit meeting all the following conditions:
a.
The conduit is terminated in listed fittings.
b.
The circuit conductors contained in the conduit are protected by overcurrent devices rated at 20 amperes or less.
c.
The size of the conduit does not exceed metric designator 35 (trade size 1 1⁄4).
d.
The combined length of flexible metal conduit and flexible metallic tubing and liquidtight flexible metal conduit in the same ground-fault
current path does not exceed 1.8 m (6 ft).
e.
If used to connect equipment where flexibility is necessary to minimize the transmission of vibration from equipment or to provide
flexibility for equipment that requires movement after installation, an equipment grounding conductor shall be installed.
(6) Listed liquidtight flexible metal conduit meeting all the following conditions:
a.
The conduit is terminated in listed fittings.
b.
For metric designators 12 through 16 (trade sizes 3⁄8 through
1
/ ), the circuit conductors contained in the conduit are protected by
2
overcurrent devices rated at 20 amperes or less.
c.
For metric designators 21 through 35 (trade sizes 3⁄4 through 11⁄4), the circuit conductors contained in the conduit are protected by
overcurrent devices rated not more than 60 amperes and there is no flexible metal conduit, flexible metallic tubing, or liquidtight flexible
metal conduit in trade sizes metric designators 12 through 16 (trade sizes 3⁄8 through 1⁄2) in the ground-fault current path.
d.
The combined length of flexible metal conduit and flexible metallic tubing and liquidtight flexible metal conduit in the same ground-fault
current path does not exceed 1.8 m (6 ft).
e.
If used to connect equipment where flexibility is necessary to minimize the transmission of vibration from equipment or to provide
flexibility for equipment that requires movement after installation, an equipment grounding conductor shall be installed.
(7) Flexible metallic tubing where the tubing is terminated in listed fittings and meeting the following conditions:
a.
The circuit conductors contained in the tubing are protected by overcurrent devices rated at 20 amperes or less.
b.
The combined length of flexible metal conduit and flexible metallic tubing and liquidtight flexible metal conduit in the same ground-fault
current path does not exceed 1.8 m (6 ft).
(8) Armor of Type AC cable as provided in 320.108 .
(9) The copper sheath of mineral-insulated, metal-sheathed cable Type MI.
(10) Type MC cable that provides an effective ground-fault current path in accordance with one or more of the following:
a.
It contains an insulated or uninsulated equipment grounding conductor in compliance with 250.118 (1).
b.
The combined metallic sheath and uninsulated equipment grounding/bonding conductor of interlocked metal tape–type MC cable that
is listed and identified as an equipment grounding conductor.
c.
The metallic sheath or the combined metallic sheath and equipment grounding conductors of the smooth or corrugated tube-type MC
cable that is listed and identified as an equipment grounding conductor.
(11) Cable trays as permitted in 392.10 and 392.60 .
(12) Cablebus framework as permitted in 370.60 (1).
(13) Other listed electrically continuous metal raceways and listed auxiliary gutters.
(14) Surface metal raceways listed for grounding.
Informational Note: For a definition of Effective Ground-Fault Current Path, see Article 100 .
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:17:31 EST 2015
Committee Statement
295 of 1802
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Committee
Statement:
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The UL listing for equipment grounding of Flexible Metal Conduit and the associated fittings have only been listed up to the metric
designator 35 (Trade size 1 1/4 ) for a number of years, see UL category code DXUZ.
Response
Message:
Public Input No. 3704-NFPA 70-2014 [Section No. 250.118]
Ballot Results
296 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 1230-NFPA 70-2015 [ Section No. 250.119(B) ]
(B) Multiconductor Cable.
Where the conditions of maintenance and supervision ensure that only qualified persons service the installation, one One or more insulated
conductors in a multiconductor cable, at the time of installation, shall be permitted to be permanently identified as equipment grounding
conductors at each end and at every point where the conductors are accessible by one of the following means:
(1) Stripping the insulation from the entire exposed length
(2) Coloring the exposed insulation green
(3) Marking the exposed insulation with green tape or green adhesive labels. Identification shall encircle the conductor.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:23:30 EST 2015
Committee Statement
Committee Statement: The revision to 250.119(B) was made to allow this requirement under all conditions. It is consistent with 200.7(C)
Response Message:
Public Input No. 3380-NFPA 70-2014 [Section No. 250.119(B)]
Public Input No. 3370-NFPA 70-2014 [Section No. 250.119(B)]
Ballot Results
297 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
14 Affirmative All
1 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
Negative with Comment
Beckstrand, Gary A.
The Panel should have resolved this Public input. Allowing the EGC to be re-identified in cables is a contradiction of the general rule in 250.119. The Panel
is clear that all EGCs are to identified with green, bare, or green with a yellow stripe. The elimination of the requirement for conditions of maintenance and
supervision to ensure a qualified person service the installation is a reduction in safety. Multiconductor cables are available with correctly identified
equipment grounding conductors. The proper cable should be used for the installation rather than re-identifying an equipment grounding conductor in the
field to make the wrong cable suitable for the installation. If this revision is allowed, an installed would be able to re-identify a red conductor of any size in a
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12/3 MC cable and use it for an isolated grounding conductor. This is not the intention of the panel.
Palmieri, Charles J.
The panel action on this PI should have been a resolve. The edit made to sub-part (B) of this section removes the limited application (originally an
exception)of identifying those colors that are traditionally associated with ungrounded conductors to the color green. This now provides unrestricted
re-identification of said colored conductors (black blue etc.) in all multi-wire cables in all locations as an equipment grounding conductor. Field makings are
a moving target. This expanded permissive language for conductors 6 AWG and smaller, can create a problem over time which will be exponentially
increased, especially in locations where premises maintenance is not limited to those who are familiar with local marking procedures (such as an industrial
location). One argument expressed during panel discussion included a reference to the language found in section 200.7 regarding re-identification and use
of a white (or gray) conductor as an ungrounded conductor. This is understandable, but in reality if a re-identified white conductor was inadvertently
connected to a grounded terminal or an energized terminal the failure would be limited to one branch circuit or feeder. A mistake with a conductor that is
intentionally connected to the system or structures non-current carrying metal parts is life threatening and may raise the potential on the entire structure
presenting a shock hazard (or worse). This hazard might migrate to other systems (such as chapter 8 wiring) that are permitted to be terminated to the
structures intersystem bond terminals as mentioned in 250.94. Once this permissive rule is extended to residential and commercial occupancies where the
lion share of the work is performed by pedestrian installers having no stake in the continued and safe operation of the facility or dwelling the monitoring of
that installation and its future modifications becomes untenable.
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First Revision No. 1231-NFPA 70-2015 [ Section No. 250.119(C) ]
(C) Flexible Cord.
An uninsulated equipment grounding conductor shall be permitted, but, if individually covered, the covering Equipment grounding conductors in
flexible cords shall be insulated and shall have a continuous outer finish that is either green or green with one or more yellow stripes.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:28:41 EST 2015
Committee Statement
Committee Statement: The revision to 250.119(C) aligns the language to the language found in the standard for flexible cords, UL 62 paragraph 4.1.1.8.1
Response Message:
Public Input No. 1696-NFPA 70-2014 [Section No. 250.119(C)]
Ballot Results
299 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 1235-NFPA 70-2015 [ Section No. 250.120(B) ]
(B) Aluminum and Copper-Clad Aluminum Conductors.
Equipment grounding conductors of bare or insulated aluminum or copper-clad aluminum shall be permitted. Bare conductors shall not come in
direct contact with masonry or the earth or where subject to corrosive conditions. Aluminum or copper-clad aluminum conductors shall not be
terminated within 450 mm (18 in.) of the earth. , unless the termination method is listed as a sealed wire-connector system. Terminations made
within listed enclosures suitable for outdoor use shall be permitted within 18 in. of the earth.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:40:10 EST 2015
Committee Statement
Committee Statement: This FR allows for the use of a suitable enclosure as well as a sealed wire connector system for Al connections within 18” of earth.
Response Message:
Public Input No. 4706-NFPA 70-2014 [Section No. 250.120(B)]
Public Input No. 1498-NFPA 70-2014 [Section No. 250.120(B)]
Public Input No. 4481-NFPA 70-2014 [Section No. 250.120(B)]
Ballot Results
300 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
13 Affirmative All
3 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Steinman, Gregory J.
Affirmative with Comment
Brett, Jr., Martin J.
I agree with Phil and believe that a reference should be made to connections being made only at factory provided connection points.
Edwards, Timothy
See attached errata
Mello, Charles F.
The ballot text has missing language as inserted by the panel action. The text as completed by the panel is as follows: (B) Aluminum and Copper-Clad
Aluminum Conductors. Equipment grounding conductors of bare or insulated aluminum or copperclad aluminum shall be permitted. Bare, covered or
insulated conductors shall not come in direct contact with masonry or the earth or where subject to corrosive conditions. Aluminum or copper-clad
aluminum conductors shall not be terminated within 450 mm (18 in.) of the earth, unless the termination method is listed as a sealed wire-connector
system. Terminations made within listed enclosures suitable for outdoor use shall be permitted within 18 inches of the earth.
Negative with Comment
Simmons, Phil
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CDA votes negative on the Panel action on this Public Input. Reasons for this negative vote include: 1. No documentation was provided to the Panel that
aluminum conductors have been evaluated for these locations and have been found acceptable. 2. The Panel was not provided with documentation that
“sealed wire connector systems” have been evaluated for the purpose of terminating aluminum equipment grounding conductors at the locations where
they would typically be installed. 3. The new last sentence “Terminations in a listed sealed wire-connector system are also acceptable within 18 in. of the
earth.” is much too broad. This will allow connection of aluminum equipment grounding conductors at locations where corrosive conditions may be present.
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First Revision No. 1236-NFPA 70-2015 [ Section No. 250.122(B) ]
(B) Increased in Size.
Where If ungrounded conductors are increased in size for any reason from the minimum size that has sufficient ampacity for the intended
installation, before the application of any adjustment or correction factor(s), wire-type equipment grounding conductors, where installed, shall be
increased in size proportionately according to the circular mil area . The increase in size shall be in the same proportion as the increase in the
size of the ungrounded conductors using their circular mil area .
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:42:50 EST 2015
Committee Statement
Committee Statement: The revised text provides additional clarity.
Response Message:
Public Input No. 3323-NFPA 70-2014 [Section No. 250.122(B)]
Public Input No. 1132-NFPA 70-2014 [Section No. 250.122(B)]
Ballot Results
302 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
8 Affirmative All
9 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Dobrowsky, Paul
Helfrich, William J.
Mello, Charles F.
O'Meara, Mike
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Beckstrand, Gary A.
The NEC text was revised by the committee to read as follows: “(B) Increased in Size. If ungrounded conductors are increased in size for any reason, from
the minimum size that has sufficient ampacity for the intended installation wire-type equipment grounding conductors shall be increased in size. The
increase in size shall be at least in the same proportion as the increase in the size of the ungrounded conductors using their circular mil area.” and not as
currently shown in Terra. the phase "from the minimum size that has sufficient ampacity for the intended installation," should be crossed out and removed
from the text.
Bowmer, Trevor N.
In 250.122(B), the text should revised further to read “shall be at least in the same proportion” and not as currently stated "...shall be in the same
proportion".
Brett, Jr., Martin J.
250.122(B) There seems to be a sense that the words should be “shall be at least in the same proportion” and not "shall be in the same proportion".
Edwards, Timothy
See attached errata
Harding, G. Scott
250.122 (B). The revised text could be improved if stated as follows: If ungrounded conductors are increased in size for any reason from the minimum size
that has sufficient ampacity for the intended installation other than an increase due to the application of any adjustment or correction factor(s), wire-type
equipment grounding conductors, where installed, shall be increased in size proportionately according to the circular mil area. The increase in size shall be
at least in the same proportion as the increase in the size of the ungrounded conductors using their circular mil area.
Harding, Joseph
FR 1236 – 250.122(B) There seems to be a sense that the words should be “shall be at least in the same proportion” and not shall be in the same
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proportion.
Mohla, Daleep C.
There seems to be a sense that the words should be “shall be at least in the same proportion” and not shall be in the same proportion
Palmieri, Charles J.
FR 1236 – 250.122(B) There seems to be a sense that the words should be “shall be at least in the same proportion” and not shall be in the same
proportion.
Philips, Nathan
Based on the panel discussion, my view is that the requirement for increasing conductor size should be limited to cases where the increase is due to
voltage drop. There was no technical basis presented for increasing the EGC when the other conductors are increased for reasons related to increased
heat because the conductor should not need to carry current for more than a few seconds, at worst, in a fault condition.
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First Revision No. 1246-NFPA 70-2015 [ Section No. 250.122(F) ]
(F) Conductors in Parallel.
Where conductors are installed in parallel in multiple raceways or cables as permitted in 310.10(H) , the equipment grounding conductors,
where used, shall be installed in parallel in each raceway or cable. Where conductors are installed in parallel in the same raceway, cable, or
cable tray as permitted in 310.10(H) , a single equipment grounding conductor shall be permitted. Equipment grounding conductors installed in
cable tray shall meet the minimum requirements of 392.10(B)(1)(c) .
Each equipment grounding conductor shall be sized in compliance with 250.122 .
For circuits of parallel conductors as permitted in 310.10(H) , the equipment grounding conductor shall be installed in accordance with (1) or
(2). The equipment grounding conductor shall not be required to be larger than the largest ungrounded conductor within the raceway or cable.
(1) Conductor Installations in Raceways, Auxiliary Gutters, or Cable Trays
(a) Single Raceway or Cable Tray . If conductors are installed in parallel in the same raceway, or cable trays a single wire type conductor
shall be permitted as the equipment grounding conductor. The wire type equipment grounding conductor shall be sized in accordance
with 250.122 Wire type equipment grounding conductors installed in cable trays shall meet the minimum requirements of 392.10(B)
(1) (c). Cable trays complying with 392.60(B) , metal raceways in accordance with 250.118 , or auxiliary gutters, shall be permitted as
the equipment grounding conductor.
(b) Multiple Raceways . If conductors are installed in parallel in multiple raceways, wire type equipment grounding conductors, where used,
shall be installed in parallel in each raceway. The equipment grounding conductor installed in each raceway shall be sized in compliance
with 250.122 . Cable trays complying with 392.60(B) , metal raceways in accordance with 250.118 , or auxiliary gutters, shall be
permitted as the equipment grounding conductor.
(2) Multiconductor Cables
(a) If multiconductor cables are installed in parallel, the equipment grounding conductor(s) in each cable shall be connected in parallel.
Except as provided in 250.122(F)(2)(b) for raceway or cable tray installations, the equipment grounding conductor in each
multiconductor cable shall be sized in accordance with 250.122 .
(b) If multiconductor cables are installed in parallel in the same raceway, auxiliary gutter, or cable tray, a single equipment grounding
conductor that is sized in accordance with 250.122 shall be permitted in combination with the equipment grounding conductors
provided within the multiconductor cables and shall all be connected together. Equipment grounding conductors installed in cable trays
shall meet the minimum requirements of 392.10(B)(1) (c). Cable trays complying with 392.60(B) , metal raceways in accordance with
250.118 , or auxiliary gutters, shall be permitted as the equipment grounding conductor.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 16:10:52 EST 2015
Committee Statement
Committee
Statement:
The revised text separates individual conductors installed in raceways or cable tray from multiconductor cables. The requirements are further
separated for single or multiple raceways. The revisions also recognize where standard multiconductor cables are installed in a raceway or
cable tray that is either suitable as the equipment grounding conductor or where a fully sized wire type equipment grounding conductor is
provided in the raceway or cable tray, the standard multiconductor cable is to be permitted even though the internal equipment grounding
conductors may be sized less than Table 250.122. Safety is maintained by the full sized equipment grounding conductor of the raceway or
cable tray being present.
For PI 330, the panel acknowledges the input from the Correlating Committee and has determined the action taken above resolves the PI
Response
Message:
Public Input No. 4103-NFPA 70-2014 [Section No. 250.122(F)]
Public Input No. 3521-NFPA 70-2014 [Section No. 250.122(F)]
Public Input No. 3329-NFPA 70-2014 [Section No. 250.122(F)]
Public Input No. 1315-NFPA 70-2014 [Section No. 250.122(F)]
Public Input No. 4652-NFPA 70-2014 [Section No. 250.122(F)]
Public Input No. 330-NFPA 70-2014 [Global Input]
Ballot Results
304 of 1802
This item has passed ballot
17 Eligible Voters
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0 Not Returned
15 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
Negative with Comment
Brett, Jr., Martin J.
Negative comment to FR 1246 The sentence “The equipment grounding conductor shall not be required to be larger than the largest ungrounded
conductor within the raceway or cable.” should be deleted. The implication is that this is a clarification of the requirement in 250.122(A) that states “. . . but
in no case shall they be required to be larger than the circuit conductors supplying the equipment.” The proposed new sentence in 250.122(F) conflicts with
250.122(A) and adds confusion in applying the provisions of this section; this was proposed for the 2014 Edition of the NEC and was held for the next
Edition. There were statements that no documentation or substantiation was submitted to justify this change, and none was offered for the 2017 Edition. In
some cases, compliance with the proposed new sentence could result in an electrically hazardous situation: Since 1/0 AL conductors are allowed to be
paralleled, several could be installed in parallel to get an ampacity of 960 amperes. Some overcurrent device equal to or less than 960 amperes could be
used to protect the conductors. According to several sources, and per calculations, 1/0 AL conductors are suitable for fault currents up to approximately
36kA for one cycle and approximately 57kA for a half cycle. Many electrical systems are capable of delivering fault currents in excess of these values, and
under some conditions, a portion of a single grounding conductor may be subjected to the entire fault energy, introducing the possibility of cable failure
before the overcurrent device operates, resulting in dangerous voltages being imposed on exposed metallic components of the electrical system.
Adherence to the basic rule of providing a full size EGC in each raceway or cable insures that the system will have the capacity to clear any ground fault
likely to be imposed on it.
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First Revision No. 1237-NFPA 70-2015 [ Section No. 250.148 [Excluding any Sub-Sections] ]
Where circuit conductors are spliced within a box, or terminated on equipment within or supported by a box, any all equipment grounding
conductor(s) associated with any of those circuit conductors shall be connected within the box or to the box with devices suitable for the use in
accordance with 250.148(A) through (E).
Exception: The equipment grounding conductor permitted in 250.146(D) shall not be required to be connected to the other equipment
grounding conductors or to the box.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 14:56:07 EST 2015
Committee Statement
Committee
Statement:
The revised text clarifies that all of the EGC's present in the box are required to be connected together regardless of the circuit they
are associated with.
Response Message:
Public Input No. 1331-NFPA 70-2014 [Section No. 250.148 [Excluding any Sub-Sections]]
Ballot Results
306 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
14 Affirmative All
2 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
Mello, Charles F.
The reference to 250.8 was omitted from the ballot text and was acted on by the panel. The text should read as: Where circuit conductors are spliced
within a box, or terminated on equipment within or supported by a box, all equipment grounding conductor(s) associated with any of those circuit
conductors shall be connected within the box or to the box with devices suitable for the use in accordance with 250.8 and 250.148(A) through (E).
Exception: The equipment grounding conductor permitted in 250.146(D) shall not be required to be connected to the other equipment grounding conductors
or to the box.
Negative with Comment
Dobrowsky, Paul
An effective ground fault path is necessary for each circuit. If multiple circuits are present in a nonmetallic enclosure, each having their own equipment
grounding conductor, there is no need to connect all the equipment grounding conductors together. Doing so can create problems with some susceptible
electronic equipment. Additionally this section is poorly worded and can be interpreted as not literally requiring a connection to a box or other conductors
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but "where" a connection is made the connections need to be suitable.
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First Revision No. 1239-NFPA 70-2015 [ Section No. 250.186 ]
250.186 Ground-Fault Circuit Conductor Brought to Service Equipment. Grounding Service-Supplied Alternating-Current Systems of over 1000
Volts
(A) Systems with a Grounded Conductor at the Service Point.
Where an ac system operating at over 1000 volts is grounded at any point and is provided with a grounded conductor at the service point, a
grounded conductor(s) shall be installed and routed with the ungrounded conductors to each service disconnecting means and shall be
connected to each disconnecting means grounded conductor(s) terminal or bus. A main bonding jumper shall connect the grounded conductor(s)
to each service disconnecting means’s enclosure. The grounded conductor(s) shall be installed in accordance with 250.186(A)(1) through
(A)(4). The size of the solidly grounded circuit conductor(s) shall be the larger of that determined by 250.184 or 250.186(A)(1) or (A)(2).
Exception: Where two or more service disconnecting means are located in a single assembly listed for use as service equipment, it shall be
permitted to connect the grounded conductor(s) to the assembly common grounded conductor(s) terminal or bus. The assembly shall include a
main bonding jumper for connecting the grounded conductor(s) to the assembly enclosure.
(1) Sizing for a Single Raceway or Overhead Conductor.
The grounded conductor shall not be smaller than the required grounding electrode conductor specified in Table 250.66 Table 250.102(C)(1)
but shall not be required to be larger than the largest ungrounded service-entrance conductor(s). In addition, for sets of ungrounded serviceentrance conductors larger than 1100 kcmil copper or 1750 kcmil aluminum, the grounded conductor shall not be smaller than 12 1⁄2 percent of
the circular mil area of the largest set of service-entrance ungrounded conductor(s).
(2) Parallel Conductors in Two or More Raceways or Overhead Conductors.
If the ungrounded service-entrance conductors are installed in parallel in two or more raceways or as overhead parallel conductors, the
grounded conductors shall also be installed in parallel. The size of the grounded conductor in each raceway or overhead shall be based on the
total circular mil area of the parallel ungrounded conductors in the raceway or overhead, as indicated in 250.186(A)(1), but not smaller than 1/0
AWG.
Informational Note: See 310.10(H) for grounded conductors connected in parallel.
(3) Delta-Connected Service.
The grounded conductor of a 3-phase, 3-wire delta service shall have an ampacity not less than that of the ungrounded conductors.
(4) Impedance Grounded Neutral Systems.
Impedance grounded neutral systems shall be installed in accordance with 250.187 .
(B) Systems Without a Grounded Conductor at the Service Point.
Where an ac system operating at greater than 1000 volts is grounded at any point and is not provided with a grounded conductor at the service
point, a supply-side bonding jumper shall be installed and routed with the ungrounded conductors to each service disconnecting means and shall
be connected to each disconnecting means equipment grounding conductor terminal or bus. The supply-side bonding jumper shall be installed in
accordance with 250.186(B)(1) through (B)(3).
Exception: Where two or more service disconnecting means are located in a single assembly listed for use as service equipment, it shall be
permitted to connect the supply-side bonding jumper to the assembly common equipment grounding terminal or bus.
(1) Sizing for a Single Raceway or Overhead Conductor.
The supply-side bonding jumper shall not be smaller than the required grounding electrode conductor specified in Table 250.66 Table
250.102(C)(1) but shall not be required to be larger than the largest ungrounded service-entrance conductor(s). In addition, for sets of
ungrounded service-entrance conductors larger than 1100 kcmil copper or 1750 kcmil aluminum, the supply-side bonding jumper shall not be
smaller than 12 1⁄2 percent of the circular mil area of the largest set of service-entrance ungrounded conductor(s).
(2) Parallel Conductors in Two or More Raceways or Overhead Conductors.
If the ungrounded service-entrance conductors are installed in parallel in two or more raceways or overhead conductors, the supply-side bonding
jumper shall also be installed in parallel. The size of the supply-side bonding jumper in each raceway or overhead shall be based on the total
circular mil area of the parallel ungrounded conductors in the raceway or overhead, as indicated in 250.186(A)(1), but not smaller than 1/0 AWG.
(3) Impedance Grounded Neutral Systems.
Impedance grounded neutral systems shall be installed in accordance with 250.187 .
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 15:00:03 EST 2015
Committee Statement
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Committee
Statement:
Title was revised for clarity and consistency with 250.24(C). The table reference to Table 250.66 was corrected to the new Table
250.102(C)(1) because of an inadvertent oversight in the 2014 cycle. The text for the 121/2 percent requirements was removed by the panel
since Table 250.102(C)(1) Notes already provide these requirements. The panel removed references to voltage covered in Part X.
Response
Message:
Public Input No. 4802-NFPA 70-2014 [Section No. 250.186]
Public Input No. 3095-NFPA 70-2014 [Section No. 250.186(A) [Excluding any Sub-Sections]]
Public Input No. 3096-NFPA 70-2014 [Section No. 250.186(B) [Excluding any Sub-Sections]]
Public Input No. 1322-NFPA 70-2014 [Section No. 250.186(B)(1)]
Public Input No. 1321-NFPA 70-2014 [Section No. 250.186(A)(1)]
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Ballot Results
309 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
10 Affirmative All
6 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mohla, Daleep C.
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Steinman, Gregory J.
Affirmative with Comment
Beckstrand, Gary A.
In the Title of 250.186 the text “of over 1000 Volts” needs to be struck out as per committee action.
Bowmer, Trevor N.
Increasing these voltage levels does not change the grounding requirements of Article 250. However, making these changes in Article 250 without
concomitant and correlating changes in other parts of the code will lead to confusion and inconsistency.
Edwards, Timothy
See attached errata
Mello, Charles F.
The title to Part X was not correct and the reference to 1000 Volts was deleted since all of Part X now is for systems over 2000 Volts. The title should read
as follows: 250.186 Grounding Service-Supplied Alternating-Current Systems
O'Meara, Mike
1000 volts is the correct term and should remain. The voltage level should remain at 1000 volts. Changing the title to 2000 volts in Part X may allow
additional items to comply with low voltage requirements without substantiation and may create safety issues. Although the change in voltage does not
directly impact the grounding requirements in Article 250, it creates inconsistency with other Articles throughout the code, as other CMP’s did not accept
these Public Inputs
Simmons, Phil
CDA votes affirmative on the Panel action on this Public Input but notes that the phrase “grounding electrode conductor” should be deleted from
250.186(A)(1) and (B)(1) as the subject is the sizing of the grounded conductor or the supply-side bonding jumper rather than a grounding electrode
conductor.
Negative with Comment
Brett, Jr., Martin J.
I do not see the need or benefit of making the increasing the voltage level from 1000 volts to 2000 volts.
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First Revision No. 7525-NFPA 70-2015 [ Section No. 250.187(B) ]
(B) Identified and Insulated.
The neutral conductor of an impedance grounded neutral system shall be identified, as well as fully insulated with the same insulation as the
phase conductors for the maximum neutral voltage .
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Mar 03 09:54:45 EST 2015
Committee Statement
Committee
Statement:
For this application it is not necessary to provide the same insulation for the neutral conductor as for the phase conductors. The
maximum voltage on the neutral conductor in a three-phase impedance grounded system is 57.7% of the phase-to-phase voltage.
Response
Message:
Public Input No. 1798-NFPA 70-2014 [Section No. 250.187(B)]
Ballot Results
310 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
15 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Beckstrand, Gary A.
The revision is appropriate for the application. The revised text should have further clarified the insulation rating for the neutral cable should be adequate
for the maximum line-to-neutral voltage rather than just the neutral voltage.
Edwards, Timothy
See attached errata
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First Revision No. 1244-NFPA 70-2015 [ Section No. 280.1 ]
280.1 Scope.
This article covers general requirements, installation requirements, and connection requirements for surge arresters installed on premises wiring
systems over 1000 2000 volts.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 15:17:18 EST 2015
Committee Statement
Committee Statement: This change is for consistency with other sections of the code.
Response Message:
Ballot Results
311 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
11 Affirmative All
2 Affirmative with Comments
4 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mohla, Daleep C.
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
Mello, Charles F.
The change to 280.1 is correct but the title to the Article also needs to be changed to: Surge Arresters, Over 2000 Volts
Negative with Comment
Brett, Jr., Martin J.
I do not see the need or benefit of making the increasing the voltage level from 1000 volts to 2000 volts. I do not see a gap in coverage.
Dobrowsky, Paul
The voltage level should not be increased to 2000 to be consistent with other code making panels actions to have the threshold be 1000. There is no gap
in voltage levels in Article 250, it is up to 1000 volts and over 1000 volts.
O'Meara, Mike
The voltage level should remain at 1000 volts. Making this change to Part X may allow additional items to comply with low voltage requirements without
substantiation and may create safety issues. Although the change in voltage does not directly impact the grounding requirements in Article 250, it creates
inconsistency with other Articles throughout the code, as other CMP’s did not accept these Public Inputs
Sasso, Nick
This change is not necessary for consistency with other sections of the code. There is an undercurrent on this panel to replace 1000 volts with "2000
volts." In my opinion, this is arbitrary and being attempted to serve some other purpose. Article 490 has a definition of high voltage (more than 1000 volts)
therefore it is sensible and practical for Article 250 to remain consistent with the NEC definition in Article 490. The NEC document needs to be consistent
throughout. It is also important to remember that other regulations, such as OSHA, use 1000 volts when the term "high voltage" is referenced. Furthermore,
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OSHA cooperative programs state that for "OVER 1000 VOLTS" electrical burn wounds possess special clinical characteristics. In addition, for "OVER
1000 VOLTS" there is a risk of wounds which can lead to amputation. The distinction is "over 1000" not "2000 volts."
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First Revision No. 1247-NFPA 70-2015 [ Section No. 280.2 ]
280.12 Uses Not Permitted.
A surge arrester shall not be installed where the rating of the surge arrester is less than the maximum continuous phase-to-ground power
frequency voltage available at the point of application.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 16:32:07 EST 2015
Committee Statement
Committee
Statement:
The revised text separates individual conductors installed in raceways or cable tray from multiconductor cables. The requirements are further
separated for single or multiple raceways. The revisions also recognize where standard multiconductor cables are installed in a raceway or
cable tray that is either suitable as the equipment grounding conductor or where a fully sized wire type equipment grounding conductor is
provided in the raceway or cable tray, the standard multiconductor cable is to be permitted even though the internal equipment grounding
conductors may be sized less than Table 250.122. Safety is maintained by the full sized equipment grounding conductor of the raceway or
cable tray being present.
For PI 330, the panel acknowledges the input from the Correlating Committee and has determined the action taken above resolves the PI
Response
Message:
Public Input No. 372-NFPA 70-2014 [Section No. 280.2]
Public Input No. 805-NFPA 70-2014 [Section No. 280.2]
Ballot Results
313 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 1242-NFPA 70-2015 [ Section No. 280.3 ]
280.3 Number Required.
Where used at a point on a circuit, a surge arrester shall be connected to each ungrounded conductor. A single installation of such surge
arresters shall be permitted to protect a number of interconnected circuits, provided that if no circuit is exposed to surges while disconnected
from the surge arresters.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 15:12:14 EST 2015
Committee Statement
Committee Statement: Revision is made to comply with NEC Style Manual, 3.3.4.
Response Message:
Public Input No. 3474-NFPA 70-2014 [Section No. 280.3]
Ballot Results
314 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 1248-NFPA 70-2015 [ Section No. 280.12 ]
280.14 Routing of Surge Arrester Grounding Conductors.
The conductor used to connect the surge arrester to line, bus, or equipment and to a grounding conductor connection point as provided in
280.21 shall not be any longer than necessary and shall avoid unnecessary bends.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 16:34:26 EST 2015
Committee Statement
Committee Statement: The existing section 280.12 was renumbered to 280.14 to provide space for any future revisions in this part.
