Significant Changes in the 2014 NEC®

advertisement
9/28/13
Significant Changes in the 2014 NEC®
1
MICHAEL J. JOHNSTON
EXECUTIVE DIRECTOR STANDARDS AND SAFETY – NECA
NEC CORRELATING COMMITTEE - NFPA
9/28/13
Copyright NECA 2013
General Information
2
—  This presentation reviews
various significant changes
for the 2014 NEC.
— 
3745 Proposals
— 
1625 Comments
Courtesy of NFPA
9/28/13
Copyright NECA 2013
NJATC Textbook
3
—  Presentation includes
material from the NJATC
2014 NEC Significant
Changes Textbook.
—  Authors
¡ 
¡ 
Michael Johnston – NECA
Joe Sheehan - NJATC
Courtesy of NJATC
Copyright NECA 2013
9/28/13
1
9/28/13
2014 NEC – New Articles
4
—  Article 393, Low Voltage Suspended Ceiling Power
Distribution Systems [ROP 18-10a]
—  Article 646, Modular Data Centers [ROP 12-147]
—  Article 728, Fire Resistive Cable Systems [ROP
3-170]
—  Article 750, Energy Management Systems [ROP
13-180]
9/28/13
Copyright NECA 2013
Code-Wide Changes
5
—  Requirements for DC systems and wiring
incorporated throughout the NEC
—  Raising the 600 Volts threshold to 1000 Volts in
multiple articles throughout the NEC
—  Incorporation of the word switchgear and revise the
definition
—  More specific requirements for markings
9/28/13
Copyright NECA 2013
Introduction
6
ARTICLE 90
Copyright NECA 2013
9/28/13
2
9/28/13
90.8(B) Number of Circuits in Enclosures
7
—  Proposal 1-19
—  Revision removes the words “in one circuit”
—  Clarifies that a short circuit or ground fault condition
is not limited to any one circuit within raceways or
enclosures addressed by this section
9/28/13
Copyright NECA 2013
Copyright NECA 2013
8
9/28/13
General
9
CHAPTER 1
Copyright NECA 2013
9/28/13
3
9/28/13
Article 100 Coordination (Selective)
10
—  Proposal 10-5, Comment 10-2
—  The word “choice” is replaced by the words “selection
and installation” to clarify it is selection and
installation of overcurrent protection that achieves
selective coordination.
—  Selective coordination is across the “full range” of
available overcurrents.
9/28/13
Copyright NECA 2013
9/28/
Copyright NECA 2013
13
11
Article 100 Control Circuit
12
—  Proposal 11-8
—  Revision and relocation of the definition of the term
“motor control circuit”
—  The word “motor” is removed from the definition
making the term “control circuit” a new definition
that applies to all control circuits, not just motor
control circuits.
Copyright NECA 2013
9/28/13
4
9/28/13
9/28/13
13
Copyright NECA 2013
Article 100 Device
14
—  Proposal 1-31a
—  Revision adds the words “other
than a conductor” to the
definition
—  Clarifies that a device typically
carries current but it is not a
conductor as defined and
referenced elsewhere in the NEC
Courtesy Pass and
Seymour Legrand
9/28/13
Copyright NECA 2013
Article 100 Premises Wiring System
15
—  Proposal 1-61
—  New informational note was added to the existing
definition
—  Provides examples of a premises wiring system for
additional clarification such as batteries, photovoltaic
systems, interconnected power sources, stand-alone
generators, and so forth
Copyright NECA 2013
9/28/13
5
9/28/13
Copyright NECA 2013
16
9/28/13
Article 100 Retrofit Kit
17
—  Proposal 18-9, Comment 18-4
—  New definition of the term “Retrofit Kit.”
—  A general term for a complete subassembly of parts
and devices for field conversion of utilization
equipment.