Response Message:
Ballot Results
315 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 1241-NFPA 70-2015 [ Section No. 280.24(A) ]
(A) Metallic Metal Interconnections.
A metallic metal interconnection shall be made to the secondary grounded circuit conductor or the secondary circuit grounding electrode
conductor provided that ,if, in addition to the direct grounding connection at the surge arrester, the following occurs:
(1) Additional Grounding Connection.
The grounded conductor of the secondary has elsewhere a grounding connection to a continuous metal underground water piping system. In
urban water-pipe areas where there are at least four water-pipe connections on the neutral conductor and not fewer than four such connections
in each mile of neutral conductor, the metallic interconnection shall be permitted to be made to the secondary neutral conductor with omission
of the direct grounding connection at the surge arrester.
(1) Multigrounded Neutral System Connection.
The grounded conductor of the secondary system is a part of a multigrounded neutral system or static wire of which the primary neutral
conductor or static wire has at least four grounding connections in each mile of line in addition to a grounding connection at each service.
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 15:09:46 EST 2015
Committee Statement
Committee Statement: Revision made to comply with NEC Style Manual, 3.3.4.
Response Message:
Public Input No. 3475-NFPA 70-2014 [Section No. 280.24(A)]
Ballot Results
316 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
15 Affirmative All
2 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
Mello, Charles F.
The only change was to the main text. The strike out of the exisitng text for 280.24(A)(1) and 280.24(A)(2) is incorrect. Note in the ballot documetn both
section struck out are identified at "(1)".
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First Revision No. 1245-NFPA 70-2015 [ Sections 285.1, 285.3 ]
285.1 Scope.
This article covers general requirements, installation requirements, and connection requirements for surge-protective devices (SPDs)
permanently installed on premises wiring systems of 1000 2000 volts or less.
Informational Note: Surge arresters 1000 2000 volts or less are also known as Type 1 SPDs.
285.3 Uses Not Permitted.
An SPD device shall not be installed in the following:
(1) Circuits over 1000 2000 volts
(2) On ungrounded systems, impedance grounded systems, or corner grounded delta systems unless listed specifically for use on these
systems
(3) Where the rating of the SPD is less than the maximum continuous phase-to-ground power frequency voltage available at the point of
application
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 15:19:56 EST 2015
Committee Statement
Committee Statement: The changes are for consistency with this change in other sections of the code.
Response Message:
Ballot Results
317 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
12 Affirmative All
3 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Brett, Jr., Martin J.
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Bowmer, Trevor N.
Increasing these voltage levels does not change the grounding requirements of Article 250. However, making these changes in Article 250 without
concomitant and correlating changes in other parts of the code will lead to confusion and inconsistency.
Edwards, Timothy
See attached errata
Mello, Charles F.
The changes from 1000 Volts to 2000 Volts in 285.1 and 285.3 are correct. The title to the Article was not changed as it should be to: Surge-Protective
Devices (SPDs), 2000 Volts or Less
Negative with Comment
4/22/2015 10:39 AM
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318 of 1802
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Dobrowsky, Paul
The voltage level should not be increased to 2000 to be consistent with other code making panels actions to have the threshold be 1000. There is no gap
in voltage levels in Article 250, it is up to 1000 volts and over 1000 volts.
Sasso, Nick
This change is not necessary for consistency with other sections of the code. There is an undercurrent on this panel to replace 1000 volts with "2000
volts." In my opinion, this is arbitrary and being attempted to serve some other purpose. Article 490 has a definition of high voltage (more than 1000 volts)
therefore it is sensible and practical for Article 250 to remain consistent with the NEC definition in Article 490. The NEC document needs to be consistent
throughout. It is also important to remember that other regulations, such as OSHA, use 1000 volts when the term "high voltage" is referenced. Furthermore,
OSHA cooperative programs state that for "OVER 1000 VOLTS" electrical burn wounds possess special clinical characteristics. In addition, for "OVER
1000 VOLTS" there is a risk of wounds which can lead to amputation. The distinction is "over 1000" not "2000 volts."
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First Revision No. 1243-NFPA 70-2015 [ Section No. 285.5 ]
285.5 Listing.
An SPD shall be a listed device and labeled device .
Submitter Information Verification
Submitter Full Name: CMP 5
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 15:13:10 EST 2015
Committee Statement
Committee
Statement:
The revised text clarifies that listing is not sufficient alone, but that a label authorized by the listing laboratory must appear on the product
to identify it as being The revised text clarifies that listing is not sufficient alone, but that a label authorized by the listing laboratory must
appear on the product to identify it as being listed.
Present 285.6, Short –Circuit Current Rating, needs to be renumbered to 285.7.
Response
Message:
Public Input No. 863-NFPA 70-2014 [Section No. 285.5]
Ballot Results
319 of 1802
This item has passed ballot
17 Eligible Voters
0 Not Returned
16 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Beckstrand, Gary A.
Bowmer, Trevor N.
Brett, Jr., Martin J.
Dobrowsky, Paul
Harding, Joseph
Harding, G. Scott
Helfrich, William J.
Mello, Charles F.
Mohla, Daleep C.
O'Meara, Mike
Palmieri, Charles J.
Philips, Nathan
Porter, Christine T.
Sasso, Nick
Simmons, Phil
Steinman, Gregory J.
Affirmative with Comment
Edwards, Timothy
See attached errata
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First Revision No. 601-NFPA 70-2015 [ Section No. 300.3(B)(1) ]
(1) Paralleled Installations.
Conductors shall be permitted to be run in parallel in accordance with the provisions of 310.10(H) . The requirement to run all circuit conductors
within the same raceway, auxiliary gutter, cable tray, trench, cable, or cord shall apply separately to each portion of the paralleled installation, and
the equipment grounding conductors shall comply with the provisions of 250.122 . Parallel runs in cable tray shall comply with the provisions of
392.20(C) .
Exception: Conductors installed in nonmetallic raceways run underground shall be permitted to be arranged as isolated phase, neutral, and
grounded conductor installations. The raceways shall be installed in close proximity, and the isolated phase, neutral, and grounded conductors
shall comply with the provisions of 300.20(B) .
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 09:09:29 EST 2015
Committee Statement
Committee
Statement:
The addition of “neutral and grounded” conductors in two places within the exception does provide clarity that ungrounded, grounded, and
neutral conductors are included in the isolation permitted within the exception. Based on PI 3271, the addition of “polarity” conductors, as
submitted in the PI is unnecessary since induction is not an issue with dc conductors installed in separate raceways. The reference to
250.24(C)(2) is unnecessary since the sizing requirement is already covered by Article 250 where individual raceways are installed.
Response
Message:
Public Input No. 3271-NFPA 70-2014 [Section No. 300.3(B)(1)]
Ballot Results
320 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 602-NFPA 70-2015 [ Section No. 300.3(B)(4) ]
(4) Column-Width Panelboard Enclosures.
Where an auxiliary gutter runs between a column-width panelboard and a pull box, and the pull box includes neutral terminations, the neutral
conductors of circuits supplied from the panelboard shall be permitted to originate in the pull box.
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 09:13:52 EST 2015
Committee Statement
Committee
Statement:
The addition of Panelboard to the title of this subsection, based on PI 1237 and 4542, provides further clarification by adding “Columnwidth” located in the title before Panelboard indicating this requirement only applies to a column-width panelboard. This clarification will
make it easier to address Column-width Panelboards in the index since this is the only location in the NEC where the issue of a
column-width panelboard is addressed.
Response
Message:
Public Input No. 1237-NFPA 70-2014 [Section No. 300.3(B)(4)]
Public Input No. 4542-NFPA 70-2014 [Section No. 300.3(B)(4)]
Ballot Results
321 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 603-NFPA 70-2015 [ Section No. 300.5(A) ]
Global FR-604
(A) Minimum Cover Requirements.
Direct-buried cable or conduit or other raceways shall be installed to meet the minimum cover requirements of Table 300.5 .
Table 300.5 Minimum Cover Requirements, 0 to 1000 Volts, Nominal, Burial in Millimeters (Inches)
Type of Wiring Method or Circuit
Column 4
Column 3
Nonmetallic
Raceways Listed for
Rigid Metal
Direct Burial Without
Conduit or
Concrete
Intermediate Encasement or Other
Metal Conduit Approved Raceways
Column 2
Column 1
Direct Burial
Cables or
Conductors
Location of Wiring Method
or Circuit
mm
in.
mm
in.
mm
Column 5
Residential Branch
Circuits for Control of
Circuits Rated 120
Irrigation and Landscape
Volts or Less with
Lighting Limited to Not
GFCI Protection and
More Than 30 Volts and
Maximum Overcurrent Installed with Type UF or
Protection of 20
in Other Identified Cable
Amperes
or Raceway
in.
mm
in.
mm
in.
All locations not specified
below
600
24
150
6
450
18
300
12
150
In trench below 50 mm (2
in.) thick concrete or
equivalent
450
18
150
6
300
12
150
6
150
6
Under a building
0
0
0
0
0
0
0
0
0
0
(in raceway or
Type MC or Type
MI cable
identified for
direct burial)
a
6
a
(in raceway or Type MC
(in raceway or Type MC or
or Type MI cable
Type MI cable identified for
identified for direct
direct burial)
burial)
Under minimum of 102 mm
(4 in.) thick concrete exterior
slab with no vehicular traffic
and the slab extending not 450
less than 152 mm (6 in.)
beyond the underground
installation
18
Under streets, highways,
roads, alleys, driveways,
and parking lots
600
24
600
24
600
24
600
24
600
24
One- and two-family
dwelling driveways and
outdoor parking areas, and
used only for dwellingrelated purposes
450
18
450
18
450
18
300
12
450
18
In or under airport runways,
including adjacent areas
450
where trespassing
prohibited
18
450
18
450
18
450
18
450
18
a
150
6
(direct burial)
100
4
100
150
6
(direct burial)
4
100
4
(in raceway)
100
4
(in raceway)
A lesser depth shall be permitted where specified in the installation instructions of a listed low voltage lighting system.
Notes:
1. Cover is defined as the shortest distance in millimeters (inches) measured between a point on the top surface of any direct-buried conductor,
cable, conduit, or other raceway and the top surface of finished grade, concrete, or similar cover.
2. Raceways approved for burial only where concrete encased shall require concrete envelope not less than 50 mm (2 in.) thick.
3. Lesser depths shall be permitted where cables and conductors rise for terminations or splices or where access is otherwise required.
4. Where one of the wiring method types listed in Columns 1 through 3 is used for one of the circuit types in Columns 4 and 5, the shallowest
depth of burial shall be permitted.
5. Where solid rock prevents compliance with the cover depths specified in this table, the wiring shall be installed in a metal raceway, or a
nonmetallic raceway permitted for direct burial. The raceways shall be covered by a minimum of 50 mm (2 in.) of concrete extending down to
rock.
Submitter Information Verification
322 of 1802
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
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State:
Zip:
Submittal Date:
Mon Jan 19 09:59:33 EST 2015
Committee Statement
Committee
Statement:
The existing text in Note 5 actually should read as “installed in a metal raceway or installed in a nonmetallic raceway permitted for direct
burial.” The “permitted for direct burial” only applies to the nonmetallic raceway. This is a very specific type of nonmetallic raceway since not
all nonmetallic raceways are listed for direct burial without concrete encasement.
Response
Message:
Public Input No. 2133-NFPA 70-2014 [Section No. 300.5(A)]
Ballot Results
323 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 605-NFPA 70-2015 [ Section No. 300.5(B) ]
(B) Wet Locations.
The interior of enclosures or raceways installed underground shall be considered to be a wet location. Insulated conductors and cables installed
in these enclosures or raceways in underground installations shall comply with 310.10(C) . Any connections or splices in an underground
installation shall be approved for wet locations.
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 10:37:31 EST 2015
Committee Statement
Committee
Statement:
The last sentence in 300.5(B) has been deleted since this requirement is already covered in the last sentence of 110.14(B) in the following
text: “Wire connectors or splicing means installed on conductors for direct burial shall be listed for such use.” Repeating this information in
300.5(B) is unnecessary. Using the term “identified” is also unnecessary as was indicated in Public Input 4726 since labeling is part of the
listing process.
Response
Message:
Public Input No. 1057-NFPA 70-2014 [Section No. 300.5(B)]
Public Input No. 3830-NFPA 70-2014 [Section No. 300.5(B)]
Public Input No. 4726-NFPA 70-2014 [Section No. 300.5(B)]
Ballot Results
324 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 606-NFPA 70-2015 [ Section No. 300.5(D)(4) ]
(4) Enclosure or Raceway Damage.
Where the enclosure or raceway is subject to physical damage, the conductors shall be installed in electrical metallic tubing, rigid metal conduit,
intermediate metal conduit, RTRC-XW, Schedule 80 PVC conduit, or equivalent.
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 10:49:27 EST 2015
Committee Statement
Committee
Statement:
Section 300.5(D)(4) is being revised to add electrical metallic tubing (EMT) since EMT is not restricted from underground applications and is
commonly used under building slabs to connect electrical equipment. Corrosion protection is a requirement for listed EMT per UL 797 and in
accordance with 300.6. In addition, Article 358 requires the use of listed fittings and 314.15 requires wet location fittings in this application.
EMT is allowed to be used in locations where not subject to “severe” physical damage.
Panel 3 would like to bring to the attention of the CC the issue of severe physical vs. physical damage issue.
Response
Message:
Public Input No. 1328-NFPA 70-2014 [Section No. 300.5(D)(4)]
Ballot Results
325 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 607-NFPA 70-2015 [ Section No. 300.5(F) ]
(F) Backfill.
Backfill that contains large rocks, paving materials, cinders, large or sharply angular substances, or corrosive material shall not be placed in an
excavation where materials may damage raceways, cables, conductors, or other substructures or prevent adequate compaction of fill or
contribute to corrosion of raceways, cables, or other substructures.
Where necessary to prevent physical damage to the raceway or , cable, or conductor, protection shall be provided in the form of granular or
selected material, suitable running boards, suitable sleeves, or other approved means.
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 10:54:29 EST 2015
Committee Statement
Committee
Statement:
Conductors has been added to the requirement for protection of raceways and cables in 300.5(F) since Table 300.5 Column 1 recognizes
both directly buried cables and directly buried conductors. This change will provide protection for raceway, cable and conductor directly
buried installations.
Response
Message:
Public Input No. 1198-NFPA 70-2014 [Section No. 300.5(F)]
Ballot Results
326 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 608-NFPA 70-2015 [ Section No. 300.5(G) ]
(G) Raceway Seals.
Conduits or raceways through which moisture may contact live parts shall be sealed or plugged at either or both ends. Spare or unused
raceways shall also be sealed. Sealants shall be identified for use with the cable insulation, conductor insulation, bare conductor, shield, or other
components.
Informational Note: Presence of hazardous gases or vapors may also necessitate sealing of underground conduits or raceways entering
buildings.
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 10:57:04 EST 2015
Committee Statement
Committee
Statement:
This new text is the same as used in 225.27, covering raceway seals for outside feeder and branch circuits, and similar to that of 230.8,
covering raceway seals for service raceways. Any sealant used to seal a raceway containing conductors should not cause damage to
cable insulation, the conductor, or any component of the cable.
Response
Message:
Public Input No. 1571-NFPA 70-2014 [Section No. 300.5(G)]
Public Input No. 2134-NFPA 70-2014 [Section No. 300.5(G)]
Public Input No. 3327-NFPA 70-2014 [Section No. 300.5(G)]
Ballot Results
327 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
Negative with Comment
Mills, T. David
The word “identified” should be replaced with the word “approved”. Many sealants that are commonly used for this purpose are not identified as that term
is defined in Article 100. There does not appear to be a UL standard that these products can be evaluated to regarding possible effects on conductors and
their insulation. The AHJ should have the ability to approve sealants that have been used for many years without evidence of a problem. It is recommended
that this word change from “identified” to “approved” be considered by CMP-4 in sections 225.27 and 230.8.
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First Revision No. 609-NFPA 70-2015 [ Section No. 300.5(J) ]
(J) Earth Movement.
Where direct-buried conductors, raceways, or cables are subject to movement by settlement or frost, direct-buried conductors, raceways, or
cables shall be arranged so as to prevent damage to the enclosed conductors or to equipment connected to the raceways.
Informational Note: This section recognizes “S” loops in underground direct burial cables and conductors to raceway transitions,
expansion fittings in raceway risers to fixed equipment, and, generally, the provision of flexible connections to equipment subject to
settlement or frost heaves.
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 11:00:17 EST 2015
Committee Statement
Committee
Statement:
The text in this Informational Note was inserted in the 1996 NEC and has remained unchanged since it was submitted. Electricians
understand that an “S” loop is installed in directly buried cables or conductors to ensure that expansion and contraction can occur in these
directly buried conductors and cables. “Cables and conductors” were inserted to clarify that the directly buried cables and conductors may
be formed into “S” loops.
Response
Message:
Public Input No. 2882-NFPA 70-2014 [Section No. 300.5(J)]
Ballot Results
328 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 610-NFPA 70-2015 [ Section No. 300.11 ]
300.11 Securing and Supporting.
(A) Secured in Place.
Raceways, cable assemblies, boxes, cabinets, and fittings shall be securely fastened in place.
(B) Wiring Systems Installed Above Suspended Ceilings.
Support wires that do not provide secure support shall not be permitted as the sole support. Support wires and associated fittings that provide
secure support and that are installed in addition to the ceiling grid support wires shall be permitted as the sole support. Where independent
support wires are used, they shall be secured at both ends. Cables and raceways shall not be supported by ceiling grids.
(1) Fire-Rated Assemblies.
Wiring located within the cavity of a fire-rated floor–ceiling or roof–ceiling assembly shall not be secured to, or supported by, the ceiling assembly,
including the ceiling support wires. An independent means of secure support shall be provided and shall be permitted to be attached to the
assembly. Where independent support wires are used, they shall be distinguishable by color, tagging, or other effective means from those that
are part of the fire-rated design.
Exception: The ceiling support system shall be permitted to support wiring and equipment that have been tested as part of the fire-rated
assembly.
Informational Note: One method of determining fire rating is testing in accordance with ANSI/ASTM E119-2012a 2014 , Method for Fire
Tests of Building Construction and Materials.
(2) Non–Fire-Rated Assemblies.
Wiring located within the cavity of a non–fire-rated floor–ceiling or roof–ceiling assembly shall not be secured to, or supported by, the ceiling
assembly, including the ceiling support wires. An independent means of secure support shall be provided and shall be permitted to be attached to
the assembly. Where independent support wires are used, they shall be distinguishable by color, tagging, or other effective means.
Exception: The ceiling support system shall be permitted to support branch-circuit wiring and associated equipment where installed in
accordance with the ceiling system manufacturer’s instructions.
(C) Raceways Used as Means of Support.
Raceways shall be used only as a means of support for other raceways, cables, or nonelectrical equipment under any of the following conditions:
(1) Where the raceway or means of support is identified as a means of support
(2) Where the raceway contains power supply conductors for electrically controlled equipment and is used to support Class 2 circuit conductors
or cables that are solely for the purpose of connection to the equipment control circuits
(3) Where the raceway is used to support boxes or conduit bodies in accordance with 314.23 or to support luminaires in accordance with
410.36(E)
(D) Cables Not Used as Means of Support.
Cable wiring methods shall not be used as a means of support for other cables, raceways, or nonelectrical equipment.
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 11:12:48 EST 2015
Committee Statement
Committee
Statement:
The reformatting of 300.11 provides clear and concise rules for securing and supporting raceways, cable assemblies, boxes, cabinets,
and fittings while recognizing that all of new (B) applies only to wiring systems installed above suspended ceilings. These changes are
editorial in nature.
CMP-3 updates the issue date of ANSI/ASTM E119 to 2014.
Response
Message:
Public Input No. 4656-NFPA 70-2014 [Section No. 300.11]
Ballot Results
329 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
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Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 611-NFPA 70-2015 [ Section No. 300.12 ]
300.12 Mechanical Continuity — Raceways and Cables.
Metal or nonmetallic raceways Raceways , cable armors, and cable sheaths shall be continuous between cabinets, boxes, fittings, or other
enclosures or outlets.
Exception No. 1: Short sections of raceways used to provide support or protection of cable assemblies from physical damage shall not be
required to be mechanically continuous.
Exception No. 2: Raceways and cables installed into the bottom of open bottom equipment, such as switchboards, motor control centers, and
floor or pad-mounted transformers, shall not be required to be mechanically secured to the equipment.
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 11:29:55 EST 2015
Committee Statement
Committee
Statement:
The phrase “Metal or nonmetallic” has been removed since the use of the terms, “metal” and “nonmetallic” cover all raceways
anyway.
Response Message:
Public Input No. 2137-NFPA 70-2014 [Section No. 300.12]
Ballot Results
331 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 612-NFPA 70-2015 [ Section No. 300.19(A) ]
(A) Spacing Intervals — Maximum.
Conductors in vertical raceways shall be supported if the vertical rise exceeds the values in Table 300.19(A). One cable At least one support
method shall be provided for each conductor or cable assembly at the top of the vertical raceway or as close to the top as practical. Intermediate
supports shall be provided as necessary to limit supported conductor lengths to not greater than those values specified in Table 300.19(A) .
Exception: Steel wire armor cable shall be supported at the top of the riser with a cable support that clamps the steel wire armor. A safety
device shall be permitted at the lower end of the riser to hold the cable in the event there is slippage of the cable in the wire-armored cable
support. Additional wedge-type supports shall be permitted to relieve the strain on the equipment terminals caused by expansion of the cable
under load.
Table 300.19(A) Spacings for Conductor Supports
Conductors
Aluminum or
Copper-Clad
Conductor Size
Support of Conductors in Vertical Raceways
Copper
Aluminum
m
ft
m
ft
18 AWG through 8 AWG
Not greater than
30
100
30
100
6 AWG through 1/0 AWG
Not greater than
60
200
30
100
2/0 AWG through 4/0 AWG
Not greater than
55
180
25
80
Over 4/0 AWG through 350 kcmil
Not greater than
41
135
18
60
Over 350 kcmil through 500 kcmil
Not greater than
36
120
15
50
Over 500 kcmil through 750 kcmil
Not greater than
28
95
12
40
Over 750 kcmil
Not greater than
26
85
11
35
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 13:17:50 EST 2015
Committee Statement
Committee
Statement:
Changing “One cable support” to “At least one support method” is more descriptive of the installation since the introductory sentence to
this Section addresses conductors, not cables so the change more appropriately addresses conductors.
Response
Message:
Public Input No. 1499-NFPA 70-2014 [Section No. 300.19(A)]
Ballot Results
332 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
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Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 613-NFPA 70-2015 [ Section No. 300.19(C) ]
(C) Support Methods.
One of the following methods of support shall be used:
(1) By clamping devices constructed of or employing insulating wedges inserted in the ends of the raceways. Where clamping of insulation
does not adequately support the cable, the conductor also shall be clamped.
(2) By inserting boxes at the required intervals in which insulating supports are installed and secured in a satisfactory an approved manner to
withstand the weight of the conductors attached thereto, the boxes being provided with covers.
(3) In junction boxes, by deflecting the cables not less than 90 degrees and carrying them horizontally to a distance not less than twice the
diameter of the cable, the cables being carried on two or more insulating supports and additionally secured thereto by tie wires if desired.
Where this method is used, cables shall be supported at intervals not greater than 20 percent of those mentioned in the preceding
tabulation.
(4) By a method of equal effectiveness other approved means .
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 13:22:26 EST 2015
Committee Statement
Committee
Statement:
The term “satisfactory” is one of several subjective terms found in the NEC where decisions of suitability fall under the purview of the AHJ.
Changing the term “satisfactory” to “approved” will help align Code language for judgment-based sections such as this.
The phrase “method of equal effectiveness” is one of several subjective terms found in the NEC where decisions of suitability fall under the
purview of the AHJ. Changing the phrase “method of equal effectiveness” to approved will help align Code language for judgment-based
sections such as this.
Response
Message:
Public Input No. 1058-NFPA 70-2014 [Section No. 300.19(C)]
Public Input No. 1059-NFPA 70-2014 [Section No. 300.19(C)]
Public Input No. 1446-NFPA 70-2014 [Section No. 300.19(C)]
Public Input No. 1447-NFPA 70-2014 [Section No. 300.19(C)]
Ballot Results
334 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
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Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 614-NFPA 70-2015 [ Section No. 300.22(B) ]
(B) Ducts Specifically Fabricated for Environmental Air.
Equipment, devices, and the wiring methods specified in this section shall be permitted within such ducts only if necessary for the direct action
upon, or sensing of, the contained air. Where equipment or devices are installed and illumination is necessary to facilitate maintenance and
repair, enclosed gasketed-type luminaires shall be permitted.
Only wiring methods consisting of Type MI cable without an overall nonmetallic covering, Type MC cable employing a smooth or corrugated
impervious metal sheath without an overall nonmetallic covering, electrical metallic tubing, flexible metallic tubing, intermediate metal conduit, or
rigid metal conduit without an overall nonmetallic covering shall be installed in ducts specifically fabricated to transport environmental air. Flexible
metal conduit shall be permitted, in lengths not to exceed 1.2 m (4 ft), to connect physically adjustable equipment and devices permitted to be in
these fabricated ducts. The connectors used with flexible metal conduit shall effectively close any openings in the connection.
Exception: Wiring methods and cabling systems, listed for use in other spaces used for environmental air (plenums), shall be permitted to be
installed in ducts specifically fabricated for environmental air-handling purposes under the following conditions:
(1) The wiring methods or cabling systems shall be permitted only if necessary to connect to equipment or devices associated with the direct
action upon or sensing of the contained air, and
(2) The total length of such wiring methods or cabling systems shall not exceed 1.2 m (4 ft).
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 13:27:52 EST 2015
Committee Statement
Committee
Statement:
This new Exception provides the capability of wiring systems or cabling systems that are specifically listed as low smoke and flame spread,
based on NFPA 262, to be installed in very limited lengths of a maximum of 4 feet to connect to electrical equipment or devices but only to
equipment or devices that are associated with the direct action or sensing of the air contained within the fabricated duct. Similar text can be
found in the NFPA 90A-2015 document in Section 4.3.4.2.
Response
Message:
Public Input No. 1319-NFPA 70-2014 [Section No. 300.22(B)]
Ballot Results
336 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
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Affirmative with Comment
Brewer, Larry G.
I agree with the statments of the committee
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First Revision No. 645-NFPA 70-2015 [ Section No. 300.22(C)(3) ]
(3) Equipment.
Electrical equipment with a metal enclosure, or electrical equipment with a nonmetallic enclosure listed for use within an air-handling space and
having adequate fire-resistant and low-smoke-producing characteristics low smoke and heat release properties , and associated wiring material
suitable for the ambient temperature shall be permitted to be installed in such other space unless prohibited elsewhere in this Code.
Informational Note: One method of defining adequate fire-resistant and low-smoke-producing characteristics for electrical equipment with
a nonmetallic enclosure is in to determine low smoke and heat release properties is that the equipment exhibits a maximum peak optical
density of 0.50 or less, an average optical density of 0.15 or less, and a peak heat release rate of 100kW or less when tested in
accordance with ANSI/UL 2043-2008, Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed
in Air-Handling Spaces.
Exception: Integral fan systems shall be permitted where specifically identified for use within an air-handling space.
Submitter Information Verification
Submitter Full Name: CMP 3
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 16:25:15 EST 2015
Committee Statement
Committee
Statement:
CMP-3 edits the text. UL 2043 only measures heat release and smoke optical density. The text establishes consistency with
300.22(C)(1).
Response Message:
Public Input No. 309-NFPA 70-2014 [Global Input]
Ballot Results
338 of 1802
This item has passed ballot
14 Eligible Voters
1 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Not Returned
Pace, David A.
Affirmative All
Brunner, William A.
Burlison, Steven D.
Casparro, Paul J.
Clary, Shane M.
Corbin, Adam D.
Easter, Les
Keden, Ray R.
Mills, T. David
Owen, Steven J.
Scearce, Susan Newman
Sleights, John E.
Stene, Susan L.
Affirmative with Comment
Brewer, Larry G.
I agree with the statements of the committee
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First Revision No. 1501-NFPA 70-2015 [ Section No. 310.10(H)(5) ]
(5) Equipment Bonding Grounding Conductors.
Where parallel equipment bonding grounding conductors are used, they shall be sized in accordance with 250.122 . Sectioned equipment
bonding grounding conductors smaller than 1/0 AWG shall be permitted in multiconductor cables, provided that if the combined circular mil area
of the sectioned equipment bonding grounding conductors in each cable complies with 250.122 .
Submitter Information Verification
Submitter Full Name: CMP 6
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 09:20:22 EST 2015
Committee Statement
Committee
Statement:
PI 3476 adds clarity and complies with the Style Manual.
PI 1376 - The change from "grounding" to "bonding" in the 2014 NEC was inadvertent. CMP-6 accepted the change only if CMP-5 accepted
changing from "equipment grounding conductor" to "equipment bonding conductor". Since CMP-5 did not accept that change, the TCC
directed that ROP 6-13 be recorded as a "reject". Therefore, the change from "grounding" to "bonding" was in error and needs to be
changed back.
Response
Message:
Public Input No. 1376-NFPA 70-2014 [Section No. 310.10(H)(5)]
Public Input No. 3476-NFPA 70-2014 [Section No. 310.10(H)(5)]
Ballot Results
339 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Brush, Edwin F.
Friedman, Samuel B.
Huddleston, Jr., Robert L.
Kent, Gerald W.
Laidler, William F.
Picard, Paul R.
Riedl, Kenneth
Smith, Michael W.
Stacey, John
Wall, Carl Timothy
Xerri, Mario
Zimnoch, Joseph S.
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First Revision No. 1502-NFPA 70-2015 [ Section No. 310.15(A)(2) ]
(2) Selection of Ampacity.
Where more than one ampacity applies for a given circuit length, the lowest value shall be used.
Exception: Where two different ampacities apply to adjacent portions of a circuit, the higher ampacity shall be permitted to be used beyond
the point of transition, a distance equal to if the total portion(s) of the circuit with lower ampacity does not exceed the lesser of 3.0 m (10 ft) or
10 percent of the circuit length figured at the higher ampacity, whichever is less total circuit .
Informational Note: See 110.14(C) for conductor temperature limitations due to termination provisions.
Submitter Information Verification
Submitter Full Name: CMP 6
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 12:58:15 EST 2015
Committee Statement
Committee
Statement:
The present text of 310.15(A)(2) is correct, and the ampacity of that portion of the circuit with higher ampacity may be used for the circuit
ampacity, even if one or more parts of the circuit have lower ampacity, as long as the total of the parts with lower ampacity do not exceed the
lesser of 10 ft. or 10% of the total circuit length. The parts of the circuit with lower ampacity do not have to be adjacent. This exception
should not be used in conjunction with 310.15(B)(3)(a).
Response
Message:
Public Input No. 2773-NFPA 70-2014 [Section No. 310.15(A)(2)]
Ballot Results
340 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Brush, Edwin F.
Friedman, Samuel B.
Huddleston, Jr., Robert L.
Kent, Gerald W.
Laidler, William F.
Picard, Paul R.
Riedl, Kenneth
Smith, Michael W.