9/28/13
Copyright NECA 2013
Courtesy of Independence LED Lighting, LLC
Copyright NECA 2013
18
9/28/13
6
9/28/13
Article 100 Switchgear
19
—  Proposal 9-7, 9-104a, Comment 9-7, 9-104a
—  Revision of definition of the term metal-enclosed
switchgear removes the word “power”
—  Addresses all types of switchgear and new
informational note includes a list of switchgear types
to which the revised definition applies
9/28/13
Copyright NECA 2013
Copyright NECA 2013
20
9/28/13
110.16 Arc-Flash Hazard Warning
21
—  Proposal 1-105, Comments 1-47, 1-52, 1-53, 1-56
—  Revision adds the words “or factory” to the rule
—  Clarifies that the marking could be applied in the
field or at the factory by a manufacturer
—  Reference to 110.21(B) has been added to this section
Copyright NECA 2013
9/28/13
7
9/28/13
Copyright NECA 2013
22
9/28/13
Section 110.21(B) Field Marking
23
—  Proposal 1-114, Comments
1-59, 1-60, 1-61
—  New subdivision (B) adds
requirements for warning,
caution, or danger,
markings, labels, or signs
required by the NEC
—  Markings, signs, or labels
should meet the
requirements in ANSI
Z535.4
9/28/13
Copyright NECA 2013
Section 110.24 Available Fault Current
24
—  Proposals 1-121, 1-124, Comment 1-64, 1-66
—  New informational note added
—  Clarifies that the available fault current markings
required by 110.24 are for equipment rating
purposes only and not for arc-flash hazard analysis
as required by NFPA 70E
Copyright NECA 2013
9/28/13
8
9/28/13
© 2013 NJATC
Copyright NECA 2013
25
9/28/13
110.25 Lockable Disconnecting Means
26
—  Proposal 1-130, Comment 1-76
—  New section provides consistent requirements for
Code rules and exceptions that require a lockable
disconnecting means.
—  Code-wide proposals to remove text from all sections
that provide the specific requirements for lockable
disconnecting means.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
27
9/28/13
9
9/28/13
Section 110.26(C)(3) Personnel Doors
28
—  Proposal 1-143a
—  Revision reduces the ampere value “1200” to “800”
amperes.
—  Clarifies the requirements for panic hardware are
required for large equipment with an 800-ampere rating
or greater
9/28/13
Copyright NECA 2013
Section 110.26(C)(3) Personnel Doors
29
—  Proposal 1-145
—  Section revised to include only the term “panic
hardware”
—  Revision to this section removes the terms “simple
pressure plates” and other devices that are normally
latched but are released under simple pressure
—  Change results in consistency with applicable Building
Codes that only use the term “panic hardware”
9/28/13
Copyright NECA 2013
Copyright NECA 2013
30
9/28/13
10
9/28/13
110.26(E)(2)(a) and (b)
31
—  Proposals 1-154, 1-155
—  This section has been restructured into a list format
and new list item (b) has been added and is titled
“Dedicated Equipment Space.”
—  The requirements for dedicated space for equipment
installed outside are similar to the dedicated space
requirements for equipment located indoors.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
32
9/28/13
Section 110.33(A)(3) Personnel Doors
33
—  Proposal 1-169a
—  Section revised to include only the term “panic
hardware.”
—  Revision to this section removes the terms “simple
pressure plates” and other devices that are normally
latched but are released under simple pressure.
—  Building Codes use the term “panic hardware.”
Copyright NECA 2013
9/28/13
11
9/28/13
34
Copyright NECA 2013
9/28/13
Wiring and Protection
35
CHAPTER 2
9/28/13
Copyright NECA 2013
200.4(B) Multiple Circuits
36
—  Proposal 5-29
—  New subdivision (B) titled “Multiple Circuits” has been
added to this section.
—  Requires grouping the common neutral conductor with
its associated ungrounded conductors when contained in
the same enclosure.
—  The new exception relaxes the requirement where the
grouping is obvious.
Copyright NECA 2013
9/28/13
12
9/28/13
© 2013 NJATC
37
Copyright NECA 2013
9/28/13
Section 210.8(A)(9) Bathtubs
or Shower Stalls
38
—  Proposal 2-46
—  New list item (9) added to Section 210.8.
—  (9) Bathtubs or Shower Stalls - where receptacles are
installed within 1.8 m (6 ft) of the inside edge of the
bathtub or shower stall.
9/28/13
Copyright NECA 2013
Courtesy Pass and
Seymour Legrand
Copyright NECA 2013
39
9/28/13
13
9/28/13
Section 210.8(A)(10) Laundry Areas
40
—  Proposal 2-47, Comment 2-23
—  New list item (10) added to Section 210.8(A).
—  (10) Laundry Areas now required to have GFCI
protection for 125-volt, single phase, 15- and 20ampere receptacles.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
41
9/28/13
210.8(D) Kitchen Dishwasher Branch Circuit
42
—  Proposal 2-58, Comment 2-29
—  A new subdivision (D) titled “Kitchen Dishwasher
Branch Circuit” has been added to 210.8.