Stacey, John
Wall, Carl Timothy
Xerri, Mario
Zimnoch, Joseph S.
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First Revision No. 1503-NFPA 70-2015 [ Section No. 310.15(B)(3) ]
(3) Adjustment Factors.
(a) More Than than Three Current-Carrying Conductors. Where the number of current-carrying conductors in a raceway or cable exceeds three,
or where single conductors or multiconductor cables are installed without maintaining spacing for a continuous length longer than 600 mm (24
in.) and are not installed in raceways, the allowable ampacity of each conductor shall be reduced as shown in Table 310.15(B)(3)(a) . Section
310.15(A)(2) exception shall not apply. Each current-carrying conductor of a paralleled set of conductors shall be counted as a current-carrying
conductor.
Where conductors of different systems, as provided in 300.3, are installed in a common raceway or cable, the adjustment factors shown in Table
310.15(B)(3)(a) shall apply only to the number of power and lighting conductors (Articles 210 , 215 , 220 , and 230 ).
Informational Note No. 1: See Annex B for adjustment factors for more than three current-carrying conductors in a raceway or cable with
load diversity.
Informational Note No. 2: See 366.23366.23 366.23(A) for adjustment factors for conductors and ampacity for bare copper and aluminum
bars in sheet metal auxiliary gutters and 376.22(B) for adjustment factors for conductors in metal wireways.
(1) Where conductors are installed in cable trays, the provisions of 392.80 shall apply.
(2) Adjustment factors shall not apply to conductors in raceways having a length not exceeding 600 mm (24 in.).
(3) Adjustment factors shall not apply to underground conductors entering or leaving an outdoor trench if those conductors have physical
protection in the form of rigid metal conduit, intermediate metal conduit, rigid polyvinyl chloride conduit (PVC), or reinforced thermosetting resin
conduit (RTRC) having a length not exceeding 3.05 m (10 ft), and if the number of conductors does not exceed four.
(4) Adjustment factors shall not apply to Type AC cable or to Type MC cable under the following conditions:
a. The cables do not have an overall outer jacket.
b. Each cable has not more than three current-carrying conductors.
c. The conductors are 12 AWG copper.
d. Not more than 20 current-carrying conductors are installed without maintaining spacing, are stacked, or are supported on “bridle rings.”
Exception: A 60 percent adjustment factor shall be applied if the current-carrying conductors in these cables that are stacked or bundled
longer than 600 mm (24 in.) without maintaining spacing exceeds 20.
(5) An adjustment factor of 60 percent shall be applied to Type AC cable or Type MC cable under the following conditions:
a. The cables do not have an overall outer jacket.
b. The number of current carrying conductors exceeds 20.
c. The cables are stacked or bundled longer that 600 mm (24 in. ) without spacing being maintained.
Table 310.15(B)(3)(a) Adjustment Factors for More Than than Three Current-Carrying Conductors
Number of
1
Conductors
Percent of Values in Table 310.15(B)(16) through Table 310.15(B)(19) as Adjusted for Ambient Temperature if Necessary
4–6
80
7–9
70
10–20
50
21–30
45
31–40
40
41 and above
35
1
Number of conductors is the total number of conductors in the raceway or cable, including spare conductors. The count shall be adjusted in
accordance with 310.15(B)(5) and (6). The count shall not include conductors that are connected to electrical components but that cannot be
simultaneously energized.
(b) Raceway Spacing. Spacing between raceways shall be maintained.
(c) Raceways and Cables Exposed to Sunlight on Rooftops. Where raceways or cables are exposed to direct sunlight on or above rooftops, the
adjustments shown in Table 310.15(B)(3)(c) raceways or cables shall be installed a minimum distance above the roof to the bottom of the
raceway or cable of 23 mm ( 7⁄8 in.). Where the distance above the roof to the bottom of the raceway is less than 23 mm ( 7⁄8 in.), a temperature
adder of 33°C (60°F) shall be added to the outdoor temperature to determine the applicable ambient temperature for application of the correction
factors in Table 310.15(B)(2)(a) or Table 310.15(B)(2)(b) .
Exception: Type XHHW-2 insulated conductors shall not be subject to this ampacity adjustment.
Informational Note: One source for the ambient temperatures in various locations is the ASHRAE Handbook — Fundamentals.
Table 310.15(B)(3)(c) Ambient Temperature Adjustment for Raceways or Cables Exposed to Sunlight on or Above Rooftops
Temperature Adder
Distance Above Roof to Bottom of Raceway or Cable
1
°C
°F
On roof 0 – 13 mm (0 – ⁄2 in.)
33
60
Above roof 13 mm – 90 mm ( 1⁄2 in. – 3 1⁄2 in.)
22
40
Above 90 mm – 300 mm (3 1⁄2 in. – 12 in.)
17
30
Above 300 mm – 900 mm (12 in. – 36 in.)
14
25
Informational Note to Table 310.15(B)(3)(c): The temperature adders in Table 310.15(B)(3)(c) are based on the measured temperature
rise above the local climatic ambient temperatures due to sunlight heating.
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Submitter Information Verification
Submitter Full Name: CMP 6
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 13:12:09 EST 2015
Committee Statement
Committee PI 3375: This text revision restores the requirement to that intended by the committee. The previous text unintentionally restricted the
Statement: installation of all Type MC and Type AC cables.
Based on additional information submitted from multiple sources, the rooftop adders were deleted, with the exception of wiring methods placed
in direct contact with the roof surface. This information includes:
Public Input 3373, which proposes to delete the adders with the exception of wiring methods placed directly on the rooftop. This public input
was based on the work of a task group formed by the NEC Correlating Committee and assigned to review and investigate the rooftop adders.
The basis for the substantiation states that “the present NEC method for derating conductor ampacity without the rooftop adders is more than
adequate” is based on the fact that the existing ampacity tables were developed prior to the introduction of the insulation types currently being
used and the ampacity tables and temperature correction values have not changed since. Additional findings proved that the heat inside a
raceway insulates it from solar radiation; therefore, the thermal effects of rooftop installations are not additive. The research indicates that
wiring methods placed directly on the rooftop will have higher internal temperatures. This public input further indicates that the original testing
submitted to the code-making panel failed to account for multiple methods of heat dissipation experienced in actual installations.
Public Input 3232, which proposes to delete the rooftop adders. Testing submitted indicates that wiring methods sized appropriately for the
load and located on rooftops anywhere in the United States will not exceed their temperature rating, even without these adders. The submitted
report also shows that even using the ambient temperature correction factors in Table 310.15(B)(2)(a) results in a conservative allowable
ampacity. The test setup collected data from wiring methods that were not in direct contact with the roof surface. Modeling and testing was
performed at a public university to support this Public Input.
Public Input 2809, which seeks complete relief from the provisions in the NEC for rooftop adders installed in industrial installations. Industrial
buildings are installed in the same locations as commercial and residential buildings, all of which are subject to the same rooftop conditions.
Public Input 1947, which correctly points out that no documented conductor failures due to exposure to direct sunlight have been reported to
the panel.
Changing the reference to 366.23 and deleting “sheet metal” from the informational note does not diminish the purpose of the informational
note, which is to direct the user to the appropriate article. Also, the text submitted in the public input did not show Table 310.15(B)(2)(a). The
assumption is that this was done for clarity and there was no intent to delete the table.
PI 1713: Remove "but" from the footnote of Table 310.15(B)(3)(a). The word "but" is awkward and should be removed.
Public Input No. 1-NFPA 70-2013 [Section No. 310.15(B)(3)]
Public Input No. 1500-NFPA 70-2014 [Section No. 310.15(B)(3)]
Public Input No. 1713-NFPA 70-2014 [Section No. 310.15(B)(3)]
Public Input No. 1947-NFPA 70-2014 [Section No. 310.15(B)(3)]
Public Input No. 2809-NFPA 70-2014 [Section No. 310.15(B)(3)]
Public Input No. 3232-NFPA 70-2014 [Section No. 310.15(B)(3)]
Public Input No. 3235-NFPA 70-2014 [Section No. 310.15(B)(3)]
Public Input No. 3373-NFPA 70-2014 [Section No. 310.15(B)(3)]
Public Input No. 3375-NFPA 70-2014 [Section No. 310.15(B)(3)]
Ballot Results
342 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
6 Affirmative All
3 Affirmative with Comments
2 Negative with Comments
1 Abstention
Affirmative All
Brush, Edwin F.
Friedman, Samuel B.
Riedl, Kenneth
Smith, Michael W.
Stacey, John
Wall, Carl Timothy
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Affirmative with Comment
Huddleston, Jr., Robert L.
The task group that was appointed by NFPA to explore rooftop ampacity adjustments did an admirable job of putting the issue to rest. The arbitrary 7/8"
height above the roof that this FR requires raceways and cables should be decreased to 3/4", which would not disallow many commonly used spacers,
such as a 1" planed wooden board. Also, the exception in this FR uses the terminology "ampacity adjustment", which should be changed to "correction
factor".
Kent, Gerald W.
While there is much evidence direct sunlight does add to the ambient temperature inside the conduit in direct sunlight, studies have also shown the
apparent overages in temperature correction factors of Table 310.15(B)(2)(a) makes an increase in the correction factor unnecessary. A study by the task
group to determine proper correction factors should be done to update Table 310.15(B)(2)(a) at which time the deletion of Table 310.15(B)(3)(c) would need
to be revisited.
Laidler, William F.
We are voting in favor of this first revision despite a disagreement with new language added to 310.15(B)(3)(a). The new language would not allow the
option to use the exception to 310.15(A)(2) where there are more than three current carrying conductors in a raceway or cable. The exception allows the
higher ampacity to be used for either 10% or 10’ whichever is less. This exception should apply for either temperature correction or adjustment for number
of conductors over three in a raceway or cable. The driving change in FR 1503 is the language change in 310.15(B)(3)(c) – Rooftops. We have reversed
our position on this issue because of new data. In previous cycles we felt strongly about our votes to retain the temperature adders based on the data
provided at the time. In response to PI 3773. since the 2005 code cycle Panel 6 has invested many hours addressing the issue of sunlight exposure on
rooftops and the impact that exposure has on the allowable ampacity of conductors. Most importantly- all the time invested providing recommendations,
research and studies done by the electrical industry. At the end of the 2014 cycle the Panel requested that the Correlating Committee to a point a
independent task group to address the concerns of Panel 6 ward. These concerns were the origination of the provided values in the ampacity tables and
that all the variables of these types of installations were being considered. PI 3773 was submitted as the end result of the work done per request of Panel
6. Those involved with the work were cautious to insure that they used data from previous studies, provided an open invitation to contribute and the study
was done by using impartial volunteers outside of the industry to record data and creating computer modeling. These factors alone strengthen the validity
of the testing. The task group came back and said for the most part up no one was wrong. The end result of the testing demonstrated that providing an
additional temperature adder on top of the ambient was not necessary due to the thermal dynamic effects of heat dissipation when conduits are exposed to
sunlight. As the conduit began to heat up on the outside it actually acted as an insulator so the temperature of the conductors were not affected as much as
previously thought. The only installation that showed that there was a problem was when the raceway was placed directly on the roof. This group was also
able to trace back the origination of the existing ampacity values. These values are based on testing that was done with code grade rubber. The types of
materials used in today’s insulation are far superior to code grade rubber. The work done by this task group is groundbreaking and it’s important that Panel
6 moves forward with their recommendations.
Negative with Comment
Xerri, Mario
The work performed by the University of Wisconsin for the benefit of the task group was based solely on modeling. While we support modeling, and the
work done by the University, there was no testing performed to validate any of the assumptions and conclusions presented. For the limited cases modeled,
which did not include any cable wiring systems, the model seemed to verify some of the conclusions made by the task group. However, the assumptions
and results of this model were never validated by any laboratory testing with actual rooftops and wiring systems exposed to sunlight as was done with
previous Fact-Finding Investigations. We would like to see more laboratory testing before the comment stage to verify the results of the model and the
conclusions made by the task group before a final decision is made on the appropriateness of deleting these temperature adders.
Zimnoch, Joseph S.
The information provided to the Panel was incomplete and unscientific. Materials were unavailable to many Panel members until the Public Input meeting
and not available for advance review by members. - The submitted Task Group work did not review and incorporate data from past work into its model
resulting in assumptions in the model that are inaccurate. The design of the experimentation had many flaws that rendered the scientific applicability
questionable, at best. Among examples, the Task Group and the model did not take into account white roofs that reflect sunlight onto conduit when raised
up off the roof. The model also did not take into account more than three current carrying conductors in a conduit. Thermal modeling is an accepted
industry practice when the assumptions are confirmed via testing. Unfortunately the model assumptions were not confirmed with actual testing. Past testing
that was accepted by the panel, show the assumed variables in the model to be incorrect. - The UNLV test report is flawed in many ways. The following is a
summary of the report and does not include all inconsistencies in the report. Submitted testing from UNLV only energized one of the ten installations where
only 2 of 4 size 12 AWG copper conductors were energized in ½ inch RMC. The 2 conductors were energized at 14.8 amps on a 20 amp rated cable from
the 60C ampacity column of Table 310.15(B)(16). This ampacity is based on 3 current carrying conductors and then was derated based on 4 conductors in
the conduit even though only 2 conductors were energized. The week the collected data was analyzed was selected at random rather than worst case. The
measured 30F temperature rise re-enforcing the current values when 8 inches off the roof corresponds per Table 31.15(B)(3)(c). It was also noted that the
temperature rise was notable higher on the jacketed MC Cable than the RMC. Resulting temperature of the two energized conductors was 67.5C which
would exceed the maximum temperature rating of a 60C rated conductor. The conclusion of “unlikely that wiring methods sized appropriately for the load
and located on rooftops anywhere in the United States will ever exceed their rated insulation temperature” contradicts the only energized circuit data found
in the report.
Abstention
Picard, Paul R.
The Aluminum Association supports the changes to the AC and MC ampacity adjustment factors; however, we could not reach consensus on the changes
to 310.15(B)(3)(c). Therefore, we will abstain on this FR.
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First Revision No. 1504-NFPA 70-2015 [ Section No. 310.15(B)(7) ]
(7) 120/240-Volt, Single-Phase Dwelling Services and Feeders.
For one-family dwellings and the individual dwelling units of two-family and multifamily dwellings, service and feeder conductors supplied by a
single-phase, 120/240-volt system shall be permitted to be sized in accordance with 310.15(B)(7)(1) through (4).
Single-phase feeders from a 208Y/120 volt system shall be permitted to use 310.15(B)(7)(1) through (4).
(1) For a service rated 100 through 400 A amperes , the service conductors supplying the entire load associated with a one-family dwelling, or
the service conductors supplying the entire load associated with an individual dwelling unit in a two-family or multifamily dwelling, shall be
permitted to have an ampacity not less than 83 percent of the service rating.
(2) For a feeder rated 100 through 400 A amperes , the feeder conductors supplying the entire load associated with a one-family dwelling, or
the feeder conductors supplying the entire load associated with an individual dwelling, unit in a two-family or multifamily dwelling, shall be
permitted to have an ampacity not less than 83 percent of the feeder rating.
(3) In no case shall a feeder for an individual dwelling unit be required to have an ampacity greater than that specified in 310.15(B)(7)(1) or (2).
(4) Grounded conductors shall be permitted to be sized smaller than the ungrounded conductors, provided that if the requirements of 220.61
and 230.42 for service conductors or the requirements of 215.2 and 220.61 for feeder conductors are met.
(5) Where correction or adjustment factors are required by 310.15(B)(2) or (3), they shall be permitted to be applied to the ampacity
associated with the temperature rating of the conductor.
Informational Note No. 1: The conductor ampacity may require other correction or adjustment factors applicable to the conductor
installation. The service or feeder ratings addressed by this section are based on the standard ampacity ratings from 240.6(A) .
Informational Note No. 2: See Example D7 in Annex D .
Supplemental Information
File Name
Description
Panel_6_FR_1513_cjf.docx
Submitter Information Verification
Submitter Full Name: CMP 6
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 14:16:57 EST 2015
Committee Statement
Committee
Statement:
The Canadian Electrical Code allows reduced conductor sizes for single dwellings, apartments and similar buildings for both 120/240 and
120/208 V feeder conductors. This revised language will contribute to harmonization of the NEC and CE Code requirements.
The load diversity in residential applications is similar whether the residence is fed with 120/240 or 120/208; therefore, 120/208 will be
added to 310.15(B)(7).
Temperature correction and adjustment factors are required in certain applications by 310.15(B)(2) and 310.15(B)(3)(a). The added
language in list item (5) clarifies their application.
Response
Message:
Public Input No. 1169-NFPA 70-2014 [Section No. 310.15(B)(7)]
Public Input No. 3477-NFPA 70-2014 [Section No. 310.15(B)(7)]
Public Input No. 3669-NFPA 70-2014 [Section No. 310.15(B)(7)]
Public Input No. 3786-NFPA 70-2014 [Section No. 310.15(B)(7)]
Public Input No. 4739-NFPA 70-2014 [Section No. 310.15(B)(7)]
Public Input No. 4807-NFPA 70-2014 [Section No. 310.15(B)(7)]
Public Input No. 2938-NFPA 70-2014 [Section No. 310.15(B)(7)]
Ballot Results
344 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
10 Affirmative All
0 Affirmative with Comments
2 Negative with Comments
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0 Abstention
Affirmative All
Brush, Edwin F.
Friedman, Samuel B.
Laidler, William F.
Picard, Paul R.
Riedl, Kenneth
Smith, Michael W.
Stacey, John
Wall, Carl Timothy
Xerri, Mario
Zimnoch, Joseph S.
Negative with Comment
Huddleston, Jr., Robert L.
1. Section 220.61(C)(1), which (4) references in the FR, states: Prohibited Reductions. There shall be no reduction of the neutral or grounded conductor
capacity applied to the amount in 220.61(C)(1) or portion of the amount in (C)(2) from that determined by the basic calculation: (1) any portion of the 3-wire
circuit consisting of 2 ungrounded conductors and the neutral conductor of a 4-wire, wye-connected 3-phase system. 2. Section 310.15(B)(5)(b) states: In a
3-wire circuit consisting of two phase conductors and the neutral conductor of a 4-wire, 3-phase wye-connected system, a common conductor carries
approximately the same current as the line-to-neutral load currents of the other conductors and shall be counted when applying the provisions of 310.15(B)
(3)(a). 3. In addition, the ampacity adjustment for the grounded conductor allowed in single-phase 120/240 volt systems is based on the fact that when the
two phase conductor currents are balanced, there is no current at all in the grounded conductor. If the two phase conductor currents are not identical, the
grounded conductor only carries the imbalance, which is generally a very low amount of current. Because of this, the neutral is not really considered a
current-carrying conductor and it does not produce heat in the raceway or cabling encasing the feeder. However, if the grounded conductor conducts
significant current, as it would in a 3-wire 208/120 volt system, heat would be generated in this conductor. This should eliminate the reduction in sizing that
FR 1504 allows.
Kent, Gerald W.
No technical substantiation was provide to allow for this change. In a 120/240v systems, heat is generated in effectively two conductors under full load. In
a fully loaded 120/208v system, heat would be generated in all three conductors. Time honored tradition has shown the deductions work for 120/240v
systems I believe due to the 'zero' effect of the neutral load that would not be present in 120/208v system.
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First Revision No. 1505-NFPA 70-2015 [ Section No. 310.15(C) ]
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(C) Engineering Supervision.
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Under engineering supervision, conductor ampacities shall be permitted to be calculated by means of the following general equation:
[310.15(C)]
where:
T = = conductor temperature in degrees Celsius (°C)
c
T = = ambient temperature in degrees Celsius (°C)
a
R = = dc resistance of 305 mm (1 ft) of conductor in microohms at temperature, T
dc
c
Y = = component ac resistance resulting from skin effect and proximity effect
c
R = = effective thermal resistance between conductor and surrounding ambient
ca
Table 310.15(B)(16) (formerly Table 310.16) Allowable Ampacities of Insulated Conductors Rated Up to and Including 2000 Volts, 60°C Through
90°C (140°F Through 194°F), Not More Than Three Current-Carrying Conductors in Raceway, Cable, or Earth (Directly Buried), Based on
Ambient Temperature of 30°C (86°F)*
Temperature Rating of Conductor [See Table 310.104(A).]
Size
AWG or
kcmil
60°C
(140°F)
75°C (167°F)
90°C (194°F)
Types
TW, UF
Types RHW,
THHW, THW,
THWN, XHHW,
USE, ZW
Types TBS, SA, SIS, FEP,
FEPB, MI, RHH, RHW-2, THHN,
THHW, THW-2, THWN-2, USE-2,
XHH, XHHW, XHHW-2, ZW-2
60°C
(140°F)
75°C (167°F)
90°C (194°F)
Types
TW, UF
Types RHW,
THHW, THW,
THWN, XHHW,
USE
Types TBS, SA, SIS, THHN,
THHW, THW-2, THWN-2,
RHH, RHW-2, USE-2, XHH,
XHHW, XHHW-2, ZW-2
COPPER
Size
AWG or
kcmil
ALUMINUM OR COPPER-CLAD ALUMINUM
18**
—
—
14
—
—
—
—
16**
—
—
18
—
—
—
—
14**
15
20
25
—
—
—
—
12**
20
25
30
15
20
25
12**
10**
30
35
40
25
30
35
10**
8
40
50
55
35
40
45
8
6
55
65
75
40
50
55
6
4
70
85
95
55
65
75
4
3
85
100
115
65
75
85
3
2
95
115
130
75
90
100
2
1
110
130
145
85
100
115
1
1/0
125
150
170
100
120
135
1/0
2/0
145
175
195
115
135
150
2/0
3/0
165
200
225
130
155
175
3/0
4/0
195
230
260
150
180
205
4/0
250
215
255
290
170
205
230
250
300
240
285
320
195
230
260
300
350
260
310
350
210
250
280
350
400
280
335
380
225
270
305
400
500
320
380
430
260
310
350
500
600
350
420
475
285
340
385
600
700
385
460
520
315
375
425
700
750
400
475
535
320
385
435
750
800
410
490
555
330
395
445
800
900
435
520
585
355
425
480
900
1000
455
545
615
375
445
500
1000
1250
495
590
665
405
485
545
1250
1500
525
625
705
435
520
585
1500
1750
545
650
735
455
545
615
1750
2000
555
665
750
470
560
630
2000
*Refer to 310.15(B)(2) for the ampacity correction factors where the ambient temperature is other than 30°C (86°F). Refer to 310.15(B)(3)(a) for
more than three current-carrying conductors.
**Refer to 240.4(D) for conductor overcurrent protection limitations.
Table 310.15(B)(17) (formerly Table 310.17) Allowable Ampacities of Single-Insulated Conductors Rated Up to and Including 2000 Volts in Free
Air, Based on Ambient Temperature of 30°C (86°F)*
Size
AWG or
kcmil
Temperature Rating of Conductor [See Table 310.104(A).]
60°C
(140°F)
75°C (167°F)
90°C (194°F)
60°C
(140°F)
75°C (167°F)
90°C (194°F)
Size
AWG or
kcmil
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Types RHW,
Types TBS, SA, SIS, FEP, FEPB,
THHW, THW,
MI, RHH, RHW-2, THHN, THHW,
THWN, XHHW,
THW-2, THWN-2, USE-2, XHH,
ZW
XHHW, XHHW-2, ZW-2
Types
TW, UF
Types
TW, UF
COPPER
Types TBS, SA, SIS, THHN,
THHW, THW-2, THWN-2,
RHH, RHW-2, USE-2, XHH,
XHHW, XHHW-2, ZW-2
Types RHW,
THHW, THW,
THWN, XHHW
ALUMINUM OR COPPER-CLAD ALUMINUM
18
—
—
18
—
—
—
—
16
—
—
24
—
—
—
—
—
—
—
14**
25
30
35
12**
30
35
40
25
30
35
12**
—
10**
40
50
55
35
40
45
10**
8
60
70
80
45
55
60
8
6
80
95
105
60
75
85
6
4
105
125
140
80
100
115
4
3
120
145
165
95
115
130
3
2
140
170
190
110
135
150
2
1
165
195
220
130
155
175
1
1/0
195
230
260
150
180
205
1/0
2/0
225
265
300
175
210
235
2/0
3/0
260
310
350
200
240
270
3/0
4/0
300
360
405
235
280
315
4/0
250
340
405
455
265
315
355
250
300
375
445
500
290
350
395
300
350
420
505
570
330
395
445
350
400
455
545
615
355
425
480
400
500
515
620
700
405
485
545
500
600
575
690
780
455
545
615
600
700
630
755
850
500
595
670
700
750
655
785
885
515
620
700
750
800
680
815
920
535
645
725
800
900
730
870
980
580
700
790
900
1000
780
935
1055
625
750
845
1000
1250
890
1065
1200
710
855
965
1250
1500
980
1175
1325
795
950
1070
1500
1750
1070
1280
1445
875
1050
1185
1750
2000
1155
1385
1560
960
1150
1295
2000
*Refer to 310.15(B)(2) for the ampacity correction factors where the ambient temperature is other than 30°C (86°F).
**Refer to 240.4(D) for conductor overcurrent protection limitations.
Table 310.15(B)(18) (formerly Table 310.18) Allowable Ampacities of Insulated Conductors Rated Up to and Including 2000 Volts, 150°C
Through 250°C (302°F Through 482°F). Not More Than Three Current-Carrying Conductors in Raceway or Cable, Based on Ambient Air
Temperature of 40°C (104°F)*
Temperature Rating of Conductor [See Table 310.104(A).]
Size AWG or
kcmil
150°C
(302°F)
200°C (392°F)
250°C (482°F)
150°C (302°F)
Type Z
Types FEP, FEPB,
PFA, SA
Types PFAH, TFE
Type Z
NICKEL OR NICKEL-COATED
COPPER
ALUMINUM OR COPPER-CLAD
ALUMINUM
COPPER
—
Size AWG or
kcmil
14
34
36
39
12
43
45
54
30
14
12
10
55
60
73
44
10
8
76
83
93
57
8
6
96
110
117
75
6
4
120
125
148
94
4
3
143
152
166
109
3
2
160
171
191
124
2
1
186
197
215
145
1
1/0
215
229
244
169
1/0
2/0
251
260
273
198
2/0
3/0
288
297
308
227
3/0
4/0
332
346
361
260
4/0
*Refer to 310.15(B)(2) for the ampacity correction factors where the ambient temperature is other than 40°C (104°F). Refer to 310.15(B)(3)(a) for
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more than three current-carrying conductors.
Table 310.15(B)(19) (formerly Table 310.19) Allowable Ampacities of Single-Insulated Conductors, Rated Up to and Including 2000 Volts, 150°C
Through 250°C (302°F Through 482°F), in Free Air, Based on Ambient Air Temperature of 40°C (104°F)*
Temperature Rating of Conductor [See Table 310.104(A).]
Size AWG or
kcmil
150°C
(302°F)
200°C (392°F)
250°C (482°F)
150°C (302°F)
Type Z
Types FEP, FEPB,
PFA, SA
Types PFAH, TFE
Type Z
NICKEL, OR NICKEL-COATED
COPPER
ALUMINUM OR COPPER-CLAD
ALUMINUM
COPPER
Size AWG or
kcmil
14
46
54
59
12
60
68
78
47
—
14
12
10
80
90
107
63
10
8
106
124
142
83
8
6
155
165
205
112
6
4
190
220
278
148
4
3
214
252
327
170
3
2
255
293
381
198
2
1
293
344
440
228
1
1/0
339
399
532
263
1/0
2/0
390
467
591
305
2/0
3/0
451
546
708
351
3/0
4/0
529
629
830
411
4/0
*Refer to 310.15(B)(2) for the ampacity correction factors where the ambient temperature is other than 40°C (104°F).
Table 310.15(B)(20) (formerly Table 310.20) Ampacities of Not More Than Three Single Insulated Conductors, Rated Up to and Including 2000
Volts, Supported on a Messenger, Based on Ambient Air Temperature of 40°C (104°F)*
Temperature Rating of Conductor [See Table 310.104(A).]
75°C (167°F)
90°C (194°F)
Size AWG Types RHW, THHW,
or kcmil
THW, THWN,
XHHW, ZW
Types MI, THHN, THHW, THW-2,
THWN-2, RHH, RHW-2, USE-2,
XHHW, XHHW-2, ZW-2
75°C (167°F)
90°C (194°F)
Types RHW, THW, Types THHN, THHW, RHH, XHHW, Size AWG
or kcmil
THWN, THHW,
RHW-2, XHHW-2, THW-2,
XHHW
THWN-2, USE-2, ZW-2
COPPER
ALUMINUM OR COPPER-CLAD ALUMINUM
8
57
66
44
51
8
6
76
89
59
69
6
4
101
117
78
91
4
3
118
138
92
107
3
2
135
158
106
123
2
1
158
185
123
144
1
1/0
183
214
143
167
1/0
2/0
212
247
165
193
2/0
3/0
245
287
192
224
3/0
4/0
287
335
224
262
4/0
250
320
374
251
292
250
300
359
419
282
328
300
350
397
464
312
364
350
400
430
503
339
395
400
500
496
580
392
458
500
600
553
647
440
514
600
700
610
714
488
570
700
750
638
747
512
598
750
800
660
773
532
622
800
900
704
826
572
669
900
1000
748
879
612
716
1000
*Refer to 310.15(B)(2) for the ampacity correction factors where the ambient temperature is other than 40°C (104°F). Refer to 310.15(B)(3)(a) for
more than three current-carrying conductors.
Table 310.15(B)(21) (formerly Table 310.21) Ampacities of Bare or Covered Conductors in Free Air, Based on 40°C (104°F) Ambient, 80°C
(176°F) Total Conductor Temperature, 610 mm/sec (2 ft/sec) Wind Velocity
Copper Conductors
Bare
AAC Aluminum Conductors
Covered
Bare
Covered
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Amperes
AWG or kcmil
Amperes
AWG or kcmil
Amperes
AWG or kcmil
Amperes
8
98
8
103
8
76
8
80
6
124
6
130
6
96
6
101
4
155
4
163
4
121
4
127
2
209
2
219
2
163
2
171
1/0
282
1/0
297
1/0
220
1/0
231
2/0
329
2/0
344
2/0
255
2/0
268
3/0
382
3/0
401
3/0
297
3/0
312
4/0
444
4/0
466
4/0
346
4/0
364
250
494
250
519
266.8
403
266.8
423
300
556
300
584
336.4
468
336.4
492
500
773
500
812
397.5
522
397.5
548
750
1000
750
1050
477.0
588
477.0
617
1000
1193
1000
1253
556.5
650
556.5
682
—
—
—
—
636.0
709
636.0
744
—
—
—
—
795.0
819
795.0
860
—
—
—
—
954.0
920
—
—
—
—
—
1033.5
968
1033.5
1017
—
—
—
—
1272
1103
1272
1201
—
—
—
—
1590
1267
1590
1381
—
—
—
—
2000
1454
2000
1527
—
Submitter Information Verification
Submitter Full Name: CMP 6
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 14:47:23 EST 2015
Committee Statement
Committee
Statement:
Adding a reference to 310.15(B)(3)(a) in the note increases usability. The other notes suggested by this public input create too much
duplication of code text.
Type USE is acceptable for use at ampacities corresponding to the 75C columns.
Response Message:
Public Input No. 609-NFPA 70-2014 [Section No. 310.15(C)]
Public Input No. 1710-NFPA 70-2014 [Section No. 310.15(C)]
Ballot Results
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This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Brush, Edwin F.
Friedman, Samuel B.
Huddleston, Jr., Robert L.
Kent, Gerald W.
Laidler, William F.
Picard, Paul R.
Riedl, Kenneth
Smith, Michael W.
Stacey, John
Wall, Carl Timothy
Xerri, Mario
Zimnoch, Joseph S.
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First Revision No. 1506-NFPA 70-2015 [ Section No. 310.60(B) [Excluding any Sub-Sections] ]
Ampacities for conductors rated 2001 to 35,000 volts shall be as specified in Table 310.60(C)(67) through Table 310.60(C)(86) . Ampacities for
ambient temperatures other than those specified in the ampacity tables shall be corrected in accordance with 310.60(C)(4)310.60(C)
(4) 310.60(B)(4) .
Informational Note No. 1: For ampacities calculated in accordance with 310.60(A), reference IEEE 835-1994 (IPCEA Pub. No. P-46-426) ,
Standard Power Cable Ampacity Tables, and the references therein for availability of all factors and constants.
Informational Note No. 2: Ampacities provided by this section do not take voltage drop into consideration. See 210.19(A), Informational
Note No. 4, for branch circuits and 215.2(A) , Informational Note No. 2, for feeders.
Submitter Information Verification
Submitter Full Name: CMP 6
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 15:00:20 EST 2015
Committee Statement
Committee Statement: All reference to the IPCEA publication has been omitted due to the publication being no longer available.
Response Message:
Public Input No. 1699-NFPA 70-2014 [Section No. 310.60(B) [Excluding any Sub-Sections]]
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0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Brush, Edwin F.
Friedman, Samuel B.
Huddleston, Jr., Robert L.
Kent, Gerald W.
Laidler, William F.
Picard, Paul R.
Riedl, Kenneth
Smith, Michael W.
Stacey, John
Wall, Carl Timothy
Xerri, Mario
Zimnoch, Joseph S.
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First Revision No. 1507-NFPA 70-2015 [ Section No. 310.60(B)(2) ]
(2) Burial Depth of Underground Circuits.
Where the burial depth of direct burial or electrical duct bank circuits is modified from the values shown in a figure or table, ampacities shall be
permitted to be modified as indicated in (C) (B) (2)(a) and (C) (B) (2)(b).
(a) Where burial depths are increased in part(s) of an electrical duct run, no a decrease in ampacity of the conductors is needed shall not be
required , provided the total length of parts of the duct run increased in depth is less than 25 percent of the total run length.
(b) Where burial depths are deeper than shown in a specific underground ampacity table or figure, an ampacity derating factor of 6 percent per
300-mm 300 mm (1-ft 1 ft ) increase in depth for all values of rho shall be permitted.
No rating change is needed ampacity adjustments shall be required where the burial depth is decreased.
Submitter Information Verification
Submitter Full Name: CMP 6
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 15:04:33 EST 2015
Committee Statement
Committee Statement: These proposed changes should be viewed as editorial revisions, seeking to create an enforceable statement.
Response Message:
Public Input No. 1698-NFPA 70-2014 [Section No. 310.60(B)(2)]
Public Input No. 1960-NFPA 70-2014 [Section No. 310.60(B)(2)]
Ballot Results
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0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Brush, Edwin F.
Friedman, Samuel B.
Huddleston, Jr., Robert L.
Kent, Gerald W.
Laidler, William F.
Picard, Paul R.
Riedl, Kenneth
Smith, Michael W.
Stacey, John
Wall, Carl Timothy
Xerri, Mario
Zimnoch, Joseph S.
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First Revision No. 1520-NFPA 70-2015 [ Section No. 310.60(C) ]
(B) Engineering Supervision.
Under engineering supervision, conductor ampacities shall be permitted to be calculated by using the following general equation:
[310.60(B)]
where:
T = = conductor temperature (°C)
c
T = = ambient temperature (°C)
a
∆T = = dielectric loss temperature rise
d
R = = dc resistance of conductor at temperature T
dc
c
Y = = component ac resistance resulting from skin effect and proximity effect
c
R = = effective thermal resistance between conductor and surrounding ambient
ca
Informational Note: The dielectric loss temperature rise (∆T ) is negligible for single circuit extruded dielectric cables rated below 46 kV.
d
Submitter Information Verification
Submitter Full Name: CMP 6
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 14:13:32 EST 2015
Committee Statement
Committee
Statement:
In order to comply with NEC style manual and to correlate with references in Section 310.60, the panel changes the designation for
section " (B)Tables" to "(C) Tables" and "(C) Engineering Supervision" to "(B) Engineering Supervision" .
Response
Message:
Public Input No. 1698-NFPA 70-2014 [Section No. 310.60(B)(2)]
Public Input No. 3321-NFPA 70-2014 [Section No. 310.60(B)(4)]
Public Input No. 3324-NFPA 70-2014 [Global Input]
Public Input No. 1707-NFPA 70-2014 [Section No. 310.60(C)]
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0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Brush, Edwin F.
Friedman, Samuel B.
Huddleston, Jr., Robert L.
Kent, Gerald W.
Laidler, William F.
Picard, Paul R.
Riedl, Kenneth
Smith, Michael W.
Stacey, John
Wall, Carl Timothy
Xerri, Mario
Zimnoch, Joseph S.
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First Revision No. 1517-NFPA 70-2015 [ Section No. 310.104 ]
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310.104 Conductor Constructions and Applications.
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Insulated conductors shall comply with the applicable provisions of Table 310.104(A) through Table 310.104(E) .
Informational Note: Thermoplastic insulation may stiffen at temperatures lower than -10°C (+14°F). Thermoplastic insulation may also be
deformed at normal temperatures where subjected to pressure, such as at points of support.
1
Table 310.104(A) Conductor Applications and Insulations Rated 600 Volts
Trade Name
Type
Letter
Maximum
Operating
Temperature
90°C
( 194°F)
Fluorinated ethylene
propylene
FEP or
FEPB
200°C
( 392°F)
Thickness of Insulation
Application Provisions
Insulation
Dry and damp locations
Fluorinated
ethylene
propylene
Dry locations — special
3
applications
Fluorinated
ethylene
propylene
MI
250°C
( 482°F)
60°C
( 140°F)
Magnesium oxide
For special applications
3
mm
mils
Outer
2
Covering
14–10
0.51 20
8–2
0.76 30
14–8
0.36 14
Glass braid
6–2
0.36 14
Glass or other
suitable braid
material
4
18–16 16–10
90°C ( 194°F) Dry and wet locations
Mineral insulation
(metal sheathed)
AWG or
kcmil
9–4
3–500
None
0.58 23
0.91 36
1.27 50
Copper or alloy
steel
1.40 55
(A) (A) (B)
(B)
Machine tool wiring in
wet locations
0.76 0.38
0.76 0.51
22–12
Moisture-, heat-, and
oil-resistant
thermoplastic
MTW
90°C
( 194°F)
Flame-retardant,
Machine tool wiring in dry moisture-, heat-,
and oil-resistant
locations.
thermoplastic
Informational Note: See
NFPA 79.
10 8
6
4–2
1–4/0
213–500
501–1000
30 15
1.14 30 20
0.76
45 30 (A) None
1.52 60 30 (B) Nylon jacket
0.76
60 40 or equivalent
1.52 80 50
1.02
95 60
2.03 1.27 110 70
2.41 1.52
2.79 1.78
85°C
Paper
( 185°F)
90°C
Perfluoro-alkoxy
Perfluoro-alkoxy
PFA
PFAH
( 194°F)
For underground service
conductors, or by special Paper
permission
Dry and damp locations
Dry locations — special
200°C ( 392°F)
3
applications
250°C
( 482°F)
Lead sheath
Dry locations only. Only
for leads within
apparatus or within
raceways connected to
apparatus (nickel or
nickel-coated copper
only)
Perfluoro-alkoxy
14–10
8–2 1–4/0
14–10
Perfluoro-alkoxy
Thermoset
RHH
( 194°F)
14-10
1.14
213–500
501–1000
1001–2000
RHW
Moisture- resistant
75°C
( 167°F)
Dry and wet locations
thermoset
RHW-2
Silicone
SA
90°C
Flame-retardant,
moistureresistant
thermoset
( 194°F)
90°C
( 194°F)
1.14
8–2
1.52
1–4/0
2.03
213–500
2.41
1001–2000
Dry and damp locations
Silicone rubber
45
1.52
60 80
2.03
95
2.41
110
2.79
125
3.18
14–10
501–1000
45
60
80
95
2.79
110 125
3.18
14–10
1.14 45
8–2
1.52 60
1–4/0
2.03 80
213–500
2.41 95
501–1000
2.79 110 125
3 18
1001 2000
None
0.51
1–4/0
1–4/0
Dry and damp locations
20
0.76
30 45
1.14
20
0.76
30 45
1.14
8–2
8–2
90°C
0.51
None
Moistureresistant, flameretardant,
nonmetallic
2
covering
Moistureresistant, flameretardant,
nonmetallic
covering
Glass or other
suitable braid
material
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Trade Name
Type
Letter
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Maximum
Operating
Temperature
Thickness of Insulation
Application Provisions
200°C
( 392°F)
Thermoset
Thermoplastic and
fibrous outer braid
SIS
TBS
Extended polytetrafluoro-
TFE
ethylene
90°C
( 194°F)
For special application
Insulation
AWG or
kcmil
( 194°F)
250°C
( 482°F)
Switchboard and
switchgear wiring only
Flame-retardant
thermoset
14–10
8–2 1–4/0
Switchboard and
switchgear wiring only
Thermoplastic
8 6–2
1–4/0
Dry locations only. Only
for leads within
apparatus or within
raceways connected to
apparatus, or as open
wiring (nickel or nickelcoated copper only)
Extruded
polytetrafluoroethylene
14–10
8–2 1–4/0
14–12
10 8–6
Heat-resistant
thermoplastic
THHN
90°C
( 194°F)
Dry and damp locations
Flame-retardant,
heat-resistant
thermoplastic
4–2
1–4/0
250–500
501–1000
75°C
Moisture- and
heat-resistant
thermoplastic
( 167°F)
Wet location
THHW
90°C
( 194°F)
( 167°F)
Moisture- and
heat-resistant
thermoplastic
THW
90°C
( 194°F)
THW-2
THWN
Moisture- and
heat-resistant
thermoplastic
90°C
( 194°F)
Dry location
Flame-retardant,
moisture- and
heat-resistant
thermoplastic
Special applications
within electric discharge
lighting equipment.
Limited to 1000
open-circuit volts or less.
(size 14-8 only as
permitted in 410.68)
Flame-retardant,
moisture- and
heat-resistant
thermoplastic
( 167°F)
thermoplastic
90°C
Flame-retardant,
moisture- and
heat-resistant
thermoplastic
Dry and wet locations
Flame-retardant,
moisture- resistant
thermoplastic
employing more than
one conductor, see
Article 340.)
60°C
Moisture-
( 140°F)
resistant
UF
See Article 340.
75°C
( 167°F)
5
0.51 15
0.76 20 30
1.02 40
1.27 50
1.52 60 70
Nylon jacket or
equivalent
1.78
1–4/0
2.03
30
45
60
80
2.41
95 110
2.79
125
3.18
14–10
0.76
8
1.14
6–2
1.52
1–4/0
2.03
213–500
501–1000
None
30
45
60
80
2.41
95 110
2.79
125
3.18
14–12
0.38
10
0.51
8–6
0.76
4–2
1.02
1–4/0
250–500
1–4/0
213–500
501–1000
1001–2000
Underground feeder
and branch-circuit
cable — single
conductor (for Type
UF cable
None
0.38
1.52
1001–2000
( 194°F)
60°C
Flameretardant,
nonmetallic
covering
None
Dry and wet locations
75°C
( 140°F)
20
0.76
30 45
1.14
6–2
213–500
501–1000
None
0.51
1.14
8 6–2
TW
30
1.14
45 60
1.52
80
2.03
0.76
14–10
resistant
0.76
8
501–1000
Moisture-
30
1.14
45 55
2.41
Dry and wet locations
Dry and wet locations
THWN-2
Outer
2
Covering
0.76
14–10
1001–2000
75°C
mils
3
14–10
90°C
mm
Moisture- and
heat-resistant
20
30
40
Nylon jacket or
equivalent
1.27
50 60
1.52
70
1.78
0.76
1.14 30
1.52 45 60
2.03 80
None
2.41 95
2.79 110 125
3.18
14–10
1.52
8–2
2.03
1–4/0
15
6 6
60 80 Integral with
insulation
6
2.41 95
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Trade Name
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Maximum
Operating
Temperature
Thickness of Insulation
Application Provisions
Insulation
AWG or
kcmil
mm
mils
Outer
2
Covering
Underground serviceentrance cable —
single conductor (for
Type USE cable
employing more than
one conductor, see
Article 338.)
8–2
1.14 45
1.52 60
1–4/0
2.03 80
14–10
75°C
USE
( 167°F)
5
See Article 338.
Heat- and
moisture-resistant
213–500
501–1000
90°C
USE-2
( 194°F)
1001–2000
Dry and wet locations
14–10
Thermoset
90°C
XHH
( 194°F)
Dry and damp locations
Flame-retardant
thermoset
8–2 1–4/0
213–500
501–1000
1001–2000
14–12
10
Thermoset
90°C
XHHN
(194°F)
Dry and damp locations
Flame-retardant
thermoset
8–6
4–2 1–4/0
250–500
501–1000
14–10
90°C
Moistureresistant
XHHW
thermoset
Dry and damp locations Flame-retardant,
( 194°F)
moisture- resistant
Wet locations
thermoset
75°C ( 167°F)
8–2 1–4/0
213–500
501–1000
1001–2000
14–10
Moistureresistant
90°C
XHHW-2
( 194°F)
thermoset
Dry and wet locations
Flame-retardant,
moisture- resistant
thermoset
(167°F)
Moistureresistant
Dry and wet locations
thermoset
90°C
XHWN-2
Dry and damp locations Modified ethylene
Dry locations — special tetrafluoro( 194°F)
ethylene
150°C ( 302°F) applications3
75°C
Modified ethylene
tetrafluoro-
( 167°F)
ZW
ethylene
1
2
3
4
5
6
90°C
( 194°F)
0.38
0.51 15 20
0.76 30
1.02 40
1.27 50 60
1.52 70
0.76
30
1.14
45 55
1.40
65
1.65
80
2.03
95
2.41
30
1.14
45 55
1.40
65
1.65
80
2.03
95
2.41
8–6
0.76
4–2
1.02
1–4/0
1.27
250–500
1.52
501–1000
1.78
3–1
1/0–4/0
None
0.76
0.51
10 8–4
Nylon jacket or
equivalent
1.78
0.38
14–12
None
None
15
20
30
40 50
Nylon jacket or
equivalent
60
70
0.38
15
0.51
20 25
0.64
35
0.89
45
1.14
None
Wet locations
Dry and damp locations Modified ethylene
tetrafluoro-
90°C ( 194°F) Dry locations — special
150°C
3
( 302°F)
applications
ZW-2
30
1.14
45 55
1.40
65
1.65
80
2.03
95
2.41
10
resistant
thermoset
(194°F)
0.76
14–12
Flame-retardant,
moisture-
90°C
Z
213–500
501–1000
1001–2000
75°C
XHWN
Modified ethylene
tetrafluoro- ethylene
8–2 1–4/0
2.41 95 7
2.79 110
3.18 125
Moistureresistant
nonmetallic
covering (See
338.2.)
ethylene
14–10
0.76 30
8–2
1.14 45
None
Dry and wet locations
Conductors can be rated up to 1000 V if listed and marked.
Some insulations do not require an outer covering.
Where design conditions require maximum conductor operating temperatures above 90°C (194°F).
For signaling circuits permitting 300-volt insulation.
For ampacity limitation, see 340.80.
Includes integral jacket.
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7
Insulation thickness shall be permitted to be 2.03 mm (80 mils) for listed Type USE conductors that have been subjected to special
investigations. The nonmetallic covering over individual rubber-covered conductors of aluminum-sheathed cable and of lead-sheathed or
multiconductor cable shall not be required to be flame retardant. For Type MC cable, see 330.104. For nonmetallic-sheathed cable, see Article
334, Part III. For Type UF cable, see Article 340, Part III.
Table 310.104(B) Thickness of Insulation for Nonshielded Types RHH and RHW Solid Dielectric Insulated Conductors Rated 2000 Volts
Conductor Size
Column A
(AWG or kcmil)
1
2
1
mm
2
Column B
mils
mm
mils
14–10
2.03
80
1.52
60
8
2.03
80
1.78
70
6–2
2.41
95
1.78
70
1–2/0
2.79
110
2.29
90
3/0–4/0
2.79
110
2.29
90
213–500
3.18
125
2.67
105
501–1000
3.56
140
3.05
120
1001–2000
3.56
140
3.56
140
Column A insulations are limited to natural, SBR, and butyl rubbers.
Column B insulations are materials such as cross-linked polyethylene, ethylene propylene rubber, and composites thereof.
Table 310.104(C) Conductor Application and Insulation Rated 2001 Volts and Higher
Trade
Type
Letter
Name
Maximum Operating
Temperature
Application
Provision
Insulation
Outer Covering
ThermoMedium voltage solid
dielectric
MV-90
90°C
MV-105*
105°C
plastic or
thermo-
Dry or wet locations
Jacket, sheath, or
armor
setting
*Where design conditions require maximum conductor temperatures above 90°C.
Table 310.104(D) Thickness of Insulation and Jacket for Nonshielded Solid Dielectric Insulated Conductors Rated 2001 to 5000 Volts
Dry Locations, Single Conductor
Wet or Dry Locations
With Jacket
Conductor Size
Single Conductor
Without Jacket Insulation
(AWG or kcmil)
Multiconductor Insulation*
Insulation
mm
mils
mm
mils
Jacket
mm mils
Insulation
mm
Jacket
mils
mm mils
mm
mils
8
2.79
110
2.29 90
0.76 30
3.18 125
2.03 80
2.29
90
6
2.79
110
2.29 90
0.76 30
3.18 125
2.03 80
2.29
90
4–2
2.79
110
2.29 90
1.14 45
3.18 125
2.03 80
2.29
90
1–2/0
2.79
110
2.29 90
1.14 45
3.18 125
2.03 80
2.29
90
3/0–4/0
2.79
110
2.29 90
1.65 65
3.18 125
2.41 95
2.29
90
213–500
3.05
120
2.29 90
1.65 65
3.56 140
2.79 110
2.29
90
501–750
3.30
130
2.29 90
1.65 65
3.94 155
3.18 125
2.29
90
751–1000
3.30
130
2.29 90
1.65 65
3.94 155
3.18 125
2.29
90
1001–1250
3.56
140
2.92 115
1.65 65
4.32 170
3.56 140
2.92
115
1251–1500
3.56
140
2.92 115
2.03 80
4.32 170
3.56 140
2.92
115
1501–2000
3.56
140
2.92 115
2.03 80
4.32 170
3.94 155
3.56
140
*Under a common overall covering such as a jacket, sheath, or armor.
Table 310.104(E) Thickness of Insulation for Shielded Solid Dielectric Insulated Conductors Rated 2001 to 35,000 Volts
2001–5000
5001–8000 Volts
Volts
100
Conductor Percent
Size
Insulation
(AWG
1
Level
or kcmil)
mm mils
100
Percent
Insulation
Level
1
133
Percent
Insulation
Level
2
8001–15,000 Volts
173
100
Percent
133
Percent
Insulation
3
Level
Insulation
Insulation
Percent
Level
1
Level
2
15,001–25,000 Volts
173
100
Percent
133
Percent
Insulation
3
Level
Insulation
Insulation
Percent
Level
1
Level
2
173
Percent
Insulation
3
Level
mm mils
mm mils
mm mils
mm mils
mm mils
mm mils
mm mils
mm mils
mm mils
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
8
2.29 90
6–4
2.29 90
2.92 115
3.56 140
4.45 175
2
2.29 90
2.92 115
3.56 140
4.45 175
4.45 175
5.59 220
6.60 260
1
2.29 90
2.92 115
3.56 140
4.45 175
4.45 175
5.59 220
6.60 260
6.60 260
8.13 320
10.67 420
1/0–2000 2.29 90
2.92 115
3.56 140
4.45 175
4.45 175
5.59 220
6.60 260
6.60 260
8.13 320
10.67 420
Conductor
—
—
25,001–28,000 volts
—
28,001–35,000 volts
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100 Percent
133 Percent
173
100 Percent
133 Percent
173
Insulation
Insulation
Percent
Insulation
Insulation
Percent
3
Insulation Level
Level
(AWG
Level
or kcmil)
mm
1
mils
Level
mm
2
mils
1
Level
2
Insulation Level
mm
mils
mm
mils
mm
mils
mm
1
7.11
280
8.76
345
11.30
445
—
—
—
—
—
—
1/0–2000
7.11
280
8.76
345
11.30
445
14.73
580
8.76
345
10.67
420
3
mils
1
100 Percent Insulation Level. Cables in this category shall be permitted to be applied where the system is provided with relay protection such
that ground faults will be cleared as rapidly as possible but, in any case, within 1 minute. While these cables are applicable to the great majority
of cable installations that are on grounded systems, they shall be permitted to be used also on other systems for which the application of cables
is acceptable, provided the above clearing requirements are met in completely de-energizing the faulted section.
2
133 Percent Insulation Level. This insulation level corresponds to that formerly designated for ungrounded systems. Cables in this category
shall be permitted to be applied in situations where the clearing time requirements of the 100 percent level category cannot be met and yet there
is adequate assurance that the faulted section will be de-energized in a time not exceeding 1 hour. Also, they shall be permitted to be used in
100 percent insulation level applications where additional insulation is desirable.
3
173 Percent Insulation Level. Cables in this category shall be permitted to be applied under all of the following conditions:
(1) In industrial establishments where the conditions of maintenance and supervision ensure that only qualified persons service the installation
(2) Where the fault clearing time requirements of the 133 percent level category cannot be met
(3) Where an orderly shutdown is essential to protect equipment and personnel
(4) There is adequate assurance that the faulted section will be de-energized in an orderly shutdown
Also, cables with this insulation thickness shall be permitted to be used in 100 or 133 percent insulation level applications where additional
insulation strength is desirable.
Submitter Information Verification
Submitter Full Name: CMP 6
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 11:31:02 EST 2015
Committee Statement
Committee Statement: Revision to Table 310.104(A) to include Thermoset XHHN and moisture-resistant Thermoset XHWN and XHWN-2.
Response Message:
Ballot Results
361 of 1802
This item has passed ballot
12 Eligible Voters
0 Not Returned
12 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Brush, Edwin F.
Friedman, Samuel B.
Huddleston, Jr., Robert L.
Kent, Gerald W.
Laidler, William F.
Picard, Paul R.
Riedl, Kenneth
Smith, Michael W.
Stacey, John
Wall, Carl Timothy
Xerri, Mario
Zimnoch, Joseph S.
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First Revision No. 2401-NFPA 70-2015 [ Section No. 312.1 ]
312.1 Scope.
This article covers the installation and construction specifications of cabinets, cutout boxes, and meter socket enclosures. It does not apply to
equipment operating at over 1000 volts, except as specifically referenced elsewhere in the Code .
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 09:14:43 EST 2015
Committee Statement
Committee Statement: It does not apply to equipment operating at over 1000 volts, except as specifically referenced elsewhere in the Code.
Response Message:
Public Input No. 4544-NFPA 70-2014 [Section No. 312.1]
Public Input No. 1238-NFPA 70-2014 [Section No. 312.1]
Ballot Results
362 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
8 Affirmative All
3 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hornberger, Barry N.
Humphrey, David G.
Miller, Kevin R.
Rupp, Bradford D.
Young, Ralph H.
Affirmative with Comment
Belisle, Rodney D.
For the benefit of members of the public reading these actions, the statement reported on this ballot is not the one voted by the panel. The correct
statement is as follows: CMP 9 concludes that the equipment addressed in Article 312 is not generally designed to exceed the voltage parameters in Article
408 and has applied comparable language from 408.1 to address this topic. CMP 9 recognizes that the Correlating Committee has jurisdiction over scope
provisions and recommends this revision accordingly.
Hartwell, Frederic P.
For the benefit of members of the public reading these actions, the statement reported on this ballot is not the one voted by the panel. The correct
statement is as follows: "CMP 9 concludes that the equipment addressed in Article 312 is not generally designed to exceed the voltage parameters in
Article 408 and has applied comparable language from 408.1 to address this topic. CMP 9 recognizes that the Correlating Committee has jurisdiction over
scope provisions and recommends this revision accordingly."
Osborne, Robert D.
For the benefit of members of the public reading these actions, the statement reported on this ballot is not the one voted by the panel. The correct
statement is as follows: “CMP 9 concludes that the equipment addressed in Article 312 is not generally designed to exceed the voltage parameters in
Article 408 and has applied comparable language from 408.1 to address this topic. CMP 9 recognizes that the Correlating Committee has jurisdiction over
scope provisions and recommends this revision accordingly.”
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First Revision No. 2403-NFPA 70-2015 [ Section No. 312.5(C) ]
(C) Cables.
Where cable is used, each cable shall be secured to the cabinet, cutout box, or meter socket enclosure.
Exception: Cables with entirely nonmetallic sheaths shall be permitted to enter the top of a surface-mounted enclosure through one or more
nonflexible raceways not less than 450 mm (18 in.) and not more than 3.0 m (10 ft) in length, provided all of the following conditions are met:
(a) Each cable is fastened within 300 mm (12 in.), measured along the sheath, of the outer end of the raceway.
(b) The raceway extends directly above the enclosure and does not penetrate a structural ceiling.
(c) A fitting is provided on each end of the raceway to protect the cable(s) from abrasion and the fittings remain accessible after installation.
(d) The raceway is sealed or plugged at the outer end using approved means so as to prevent access to the enclosure through the raceway.
(e) The cable sheath is continuous through the raceway and extends into the enclosure beyond the fitting not less than 6 mm (1⁄4 in.).
(f)
The raceway is fastened at its outer end and at other points in accordance with the applicable article.
(g) Where installed as conduit or tubing, the cable fill does not exceed the amount that would be permitted for complete conduit or tubing
systems by Table 1 of Chapter 9 of this Code and all applicable notes thereto. Chapter 9 , Table 1, Note 2 does not apply to this
condition.
Informational Note: See Table 1 in Chapter 9 , including Note 9, for allowable cable fill in circular raceways. See 310.15(B)(3) (a) for
required ampacity reductions for multiple cables installed in a common raceway.
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 17:02:16 EST 2015
Committee Statement
Committee
Statement:
CMP 9 concludes that further clarification of this provision will be useful. CMP 9 has editorially modified the language from that in the
input to avoid the somewhat circular phrasing “apply to this application.”
Response
Message:
Public Input No. 2576-NFPA 70-2014 [Section No. 312.5(C)]
Public Input No. 2575-NFPA 70-2014 [Section No. 312.5(C)]
Ballot Results
363 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hartwell, Frederic P.
Hornberger, Barry N.
Humphrey, David G.
Miller, Kevin R.
Osborne, Robert D.
Rupp, Bradford D.
Young, Ralph H.
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First Revision No. 2435-NFPA 70-2015 [ Section No. 312.6(A) ]
(A) Width of Wiring Gutters.
Conductors shall not be deflected within a cabinet or cutout box unless a gutter having a width in accordance with Table 312.6(A) is provided.
Conductors in parallel in accordance with 310.10(H) shall be judged on the basis of the number of conductors in parallel.
Table 312.6(A) Minimum Wire-Bending Space at Terminals and Minimum Width of Wiring Gutters
Wire Size (AWG or kcmil)
Wires per Terminal
2
3
4
5
mm in.
mm in.
mm in.
mm in.
Not
specified
—
—
—
—
—
—
—
—
6–4
38.1 11⁄2
—
—
—
—
—
—
—
—
2–1
50.8 2
—
—
—
—
—
—
—
—
2
1/0
63.5 21⁄2
—
—
—
—
—
—
—
—
1
2/0
76.2 3
—
—
—
—
—
—
—
—
1/0–2/0
3/0–4/0
88.9 31⁄2
127 5
178 7
—
—
—
—
3/0–4/0
250–300
102 4
152 6
203 8
—
—
—
—
250
350
114 41⁄2
152 6
203 8
254 10
—
—
300–350
400–500
127 5
203 8
254 10
305 12
—
—
400–500
600–750
152 6
203 8
254 10
305 12
356 14
600–700
800–1000
203 8
254 10
305 12
356 14
406 16
750–900
—
203 8
305 12
356 14
406 16
457 18
1000–1250
—
254 10
—
—
—
—
—
—
—
—
1500–2000
—
305 12
—
—
—
—
—
—
—
—
All other
conductors
Compact Stranded AA-8000 Aluminum Alloy Conductors
(see note 2)
14–10
12–8
8–6
4–3
1
mm
in.
Note: Bending space at terminals shall be measured in a straight line from the end of the lug or wire connector (in the direction that the wire
leaves the terminal) to the wall, barrier, or obstruction.
2. This column shall be permitted to be used to determine the required wire-bending space for compact stranded aluminum conductors in sizes
up to 1000 kcmil and manufactured using AA-8000 series electrical grade aluminum alloy conductor material in accordance with 310.106(B). The
minimum width of the wire gutter space shall be determined using the all other conductors value in this table.
Supplemental Information
File Name
Description
Panel_PI_312.6_A_Table.docx
For committee use
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 10:20:34 EST 2015
Committee Statement
Committee
Statement:
Revise the table per the attachment and add note 2. The column including aluminum conductors has been added to promote
consistency with Table 312.8 (B).
Response Message:
Ballot Results
364 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
8 Affirmative All
0 Affirmative with Comments
3 Negative with Comments
0 Abstention
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Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hornberger, Barry N.
Humphrey, David G.
Rupp, Bradford D.
Young, Ralph H.
Negative with Comment
Hartwell, Frederic P.
See MS Word file submitted separately.
Miller, Kevin R.
Submitters did not follow the PI process for addition of this information to table 312.16(A), and it is unclear how the values added were substantiated.
Osborne, Robert D.
The concept presented has merit, but lacks substantiation. It is recommended that a Fact Finding Report be submitted to support the revision to the table.
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First Revision No. 2404-NFPA 70-2015 [ Section No. 312.8 ]
312.8 Switch and Overcurrent Device Enclosures with Splices, Taps, and Feed-Through Conductors .
The wiring space within enclosures for switches and overcurrent devices shall be permitted for other wiring and equipment only as provided in
(A) and (B).
(A) Splices, Taps, and Feed-Through Conductors.
The wiring space of enclosures for switches or overcurrent devices shall be permitted for conductors feeding through, spliced, or tapping off to
other enclosures, switches, or overcurrent devices where all of the following conditions are met:
(1) The total of all conductors installed at any cross section of the wiring space does not exceed 40 percent of the cross-sectional area of that
space.
(2) The total area of all conductors, splices, taps, devices and taps equipment installed at any cross section of the wiring space does not
exceed 75 percent of the cross-sectional area of that space.
(3) A warning label complying with 110.21(B) is applied to the enclosure that identifies the closest disconnecting means for any feed-through
conductors.