—  Outlets supplying dishwashers are required to be
GFCI protected.
Copyright NECA 2013
9/28/13
14
9/28/13
Copyright NECA 2013
43
9/28/13
210.12 AFCI Protection
44
—  Proposal 2-116, Comment
2-59
—  AFCI protective devices are
required to be installed in a
readily accessible location
Courtesy Eaton
Corporation
Courtesy Pass and
Seymour Legrand
9/28/13
Copyright NECA 2013
Section 210.12(A) Kitchen and Laundry
45
—  Proposals 2-80 and 2-82a, Comments 2-48 – 2-50
—  Change adds laundry areas and kitchen branch circuits
and outlets to the AFCI protection requirements
—  Continues the progression toward “whole-house”
protection originally sought by CPSC in the 1999 NEC
development cycle
Copyright NECA 2013
9/28/13
15
9/28/13
Copyright NECA 2013
9/28/13
46
Section 210.12(A)(4) AFCI Protection
47
—  Proposal 2-92, Comment 2-52
—  Revision recognizes use of
circuit breakers or outlet
devices at the first outlet in
the circuit
—  Specific conditions must be
met to apply for outlet AFCI
devices
Courtesy Pass and
Seymour Legrand
9/28/13
Copyright NECA 2013
© 2013 NJATC
Copyright NECA 2013
48
9/28/13
16
9/28/13
Section 210.13 GFPE
49
—  Proposal 2-125
—  New Section 210.13 Ground-Fault Protection of
Equipment
—  Branch circuit disconnect rated 1000 amperes or
more and installed on solidly grounded wye electrical
systems of more than 150 volts to ground, but not
exceeding 600 volts phase-to- phase, shall be
provided with GFPE in accordance with 230.95
9/28/13
Copyright NECA 2013
Copyright NECA 2013
50
9/28/13
Section 210.17 EV Branch Circuit
51
—  Proposal 2-128
—  New section 210.17 added to Article 210
—  210.17 Electric Vehicle Branch Circuit. 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
"Electrical Vehicle"
Copyright NECA 2013
9/28/13
17
9/28/13
Courtesy Pass and
Seymour Legrand
Copyright NECA 2013
52
9/28/13
Section 210.64 Electrical Service Areas
53
—  Proposal 2-191
—  New Section 210.64 added to Article 210 and
exception for one- and two-family dwelling units
—  At least one 125-volt, single-phase, 15- or 20-ampere
receptacle outlet within 15 m (50 ft) of the electrical
service equipment
9/28/13
Copyright NECA 2013
Copyright NECA 2013
54
9/28/13
18
9/28/13
Section 230.44 Cable Trays
55
—  Proposal 4-133
—  Revision adds spacing intervals for labels.
—  Revised to include spacing interval for service
conductor warning labels (not to exceed 10 feet).
9/28/13
Copyright NECA 2013
© 2013 NJATC
Copyright NECA 2013
56
9/28/13
Section 240.87 Arc Energy Reduction
57
—  Proposal 10-53a, Comment 10-24
—  This section is now titled “Arc Energy Reduction”
—  Applies to circuit breakers with a trip rating of 1200
amperes or greater
—  Includes new list items (4), and (5) recognizing other
methods of arc energy reduction by a specific
system/equipment other approved means.
Copyright NECA 2013
9/28/13
19
9/28/13
Courtesy of GE Arc Vault™ Protection
System photography courtesy of GE’s
Industrial Solutions business
58
Copyright NECA 2013
9/28/13
Section 250.21(C) Marking
59
—  Proposal 5-66
—  Revision to current marking requirements in
subdivision (C).
—  Revision adds specific words for the Caution Sign as
follows:
Caution Ungrounded System Operating - ____
Volts Between Conductors
9/28/13
Copyright NECA 2013
250.30(A)(1) Exception No. 2 (new)
60
—  Proposal 5-85
—  A supply-side bonding jumper is not required
between enclosures where a system bonding jumper
installed at both locations and a parallel path is not
created for the system grounded conductor current.
—  The new exception is necessary after requirements
for supply-side bonding jumper(s) were added in the
2011 NEC.
Copyright NECA 2013
9/28/13
20
9/28/13
250.30(A)(2) Exception (new)
61
—  Proposal 5-88, 5-87
—  A supply-side bonding jumper is not required
between enclosures where a system bonding jumper
installed at both locations and a parallel path is not
created for the system grounded conductor current.