(B) Devices and Equipment.
The wiring space of enclosures for switches or overcurrent devices shall be permitted for devices and equipment where all of the following
conditions are met:
(1) The device or equipment is identified as a field installable accessory as part of the listed equipment, or is a listed kit evaluated for field
installation in the specific equipment
(2) The total area of all conductors, splices, taps, devices, and equipment at any cross section of the wiring space does not exceed 75
percent of the cross-sectional area of that space.
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 17:05:48 EST 2015
Committee Statement
Committee CMP 9 is aware of a proliferation of devices and equipment intended to be installed in enclosures containing panelboards, but manufactured
Statement: by others. This is driven in part by interest in measuring, monitoring, and controlling circuits as part of load monitoring and energy
management. CMP 9 rejected a proposal for 2011 which would have allowed utilization equipment to be installed in the cabinet (reference
proposal 9-31) because these types of installations would result in obstructions within cabinets that could not be evaluated by qualified testing
laboratories. This revision provides guidance as to when the addition of devices and/or equipment may be acceptable. The text limits the
inclusion of devices and equipment in a wiring space to those that are identified as field installable accessories as part of the listed equipment,
or as a listed kit evaluated for field installation in the specific equipment. This wording retains the limit on the amount of space occupied by all
conductors, splices, taps, devices, and equipment to the same 75 percent fill requirement that is presently in 312.8(2). The wording also
includes parent text in the section heading for clarity.
Response
Message:
Public Input No. 3091-NFPA 70-2014 [Section No. 312.8]
Ballot Results
366 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hartwell, Frederic P.
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Hornberger, Barry N.
Humphrey, David G.
Miller, Kevin R.
Osborne, Robert D.
Rupp, Bradford D.
Young, Ralph H.
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First Revision No. 2405-NFPA 70-2015 [ Section No. 314.15 ]
314.15 Damp or Wet Locations.
In damp or wet locations, boxes, conduit bodies, outlet box hoods, and fittings shall be placed or equipped so as to prevent moisture from
entering or accumulating within the box, conduit body, or fitting. Boxes, conduit bodies, outlet box hoods, and fittings installed in wet locations
shall be listed for use in wet locations. Approved drainage openings not smaller than 3 mm ( 1⁄8 in.) and not larger than 6 mm (1⁄4 in.) in diameter
shall be permitted to be installed in the field in boxes or conduit bodies listed for use in damp or wet locations. For installation of listed drain
fittings, larger openings are permitted to be installed in the field in accordance with manufacturer’s instructions.
Informational Note No. 1: For boxes in floors, see 314.27(B) .
Informational Note No. 2: For protection against corrosion, see 300.6.
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 07:35:36 EST 2015
Committee Statement
Committee
Statement:
CMP 9 is adding specifications on the sizing and geometry of the “drainage” openings allowed in the current NEC text. Holes that are smaller
than 1/8 inch do not comply with applicable standards because they can easily be blocked over time, and a square hole would exceed the
intended maximum area. The code text does not specify acceptable enclosure types because there is nothing wrong with using a more robust
enclosure with field-supplied weep holes, installed for “drainage” purposes, if it is actually applied in a NEMA 3R environment. For example,
an enclosure additionally rated for a sleet exposure might still have a weep hole drilled on its underside. A NEMA 6P enclosure could not have
a weep hole drilled in the field because the hole would provide the opposite of drainage unless the actual application were not submerged.
Response
Message:
Public Input No. 2727-NFPA 70-2014 [Section No. 314.15]
Ballot Results
368 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hartwell, Frederic P.
Hornberger, Barry N.
Humphrey, David G.
Miller, Kevin R.
Osborne, Robert D.
Rupp, Bradford D.
Young, Ralph H.
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First Revision No. 2406-NFPA 70-2015 [ Section No. 314.16(A) ]
(A) Box Volume Calculations.
The volume of a wiring enclosure (box) shall be the total volume of the assembled sections and, where used, the space provided by plaster rings,
domed covers, extension rings, and so forth, that are marked with their volume or are made from boxes the dimensions of which are listed in
Table 314.16(A) . Where a box is provided with one or more securely installed barriers, the volume shall be apportioned to each of the resulting
3
3
3
3
spaces. Each barrier, if not marked with its volume, shall be considered to take up 8.2 cm ( 1⁄2 in ) if metal, and 16.4 cm (1.0 in ) if
nonmetallic.
(1) Standard Boxes.
The volumes of standard boxes that are not marked with their volume shall be as given in Table 314.16(A) .
(2) Other Boxes.
3
3
Boxes 1650 cm (100 in. ) or less, other than those described in Table 314.16(A) , and nonmetallic boxes shall be durably and legibly marked by
the manufacturer with their volume(s) . Boxes described in Table 314.16(A) that have a volume larger than is designated in the table shall be
permitted to have their volume marked as required by this section.
Table 314.16(A) Metal Boxes
Box Trade Size
mm
in.
1
Maximum Number of Conductors*
Minimum Volume
3
cm
in.
(arranged by AWG size)
3
18
16
14
12
10
8
6
100 × 32
(4 × 1 ⁄4)
round/octagonal
205
12.5
8
7
6
5
5
5
2
100 × 38
(4 × 11⁄2)
round/octagonal
254
15.5
10
8
7
6
6
5
3
100 × 54
(4 × 21⁄8)
round/octagonal
353
21.5
14
12
10
9
8
7
4
100 × 32
(4× 11⁄4)
square
295
18.0
12
10
9
8
7
6
3
100 × 38
(4 × 11⁄2)
square
344
21.0
14
12
10
9
8
7
4
100 × 54
(4 × 21⁄8)
square
497
30.3
20
17
15
13
12
10
6
120 × 32
(411⁄16 × 11⁄4)
square
418
25.5
17
14
12
11
10
8
5
120 × 38
(411⁄16 × 11⁄2)
square
484
29.5
19
16
14
13
11
9
5
120 × 54
(411⁄16 × 21⁄8)
square
689
42.0
28
24
21
18
16
14
8
75 × 50 × 38
(3 × 2 × 11⁄2)
device
123
7.5
5
4
3
3
3
2
1
75 × 50 × 50
(3 × 2 × 2)
device
164
10.0
6
5
5
4
4
3
2
75× 50 × 57
(3× 2 × 21⁄4)
device
172
10.5
7
6
5
4
4
3
2
75 × 50 × 65
(3 × 2 × 21⁄2)
device
205
12.5
8
7
6
5
5
4
2
75 × 50 × 70
(3 × 2 × 23⁄4)
device
230
14.0
9
8
7
6
5
4
2
75 × 50 × 90
(3 × 2 × 31⁄2)
device
295
18.0
12
10
9
8
7
6
3
100 × 54 × 38
(4 × 21⁄8 × 11⁄2)
device
169
10.3
6
5
5
4
4
3
2
100 × 54 × 48
(4 × 21⁄8 × 17⁄8)
device
213
13.0
8
7
6
5
5
4
2
100 × 54 × 54
(4 × 21⁄8 × 21⁄8)
device
238
14.5
9
8
7
6
5
4
2
95 × 50 × 65
(33⁄4 × 2 × 21⁄2)
masonry box/gang
230
14.0
9
8
7
6
5
4
2
95 × 50 × 90
(33⁄4 × 2 × 31⁄2)
masonry box/gang
344
21.0
14
12
10
9
8
7
4
min. 44.5 depth
FS — single cover/gang (13⁄4)
221
13.5
9
7
6
6
5
4
2
min. 60.3 depth
FD — single cover/gang (23⁄8)
295
18.0
12
10
9
8
7
6
3
min. 44.5 depth
FS — multiple cover/gang (13⁄4)
295
18.0
12
10
9
8
7
6
3
min. 60.3 depth
FD — multiple cover/gang (23⁄8)
395
24.0
16
13
12
10
9
8
4
*Where no volume allowances are required by 314.16(B)(2) through (B)(5).
(B) Box Fill Calculations.
The volumes in paragraphs 314.16(B)(1) through (B)(5), as applicable, shall be added together. No allowance shall be required for small fittings
such as locknuts and bushings. Each space within a box installed with a barrier shall be calculated separately.
(1) Conductor Fill.
Each conductor that originates outside the box and terminates or is spliced within the box shall be counted once, and each conductor that passes
through the box without splice or termination shall be counted once. Each loop or coil of unbroken conductor not less than twice the minimum
length required for free conductors in 300.14 shall be counted twice. The conductor fill shall be calculated using Table 314.16(B) . A conductor,
no part of which leaves the box, shall not be counted.
Exception: An equipment grounding conductor or conductors or not over four fixture wires smaller than 14 AWG, or both, shall be permitted to
be omitted from the calculations where they enter a box from a domed luminaire or similar canopy and terminate within that box.
(2) Clamp Fill.
Where one or more internal cable clamps, whether factory or field supplied, are present in the box, a single volume allowance in accordance with
Table 314.16(B) shall be made based on the largest conductor present in the box. No allowance shall be required for a cable connector with its
clamping mechanism outside the box.
A clamp assembly that incorporates a cable termination for the cable conductors shall be listed and marked for use with specific nonmetallic
boxes. Conductors that originate within the clamp assembly shall be included in conductor fill calculations covered in 314.16(B)(1) as though
they entered from outside the box. The clamp assembly shall not require a fill allowance, but the volume of the portion of the assembly that
remains within the box after installation shall be excluded from the box volume as marked in 314.16(A)(2) .
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(3) Support Fittings Fill.
Where one or more luminaire studs or hickeys are present in the box, a single volume allowance in accordance with Table 314.16(B) shall be
made for each type of fitting based on the largest conductor present in the box.
(4) Device or Equipment Fill.
For each yoke or strap containing one or more devices or equipment, a double volume allowance in accordance with Table 314.16(B) shall be
made for each yoke or strap based on the largest conductor connected to a device(s) or equipment supported by that yoke or strap. A device or
utilization equipment wider than a single 50 mm (2 in.) device box as described in Table 314.16(A) shall have double volume allowances
provided for each gang required for mounting.
Table 314.16(B) Volume Allowance Required per Conductor
Free Space Within Box for Each Conductor
Size of Conductor (AWG)
cm
3
in.
3
18
24.6
1.50
16
28.7
1.75
14
32.8
2.00
12
36.9
2.25
10
41.0
2.50
8
49.2
3.00
6
81.9
5.00
(5) Equipment Grounding Conductor Fill.
Where one or more equipment grounding conductors or equipment bonding jumpers enter a box, a single volume allowance in accordance with
Table 314.16(B) shall be made based on the largest equipment grounding conductor or equipment bonding jumper present in the box. Where an
additional set of equipment grounding conductors, as permitted by 250.146(D) , is present in the box, an additional volume allowance shall be
made based on the largest equipment grounding conductor in the additional set.
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 07:39:43 EST 2015
Committee Statement
Committee
Statement:
CMP 9 concludes that the text needs to better address volume calculation in boxes with internal barriers. Nonmetallic box barriers are
generally provided with volume markings, but steel barriers for metal boxes are not at present; the prescriptive text provided here allows for
an orderly transition, based on a simple volume calculation of 4 x 2 x 1/16 inches for steel, and double that for plastic.
This is a simple solution that avoids changes to the table. Device boxes are supplied as individual boxes and then ganged in the field; the
current text makes clear that wiring volumes after ganging are not to be applied box by box. At one time some handbooks described
allowable cable entries in terms of cables entering each component box instead as the total enclosed volume as intended; by placing the
word “gang” into the table this misinterpretation would likely reoccur.
The change in (2) proposed in the input, which would only apply to very large FS and FD boxes (five-gang and over FD boxes; six-gang and
over FS boxes) is adequately covered in the product standards and there is no evidence of a field problem. The volume of a subdivided floor
box would need to be determined by the manufacturer and checked as part of the listing process, and here again this should be addressable
in the product standard.
Response
Message:
Public Input No. 2692-NFPA 70-2014 [Section No. 314.16(A)]
Ballot Results
370 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
6 Affirmative All
5 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
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Brinkmeyer, Wayne
Hornberger, Barry N.
Rupp, Bradford D.
Affirmative with Comment
Hartwell, Frederic P.
See MS Word file submitted separately for the material formatted with legislative text. For the benefit of members of the public reading these actions, the
change creating a conditional plural for the word “volume(s)” in (A)(2) was not voted by CMP 9 and should be regarded as an erratum; no changes were
intended or voted to this paragraph and the word should remain “volume”. For the benefit of the members of the public reading these actions, the panel
action on this first revision to 314.16(B) was fully substantiated in accordance with 4.3.9.2.2 of the Regulations Governing the Development of NFPA
Standards. Although omitted from this ballot, the following statement was voted to support this revision: “The parent language in 314.16 requires box sizing
calculations to be made by comparing the interior volume of boxes with the required volume allowances specified for the contents of those boxes. The first
revision to 314.16(A) made by CMP 9 in response to Public Input 2692 addresses for the first time the procedure for calculating the volume of the interior
spaces of boxes divided by barriers installed in the field. This revision is a necessary complement to that action and clarifies that the required volume
allowances for divided boxes are to be applied as applicable on the basis of the contents of each subdivided section.”
Humphrey, David G.
Panel Statement should read as follows. The parent language in 314.16 requires box sizing calculations to be made by comparing the interior volume of
boxes with the required volume allowances specified for the contents of those boxes. The first revision to 314.16(A) made by CMP 9 in response to Public
Input 2692 addresses for the first time the procedure for calculating the volume of the interior spaces of boxes divided by barriers installed in the field. This
revision is a necessary complement to that action and clarifies that the required volume allowances for divided boxes are to be applied as applicable on the
basis of the contents of each subdivided section.”
Miller, Kevin R.
for the material formatted with legislative text.For the benefit of members of the public reading these actions, the change creating a conditional plural for
the word “volume(s)” in (A)(2) was not voted by CMP 9 and should be regarded as an erratum; no changes were intended or voted to this paragraph and
the word should remain “volume”. For the benefit of the members of the public reading these actions, the panel action on this first revision to 314.16(B) was
fully substantiated in accordance with 4.3.9.2.2 of the Regulations Governing the Development of NFPA Standards. Although omitted from this ballot, the
following statement was voted to support this revision: “The parent language in 314.16 requires box sizing calculations to be made by comparing the
interior volume of boxes with the required volume allowances specified for the contents of those boxes. The first revision to 314.16(A) made by CMP 9 in
response to Public Input 2692 addresses for the first time the procedure for calculating the volume of the interior spaces of boxes divided by barriers
installed in the field. This revision is a necessary complement to that action and clarifies that the required volume allowances for divided boxes are to be
applied as applicable on the basis of the contents of each subdivided section.”
Osborne, Robert D.
See MS Word file submitted separately for the material formatted with legislative text. For the benefit of members of the public reading these actions, the
change creating a conditional plural for the word “volume(s)” in (A)(2) was not voted by CMP 9 and should be regarded as an erratum; no changes were
intended or voted to this paragraph and the word should remain “volume”. For the benefit of the members of the public reading these actions, the panel
action on this first revision to 314.16(B) was fully substantiated in accordance with 4.3.9.2.2 of the Regulations Governing the Development of NFPA
Standards. Although omitted from this ballot, the following statement was voted to support this revision: “The parent language in 314.16 requires box sizing
calculations to be made by comparing the interior volume of boxes with the required volume allowances specified for the contents of those boxes. The first
revision to 314.16(A) made by CMP 9 in response to Public Input 2692 addresses for the first time the procedure for calculating the volume of the interior
spaces of boxes divided by barriers installed in the field. This revision is a necessary complement to that action and clarifies that the required volume
allowances for divided boxes are to be applied as applicable on the basis of the contents of each subdivided section.”
Young, Ralph H.
for the material formatted with legislative text. For the benefit of members of the public reading these actions, the change creating a conditional plural for
the word “volume(s)” in (A)(2) was not voted by CMP 9 and should be regarded as an erratum; no changes were intended or voted to this paragraph and
the word should remain “volume”. For the benefit of the members of the public reading these actions, the panel action on this first revision to 314.16(B) was
fully substantiated in accordance with 4.3.9.2.2 of the Regulations Governing the Development of NFPA Standards. Although omitted from this ballot, the
following statement was voted to support this revision: “The parent language in 314.16 requires box sizing calculations to be made by comparing the
interior volume of boxes with the required volume allowances specified for the contents of those boxes. The first revision to 314.16(A) made by CMP 9 in
response to Public Input 2692 addresses for the first time the procedure for calculating the volume of the interior spaces of boxes divided by barriers
installed in the field. This revision is a necessary complement to that action and clarifies that the required volume allowances for divided boxes are to be
applied as applicable on the basis of the contents of each subdivided section.”
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First Revision No. 2407-NFPA 70-2015 [ Section No. 314.17(B) ]
(B) Metal Boxes and Conduit Bodies.
Where metal boxes or conduit bodies are installed with messenger-supported wiring, open wiring on insulators, or concealed knob-and-tube
wiring, conductors shall enter through insulating bushings or, in dry locations, through flexible tubing extending from the last insulating support to
not less than 6 mm (1⁄4 in.) inside the box and beyond any cable clamps. Where nonmetallic-sheathed cable or multiconductor Type UF cable is
used, the sheath shall extend not less than 6 mm ( 1⁄4 in.) inside the box and beyond any cable clamp. Except as provided in 300.15(C) , the
wiring shall be firmly secured to the box or conduit body. Where raceway or cable is installed with metal boxes or conduit bodies, the raceway or
cable shall be secured to such boxes and conduit bodies.
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 07:46:37 EST 2015
Committee Statement
Committee
Statement:
The NEC does not presently provide a minimum cable sheath requirement for the metal boxes with cable clamps, as is addressed in
314.17(C) for nonmetallic boxes. This wording will provide a comparable requirement and assure that the cable clamp will not bear on
unprotected conductors.
Response
Message:
Public Input No. 1329-NFPA 70-2014 [Section No. 314.17(B)]
Public Input No. 1717-NFPA 70-2014 [Section No. 314.17(B)]
Ballot Results
372 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hartwell, Frederic P.
Hornberger, Barry N.
Humphrey, David G.
Miller, Kevin R.
Osborne, Robert D.
Rupp, Bradford D.
Young, Ralph H.
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First Revision No. 2408-NFPA 70-2015 [ Section No. 314.19 ]
314.19 Boxes Enclosing Flush Devices.
Boxes used to enclose flush devices shall be of such design that the devices will be completely enclosed on back and sides and substantial
support for the devices will be provided. Screws for supporting the box shall not also be used in attachment of the device contained therein to
attach a device .
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 07:49:11 EST 2015
Committee Statement
Committee Statement: This revision is editorial in nature and simplifies the wording of the requirement.
Response Message:
Public Input No. 3462-NFPA 70-2014 [Section No. 314.19]
Ballot Results
373 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hartwell, Frederic P.
Hornberger, Barry N.
Humphrey, David G.
Miller, Kevin R.
Osborne, Robert D.
Rupp, Bradford D.
Young, Ralph H.
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First Revision No. 2409-NFPA 70-2015 [ Section No. 314.20 ]
314.20 In Wall or Ceiling Flush-Mounted Installations .
In walls or ceilings with Flush-mounted installations within or behind a surface of concrete, tile, gypsum, plaster, or other noncombustible
material, including boxes employing a flush-type cover or faceplate, shall be installed made so that the front edge of the box, plaster ring,
extension ring, or listed extender will not be set back of the finished surface more than 6 mm (1⁄4 in.).
In walls and ceilings constructed For installations within a surface of wood or other combustible surface material, boxes, plaster rings, extension
rings, or listed extenders shall be flush with extend to the finished surface or project therefrom.
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 07:51:45 EST 2015
Committee Statement
Committee
Statement:
This change clarifies the language. It is about flush-mounted applications and should clearly apply to all such applications. The word
“flush” covers all intended applications of these rules.
Response
Message:
Public Input No. 700-NFPA 70-2014 [Section No. 314.20]
Ballot Results
374 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hartwell, Frederic P.
Hornberger, Barry N.
Humphrey, David G.
Miller, Kevin R.
Osborne, Robert D.
Rupp, Bradford D.
Young, Ralph H.
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First Revision No. 2410-NFPA 70-2015 [ Section No. 314.23(B)(1) ]
(1) Nails and Screws.
Nails and screws, where used as a fastening means, shall be attached secure boxes by using brackets on the outside of the enclosure, or
through holes provided by the enclosure manufacturer in the back or a single side of the enclosure, or by using mounting holes in the back or a
single side of the enclosure, or they shall pass through the interior within 6 mm (1⁄4 in.) of the back or ends of the enclosure. Screws shall not be
permitted to pass through the box unless exposed threads in the box are protected using approved means to avoid abrasion of conductor
insulation. Mounting holes made in the field shall be approved.
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 07:56:14 EST 2015
Committee Statement
Committee
Statement:
This revision assures that mounting holes will not be made in the field in the side of a box out of the control of the manufacturer. CMP 9
has formatted the new material as a single clause for clarity.
Response
Message:
Public Input No. 728-NFPA 70-2014 [Section No. 314.23(B)(1)]
Ballot Results
375 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
6 Affirmative All
5 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hornberger, Barry N.
Humphrey, David G.
Rupp, Bradford D.
Affirmative with Comment
Belisle, Rodney D.
The wording of this revision as presented on the ballot does not reflect the final action of CMP 9 on the revision. The Correlating Committee should act on
the basis that the correct wording of this paragraph as voted at the first revision meeting is as follows: (1) Nails and Screws. Nails and screws, where used
as a fastening means, shall be attached secure boxes by using brackets on the outside of the enclosure, or by using mounting holes in the back or a single
side of the enclosure, or they shall pass by passing through the interior within 6 mm (1/4 in.) of the back or ends of the enclosure. Screws shall not be
permitted to pass through the box unless exposed threads in the box are protected using approved means to avoid abrasion of conductor insulation.
Mounting holes made in the field shall be approved. For the benefit of members of the public reading these actions, the reported panel statement is as
reported by the task group but was modified at the meeting and is now completely incorrect. The actual statement voted at the meeting uses the following
text, which supports the text revisions shown above: This revision corrects the previous text that literally required only the nails and screws to be attached
instead of the box, and assures that mounting holes are indeed permitted in the back or sides of a box, correcting previous oversights. The new wording
also assures that if such holes are made in the field they are subject to the evaluation of the AHJ as to suitability. This is of particular importance in the case
of nonmetallic boxes, where such holes are generally discouraged by manufacturers. Mounting holes drilled in steel boxes are less critical but should still
be reviewable and the text in this revision provides for both.
Hartwell, Frederic P.
See MS Word file submitted separately for the material formatted with legislative text. The wording of this revision as presented on the ballot does not
reflect the final action of CMP 9 at the meeting. The Correlating Committee should act on the basis that the correct wording of this paragraph as voted at
the first revision meeting is as follows: "(1) Nails and Screws. Nails and screws, where used as a fastening means, shall secure boxes by using brackets on
the outside of the enclosure, or by using mounting holes in the back or a single side of the enclosure, or by passing through the interior within 6 mm (1/4
in.) of the back or ends of the enclosure. Screws shall not be permitted to pass through the box unless exposed threads in the box are protected using
approved means to avoid abrasion of conductor insulation. Mounting holes made in the field shall be approved." For the benefit of members of the public
reading these actions, the reported panel statement is as reported by the task group but was modified at the meeting and is now completely incorrect. The
actual statement voted at the meeting uses the following text, which supports the text revisions shown above: “This revision corrects the previous text that
4/22/2015 10:39 AM
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376 of 1802
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literally required only the nails and screws to be attached instead of the box, and assures that mounting holes are indeed permitted in the back or sides of a
box, correcting previous oversights. The new wording also assures that if such holes are made in the field they are subject to the evaluation of the AHJ as
to suitability. This is of particular importance in the case of nonmetallic boxes, where such holes are generally discouraged by manufacturers. Mounting
holes drilled in steel boxes are less critical but should still be reviewable and the text in this revision provides for both.”
Miller, Kevin R.
for the material formatted with legislative text. The wording of this revision as presented on the ballot does not reflect the final action of CMP 9 at the
meeting. The Correlating Committee should act on the basis that the correct wording of this paragraph as voted at the first revision meeting is as follows:
(1) Nails and Screws. Nails and screws, where used as a fastening means, shall secure boxes by using brackets on the outside of the enclosure, or by
using mounting holes in the back or a single side of the enclosure, or by passing through the interior within 6 mm (1/4 in.) of the back or ends of the
enclosure. Screws shall not be permitted to pass through the box unless exposed threads in the box are protected using approved means to avoid abrasion
of conductor insulation. Mounting holes made in the field shall be approved. For the benefit of members of the public reading these actions, the reported
panel statement is as reported by the task group but was modified at the meeting and is now completely incorrect. The actual statement voted at the
meeting uses the following text, which supports the text revisions shown above: “This revision corrects the previous text that literally required only the nails
and screws to be attached instead of the box, and assures that mounting holes are indeed permitted in the back or sides of a box, correcting previous
oversights. The new wording also assures that if such holes are made in the field they are subject to the evaluation of the AHJ as to suitability. This is of
particular importance in the case of nonmetallic boxes, where such holes are generally discouraged by manufacturers. Mounting holes drilled in steel boxes
are less critical but should still be reviewable and the text in this revision provides for both.”
Osborne, Robert D.
See MS Word file submitted separately for the material formatted with legislative text. The wording of this revision as presented on the ballot does not
reflect the final action of CMP 9 at the meeting. The Correlating Committee should act on the basis that the correct wording of this paragraph as voted at
the first revision meeting is as follows: (1) Nails and Screws. Nails and screws, where used as a fastening means, shall secure boxes by using brackets on
the outside of the enclosure, or by using mounting holes in the back or a single side of the enclosure, or by passing through the interior within 6 mm (1/4
in.) of the back or ends of the enclosure. Screws shall not be permitted to pass through the box unless exposed threads in the box are protected using
approved means to avoid abrasion of conductor insulation. Mounting holes made in the field shall be approved. For the benefit of members of the public
reading these actions, the reported panel statement is as reported by the task group but was modified at the meeting and is now completely incorrect. The
actual statement voted at the meeting uses the following text, which supports the text revisions shown above: “This revision corrects the previous text that
literally required only the nails and screws to be attached instead of the box, and assures that mounting holes are indeed permitted in the back or sides of a
box, correcting previous oversights. The new wording also assures that if such holes are made in the field they are subject to the evaluation of the AHJ as
to suitability. This is of particular importance in the case of nonmetallic boxes, where such holes are generally discouraged by manufacturers. Mounting
holes drilled in steel boxes are less critical but should still be reviewable and the text in this revision provides for both.”
Young, Ralph H.
for the material formatted with legislative text. The wording of this revision as presented on the ballot does not reflect the final action of CMP 9 at the
meeting. The Correlating Committee should act on the basis that the correct wording of this paragraph as voted at the first revision meeting is as follows:
(1) Nails and Screws. Nails and screws, where used as a fastening means, shall secure boxes by using brackets on the outside of the enclosure, or by
using mounting holes in the back or a single side of the enclosure, or by passing through the interior within 6 mm (1/4 in.) of the back or ends of the
enclosure. Screws shall not be permitted to pass through the box unless exposed threads in the box are protected using approved means to avoid abrasion
of conductor insulation. Mounting holes made in the field shall be approved. For the benefit of members of the public reading these actions, the reported
panel statement is as reported by the task group but was modified at the meeting and is now completely incorrect. The actual statement voted at the
meeting uses the following text, which supports the text revisions shown above: “This revision corrects the previous text that literally required only the nails
and screws to be attached instead of the box, and assures that mounting holes are indeed permitted in the back or sides of a box, correcting previous
oversights. The new wording also assures that if such holes are made in the field they are subject to the evaluation of the AHJ as to suitability. This is of
particular importance in the case of nonmetallic boxes, where such holes are generally discouraged by manufacturers. Mounting holes drilled in steel boxes
are less critical but should still be reviewable and the text in this revision provides for both.”
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First Revision No. 2411-NFPA 70-2015 [ Section No. 314.27 ]
314.27 Outlet Boxes.
(A) Boxes at Luminaire or Lampholder Outlets.
Outlet boxes or fittings and outlet boxes containing locking support and mounting receptacle used in combination with compatible attachment
fitting designed for the support of luminaires and lampholders, and installed as required by 314.23, shall be permitted to support a luminaire or
lampholder.
(1) Vertical Surface Outlets.
Boxes used at luminaire or lampholder outlets in or on a vertical surface shall be identified and marked on the interior of the box to indicate the
maximum weight of the luminaire that is permitted to be supported by the box if other than 23 kg (50 lb).
Exception: A vertically mounted luminaire or lampholder weighing not more than 3 kg (6 lb) shall be permitted to be supported on other boxes
or plaster rings that are secured to other boxes, provided that the luminaire or its supporting yoke, or the lampholder, is secured to the box with
no fewer than two No. 6 or larger screws.
(2) Ceiling Outlets.
At every outlet used exclusively for lighting, the box shall be designed or installed so that a luminaire or lampholder may be attached. Boxes shall
be required to support a luminaire weighing a minimum of 23 kg (50 lb). A luminaire that weighs more than 23 kg (50 lb) shall be supported
independently of the outlet box, unless the outlet box is listed and marked on the for not less than the weight to be supported. The interior of the
box shall be marked by the manufacturer to indicate the maximum weight the box shall be permitted to support.
(B) Floor Boxes.
Boxes listed specifically for this application shall be used for receptacles located in the floor.
Exception: Where the authority having jurisdiction judges them free from likely exposure to physical damage, moisture, and dirt, boxes located
in elevated floors of show windows and similar locations shall be permitted to be other than those listed for floor applications. Receptacles and
covers shall be listed as an assembly for this type of location.
(C) Boxes at Ceiling-Suspended (Paddle) Fan Outlets.
Outlet boxes or outlet box systems used as the sole support of a ceiling-suspended (paddle) fan shall be listed, shall be marked by their
manufacturer as suitable for this purpose, and shall not support ceiling-suspended (paddle) fans that weigh more than 32 kg (70 lb). For outlet
boxes or outlet box systems designed to support ceiling-suspended (paddle) fans that weigh more than 16 kg (35 lb), the required marking shall
include the maximum weight to be supported.
Outlet boxes containing listed locking support and mounting receptacle used in combination with compatible recognized attachment fitting
designed for the support of ceiling-suspended (paddle) fans, and installed as required by 314.23 , shall be permitted to support ceiling
suspended (paddle) fans.
Where spare, separately switched, ungrounded conductors are provided to a ceiling-mounted outlet box, in a location acceptable for a ceilingsuspended (paddle) fan in single- one- family, two-family, or multi-family multifamily dwellings, the outlet box or outlet box system shall be listed
for sole support of a ceiling-suspended (paddle) fan.
(D) Utilization Equipment.
Boxes used for the support of utilization equipment other than ceiling-suspended (paddle) fans shall meet the requirements of 314.27(A) for the
support of a luminaire that is the same size and weight.
Exception: Utilization equipment weighing not more than 3 kg (6 lb) shall be permitted to be supported on other boxes or plaster rings that are
secured to other boxes, provided the equipment or its supporting yoke is secured to the box with no fewer than two No. 6 or larger screws.
(E) Separable Attachment Fittings.
Outlet boxes shall be permitted to support listed locking support and mounting receptacles used in combination with compatible attachment
fittings designed for the support of equipment covered within and subject to all weight and orientation limits contemplated by the listing. Where
such fittings are used, the equipment mounted shall comply with 314.27(A) through (D) as applicable. Where the supporting receptacle is
installed within a box, it shall be included in the fill calculation covered in 314.16(B)(4) .
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 08:01:55 EST 2015
Committee Statement
377 of 1802
Committee
Statement:
CMP 9 is aware of a listed separable plug and receptacle assembly for fixed equipment mounted on outlet boxes. CMP 9 has rejected this
type of input in the past largely based on the belief that the subject belonged to either CMP 18 (for luminaires) or CMP 17 (for paddle fans
and other equipment). Refer to the proposed input 9-75 and the public comment 9-31 in the 2011 cycle, including the comments in the voting,
for more historical information on this topic.
There are certain essential aspects that do involve the use of boxes generally, necessitating a response in Article 314 at this time. This
revision covers the requirements, and does so in a straightforward, stand-alone subsection that does not editorially complicate the general
requirements for luminaire outlets in (A) or those for paddle fans in (C), or even those for other equipment in (D) for which this technology
might easily be adapted.
In (C), This revision addresses the minimum supported weight issue in a simpler way, and without removing the 50 lb default weight
requirement. That recommendation (in PI 4482) would be a step backwards in terms of safety. Luminaires are often changed but most weigh
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less than 50 lbs. This limit preserves an essential safety parameter because the internal markings are not always read and applied by
qualified persons. Luminaires above this weight are more likely to involve qualified personnel. The default limit was specifically placed in the
code by virtue of Proposal 9-56 in the 2011 cycle.
Response
Message:
Public Input No. 4482-NFPA 70-2014 [Section No. 314.27(A)(2)]
Public Input No. 4665-NFPA 70-2014 [Section No. 314.27]
Public Input No. 573-NFPA 70-2014 [Section No. 314.27(A)(2)]
Public Input No. 348-NFPA 70-2014 [Section No. 314.27(C)]
Public Input No. 4443-NFPA 70-2014 [Section No. 314.27]
Ballot Results
378 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
7 Affirmative All
3 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Humphrey, David G.
Miller, Kevin R.
Rupp, Bradford D.
Young, Ralph H.
Affirmative with Comment
Belisle, Rodney D.
The underlined text in both the parent language of 314.27(A) and the supposed second paragraph of 314.27(C) as presented on the ballot, which was
suggested by PIs #4443 & 4665, was never voted by CMP 9 and the Correlating Committee should act on the basis that those revisions are not supposed
to appear in the first draft. Such action will agree with the panel statement, which is correct and that explains why no such changes were being made due to
the additional subsection (E) For the benefit of members of the public reading these actions, the third paragraph of the panel statement must begin "In
(A)(2), this revision ..." for obvious reasons. In addition, there was additional text voted by CMP 9 to support the revision (see PI #348) to the second
paragraph of (C). In this report, it should have been formatted as a concluding sentence, worded as follows: “With respect to the change from "singlefamily" to "one-family" in the second paragraph of (C), CMP 9 is matching the literal text with the defined terms in Article 100.”
Hartwell, Frederic P.
The underlined text in both the parent language of 314.27(A) and the supposed second paragraph of 314.27(C) as presented on the ballot, which was
suggested by PIs #4443 & 4665, was never voted by CMP 9 and the Correlating Committee should act on the basis that those revisions are not supposed
to appear in the first draft. Such action will agree with the panel statement, which is correct and explains why no such changes were being made due to the
additional subsection (E). For the benefit of members of the public reading these actions, the third paragraph of the panel statement must begin "In (A)(2),
this revision ..." for obvious reasons. In addition, there was additional text voted by CMP 9 to support the revision (see PI #348) to the second paragraph of
(C). In this report, it should have been formatted as a concluding sentence, worded as follows: “With respect to the change from "single-family" to
"one-family" in the second paragraph of (C), CMP 9 is matching the literal text with the defined terms in Article 100.”
Osborne, Robert D.
The underlined text in both the parent language of 314.27(A) and the supposed second paragraph of 314.27(C) as presented on the ballot, which was
suggested by PIs #4443 & 4665, was never voted by CMP 9 and the Correlating Committee should act on the basis that those revisions are not supposed
to appear in the first draft. Such action will agree with the panel statement, which is correct and that explains why no such changes were being made due to
the additional subsection (E). For the benefit of members of the public reading these actions, the third paragraph of the panel statement must begin "In
(A)(2), this revision ..." for obvious reasons. In addition, there was additional text voted by CMP 9 to support the revision (see PI #348) to the second
paragraph of (C). In this report, it should have been formatted as a concluding sentence, worded as follows: “With respect to the change from "singlefamily" to "one-family" in the second paragraph of (C), CMP 9 is matching the literal text with the defined terms in Article 100.”
Negative with Comment
Hornberger, Barry N.
The underlined text in both the parent language of 314.27(A) and the supposed second paragraph of 314.27(C) as presented on the ballot, which was
suggested by PIs #4443 & 4665, was never voted by CMP 9 and the Correlating Committee should act on the basis that those revisions are not supposed
to appear in the first draft. Such action will agree with the panel statement, which is correct and that explains why no such changes were being made due to
the additional subsection (E). For the benefit of members of the public reading these actions, the third paragraph of the panel statement must begin "In
(A)(2), this revision ..." for obvious reasons. In addition, there was additional text voted by CMP 9 to support the revision (see PI #348) to the second
paragraph of (C). In this report, it should have been formatted as a concluding sentence, worded as follows: “With respect to the change from "singlefamily" to "one-family" in the second paragraph of (C), CMP 9 is matching the literal text with the defined terms in Article 100.”
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First Revision No. 2412-NFPA 70-2015 [ Section No. 314.28(A)(3) ]
(3) Smaller Dimensions.
Listed boxes or listed conduit bodies of dimensions less than those required in 314.28(A)(1) and (A)(2) shall be permitted for installations of
combinations of conductors that are less than the maximum conduit or tubing fill (of conduits or tubing being used) permitted by Table 1 of
Chapter 9 .
Listed conduit bodies of dimensions less than those required in 314.28(A)(2) , and having a radius of the curve to the centerline not less than that
indicated in Table 2 of Chapter 9 for one-shot and full-shoe benders, shall be permitted for installations of combinations of conductors permitted
by Table 1 of Chapter 9 . These conduit bodies shall be marked to show they have been specifically evaluated in accordance with this provision.
Where the permitted combinations of conductors for which the box or conduit body has been listed are less than the maximum conduit or tubing
fill permitted by Table 1 of Chapter 9, the box or conduit body shall be permanently marked with the maximum number and maximum size of
conductors permitted. For other conductor sizes and combinations, the total cross-sectional area of the fill shall not exceed the cross-section
area of the conductors specified in the marking, based on the type of conductor identified as part of the product listing.
Informational Note: Unless otherwise specified, the applicable product standards evaluate the fill markings covered here based on
conductors with Type XHHW insulation.
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 08:19:01 EST 2015
Committee Statement
Committee The way current conduit bodies are marked for reduced fill follows for certain requirements in UL 514B. The pull test in 8.4 is applied to three
Statement: XHHW conductors, and the reduced size allowances and markings are covered in 5.7.1.4-5 and in 7.10.4, without modifying 8.4. Therefore,
under current listing protocols, there is a generic permission to use smaller dimensions and mark accordingly, but the tests only address three
conductors of the prescribed insulation. At one time, the customary markings gave the reduced size formatted more clearly as a maximum
overall fill, and the customary (and correct) enforcement posture was to take the cross-sectional area of the three conductors identified in the
marking and compare that number to the proposed fill, based on number and insulation thickness, but the current requirements and markings
result in an extreme lack of clarity.
Make no mistake about it, only a miniscule number of conduit bodies meet the default six or eight times rule; the overwhelming number of
conduit bodies are being evaluated under this reduced fill permission. Forcing changes in molds for conduit bodies, together with the likely file
review that would go with that process, would be an enormous cost burden at this point. The solution is to change the guide card to state that
the pull tests were done with XHHW insulation and that the fill must not exceed that cross-sectional area. This should not provoke a file review
and it could be accomplished comparatively quickly.
CMP 9 is now aware of a NEMA publication (FB 2.10-2013) that covers this topic in a comparable way with similar results, however, that
publication relates proposed cross-sectional fill area to the allowable fill of a specified raceway size as expressed in a separate table (A-2).
The percentage numbers in that table are derived from dividing the areas from NEC Table 5 for three XHHW wires (the number in the typical
fill marking) by the area from NEC Table 4 for RMC, and comparing that percentage with the percent conduit fill.
The procedure in this input would seldom result in an actual fill difference, but it is superior because it does not rely on a table outside the
boundaries of the NEC, and because it confines the calculations to the conduit body. This is important because the conduit body does not
know what species of raceway it will be connected to, and might easily be connected to two different raceways simultaneously, such as IMC
and RMC.
For the sake of completeness, CMP 9 is aware that UL 514B does specify the use of THHN for the tests on ¾ and ½ trade sizes of conduit
bodies, however, the NEC need not address that complication because 318.28 only applies to 4 AWG and larger wires. No one is going to try
to pull 4 AWG wires into such small conduit bodies. The standard also recognizes XLPE in lieu of XHHW, but the two types are functionally
identical and the only version recognized in Table 310.104(A) is XHHW.
Response
Message:
Public Input No. 3347-NFPA 70-2014 [Section No. 314.28(A)(3)]
Public Input No. 1458-NFPA 70-2014 [Section No. 314.28(A)(3)]
Ballot Results
379 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
10 Affirmative All
1 Affirmative with Comments
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0 Negative with Comments
0 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hartwell, Frederic P.
Hornberger, Barry N.
Humphrey, David G.
Miller, Kevin R.
Rupp, Bradford D.
Young, Ralph H.
Affirmative with Comment
Osborne, Robert D.
Agree with First Revision. The Committee Statement was never finalized during the meeting and is not reflective of the Committee's official comments
regarding the Revision.
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First Revision No. 2413-NFPA 70-2015 [ Section No. 314.28(E)(1) ]
(1) Installation.
Power distribution blocks installed in boxes shall be listed and labeled . Power distribution blocks installed on the line side of the service
equipment shall be listed for the purpose and marked accordingly.
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 08:22:14 EST 2015
Committee Statement
Committee
Statement:
This revision incorporates the listing requirement for line-side-of-service blocks first imposed by CMP 8 in 376.56(B)(1) in the 2014 cycle
together with a labeling requirement. This wording also adds a marking requirement so the suitability for use ahead of service equipment
will be obvious to both installer and inspector. The label identifies the testing laboratory action, and the marking identifies the function.
Response
Message:
Public Input No. 884-NFPA 70-2014 [Section No. 314.28(E)(1)]
Public Input No. 852-NFPA 70-2014 [Section No. 314.28(E)(1)]
Ballot Results
381 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
10 Affirmative All
0 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hartwell, Frederic P.
Hornberger, Barry N.
Humphrey, David G.
Osborne, Robert D.
Rupp, Bradford D.
Young, Ralph H.
Negative with Comment
Miller, Kevin R.
Oppose this due to the addition of "...and labeled" to the first sentence. A requirement that all listed equipment be labeled with the listing organization’s
mark of conformity conflicts with the definition of Listed in Article 100, including the Informational Note saying, “Use of the system employed by the listing
organization allows the authority having jurisdiction to identify a listed product.” The definition is not only the NEC definition of Listed, it is an Official NFPA
Definition, including the Informational Note (or an Appendix note in many NFPA standards). It is not for CMP 9 to decide to override an official definition. In
addition, it is inappropriate for the NEC Committee to dictate certification practices to listing organizations. By requiring that listed equipment display the
listing organization’s mark, CMP___ would be dictating the business practices of the various listing organizations without a clear statement of need, against
the advice contained in the Informational Note to the definition.
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First Revision No. 2414-NFPA 70-2015 [ Section No. 314.70(B) ]
(B) Conduit Bodies.
Where conduit bodies are used on systems over 1000 volts, the installation shall comply with the provisions of Part IV and with the following
general provisions of this article:
(1) Part I, 314.4
(2) Part II, 314.15 ; 314.17 ; 314.23(A) , (E), or (G); 314.28(A)(3) ; and 314.29
(3) Part III, 314.40(A) ; and 314.41
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 08:29:05 EST 2015
Committee Statement
Committee
Statement:
CMP 9 is making this revision because no provision in this section makes the new wording in 314.28(A)(3) dating from the 2014 edition
effective for medium voltage applications. Conduit bodies that perform the function of an LB while only imposing the radius of a conventional
sweep, or that have been listed to a particular conductor fill, are not presently a potential solution and should be. This action will open the
door to future standards activity in this area.
Response
Message:
Ballot Results
382 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Belisle, Rodney D.
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Hartwell, Frederic P.
Hornberger, Barry N.
Humphrey, David G.
Miller, Kevin R.
Osborne, Robert D.
Rupp, Bradford D.
Young, Ralph H.
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First Revision No. 2415-NFPA 70-2015 [ Section No. 314.71 [Excluding any Sub-Sections] ]
Pull and junction boxes and handhole enclosures shall provide approved space and dimensions for the installation of conductors, and they shall
comply with the specific requirements of this section. Conduit bodies shall be permitted if they meet the dimensional requirements for boxes.
Exception: Terminal housings supplied with motors shall comply with the provisions of 430.12 .
Submitter Information Verification
Submitter Full Name: CMP 9
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Wed Jan 21 08:33:10 EST 2015
Committee Statement
Committee
Statement:
This exception only applies to 600 volts and This exception is not appropriate for medium voltage applications. The Correlating Committee
should send this public input to CMP 11 for information, where it should be reviewed for possible action in Part XI of Article 430. less. This
exception makes no sense here. The panel has to look at 430.12.
Response
Message:
Public Input No. 1243-NFPA 70-2014 [Section No. 314.71 [Excluding any Sub-Sections]]
Public Input No. 4551-NFPA 70-2014 [Section No. 314.71 [Excluding any Sub-Sections]]
Ballot Results
383 of 1802
This item has passed ballot
11 Eligible Voters
0 Not Returned
7 Affirmative All
4 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Breen, Kevin J.
Breitkreutz, Billy
Brinkmeyer, Wayne
Humphrey, David G.
Miller, Kevin R.
Rupp, Bradford D.
Young, Ralph H.
Affirmative with Comment
Belisle, Rodney D.
For the benefit of members of the public reading these actions, the first eight words and the last sentence of this statement were in the substantiation for
the original public inputs but were not voted by CMP 9 and should not have appeared on the ballot. The actual statement reads as follows: This exception
is not appropriate for medium voltage applications. The Correlating Committee should send this public input to CMP 11 for information, where it should be
reviewed for possible action in Part XI of Article 430.
Hartwell, Frederic P.
For the benefit of members of the public reading these actions, the first eight words and the last sentence of this statement were in the substantiation for
the original public inputs but were not voted by CMP 9 and should not have appeared on the ballot. The actual statement reads as follows: "This exception
is not appropriate for medium voltage applications. The Correlating Committee should send this public input to CMP 11 for information, where it should be
reviewed for possible action in Part XI of Article 430."
Hornberger, Barry N.
The first eight words and the last sentence of the Panel Statement were in the substantiation of the original public inputs but were not voted by CMP 9 and
should not have appeared on the ballot. The actual Panel Statement reads as follows: “This exception is not appropriate for medium voltage applications.
The Correlating Committee should send this public input to CMP 11 for information, where it should be reviewed for possible action in Part XI of Article
430.”
Osborne, Robert D.
For the benefit of members of the public reading these actions, the first eight words and the last sentence of this statement were in the substantiation for
the original public inputs but were not voted by CMP 9 and should not have appeared on the ballot. The actual statement reads as follows: “This exception
is not appropriate for medium voltage applications. The Correlating Committee should send this public input to CMP 11 for information, where it should be
reviewed for possible action in Part XI of Article 430.”
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First Revision No. 1808-NFPA 70-2015 [ New Definition after Definition: Armored Cable, Type AC. ]
320.6 Listing Requirements.
Type AC cable and associated fittings shall be listed and labeled.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 11:01:52 EST 2015
Committee Statement
Committee
Statement:
Listing is based on compliance with recognized product standards. Non listed cables and associated fittings may not have been
evaluated for compliance with such requirements, and in some cases lack of such compliance may make it difficult to determine
acceptance in the field.
The addition of the words “and labeled” will insure that the AHJ has clear evidence that the wiring method and fittings are listed by an
acceptable product evaluation organization.
Response
Message:
Public Input No. 1332-NFPA 70-2014 [New Definition after Definition: Armored Cable, Type AC.]
Ballot Results
384 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1807-NFPA 70-2015 [ Section No. 320.10 ]
320.10 Uses Permitted.
Type AC cable shall be permitted as follows:
(1) For feeders and branch circuits in both exposed and concealed installations
(2) For life safety and critical branch circuits of the essential electrical systems in health care facilities where permitted by 517.31(C)(3)(1) and
517.31(C)(3)(3)
(3) In cable trays
(4) In dry locations
(5) Embedded in plaster finish on brick or other masonry, except in damp or wet locations
(6) To be run or fished in the air voids of masonry block or tile walls where such walls are not exposed or subject to excessive moisture or
dampness
Informational Note: The “Uses Permitted” is not an all-inclusive list.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 10:40:24 EST 2015
Committee Statement
Committee
Statement:
Type AC Cable provides mechanical protection by means of the metallic covering over the insulated conductors. CMP-7 requests that
CMP-15 reviews and comments on this input and to the correlating committee for review.
Response
Message:
Public Input No. 2259-NFPA 70-2014 [Section No. 320.10]
Ballot Results
385 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
Affirmative with Comment
Hunter, Christel K.
Since Panel 15 did not accept similar language, including this language in Articles 320 and 330 could create confusion in the industry. We look forward to
input in the comment phase.
Negative with Comment
Nielsen, Dennis A.
IEEE statement opposing the First Revision:FR1807 The inclusion of For life safety and critical branch circuits of the essential electrical systems in health
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care facilities where permitted by 517.30(C)(3)(1) and 517.30(C)(3)(3) in the uses permitted section is not typical. There was already an “Information Note:
The “Uses Permitted” is not an all-inclusive list.” and this inclusion does not provide additional technical use in application for the installation just more
specific as to location(s). Article 517 is specific to Health Care Facilities and should list the type of cable for the system specified per CMP15 jurisdiction.
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First Revision No. 1809-NFPA 70-2015 [ Section No. 320.30(A) ]
(A) General.
Type AC cable shall be supported and secured by staples, listed cable ties identified as Type 2S or Type 21S , straps, hangers, or similar
fittings, or other approved means designed and installed so as not to damage the cable.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 11:05:17 EST 2015
Committee Statement
Committee
Statement:
Listing of cable ties approved for support of flexible conduits and cables is appropriate as the standard requires markings that identify critical
performance ranges that can impact their suitability for use, including minimum and maximum operating temperature and resistance to
ultraviolet light for outdoor installations. The proposed new requirements will provide for objective determination for suitability of cable ties for
this use. Adding ”or other approved means” harmonizes with the current language in 330.30(A).
Response
Message:
Public Input No. 1718-NFPA 70-2014 [Section No. 320.30(A)]
Public Input No. 2006-NFPA 70-2014 [Section No. 320.30(A)]
Ballot Results
387 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1810-NFPA 70-2015 [ Section No. 320.30(B) ]
(B) Securing.
Unless otherwise permitted, Type AC cable shall be secured within 300 mm (12 in.) of every outlet box, junction box, cabinet, or fitting and at
intervals not exceeding 1.4 m (41⁄2 ft) where installed on or across framing members .
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 11:07:18 EST 2015
Committee Statement
Committee Statement: The last seven words in the sentence are removed since they do not provide clarity.
Response Message:
Public Input No. 4813-NFPA 70-2014 [Section No. 320.30(B)]
Ballot Results
388 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1811-NFPA 70-2015 [ Section No. 320.30(C) ]
(C) Supporting.
Unless otherwise permitted, Type AC cable shall be supported at intervals not exceeding 1.4 m (41⁄2 ft).
Horizontal runs of Type AC cable installed in wooden or metal framing members or similar supporting means shall be considered supported
where such support does not exceed 1.4-m 1.4 m (4 1⁄2-ft 4 1⁄2 ft ) intervals.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 11:10:03 EST 2015
Committee Statement
Committee Statement: The hyphen between the measurements at the end of 320.30(C) are deleted to be consistent with the style manual.
Response Message:
Public Input No. 4817-NFPA 70-2014 [Section No. 320.30(C)]
Ballot Results
389 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
4/22/2015 10:39 AM
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First Revision No. 1812-NFPA 70-2015 [ Section No. 320.30(D) ]
(D) Unsupported Cables.
Type AC cable shall be permitted to be unsupported and unsecured where the cable complies with any of the following:
(1) Is fished between access points through concealed spaces in finished buildings or structures and supporting is impracticable
(2) Is not more than 600 mm (2 ft) in length at terminals where flexibility is necessary
(3) Is not more than 1.8 m (6 ft) in length from the last point of cable support to the point of connection to a luminaire(s) or other electrical
equipment and the cable and point of connection are within an accessible ceiling.
For the purposes of this section, Type AC cable fittings shall be permitted as a means of cable support.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 11:13:59 EST 2015
Committee Statement
Committee Statement: The wording was changed to make it clear that neither support nor securement is required for these applications.
Response Message:
Public Input No. 110-NFPA 70-2014 [Section No. 320.30(D)]
Ballot Results
390 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1801-NFPA 70-2015 [ New Definition after Definition: Flat Cable Assembly, Type ... ]
322.6 Listing Requirements.
Type FC and associated fittings shall be listed and labeled.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 09:02:04 EST 2015
Committee Statement
Committee
Statement:
Listing is based on compliance with recognized product standards. Non listed cables and associated fittings may not have been
evaluated for compliance with such requirements, and in some cases lack of such compliance may make it difficult to determine
acceptance in the field.
The addition of the words “and labeled” will insure that the AHJ has clear evidence that the wiring method and fittings are listed by an
acceptable product evaluation organization.
Response
Message:
Public Input No. 1334-NFPA 70-2014 [New Definition after Definition: Flat Cable Assembly, Type ...]
Ballot Results
391 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
4/22/2015 10:39 AM
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First Revision No. 1804-NFPA 70-2015 [ Section No. 324.6 ]
324.6 Listing Requirements.
Type FCC cable and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 09:54:01 EST 2015
Committee Statement
Committee
Statement:
Listing is based on compliance with recognized product standards. Non listed cables and associated fittings may not have been
evaluated for compliance with such requirements, and in some cases lack of such compliance may make it difficult to determine
acceptance in the field.
The addition of the words “and labeled” will insure that the AHJ has clear evidence that the wiring method and fittings are listed by an
acceptable product evaluation organization.
Response
Message:
Public Input No. 885-NFPA 70-2014 [Section No. 324.6]
Ballot Results
392 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
4/22/2015 10:39 AM
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First Revision No. 1805-NFPA 70-2015 [ Section No. 326.24 ]
326.24 Bending Radius.
Where the coilable nonmetallic conduit and cable is are bent for installation purposes or is are flexed or bent during shipment or installation, the
radii of bends radius of the curve of the inner edge measured to the inside of the bend shall not be less than specified in Table 326.24 .
Table 326.24 Minimum Radii of Bends
Conduit Size
Metric Designator
Minimum Radii
Trade Size
mm
in.
53
2
600
24
78
3
900
35
103
4
1150
45
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 10:17:45 EST 2015
Committee Statement
Committee
Statement:
Edits are consistent with singular form as noted in the statement of problem and representative of other article(s), for example
330.24.
Response Message:
Public Input No. 4820-NFPA 70-2014 [Section No. 326.24]
Ballot Results
393 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1814-NFPA 70-2015 [ New Definition after Definition: Medium Voltage Cable, Type... ]
328.6 Listing Requirements.
Type MV cables and associated fittings shall be listed and labeled.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 11:22:16 EST 2015
Committee Statement
Committee
Statement:
Listing is based on compliance with recognized product standards. Non listed cables and associated fittings may not have been
evaluated for compliance with such requirements, and in some cases lack of such compliance may make it difficult to determine
acceptance in the field.
The addition of the words “and labeled” will insure that the AHJ has clear evidence that the wiring method and fittings are listed by an
acceptable product evaluation organization.
Response
Message:
Public Input No. 1336-NFPA 70-2014 [New Definition after Definition: Medium Voltage Cable, Type...]
Ballot Results
394 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
4/22/2015 10:39 AM
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First Revision No. 1815-NFPA 70-2015 [ New Section after 328.14 ]
328.30 Support.
Type MV cable terminated in equipment, installed in pull boxes, or in vaults shall be secured and supported by metallic or nonmetallic supports
suitable to withstand the weight, by listed cable ties or other approved means, at intervals not exceeding 1.5 m (5 ft) from terminations or a
maximum of 1.8 m (6 ft) between supports.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 11:24:05 EST 2015
Committee Statement
Committee
Statement:
New text provides guidance to installers, and code enforcement personnel, to better assure proper cable support for a safe, neat and
workmanlike installation.
Response Message:
Public Input No. 3921-NFPA 70-2014 [New Section after 328.14]
Ballot Results
395 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Affirmative with Comment
Williams, David A.
The panel may want to consider similar changes made to other articles in the .30 section regarding listed cable ties to add "identified as Type 2S or Type
21S". If a cable tie is used for support it should be listed for that purpose.
4/22/2015 10:39 AM
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First Revision No. 1819-NFPA 70-2015 [ Section No. 328.14 ]
328.14 Installation.
Type MV cable shall be installed, terminated, and tested by qualified persons.
Informational Note: Information about accepted industry practices and installation procedures for medium-voltage cable are described in
ANSI/NECA/NCSCB 600-2014, Standard for Installing and Maintaining Medium-Voltage Cable and in IEEE 576-2000, Recommended
Practice for Installation, Termination, and Testing of Insulated Power Cables as Used in Industrial and Commercial Applications, includes
installation information and testing criteria for MV cable .
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 13:32:31 EST 2015
Committee Statement
Committee
Statement:
The addition of NECA 600 to the informational note in 328.14, rather than 328.1, provides users with valuable information to assist in
these types of installations.
Response Message:
Public Input No. 2413-NFPA 70-2014 [Section No. 328.1]
Ballot Results
396 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
4/22/2015 10:39 AM
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First Revision No. 1816-NFPA 70-2015 [ New Definition after Definition: Metal Clad Cable, Type MC. ]
330.6 Listing Requirements.
Type MC cable shall be listed and labeled. Fittings used for connecting Type MC cable to boxes, cabinets, or other equipment shall be listed,
labeled, and identified for such use.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 11:26:59 EST 2015
Committee Statement
Committee
Statement:
Listing is based on compliance with recognized product standards. Non listed cables may not have been evaluated for compliance with
such requirements, and in some cases lack of such compliance may make it difficult to determine acceptance in the field.
The addition of the words “labeled and identified” will insure that the AHJ has clear evidence that the wiring method and fittings are listed
by an acceptable product evaluation organization.
Response
Message:
Public Input No. 1337-NFPA 70-2014 [New Definition after Definition: Metal Clad Cable, Type MC.]
Ballot Results
397 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
4/22/2015 10:39 AM
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First Revision No. 1818-NFPA 70-2015 [ Section No. 330.10(A) ]
(A) General Uses.
Type MC cable shall be permitted as follows:
(1) For services, feeders, and branch circuits.
(2) For power, lighting, control, and signal circuits.
(3) Indoors or outdoors.
(4) Exposed or concealed.
(5) To be direct buried where identified for such use.
(6) In cable tray where identified for such use.
(7) In any raceway.
(8) As aerial cable on a messenger.
(9) In hazardous (classified) locations where specifically permitted by other articles in this Code.
(10) For life safety and critical branch circuits of the essential electrical systems in health care facilities where permitted by 517.31(C)(3)(1) and
517.31(C)(3)(3) .
(11) In dry locations and embedded in plaster finish on brick or other masonry except in damp or wet locations.
(12) In wet locations where a corrosion-resistant jacket is provided over the metallic covering and any of the following conditions are met:
a.
The metallic covering is impervious to moisture.
b.
A jacket resistant to moisture is provided under the metal covering.
c.
The insulated conductors under the metallic covering are listed for use in wet locations.
(13) Where single-conductor cables are used, all phase conductors and, where used, the grounded conductor shall be grouped together to
minimize induced voltage on the sheath.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 11:42:13 EST 2015
Committee Statement
Committee
Statement:
Type MC Cable provides mechanical protection by means of the metallic covering over the insulated conductors. Type MC cable that
provides crush, impact, and penetration circuit protection performance comparable to electrical metallic tubing would also be permitted for
this application. CMP-7 requests that CMP-15 reviews and comments on this input and to the correlating committee for review.
Response
Message:
Public Input No. 2258-NFPA 70-2014 [Section No. 330.10(A)]
Public Input No. 1403-NFPA 70-2014 [New Section after 330.10(B)(4)]
Ballot Results
398 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
10 Affirmative All
2 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
4/22/2015 10:39 AM
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399 of 1802
http://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPara...
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Williams, David A.
Affirmative with Comment
Hunter, Christel K.
Since Panel 15 did not accept similar language, including this language in Articles 320 and 330 could create confusion in the industry. We look forward to
input in the comment phase.
Wheeler, Wesley L.
I agree with this FR and feel that the decision to use this cable in health care facilities will be based on product standards meeting the raceway
requirements found in NFPA 99 and correlated with CMP-15.
Negative with Comment
Nielsen, Dennis A.
IEEE statement opposing the First Revision:FR1818 The inclusion of For life safety and critical branch circuits of the essential electrical systems in health
care facilities where permitted by 517.30(C)(3)(1) and 517.30(C)(3)(3) in the uses permitted section is not typical. There is an “Information Note: The “Uses
Permitted” is not an all-inclusive list.” and this inclusion does not provide additional technical use in application for the installation just more specific as to
location(s). Article 517 is specific to Health Care Facilities and should list the type of cable for the system specified per CMP15 jurisdiction.
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First Revision No. 1820-NFPA 70-2015 [ New Section after 330.12 ]
330.15 Exposed Work.
Exposed runs of cable, except as provided in 300.11(A) , shall closely follow the surface of the building finish or of running boards. Exposed
runs shall also be permitted to be installed on the underside of joists where supported at each joist and located so as not to be subject to
physical damage.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 13:43:19 EST 2015
Committee Statement
Committee Statement: The text provides exposed installation of Type MC consistent with other wiring methods.
Response Message:
Public Input No. 1986-NFPA 70-2014 [New Section after 330.12]
Ballot Results
400 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
4/22/2015 10:39 AM
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First Revision No. 1821-NFPA 70-2015 [ Section No. 330.30(A) ]
(A) General.
Type MC cable shall be supported and secured by staples, listed cable ties identified as Type 2S or Type 21S , straps, hangers, or similar fittings
or other approved means designed and installed so as not to damage the cable.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 13:46:23 EST 2015
Committee Statement
Committee
Statement:
Listing of cable ties approved for support of flexible conduits and cables is appropriate as the standard requires markings that identify
critical performance ranges that can impact their suitability for use, including minimum and maximum operating temperature and resistance
to ultraviolet light for outdoor installations. The proposed new requirements will provide for objective determination for suitability of cable ties
for this use.