—  The new exception is necessary after requirements
for supply-side bonding jumper(s) were added in the
2011 NEC.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
62
9/28/13
250.30(A)(5) and (6) Exceptions
63
—  Proposal 5-90, 5-91
—  The words “is located within equipment listed and
identified as Suitable for Use as Service Equipment”
have been incorporated into the same exception
appearing in two locations within this section.
—  The revision clarifies that the separately derived
system source must be an integral component of the
equipment and not located in a separate enclosure.
Copyright NECA 2013
9/28/13
21
9/28/13
Courtesy of Schneider Electric
Copyright NECA 2013
64
9/28/13
250.32(B)(1) Exception No. 2
65
—  Proposal 5-244c
—  The new exception applies if two system bonding
jumpers are installed in accordance with 250.30(A)
(1) Exception No. 2.
—  A system bonding jumper is permitted to be installed
at both locations if doing so does not create a parallel
path for system grounded conductor current.
9/28/13
Copyright NECA 2013
© 2013 NJATC
Copyright NECA 2013
66
9/28/13
22
9/28/13
250.64(B) Protection for GEC
67
—  A new last sentence has been added to 250.64(B).
—  The requirements in 300.5 for underground
installations do not apply to buried grounding
electrode conductors or bonding jumpers of the
grounding electrode system.
—  Chapter 3 wiring methods that contain grounding
electrode conductors must comply with 300.5.
9/28/13
Copyright NECA 2013
© 2013 NJATC
Copyright NECA 2013
68
9/28/13
Section 250.102(C) – New Table
69
—  Proposal 5-42, Comment 5-56
—  New table provides minimum sizes for other than
grounding electrode conductors bonding jumpers for
the grounding electrode system
—  Provides minimum sizing of line-side bonding
jumpers, grounded conductors, main bonding
jumpers, system bonding jumpers.
Copyright NECA 2013
9/28/13
23
9/28/13
Copyright NECA 2013
70
9/28/13
Section 250.166 Grounding Electrode Conductor
71
—  Proposal 5-222
—  Revised to clarify maximum sizes required for GEC
of DC systems.
—  The maximum size required for grounding electrode
conductors installed for DC systems to comply with
250.166 and not required to larger than 3/0 copper
or 250 kcmil aluminum. (maximum in Table 250.66)
9/28/13
Copyright NECA 2013
Copyright NECA 2013
72
9/28/13
24
9/28/13
Section 250.167 DC Ground Fault Detection
73
—  Proposal 5-233
—  New requirements for ground fault detection on DC
systems.
—  Requirements address grounded systems,
ungrounded systems, and marking rules for each.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
Courtesy of PDE Total74
Energy Solutions
9/28/13
250.186 Ground Fault Current Path
75
—  Proposal 5-234
—  For grounded systems, a grounded conductor must
be installed and routed with the ungrounded
conductors to each service disconnecting means.
—  For ungrounded systems, a supply-side bonding
jumper must be installed and routed with the
ungrounded conductors to each service
disconnecting means.
Copyright NECA 2013
9/28/13
25
9/28/13
Copyright NECA 2013
Courtesy of Schneider Electric
76
9/28/13
Section 250.194 Grounding and Bonding of
Fences and Other Metal Structures
77
—  Proposal 5-241
—  New section added to Article 250, Part X.