Response
Message:
Public Input No. 1367-NFPA 70-2014 [Section No. 330.30(A)]
Ballot Results
401 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
4/22/2015 10:39 AM
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First Revision No. 1822-NFPA 70-2015 [ Section No. 330.30(D) ]
(D) Unsupported Cables.
Type MC cable shall be permitted to be unsupported and unsecured where the cable complies with any of the following :
(1) Is fished between access points through concealed spaces in finished buildings or structures and supporting is impractical.
(2) Is not more than 1.8 m (6 ft) in length from the last point of cable support to the point of connection to luminaires or other electrical
equipment and the cable and point of connection are within an accessible ceiling.
(3) Is Type MC of the interlocked armor type in lengths not exceeding 900 mm (3 ft) from the last point where it is securely fastened and is used
to connect equipment where flexibility is necessary to minimize the transmission of vibration from equipment or to provide flexibility for
equipment that requires movement after installation.
For the purpose of this section, Type MC cable fittings shall be permitted as a means of cable support.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 13:51:16 EST 2015
Committee Statement
Committee Statement: The wording was changed to make it clear that neither support nor securement is required for these applications.
Response Message:
Public Input No. 113-NFPA 70-2014 [Section No. 330.30(D)]
Public Input No. 4822-NFPA 70-2014 [Section No. 330.30(D)]
Ballot Results
402 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
4/22/2015 10:39 AM
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First Revision No. 1817-NFPA 70-2015 [ Section No. 330.40 ]
330.40 Boxes and Fittings.
Fittings used for connecting Type MC cable to boxes, cabinets, or other equipment shall be listed and identified for such use.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 11:38:34 EST 2015
Committee Statement
Committee Statement: Requirements for listed and identified fittings is now found in 330.6.
Response Message:
Ballot Results
403 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
4/22/2015 10:39 AM
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First Revision No. 1806-NFPA 70-2015 [ New Definition after Definition: Mineral-Insulated, Metal-S... ]
332.6 Listing Requirements.
Type MI cable and associated fittings shall be listed and labeled.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 10:21:46 EST 2015
Committee Statement
Committee
Statement:
Listing is based on compliance with recognized product standards. Non listed cables and associated fittings may not have been
evaluated for compliance with such requirements, and in some cases lack of such compliance may make it difficult to determine
acceptance in the field.
The addition of the words “and labeled” will insure that the AHJ has clear evidence that the wiring method and fittings are listed by an
acceptable product evaluation organization.
Response
Message:
Public Input No. 1338-NFPA 70-2014 [New Definition after Definition: Mineral-Insulated, Metal-S...]
Ballot Results
404 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
4/22/2015 10:39 AM
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First Revision No. 1824-NFPA 70-2015 [ Section No. 334.6 ]
334.6 Listed Listing Requirements .
Type NM, Type NMC, and Type NMS cables and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 14:46:44 EST 2015
Committee Statement
Committee
Statement:
Requiring NM, NMC and NMS cables to be listed and “labeled” would be consistent with most NRTL certification directories and also
provide users a means of identification of the product.
Response
Message:
Public Input No. 886-NFPA 70-2014 [Section No. 334.6]
Ballot Results
405 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1826-NFPA 70-2015 [ Section No. 334.12(A) ]
(A) Types NM, NMC, and NMS.
Types NM, NMC, and NMS cables shall not be permitted as follows:
(1) In any dwelling or structure not specifically permitted in 334.10(1) , (2), (3), and (5)
(2) Exposed in dropped within a dropped or suspended ceilings ceiling cavity in other than one- and two-family and multifamily dwellings
(3) As service-entrance cable
(4)
In commercial garages having hazardous (classified) locations as defined in 511.3
(5) In theaters and similar locations, except where permitted in 518.4(B)
(6) In motion picture studios
(7) In storage battery rooms
(8) In hoistways or on elevators or escalators
(9) Embedded in poured cement, concrete, or aggregate
(10) In hazardous (classified) locations, except where specifically permitted by other articles in this Code
Supplemental Information
File Name
Description
Section_334.12_FR_1826_DG.docx
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 15:17:25 EST 2015
Committee Statement
Committee
Statement:
A ceiling is defined as the inside surface at the top of a room. The proposed terminology changes more accurately describe the
prohibited locations.
Response Message:
Public Input No. 676-NFPA 70-2014 [Section No. 334.12(A)]
Ballot Results
406 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1830-NFPA 70-2015 [ Section No. 334.30 [Excluding any Sub-Sections] ]
Nonmetallic-sheathed cable shall be supported and secured by staples, listed cable ties identified as Type 2S or Type 21S , straps, hangers, or
similar fittings designed and installed so as not to damage the cable, at intervals not exceeding 1.4 m (41⁄2 ft) and within 300 mm (12 in.) of every
outlet box cable entry into enclosures such as outlet boxes , junction box boxes , cabinets , or fittings . Flat cables shall not be stapled on edge.
Sections of cable protected from physical damage by raceway shall not be required to be secured within the raceway.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 16:51:21 EST 2015
Committee Statement
Committee
Statement:
Listing of cable ties approved for support of flexible conduits and cables is appropriate as the standard requires markings that identify
critical performance ranges that can impact their suitability for use, including minimum and maximum operating temperature and resistance
to ultraviolet light for outdoor installations. The proposed new requirements will provide for objective determination for suitability of cable ties
for this use.
UL Directory QEUY states that panelboards are intended for mounting in cabinets which makes the addition of “panelboard” unnecessary.
The panel chose the new wording to address these concerns.
Response
Message:
Public Input No. 1342-NFPA 70-2014 [Section No. 334.30 [Excluding any Sub-Sections]]
Public Input No. 1694-NFPA 70-2014 [Section No. 334.30]
Ballot Results
407 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1831-NFPA 70-2015 [ Section No. 334.30(B) ]
(B) Unsupported Cables.
Nonmetallic-sheathed cable shall be permitted to be unsupported where the cable:
(1) Is fished between access points through concealed spaces in finished buildings or structures and supporting is impracticable.
(2) Is not more than 1.4 m (41⁄2 ft) from the last point of cable support to the point of connection to a luminaire or other piece of electrical
equipment and the cable and point of connection are within an accessible ceiling in one-, two-, or multifamily dwellings .
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 16:56:29 EST 2015
Committee Statement
Committee
Statement:
The current wording of this code section could be improperly applied to allow NM Cables above a suspended ceiling of a non-dwelling
unit. This change provides additional clarity.
Response
Message:
Public Input No. 4823-NFPA 70-2014 [Section No. 334.30(B)]
Ballot Results
408 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1825-NFPA 70-2015 [ Section No. 334.80 ]
334.80 Ampacity.
The ampacity of Types NM, NMC, and NMS cable shall be determined in accordance with 310.15 . The allowable ampacity shall not exceed that
of a 60°C (140°F) rated conductor. The 90°C (194°F) rating shall be permitted to be used for ampacity adjustment and correction calculations,
provided the final derated calculated ampacity does not exceed that of a 60°C (140°F) rated conductor. The ampacity of Types NM, NMC, and
NMS cable installed in cable trays shall be determined in accordance with 392.80(A) .
Where more than two NM cables containing two or more current-carrying conductors are installed, without maintaining spacing between the
cables, through the same opening in wood framing that is to be sealed with thermal insulation, caulk, or sealing foam, the allowable ampacity of
each conductor shall be adjusted in accordance with Table 310.15(B)(3)(a) and the provisions of 310.15(A)(2) , Exception, shall not apply.
Where more than two NM cables containing two or more current-carrying conductors are installed in contact with thermal insulation without
maintaining spacing between cables, the allowable ampacity of each conductor shall be adjusted in accordance with Table 310.15(B)(3)(a) .
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 14:48:43 EST 2015
Committee Statement
Committee Statement: The use of the term ”calculated” takes into account the adjustment and correction calculation being performed for the installation.
Response Message:
Public Input No. 1961-NFPA 70-2014 [Section No. 334.80]
Ballot Results
409 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1833-NFPA 70-2015 [ New Definition after Definition: Power and Control Tray Cab... ]
336.6 Listing Requirements.
Type TC cables and associated fittings shall be listed and labeled.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 08:39:56 EST 2015
Committee Statement
Committee
Statement:
Listing is based on compliance with recognized product standards. Non listed cables and associated fittings may not have been
evaluated for compliance with such requirements, and in some cases lack of such compliance may make it difficult to determine
acceptance in the field.
The addition of the words “and labeled” will insure that the AHJ has clear evidence that the wiring method and fittings are listed by an
acceptable product evaluation organization.
Response
Message:
Public Input No. 1339-NFPA 70-2014 [New Definition after Definition: Power and Control Tray Cab...]
Ballot Results
410 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1832-NFPA 70-2015 [ Section No. 336.10 ]
Detail FR-1840
336.10 Uses Permitted.
Type TC cable shall be permitted to be used as follows:
(1) For power, lighting, control, and signal circuits.
(2) In cable trays. , including those with mechanically discontinuous segments up to 300 mm (1 ft).
(3) In raceways.
(4) In outdoor locations supported by a messenger wire.
(5) For Class 1 circuits as permitted in Parts II and III of Article 725 .
(6) For non–power-limited fire alarm circuits if conductors comply with the requirements of 760.49 .
(7) Type TC tray shall be permitted between Between a cable tray and the utilization equipment or device. (s), provided all of the following
apply:
a.
The cable is Type TC-ER.
b.
In The cable is installed in industrial establishments where the conditions of maintenance and supervision ensure that only qualified
persons service the installation, .
c.
and where the The cable is continuously supported and protected against physical damage using mechanical protection, such as
struts, angles, or channels, .
d.
The cable that complies with the crush and impact requirements of Type MC cable and is identified for such use with the marking
Type “ TC–ER”.
e.
The cable shall be is secured at intervals not exceeding 1.8 m (6 ft).
f.
Equipment grounding for the utilization equipment shall is be provided by an equipment grounding conductor within the cable. In
cables containing conductors sized 6 AWG or smaller, the equipment grounding conductor shall must be provided within the cable or,
at the time of installation, one or more insulated conductors shall must be permanently identified as an equipment grounding conductor
in accordance with 250.119(B) .
Exception to (7): Where not subject to physical damage, Type TC-ER shall be permitted to transition between cable trays and between
cable trays and utilization equipment or devices for a distance not to exceed 1.8 m (6 ft) without continuous support. The cable shall be
mechanically supported where exiting the cable tray to ensure that the minimum bending radius is not exceeded.
(8) Where installed in wet locations, Type TC cable shall also be resistant to moisture and corrosive agents.
(9) In one- and two-family dwelling units, Type TC-ER cable containing both power and control conductors that is identified for pulling through
structural members shall be permitted to be installed between a power inlet box or permanently installed generator and the transfer
equipment. Type TC-ER cable used as exterior wiring shall be installed per the requirements of Part II of Article 340 . Type TC-ER cable
used as interior wiring shall be installed per the requirements of Part II of Article 334 .
Informational Note: TC-ER cable that is suitable for pulling through structural members is marked “JP.”
(10) Direct buried, unless where identified for such use
Informational Note: See 310.15(A)(3) for temperature limitation of conductors.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 08:09:34 EST 2015
Committee Statement
Committee
Statement:
Cable trays are allowed to be installed with mechanically discontinuous segments in 392.18(A). If the discontinuous segment is 12 inches
or less, the revised language will allow tray cable to be installed without additional support. 12 inches is the maximum support separation
in cable tray allowed in NEMA VE-1.
List item (7) was rewritten for clarity. The Exception title was changed to add “to (7)” for clarity. This change makes it clear that the
exception applies only to list item (7).
Response
Message:
Public Input No. 1716-NFPA 70-2014 [Section No. 336.10]
Public Input No. 827-NFPA 70-2014 [Section No. 336.10]
Ballot Results
411 of 1802
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This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1839-NFPA 70-2015 [ Section No. 336.12 ]
336.12 Uses Not Permitted.
Type TC tray cable shall not be installed or used as follows:
(1) Installed where it will be exposed to physical damage
(2) Installed outside a raceway or cable tray system, except as permitted in 336.10(4) , 336.10(7) (4) , 336.10(9) , and 336.10(10) (7)
(3) Used where exposed to direct rays of the sun, unless identified as sunlight resistant
(3) Direct buried, unless identified for such use
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Fri Jan 16 09:54:14 EST 2015
Committee Statement
Committee Statement: This revision updates the list to reflect added locations in 336.10.
Moved 336.12(4) to last list item of section 336.10.
Response Message:
Public Input No. 272-NFPA 70-2014 [Section No. 336.12]
Public Input No. 1897-NFPA 70-2014 [Section No. 336.12]
Ballot Results
413 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1827-NFPA 70-2015 [ New Definition after Definition: Service-Entrance Cable. ]
338.6 Listing Requirements.
Type SE and USE cables and associated fittings shall be listed and labeled.
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 15:30:30 EST 2015
Committee Statement
Committee
Statement:
Listing is based on compliance with recognized product standards. Non listed cables and associated fittings may not have been
evaluated for compliance with such requirements, and in some cases lack of such compliance may make it difficult to determine
acceptance in the field.
The addition of the words “and labeled” will insure that the AHJ has clear evidence that the wiring method and fittings are listed by an
acceptable product evaluation organization.
Response
Message:
Public Input No. 1341-NFPA 70-2014 [New Definition after Definition: Service-Entrance Cable.]
Ballot Results
414 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 1828-NFPA 70-2015 [ Section No. 338.10(B)(4) ]
(4) Installation Methods for Branch Circuits and Feeders.
(a) Interior Installations. In addition to the provisions of this article, Type SE service-entrance cable used for interior wiring shall comply with the
installation requirements of Part II of Article 334, excluding 334.80 .
Where For Type SE cable with ungrounded conductor sizes 10 AWG and smaller, where installed in thermal insulation, the ampacity shall
be in accordance with 60°C (140°F) conductor temperature rating. The maximum conductor temperature rating shall be permitted to be
used for ampacity adjustment and correction purposes, if the final derated ampacity does not exceed that for a 60°C (140°F) rated
conductor.
Informational Note No. 1: See 310.15(A)(3) for temperature limitation of conductors.
Informational Note No. 2: For the installation of main power feeder conductors in dwelling units refer to 310.15(B)(7) .
(b) Exterior Installations. In addition to the provisions of this article, service-entrance cable used for feeders or branch circuits, where installed
as exterior wiring, shall be installed in accordance with Part I of Article 225 . The cable shall be supported in accordance with 334.30 . Type
USE cable installed as underground feeder and branch circuit cable shall comply with Part II of Article 340 .
Exception: Single-conductor Type USE and multi-rated USE conductors shall not be subject to the ampacity limitations of Part II of Article 340 .
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 15:52:40 EST 2015
Committee Statement
Committee
Statement:
This change will align smaller SE cables with NM cables as related to heat dissipation when installed in thermal insulation. The fact that SE
cables typically have a 75 degree temperature rating and connected to 75 degree rated equipment terminations, it seems logical that SE
cables should be permitted to be used at their 75 degree ampacity in accordance with 310.15. The # 8 and larger SE cables have been used
for decades installed in thermal insulation without documented reports of failures strictly due to being in this type of environment.
Response
Message:
Public Input No. 1460-NFPA 70-2014 [Section No. 338.10(B)(4)]
Ballot Results
415 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
0 Affirmative with Comments
2 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Wheeler, Wesley L.
Williams, David A.
Negative with Comment
La Dart, Samuel R.
There is no substantiation given for this. There has been no testing to show that there is not a overheating problem with this cable in insulation.
Straniero, George A.
No technical substantiation was provided to exempt larger sized Type SE cable from the ampacity requirements of 334.80 where the cable is installed in
thermal insulation. Exemption of the ampacity requirement based on the size of the conductors is not technically substantiated. The panel has requested
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technical support for several code cycles showing that Type SE cable behaves differently NM or UF cable when installed in thermal insulation. No such
information has been provided. Revision based on size does not address concern for overheating where larger sized cables are installed in thermal
insulation. If anything larger sized cables with larger and more continuous loads are more of a concern.
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First Revision No. 1829-NFPA 70-2015 [ Section No. 340.6 ]
340.6 Listing Requirements.
Type UF cable and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 7
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Thu Jan 15 16:14:15 EST 2015
Committee Statement
Committee
Statement:
Listing is based on compliance with recognized product standards. Non listed cables and associated fittings may not have been
evaluated for compliance with such requirements, and in some cases lack of such compliance may make it difficult to determine
acceptance in the field.
The addition of the words “and labeled” will insure that the AHJ has clear evidence that the wiring method and fittings are listed by an
acceptable product evaluation organization.
Response
Message:
Public Input No. 887-NFPA 70-2014 [Section No. 340.6]
Ballot Results
417 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
13 Affirmative All
0 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Cybula, Thomas H.
Earl, Timothy
Fahrenthold, Chris J.
Hunter, Christel K.
La Dart, Samuel R.
Mercier, Charles David
Nickson, Ronald G.
Nielsen, Dennis A.
Ray, John W.
Runyon, Gregory L.
Straniero, George A.
Wheeler, Wesley L.
Williams, David A.
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First Revision No. 2119-NFPA 70-2015 [ Section No. 342.6 ]
342.6 Listing Requirements.
IMC, factory elbows and couplings, and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 14:49:13 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Response Message:
Public Input No. 888-NFPA 70-2014 [Section No. 342.6]
Ballot Results
418 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the smallest shipping package.
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
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First Revision No. 2120-NFPA 70-2015 [ Section No. 342.10(B) ]
(B) Corrosion Environments.
IMC, elbows, couplings, and fittings shall be permitted to be installed in concrete, in direct contact with the earth, or in areas subject to severe
corrosive influences where protected by corrosion protection and judged suitable approved for the condition.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 14:50:59 EST 2015
Committee Statement
Committee
Statement:
Approved is defined in Article 100 and this change will clarify when supplementary corrosion protection needs to be applied and is
acceptable.
Response Message:
Public Input No. 1203-NFPA 70-2014 [Section No. 342.10(B)]
Ballot Results
419 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Approved is defined in Article 100 and this change will clarify when supplementary corrosion protection needs to be applied and is acceptable.
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First Revision No. 2121-NFPA 70-2015 [ Section No. 342.10(C) ]
(C) Cinder Fill.
IMC shall be permitted to be installed in or under cinder fill where subject to permanent moisture where protected on all sides by a layer of
noncinder concrete not less than 50 mm (2 in.) thick; where the conduit is not less than 450 mm (18 in.) under the fill; or where protected by
corrosion protection and judged suitable approved for the condition.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 14:57:49 EST 2015
Committee Statement
Committee
Statement:
Approved is defined in Article 100 and this change will clarify when supplementary corrosion protection needs to be applied and is
acceptable.
Response Message:
Public Input No. 1204-NFPA 70-2014 [Section No. 342.10(C)]
Ballot Results
420 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
change will clarify when supplementary corrosion protection needs to be applied and is acceptable.
4/22/2015 10:39 AM
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First Revision No. 2129-NFPA 70-2015 [ Section No. 342.14 ]
342.14 Dissimilar Metals.
Where practicable, dissimilar metals in contact anywhere in the system shall be avoided to eliminate the possibility of galvanic action.
Aluminum fittings and enclosures shall be permitted to be used with galvanized steel IMC where not subject to severe corrosive influences.
Stainless steel IMC shall only be used with stainless steel fittings and approved accessories, outlet boxes, and enclosures .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 08:05:30 EST 2015
Committee Statement
Committee
Statement:
This revision clarifies the acceptable fittings that can be used with galvanized and stainless steel IMC, based on galvanic
compatibility.
Response Message:
Public Input No. 2873-NFPA 70-2014 [Section No. 342.14]
Ballot Results
421 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
clarifies the acceptable fittings that can be used with galvanized and stainless steel IMC, based on galvanic compatibility.
4/22/2015 10:39 AM
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First Revision No. 2130-NFPA 70-2015 [ Section No. 342.30(B) ]
(B) Supports.
IMC shall be supported in accordance with one of the following:
(1) Conduit shall be supported at intervals not exceeding 3 m (10 ft).
(2) The distance between supports for straight runs of conduit shall be permitted in accordance with Table 344.30(B)(2) , provided the conduit is
made up with threaded couplings and such supports that prevent transmission of stresses to termination where conduit is deflected
between supports.
(3) Exposed vertical risers from industrial machinery or fixed equipment shall be permitted to be supported at intervals not exceeding 6 m (20 ft)
if the conduit is made up with threaded couplings, the conduit is supported and securely fastened at the top and bottom of the riser, and no
other means of intermediate support is readily available.
(4) Horizontal runs of IMC supported by openings through framing members at intervals not exceeding 3 m (10 ft) and securely fastened within
900 mm (3 ft) of termination points shall be permitted.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 08:25:04 EST 2015
Committee Statement
Committee Statement: This is an editorial change that improves clarity.
Response Message:
Public Input No. 3332-NFPA 70-2014 [Section No. 342.30(B)]
Ballot Results
422 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
improves clarity.
4/22/2015 10:39 AM
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First Revision No. 2131-NFPA 70-2015 [ New Section after 342.60 ]
342.100 Construction.
IMC shall be made of one of the following:
(1) Steel, with protective coatings
(2) Stainless steel
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 08:27:33 EST 2015
Committee Statement
Committee Statement: Stainless steel has been added to the IMC Standard, UL 1242, and is added in Article 342.
Response Message:
Public Input No. 2874-NFPA 70-2014 [New Section after 342.60]
Ballot Results
423 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Stainless steel has been added to the IMC Standard, UL 1242, and is added in Article 342.
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First Revision No. 2132-NFPA 70-2015 [ Section No. 342.120 ]
342.120 Marking.
Each length shall be clearly and durably marked at least every 1.5 m (5 ft) with the letters IMC. Each length shall be marked as required in the
first sentence of 110.21 110.21(A) .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 08:30:52 EST 2015
Committee Statement
Committee
Statement:
This revision corrects the reference to 110.21(A) and adds additional text to be consistent with 344.120 for manufacturers markings
requirements for IMC.
Response Message:
Public Input No. 1343-NFPA 70-2014 [Section No. 342.120]
Ballot Results
424 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
This revision corrects the reference to 110.21(A) and adds additional text to be consistent with 344.120 for manufacturers markings requirements for IMC.
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First Revision No. 2133-NFPA 70-2015 [ Section No. 344.6 ]
344.6 Listing Requirements.
RMC, factory elbows and couplings, and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 08:32:26 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Response Message:
Public Input No. 889-NFPA 70-2014 [Section No. 344.6]
Ballot Results
425 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled".
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
4/22/2015 10:39 AM
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First Revision No. 2134-NFPA 70-2015 [ Section No. 344.10(A)(3) ]
(3) Aluminum RMC.
Aluminum RMC shall be permitted to be installed where judged suitable approved for the environment. Rigid aluminum conduit encased in
concrete or in direct contact with the earth shall be provided with approved supplementary corrosion protection.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 08:33:48 EST 2015
Committee Statement
Committee Statement: "Approved" is defined in Article 100 and is enforceable. "Judged Suitable" is not enforceable and is difficult to interpret.
Response Message:
Public Input No. 1200-NFPA 70-2014 [Section No. 344.10(A)(3)]
Ballot Results
426 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
"Approved" is defined in Article 100 and is enforceable
4/22/2015 10:39 AM
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First Revision No. 2135-NFPA 70-2015 [ Section No. 344.10(B)(1) ]
(1) Galvanized Steel, Stainless Steel, and Red Brass RMC, Elbows, Couplings, and Fittings.
Galvanized steel, stainless steel, and red brass RMC elbows, couplings, and fittings shall be permitted to be installed in concrete, in direct
contact with the earth, or in areas subject to severe corrosive influences where protected by corrosion protection and judged suitable approved
for the condition.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 08:36:14 EST 2015
Committee Statement
Committee Statement: "Approved" is defined in Article 100 and is enforceable. "Judged Suitable" is not enforceable and is difficult to interpret.
Response Message:
Public Input No. 1201-NFPA 70-2014 [Section No. 344.10(B)(1)]
Ballot Results
427 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
"Approved" is defined in Article 100 and is enforceable
4/22/2015 10:39 AM
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First Revision No. 2136-NFPA 70-2015 [ Section No. 344.10(C) ]
(C) Cinder Fill.
Galvanized steel, stainless steel, and red brass RMC shall be permitted to be installed in or under cinder fill where subject to permanent moisture
where protected on all sides by a layer of noncinder concrete not less than 50 mm (2 in.) thick; where the conduit is not less than 450 mm (18 in.)
under the fill; or where protected by corrosion protection and judged suitable approved for the condition.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 08:37:22 EST 2015
Committee Statement
Committee Statement: "Approved" is defined in Article 100 and is enforceable. "Judged Suitable" is not enforceable and is difficult to interpret.
Response Message:
Public Input No. 1202-NFPA 70-2014 [Section No. 344.10(C)]
Ballot Results
428 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
"Approved" is defined in Article 100 and is enforceable.
4/22/2015 10:39 AM
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First Revision No. 2137-NFPA 70-2015 [ Section No. 344.14 ]
344.14 Dissimilar Metals.
Where practicable, dissimilar metals in contact anywhere in the system shall be avoided to eliminate the possibility of galvanic action. Aluminum
fittings and enclosures shall be permitted to be used with galvanized steel RMC, and galvanized steel fittings and enclosures shall be permitted
to be used with aluminum RMC where not subject to severe corrosive influences. Stainless steel RMC shall only be used with stainless steel
fittings and approved accessories, outlet boxes, and enclosures.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 08:39:27 EST 2015
Committee Statement
Committee Statement: This revision clarifies the acceptable fittings that can be used with different types of RMC, based on galvanic compatibility.
Response Message:
Public Input No. 2875-NFPA 70-2014 [Section No. 344.14]
Ballot Results
429 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
This revision clarifies the acceptable fittings that can be used with different types of RMC, based on galvanic compatibility.
4/22/2015 10:39 AM
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First Revision No. 2138-NFPA 70-2015 [ Section No. 344.30(B) ]
(B) Supports.
RMC shall be supported in accordance with one of the following:
(1) Conduit shall be supported at intervals not exceeding 3 m (10 ft).
(2) The distance between supports for straight runs of conduit shall be permitted in accordance with Table 344.30(B)(2) , provided the conduit is
made up with threaded couplings and such supports that prevent transmission of stresses to termination where conduit is deflected
between supports.
(3) Exposed vertical risers from industrial machinery or fixed equipment shall be permitted to be supported at intervals not exceeding 6 m (20 ft)
if the conduit is made up with threaded couplings, the conduit is supported and securely fastened at the top and bottom of the riser, and no
other means of intermediate support is readily available.
(4) Horizontal runs of RMC supported by openings through framing members at intervals not exceeding 3 m (10 ft) and securely fastened within
900 mm (3 ft) of termination points shall be permitted.
Table 344.30(B)(2) Supports for Rigid Metal Conduit
Conduit Size
Metric Designator
Maximum Distance Between Rigid Metal Conduit Supports
Trade Size
1
16–21
m
ft
⁄ 2 –3 ⁄ 4
3.0
10
27
1
3.7
12
35–41
11⁄4–11⁄2
4.3
14
53–63
2–21⁄2
4.9
16
78 and larger
3 and larger
6.1
20
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 08:50:09 EST 2015
Committee Statement
Committee Statement: This is an editorial change that improves clarity.
Response Message:
Public Input No. 3330-NFPA 70-2014 [Section No. 344.30(B)]
Ballot Results
430 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
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Affirmative with Comment
Allen, David F.
improves clarity
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First Revision No. 2139-NFPA 70-2015 [ Section No. 344.100 ]
344.100 Construction.
RMC shall be made of one of the following:
(1) Steel (ferrous), with or without protective coatings
(2) Aluminum (nonferrous)
(3) Red brass
(4) Stainless steel
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 08:52:54 EST 2015
Committee Statement
Committee
Statement:
This revision clarifies the metal types used for the manufacture of RMC. RMC without protective coatings was removed because it is
not covered in the listing UL 6.
Response
Message:
Public Input No. 1345-NFPA 70-2014 [Section No. 344.100]
Public Input No. 2876-NFPA 70-2014 [Section No. 344.100]
Ballot Results
432 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
clarifies the metal types used for the manufacture of RMC.
4/22/2015 10:39 AM
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First Revision No. 2165-NFPA 70-2015 [ Section No. 348.6 ]
348.6 Listing Requirements.
FMC and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 14:35:49 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Response Message:
Public Input No. 890-NFPA 70-2014 [Section No. 348.6]
Ballot Results
433 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled".
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
4/22/2015 10:39 AM
National Fire Protection Association Report
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First Revision No. 2166-NFPA 70-2015 [ Section No. 348.30(A) ]
(A) Securely Fastened.
FMC shall be securely fastened in place by an approved means within 300 mm (12 in.) of each box, cabinet, conduit body, or other conduit
termination and shall be supported and secured at intervals not to exceed 1.4 m (41⁄2 ft). Where used, cable ties shall be listed and be identified
for securement and support.
Exception No. 1: Where FMC is fished between access points through concealed spaces in finished buildings or structures and supporting is
impracticable.
Exception No. 2: Where flexibility is necessary after installation, lengths from the last point where the raceway is securely fastened shall not
exceed the following:
(1) 900 mm (3 ft) for metric designators 16 through 35 (trade sizes 1⁄2 through 11⁄4)
(2) 1200 mm (4 ft) for metric designators 41 through 53 (trade sizes 11⁄2 through 2)
(3) 1500 mm (5 ft) for metric designators 63 (trade size 21⁄2) and larger
Exception No. 3: Lengths not exceeding 1.8 m (6 ft) from a luminaire terminal connection for tap connections to luminaires as permitted
in 410.117(C) .
Exception No. 4: Lengths not exceeding 1.8 m (6 ft) from the last point where the raceway is securely fastened for connections within an
accessible ceiling to a luminaire(s) or other equipment. For the purposes of this exception, listed flexible metal conduit fittings shall be permitted
as a means of securement and support.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 14:40:25 EST 2015
Committee Statement
Committee
Statement:
Section 348.30(A) requires that flexible metal conduit be both secured and supported at prescribed distances.
Securing a raceway may be different than supporting the raceway. Exception 4 directs that a listed fitting may be used to support the
raceway however this exception does not address the issue of securement. A strict reading of exception 4 would allow the listed fitting to
provide the support required by this section however the fitting would not provide the securement also required by this section. This input
would allow the listed fitting to provide both securement and support which appears to be the panel's intent.
Cable ties have long been among the “approved means” for securing and supporting flexible metal conduit. Listing of cable ties approved for
support of flexible conduits and cables is appropriate as the standard requires markings that identify critical performance ranges that can
impact their suitability for use, including minimum and maximum operating temperature and resistance to ultraviolet light for outdoor
installations. The proposed new requirements will provide for objective determination for suitability of cable ties for this use.
Response
Message:
Public Input No. 109-NFPA 70-2014 [Section No. 348.30(A)]
Public Input No. 1350-NFPA 70-2014 [Section No. 348.30(A)]
Ballot Results
434 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
4/22/2015 10:39 AM
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Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
flexible metal conduit be both secured and supported at prescribed distances.
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First Revision No. 2167-NFPA 70-2015 [ Section No. 350.6 ]
350.6 Listing Requirements.
LFMC and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 14:43:13 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Response Message:
Public Input No. 891-NFPA 70-2014 [Section No. 350.6]
Ballot Results
436 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
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First Revision No. 2168-NFPA 70-2015 [ Section No. 350.10 ]
350.10 Uses Permitted.
LFMC shall be permitted to be used in exposed or concealed locations as follows:
(1) Where conditions of installation, operation, or maintenance require flexibility or protection from liquids, vapors, or solids
(2) As permitted by 501.10(B) , 502.10 , 503.10 , and 504.20 and in other In hazardous (classified) locations where specifically approved,
and by 553.7(B) permitted by Chapter 5
(3) For direct burial where listed and marked for the purpose
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 14:44:43 EST 2015
Committee Statement
Committee
Statement:
The specific references were removed and replaced with a general reference to Chapter 5. The reference to 553.7(B) was not
necessary.
Response Message:
Public Input No. 763-NFPA 70-2014 [Section No. 350.10]
Ballot Results
437 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
The specific references were removed and replaced with a general reference to Chapter 5.
4/22/2015 10:39 AM
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First Revision No. 2169-NFPA 70-2015 [ New Section after 350.26 ]
350.28 Trimming.
All cut ends of conduit shall be trimmed inside and outside to remove rough edges.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 14:52:37 EST 2015
Committee Statement
Committee
Statement:
This revision provides consistency between Article 350 Liquidtight Flexible metal Conduit: Type LFMC and article Article 356 Liquidtight
Flexible Nonmetallic Conduit: Type LFNC, where trimming is addressed in 356.28.
Properly trimming of LFMC is necessary as to allow the proper installation of the steel grounding ferrule which is important to maintain
ground continuity of the steel sheath.
Response
Message:
Public Input No. 2482-NFPA 70-2014 [New Section after 350.26]
Ballot Results
438 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
This revision provides consistency
4/22/2015 10:39 AM
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First Revision No. 2170-NFPA 70-2015 [ Section No. 350.30(A) ]
(A) Securely Fastened.
LFMC shall be securely fastened in place by an approved means within 300 mm (12 in.) of each box, cabinet, conduit body, or other conduit
termination and shall be supported and secured at intervals not to exceed 1.4 m (41⁄2 ft). Where used, cable ties shall be listed and be identified
for securement and support.
Exception No. 1: Where LFMC is fished between access points through concealed spaces in finished buildings or structures and supporting is
impractical.
Exception No. 2: Where flexibility is necessary after installation, lengths from the last point where the raceway is securely fastened shall not
exceed the following:
(1) 900 mm (3 ft) for metric designators 16 through 35 (trade sizes 1⁄2 through 11⁄4)
(2) 1200 mm (4 ft) for metric designators 41 through 53 (trade sizes 11⁄2 through 2)
(3) 1500 mm (5 ft) for metric designators 63 (trade size 21⁄2) and larger
Exception No. 3: Lengths not exceeding 1.8 m (6 ft) from a luminaire terminal connection for tap conductors to luminaires, as permitted in
410.117(C) .
Exception No. 4: Lengths not exceeding 1.8 m (6 ft) from the last point where the raceway is securely fastened for connections within an
accessible ceiling to luminaire(s) or other equipment. For the purposes of 350.30, listed LFMC fittings shall be permitted as a means of
securement and support.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 14:56:13 EST 2015
Committee Statement
Committee
Statement:
Section 350.30(A) requires that LFMC be both secured and supported at prescribed distances. Securing a raceway may be different than
supporting the raceway. Exception 4 directs that a listed fitting may be used to support the raceway however this exception does not address
the issue of securement. A strict reading of exception 4 would allow the listed fitting to provide the support required by this section however
the fitting would not provide the securement also required by this section.
Cable ties have long been among the “approved means” for securing and supporting flexible metal conduit. Listing of cable ties approved for
support of flexible conduits and cables is appropriate as the standard requires markings that identify critical performance ranges that can
impact their suitability for use, including minimum and maximum operating temperature and resistance to ultraviolet light for outdoor
installations. The proposed new requirements will provide for objective determination for suitability of cable ties for this use.
Response
Message:
Public Input No. 112-NFPA 70-2014 [Section No. 350.30(A)]
Public Input No. 1351-NFPA 70-2014 [Section No. 350.30(A)]
Ballot Results
439 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
4/22/2015 10:39 AM
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440 of 1802
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Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Section 350.30(A) requires that LFMC be both secured and supported at prescribed distances. Securing a raceway may be different than supporting the
raceway. Exception 4 directs that a listed fitting may be used to support the raceway however this exception does not address the issue of securement. A
strict reading of exception 4 would allow the listed fitting to provide the support required by this section however the fitting would not provide the
securement also required by this section.
4/22/2015 10:39 AM
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First Revision No. 2118-NFPA 70-2015 [ Section No. 352.6 ]
352.6 Listing Requirements.
PVC conduit, factory elbows, and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 13:59:22 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Response Message:
Public Input No. 892-NFPA 70-2014 [Section No. 352.6]
Ballot Results
441 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled".
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
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First Revision No. 2108-NFPA 70-2015 [ Section No. 353.6 ]
353.6 Listing Requirements.
HDPE conduit and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 11:12:53 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Response Message:
Public Input No. 893-NFPA 70-2014 [Section No. 353.6]
Ballot Results
442 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled".
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
4/22/2015 10:39 AM
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First Revision No. 2109-NFPA 70-2015 [ Section No. 354.6 ]
354.6 Listing Requirements.
NUCC and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 11:16:13 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Response Message:
Public Input No. 894-NFPA 70-2014 [Section No. 354.6]
Ballot Results
443 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled".
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
4/22/2015 10:39 AM
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First Revision No. 2110-NFPA 70-2015 [ Section No. 355.6 ]
355.6 Listing Requirements.
RTRC, factory elbows, and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 11:25:22 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Public Input No. 895-NFPA 70-2014 [Section No. 355.6]
Ballot Results
444 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled".
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
4/22/2015 10:39 AM
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First Revision No. 2111-NFPA 70-2015 [ Section No. 355.12(A) ]
(A) Hazardous (Classified) Locations.
(1) In any hazardous (classified) location, except as permitted by other articles in this Code
(2) In Class I, Division 2 locations, except as permitted in 501.10(B)(3) 501.10(B)(1) (6)
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 11:29:35 EST 2015
Committee Statement
Committee Statement: The cross-reference was updated.
Response Message:
Public Input No. 739-NFPA 70-2014 [Section No. 355.12(A)]
Ballot Results
445 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
cross-reference was updated.
4/22/2015 10:39 AM
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First Revision No. 2101-NFPA 70-2015 [ Section No. 356.6 ]
356.6 Listing Requirements.
LFNC and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 08:58:59 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Response Message:
Public Input No. 896-NFPA 70-2014 [Section No. 356.6]
Ballot Results
446 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled".
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
4/22/2015 10:39 AM
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First Revision No. 2102-NFPA 70-2015 [ Section No. 356.10 ]
356.10 Uses Permitted.
LFNC shall be permitted to be used in exposed or concealed locations for the following purposes:
Informational Note: Extreme cold may can cause some types of nonmetallic conduits to become brittle and therefore more susceptible to
damage from physical contact.
(1) Where flexibility is required for installation, operation, or maintenance.
(2) Where protection of the contained conductors is required from vapors, liquids, or solids.
(3) For outdoor locations where listed and marked as suitable for the purpose.
(4) For direct burial where listed and marked for the purpose.
(5) Type LFNC-B LFNC shall be permitted to be installed in lengths longer than 1.8 m (6 ft) where secured in accordance with 356.30 .
(6) Type LFNC-B as a listed manufactured prewired assembly, metric designator 16 through 27 (trade size 1⁄2 through 1) conduit.
(7) For encasement in concrete where listed for direct burial and installed in compliance with 356.42 .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 09:14:42 EST 2015
Committee Statement
Committee Statement: All types of LFNC are listed to UL1660 and are identified for conditions of use for lengths longer than 6 ft in all applications.
Response Message:
Public Input No. 663-NFPA 70-2014 [Section No. 356.10]
Ballot Results
447 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
All types of LFNC are listed to UL1660 and are identified for conditions of use for lengths longer than 6 ft in all applications.
4/22/2015 10:39 AM
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First Revision No. 2103-NFPA 70-2015 [ Section No. 356.12 ]
356.12 Uses Not Permitted.
LFNC shall not be used as follows:
(1) Where subject to physical damage
(2) Where any combination of ambient and conductor temperatures is in excess of that for which the LFNC it is approved listed
(3) In lengths longer than 1.8 m (6 ft), except as permitted by 356.10(5) or where a longer length is approved as essential for a required degree
of flexibility
(4) In any hazardous (classified) location, except as permitted by other articles in this Code
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 09:25:08 EST 2015
Committee Statement
Committee Statement: The listing defines temperature ratings for the conduit.
Response Message:
Public Input No. 578-NFPA 70-2014 [Section No. 356.12]
Ballot Results
448 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
The listing defines temperature ratings for the conduit.
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First Revision No. 2104-NFPA 70-2015 [ Section No. 356.30 ]
356.30 Securing and Supporting.
Type LFNC-B LFNC shall be securely fastened and supported in accordance with one of the following:
(1) Where installed in lengths exceeding 1.8 m (6 ft), the conduit shall be securely fastened at intervals not exceeding 900 mm (3 ft) and within
300 mm (12 in.) on each side of every outlet box, junction box, cabinet, or fitting. Where used, cable ties shall be listed as suitable for the
application and for securing and supporting.
(2) Securing or supporting of the conduit shall not be required where it is fished, installed in lengths not exceeding 900 mm (3 ft) at terminals
where flexibility is required, or installed in lengths not exceeding 1.8 m (6 ft) from a luminaire terminal connection for tap conductors to
luminaires permitted in 410.117(C) .
(3) Horizontal runs of LFNC supported by openings through framing members at intervals not exceeding 900 mm (3 ft) and securely fastened
within 300 mm (12 in.) of termination points shall be permitted.
(4) Securing or supporting of LFNC-B LFNC shall not be required where installed in lengths not exceeding 1.8 m (6 ft) from the last point where
the raceway is securely fastened for connections within an accessible ceiling to a luminaire(s) or other equipment. For the purpose of
356.30, listed liquidtight flexible nonmetallic conduit fittings shall be permitted as a means of support.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 09:35:43 EST 2015
Committee Statement
Committee
Statement:
All types of LFNC are listed to UL1660. UL 62275 establishes a system classification of cable ties intended for support of flexible
conduit.
Response Message:
Public Input No. 664-NFPA 70-2014 [Section No. 356.30]
Public Input No. 1352-NFPA 70-2014 [Section No. 356.30]
Ballot Results
449 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
All types of LFNC are listed to UL1660. UL 62275 establishes a system classification of cable ties intended for support of flexible conduit.
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First Revision No. 2140-NFPA 70-2015 [ Definition: Electrical Metallic Tubing (EMT). ]
Electrical Metallic Tubing (EMT).
An unthreaded thinwall raceway of circular cross section designed for the physical protection and routing of conductors and cables and for use as
an equipment grounding conductor when installed utilizing appropriate fittings. EMT is generally made of steel (ferrous) with protective coatings
or aluminum (nonferrous).
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 09:00:00 EST 2015
Committee Statement
Committee Statement: Deleted text is now located appropriately in 358.100, listing metals used in the manufacture of EMT.
Response Message:
Public Input No. 2402-NFPA 70-2014 [Section No. 358.2]
Ballot Results
450 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Deleted text is now located appropriately in 358.100, listing metals used in the manufacture of EMT.
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First Revision No. 2141-NFPA 70-2015 [ Section No. 358.6 ]
358.6 Listing Requirements.
EMT, factory elbows, and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 09:07:02 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Response Message:
Public Input No. 897-NFPA 70-2014 [Section No. 358.6]
Ballot Results
451 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled".
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
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First Revision No. 2144-NFPA 70-2015 [ Section No. 358.10 ]
358.10 Uses Permitted.
(A) Exposed and Concealed.
The use of EMT shall be permitted for both exposed and concealed work. for the following:
(1) In concrete, in direct contact with the earth or in areas subject to severe corrosive influences where installed in accordance with 358.10(B)
(2) In wet locations
(3) In any hazardous (classified) location as permitted by other articles in this Code
(B) Corrosion Protection Corrosive Environments .
(1) Galvanized Steel and Stainless Steel EMT, Elbows, and Fittings.
Ferrous or nonferrous Galvanized steel and stainless steel EMT, elbows, couplings, and fittings shall be permitted to be installed in concrete, in
direct contact with the earth, or in areas subject to severe corrosive influences where protected by corrosion protection and approved as suitable
for the condition.
(2) Supplementary Protection of Aluminum EMT.
Aluminum EMT shall be provided with approved supplementary corrosion protection where encased in concrete or in direct contact with the
earth.
(C) Cinder Fill.
Galvanized steel and stainless steel EMT shall be permitted to be installed in cinder concrete or cinder fill where subject to permanent moisture
when protected on all sides by a layer of noncinder concrete at least 50 mm (2 in.) thick or when the tubing is installed at least 450 mm (18 in.)
under the fill.
(D) Wet Locations.
All supports, bolts, straps, screws, and so forth shall be of corrosion-resistant materials or protected against corrosion by corrosion-resistant
materials.
Informational Note: See 300.6 for protection against corrosion.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 10:18:20 EST 2015
Committee Statement
Committee
Statement:
Section 358.10 was revised for consistency. Requirements were moved from 358.12 and reworded using positive language. Also
included is Stainless Steel EMT which is listed to UL797.
Response
Message:
Public Input No. 2975-NFPA 70-2014 [Section No. 358.10]
Ballot Results
452 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
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Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Section 358.10 was revised for consistency. Requirements were moved from 358.12 and reworded using positive language. Also included is Stainless
Steel EMT which is listed to UL797.
4/22/2015 10:39 AM
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First Revision No. 2142-NFPA 70-2015 [ New Section after 358.12 ]
358.14 Dissimilar Metals.
Where practicable, dissimilar metals in contact anywhere in the system shall be avoided to eliminate the possibility of galvanic action.
Aluminum fittings and enclosures shall be permitted to be used with galvanized steel EMT, and galvanized steel fittings and enclosures shall be
permitted to be used with aluminum EMT where not subject to severe corrosive influences. Stainless steel EMT shall only be used with
stainless steel fittings and approved accessories, outlet boxes, and enclosures.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 09:22:57 EST 2015
Committee Statement
Committee Statement: This revision clarifies the acceptable fittings that can be used with different types of EMT, based on galvanic compatibility.
Response Message:
Public Input No. 2877-NFPA 70-2014 [New Section after 358.12]
Ballot Results
454 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
clarifies the acceptable fittings that can be used with different types of EMT, based on galvanic compatibility.
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First Revision No. 2145-NFPA 70-2015 [ Section No. 358.12 ]
358.12 Uses Not Permitted.
EMT shall not be used under the following conditions:
(1) Where, during installation or afterward, it will be subject to severe physical damage.
(1) Where protected from corrosion solely by enamel.
(1) In cinder concrete or cinder fill where subject to permanent moisture unless protected on all sides by a layer of noncinder concrete at least
50 mm (2 in.) thick or unless the tubing is at least 450 mm (18 in.) under the fill.
(1) In any hazardous (classified) location except as permitted by other articles in this Code .
(2) For the support of luminaires or other equipment except conduit bodies no larger than the largest trade size of the tubing.
(2) Where practicable, dissimilar metals in contact anywhere in the system shall be avoided to eliminate the possibility of galvanic action.
Exception: Aluminum fittings and enclosures shall be permitted to be used with steel EMT where not subject to severe corrosive influences.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 10:23:48 EST 2015
Committee Statement
Committee
Statement:
Revised 358.12(1) to delete the text: "during installation or afterwards". All electrical equipment is subject to all types of physical damage
during the installation. "Start-Ups" and inspections insure that all equipment and wiring methods are in working condition.
358.12(3) and (4) have been moved to 358.10 and changed to positive text.
Response
Message:
Public Input No. 1347-NFPA 70-2014 [Section No. 358.12]
Public Input No. 1348-NFPA 70-2014 [Section No. 358.12]
Public Input No. 2986-NFPA 70-2014 [Section No. 358.12]
Ballot Results
455 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
10 Affirmative All
3 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
Affirmative with Comment
Allen, David F.
delete the text: "during installation or afterwards". All electrical equipment is subject to all types of physical damage during the installation. "Start-Ups" and
inspections insure that all equipment and wiring methods are in working condition.
Loyd, Richard E.
I agree with Mr. West, The information on dissimilar metals in (6) should have been deleted. This material is now covered in new 358.14 Dissimilar Metals
4/22/2015 10:39 AM
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as shown in FR 2142.
West, Rodney J.
The information on dissimilar metals in (6) should be deleted. This material is now covered in new 358.14 Dissimilar Metals as shown in FR 2142.
4/22/2015 10:39 AM
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First Revision No. 2143-NFPA 70-2015 [ Section No. 358.100 ]
358.100 Construction.
Factory-threaded integral couplings shall be permitted. Where EMT with a threaded integral coupling is used, threads for both the tubing and
coupling shall be factory-made. The coupling and EMT threads shall be designed so as to prevent bending of the tubing at any part of the
thread. made of one of the following:
(1) Steel with protective coatings
(2) Aluminum
(3) Stainless steel
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 09:43:22 EST 2015
Committee Statement
Committee Statement: This revision clarifies the metal types used for the manufacture of EMT. EMT is not threaded.
Response Message:
Public Input No. 2404-NFPA 70-2014 [Section No. 358.100]
Ballot Results
457 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
This revision clarifies the metal types used for the manufacture of EMT. EMT is not threaded.
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First Revision No. 2117-NFPA 70-2015 [ Definition: Flexible Metallic Tubing (FMT). ]
Flexible Metallic Tubing (FMT).
A metal raceway that is circular in cross section, flexible, metallic, and liquidtight without a nonmetallic jacket.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 13:37:27 EST 2015
Committee Statement
Committee Statement: Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
Response Message:
Public Input No. 655-NFPA 70-2014 [Definition: Flexible Metallic Tubing (FMT).]
Ballot Results
458 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
4/22/2015 10:39 AM
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First Revision No. 2112-NFPA 70-2015 [ Section No. 360.6 ]
360.6 Listing Requirements.
FMT and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 12:57:38 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Response Message:
Public Input No. 898-NFPA 70-2014 [Section No. 360.6]
Ballot Results
459 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled".
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
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First Revision No. 2113-NFPA 70-2015 [ Section No. 362.6 ]
362.6 Listing Requirements.
ENT and associated fittings shall be listed and labeled .
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 13:05:22 EST 2015
Committee Statement
Committee
Statement:
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the
smallest shipping package.
Response Message:
Public Input No. 899-NFPA 70-2014 [Section No. 362.6]
Ballot Results
460 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Listed products are labeled as defined in Article 100 "Labeled".
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
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First Revision No. 2114-NFPA 70-2015 [ Section No. 362.12 ]
362.12 Uses Not Permitted.
ENT shall not be used in the following:
(1) In any hazardous (classified) location, except as permitted by other articles in this Code
(2) For the support of luminaires and other equipment
(3) Where subject to ambient temperatures in excess of 50°C (122°F) unless listed otherwise
(4) For direct earth burial
(4) Where the voltage is over 600 volts
(5) In exposed locations, except as permitted by 362.10(1) , 362.10(5), and 362.10(7)
(6) In theaters and similar locations, except as provided in 518.4 and 520.5
(7) Where exposed to the direct rays of the sun, unless identified as sunlight resistant
(8) Where subject to physical damage
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 13:18:29 EST 2015
Committee Statement
Committee
Statement:
ENT is not limited by the voltage but is limited by the maximum conductor operation temperature for which the ENT is Listed for per
362.10(9). ENT can be used for 2000 volts as long as the maximum conductor operation temperature for which the ENT is Listed.
Response
Message:
Public Input No. 1528-NFPA 70-2014 [Section No. 362.12]
Public Input No. 3125-NFPA 70-2014 [Section No. 362.12]
Ballot Results
461 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
ENT is not limited by the voltage but is limited by the maximum conductor operation temperature for which the ENT is Listed for per 362.10(9). ENT can be
used for 2000 volts as long as the maximum conductor operation temperature for which the ENT is Listed.
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First Revision No. 2116-NFPA 70-2015 [ Section No. 362.20(B) ]
(B) Maximum.
ENT larger than metric designator 53 63 (trade size 21⁄2) shall not be used.
Informational Note: See 300.1(C) for the metric designators and trade sizes. These are for identification purposes only and do not relate to
actual dimensions.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 13:30:25 EST 2015
Committee Statement
Committee
Statement:
Bi-National Standard UL1653/ CSA C22.2 No. 227.1-06, Electrical Nonmetallic Tubing, has been revised to allow for metric designator 63.
This larger size of ENT is currently permitted to be used in Canada per the Canadian Electrical Code. Bi-National Standard UL1653/ CSA
C22.2 No. 227.1-06, Electrical Nonmetallic Tubing, has been revised to include both dimensional and performance requirements.
Response
Message:
Public Input No. 1349-NFPA 70-2014 [Section No. 362.20(B)]
Ballot Results
462 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Bi-National Standard UL1653/ CSA C22.2 No. 227.1-06, Electrical Nonmetallic Tubing, has been revised to allow for metric designator 63. This larger size
of ENT is currently permitted to be used in Canada per the Canadian Electrical Code. Bi-National Standard UL1653/ CSA C22.2 No. 227.1-06, Electrical
Nonmetallic Tubing, has been revised to include both dimensional and performance requirements.
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First Revision No. 2115-NFPA 70-2015 [ Section No. 362.30 ]
362.30 Securing and Supporting.
ENT shall be installed as a complete system in accordance with 300.18 and shall be securely fastened in place by an approved means and
supported in accordance with 362.30(A) and (B).
(A) Securely Fastened.
ENT shall be securely fastened at intervals not exceeding 900 mm (3 ft). In addition, ENT shall be securely fastened in place within 900 mm (3 ft)
of each outlet box, device box, junction box, cabinet, or fitting where it terminates. Where used, cable ties shall be listed as suitable for the
application and for securing and supporting.
Exception No. 1: Lengths not exceeding a distance of 1.8 m (6 ft) from a luminaire terminal connection for tap connections to lighting luminaires
shall be permitted without being secured.
Exception No. 2: Lengths not exceeding 1.8 m (6 ft) from the last point where the raceway is securely fastened for connections within an
accessible ceiling to luminaire(s) or other equipment.
Exception No. 3: For concealed work in finished buildings or prefinished wall panels where such securing is impracticable, unbroken lengths
(without coupling) of ENT shall be permitted to be fished.
(B) Supports.
Horizontal runs of ENT supported by openings in framing members at intervals not exceeding 900 mm (3 ft) and securely fastened within 900 mm
(3 ft) of termination points shall be permitted.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Mon Jan 19 13:24:24 EST 2015
Committee Statement
Committee Statement: UL 62275 establishes a system classification of cable ties intended for support of flexible conduit.
Response Message:
Public Input No. 1353-NFPA 70-2014 [Section No. 362.30]
Ballot Results
463 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
UL 62275 establishes a system classification of cable ties intended for support of flexible conduit.
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First Revision No. 2171-NFPA 70-2015 [ Section No. 366.1 ]
366.1 Scope.
This article covers the use, installation, and construction requirements of metallic metal auxiliary gutters and nonmetallic auxiliary gutters and
associated fittings.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 15:12:07 EST 2015
Committee Statement
Committee Statement: Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
Response Message:
Public Input No. 656-NFPA 70-2014 [Article 366]
Ballot Results
464 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
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First Revision No. 2172-NFPA 70-2015 [ Definition: Metallic Auxiliary Gutter. ]
Metallic Metal Auxiliary Gutter.
A sheet metal enclosure used to supplement wiring spaces at meter centers, distribution centers, switchgear, switchboards, and similar points of
wiring systems. The enclosure has hinged or removable covers for housing and protecting electrical wires, cable, and busbars. The enclosure is
designed for conductors to be laid or set in place after the enclosures have been installed as a complete system.
Nonmetallic Auxiliary Gutter.
A flame-retardant, nonmetallic enclosure used to supplement wiring spaces at meter centers, distribution centers, switchgear, switchboards, and
similar points of wiring systems. The enclosure has hinged or removable covers for housing and protecting electrical wires, cable, and busbars.
The enclosure is designed for conductors to be laid or set in place after the enclosures have been installed as a complete system.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 15:13:57 EST 2015
Committee Statement
Committee Statement: Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
Response Message:
Ballot Results
465 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
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First Revision No. 2178-NFPA 70-2015 [ Section No. 366.6 ]
366.6 Listing Requirements.
(A) Outdoors.
Nonmetallic auxiliary gutters installed outdoors shall comply with be listed and labeled for all of the following conditions :
(1) Be listed as suitable for exposure Exposure to sunlight
(2) Be listed as suitable for use Use in wet locations
(3) Be listed for maximum Maximum ambient temperature of the installation
(B) Indoors.
Nonmetallic auxiliary gutters installed indoors shall be listed and labeled for the maximum ambient temperature of the installation.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 15:44:12 EST 2015
Committee Statement
Committee
Statement:
"Listed as suitable" is the same as "listed", "as suitable" adds no strengthening or lessening of the requirement. “Listed” is much more
prevalent in the Code than “listed as suitable”.
Listed products are labeled as defined in Article 100 "Labeled". Some Listed products are marked or require markings on the smallest
shipping package.
Response
Message:
Public Input No. 3237-NFPA 70-2014 [Section No. 366.6(A)]
Ballot Results
466 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
11 Affirmative All
1 Affirmative with Comments
1 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
"Listed as suitable" is the same as "listed", "as suitable" adds no strengthening or lessening of the requirement. “Listed” is much more prevalent in the
Code than “listed as suitable”.
Negative with Comment
Offerdahl, Donald R.
A requirement that all listed equipment be labeled with the listing organization’s mark of conformity conflicts with the definition of Listed in Article 100,
including the Informational Note saying, “Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed
4/22/2015 10:39 AM
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467 of 1802
http://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPara...
product.” The definition is not only the NEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note in
many NFPA standards). It is not for CMP 8 to decide to override an official definition. In addition, it is inappropriate for the NEC Committee to dictate
certification practices to listing organizations. By requiring that listed equipment display the listing organization’s mark, CMP 8 would be dictating the
business practices of the various listing organizations without a clear statement of need, against the advice contained in the Informational Note to the
definition.
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First Revision No. 2173-NFPA 70-2015 [ Section No. 366.10(A) ]
(A) Sheet Metallic Metal Auxiliary Gutters.
(1) Indoor and Outdoor Use.
Sheet metallic metal auxiliary gutters shall be permitted for indoor and outdoor use.
(2) Wet Locations.
Sheet metallic metal auxiliary gutters installed in wet locations shall be suitable for such locations.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 15:15:35 EST 2015
Committee Statement
Committee Statement: Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
Response Message:
Ballot Results
468 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
4/22/2015 10:39 AM
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First Revision No. 2179-NFPA 70-2015 [ New Section after 366.12 ]
366.20 Conductors Connected in Parallel.
Where single conductor cables comprising each phase, neutral, or grounded conductor of an alternating-current circuit are connected in
parallel as permitted in 310.10(H) , the conductors shall be installed in groups consisting of not more than one conductor per phase, neutral,
or grounded conductor to prevent current imbalance in the paralleled conductors due to inductive reactance.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 15:54:16 EST 2015
Committee Statement
Committee
Statement:
There have been documented failures of parallel phase conductors due to inductive heating, where installed in wireways or auxiliary
gutters. In addition to the requirement of each parallel phase conductor being the same length, the proper grouping of phases can reduce
inductive heating and result in a more balanced load between each conductor of a parallel phase.
Response
Message:
Public Input No. 4490-NFPA 70-2014 [Section No. 366.12]
Ballot Results
469 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
the proper grouping of phases can reduce inductive heating and result in a more balanced load between each conductor of a parallel phase.
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First Revision No. 2174-NFPA 70-2015 [ Section No. 366.22 ]
366.22 Number of Conductors.
(A) Sheet Metallic Metal Auxiliary Gutters.
The sum of the cross-sectional areas of all contained conductors and cables at any cross section of a sheet metallic metal auxiliary gutter shall
not exceed 20 percent of the interior cross-sectional area of the sheet metallic metal auxiliary gutter. The adjustment factors in 310.15(B)(3)(a)
shall be applied only where the number of current-carrying conductors, including neutral conductors classified as current-carrying under the
provisions of 310.15(B)(5), exceeds 30. Conductors for signaling circuits or controller conductors between a motor and its starter and used only
for starting duty shall not be considered as current-carrying conductors.
(B) Nonmetallic Auxiliary Gutters.
The sum of cross-sectional areas of all contained conductors and cables at any cross section of the nonmetallic auxiliary gutter shall not exceed
20 percent of the interior cross-sectional area of the nonmetallic auxiliary gutter.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 15:16:48 EST 2015
Committee Statement
Committee Statement: Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
Cables are acceptable for use in auxiliary gutters where the wire fill does not exceed 20 percent.
Response Message:
Public Input No. 2485-NFPA 70-2014 [Section No. 366.22]
Ballot Results
470 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
4/22/2015 10:39 AM
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First Revision No. 2175-NFPA 70-2015 [ Section No. 366.23(A) ]
(A) Sheet Metallic Metal Auxiliary Gutters.
Where the number of current-carrying conductors contained in the sheet metallic metal auxiliary gutter is 30 or less, the adjustment factors
specified in 310.15(B)(3) (a) shall not apply. The current carried continuously in bare copper bars in sheet metallic metal auxiliary gutters shall
2
2
not exceed 1.55 amperes/mm (1000 amperes/in. ) of cross section of the conductor. For aluminum bars, the current carried continuously shall
2
2
not exceed 1.09 amperes/mm (700 amperes/in. ) of cross section of the conductor.
Submitter Information Verification
Submitter Full Name: CMP 8
Organization:
[ Not Specified ]
Street Address:
City:
State:
Zip:
Submittal Date:
Tue Jan 20 15:22:16 EST 2015
Committee Statement
Committee Statement: Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
Response Message:
Ballot Results
471 of 1802
This item has passed ballot
13 Eligible Voters
0 Not Returned
12 Affirmative All
1 Affirmative with Comments
0 Negative with Comments
0 Abstention
Affirmative All
Campbell, David M.
Cogburn, Larry D.
Gerstetter, David A.
Hengst, Kenneth W.
Jackson, Pete
Johnson, Gary K.
Kendall, David H.
Loyd, Richard E.
Myers, Paul W.
Offerdahl, Donald R.
Roe, Rhett A.
West, Rodney J.
Affirmative with Comment
Allen, David F.
Metal should be used, instead of Metallic, when describing materials per the NEC Style Manual.
4/22/2015 10:39 AM
National Fire Protection Association Report
http://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPara...
First Revision No. 2176-NFPA 70-2015 [ Section No. 366.30(A) ]
(A) Sheet Metallic Metal Auxiliary Gutters.
Sheet metallic metal auxiliary gutters shall be supported and secured throughout their entire length at intervals not exceeding 1.5 m (5 ft).
Submitter Information Verification
Submitte