—  Includes new rules for bonding and grounding fences
and other metal structures around substations.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
78
9/28/13
26
9/28/13
Wiring Methods and Materials
79
CHAPTER 3
9/28/13
Copyright NECA 2013
Section 300.6(A)(1) Protected from Corrosion
Solely by Enamel
80
—  Proposal 3-51
—  New informational note added to list item (1)
—  New IN clarifies that field-cut threads are those not
cut in the factory where the product is manufactured
and listed
9/28/13
Copyright NECA 2013
81
Copyright NECA 2013
9/28/13
27
9/28/13
310.15(B)(3)(c) and Table 310.15(B)(3)(c)
82
—  Proposal 6-31, Comment 6-29
—  Revised to remove the term “circular raceways” and
add the term “cables”
—  Where conductors or cables installed in raceways or
cables are exposed to direct sunlight on or above
rooftops, the adjustments shown in Table 310.15(B)
(3)(c) apply
9/28/13
Copyright NECA 2013
Copyright NECA 2013
83
9/28/13
310.15(B)(3)(c) Exception
84
—  Proposal 6-41, Comment 6-37
—  Ambient temperature correction factors in Table
310.15(B)(2)(a) or Table 310.15(B)(2)(b) do not
apply to XHHW-2 insulated conductors in raceways
and cables on or above rooftops and exposed to
direct sunlight
—  Performance testing by both General Cable and
Underwriters Laboratories
Copyright NECA 2013
9/28/13
28
9/28/13
© 2013 NJATC
Copyright NECA 2013
85
9/28/13
Section and Table 310.15(B)(7)
86
—  Proposal 6-49a
—  Deletion of Table 310.15(B)(7) and revision to Section
310.15(B)(7)
—  Revision deletes the table and replaces it with a provision
allowing a .83 reduction in ampacity for dwelling services
and feeder conductors. The reduction is the same as what
was permitted by former Table 310.15(B)(7) but
presented in a user friendly format
9/28/13
Copyright NECA 2013
Copyright NECA 2013
87
9/28/13
29
9/28/13
Section 314.25 Covers and Canopies
88
—  Proposal 9-55
—  Revision clarifies that drywall screws are not
permitted for used on box covers or other equipment
fastened to the box.
—  Cover and canopy screws need to be suitable for this
purpose. Similar revisions included in Article 404
and 406.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
89
9/28/13
Section 330.30(D) Unsupported Cable
90
—  Proposal 7-31
—  New list item (3) added to this section
—  New list item (3) permits MC cable to be installed
unsupported in lengths not exceeding 3 feet for
vibration reasons or flexibility
Copyright NECA 2013
9/28/13
30
9/28/13
91
9/28/13
Copyright NECA 2013
Section 348.30(A) Exc. No. 4
92
—  Proposal 8-54
—  Revision to the exception for clarification
—  Revision clarifies that flexible metal conduit fittings
are permitted as a support means for the purpose of
applying the exception
9/28/13
Copyright NECA 2013
Copyright NECA 2013
93
9/28/13
31
9/28/13
Section 376.22(B) Adjustment Factors
94
—  Proposal 8-137
—  Revision addresses the maximum of 30 current-
carrying conductors
—  Revision clarifies that the 30 conductor maximum
before application of correction factors applies at any
cross section of the wireway
9/28/13
Copyright NECA 2013
© 2013 NJATC
95
Copyright NECA 2013
9/28/13
Section 392.18(H) Marking
96
—  Proposal 8-179
—  New exception added to this section
—  New exception relaxes the marking requirement
(DANGER HIGH VOLTAGE KEEP AWAY) for
industrial establishments with conditions of
maintenance and supervision and qualified persons
service the installation
Copyright NECA 2013
9/28/13
32
9/28/13
Copyright NECA 2013
97
9/28/13
Article 393 Low Voltage Suspended Ceiling
Power Distribution Systems
98
—  Proposal 18-10a
—  New Article in Chapter 3
—  New article for low voltage
DC equipment (lighting and
power) connected to a ceiling
grid built for this purpose.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
99
9/28/13
33
9/28/13
Equipment for General Use
100
CHAPTER 4
9/28/13
Copyright NECA 2013
Section 404.2(C) Switches – Lighting Loads
101
—  Proposal 9-89
—  As revised this section now relaxes the requirement
where multiple switches controlling the same
lighting load are installed in in the same area
—  The grounded circuit conductor must be installed to
only one of those switch box locations by the new
exception
—  Door jam switches in closets exempted
9/28/13
Copyright NECA 2013
© 2013 NJATC
Copyright NECA 2013
102
9/28/13
34
9/28/13
Section 406.3(E) Controlled
Receptacle Marking
103
—  Proposal 18-15
—  New marking symbol required for receptacles
controlled by an automatic control device or by an
automatic energy management system.
—  Change includes new Figure 406.3(E):
9/28/13
Copyright NECA 2013
© 2013 NJATC
Copyright NECA 2013
104
9/28/13
406.4(D) AFCI and GFCI Replacements
105
—  Proposal 18-18
—  Replacement AFCI and
GFCI devices at outlets
are required to be
readily accessible.
Courtesy Pass and
Seymour Legrand
Copyright NECA 2013
9/28/13
35
9/28/13
Section 406.5(E) Receptacles Installed in
Countertops and Similar Work Surfaces
106
—  Proposal 18-32
—  Revision addresses receptacles installed in the face-
up position in surfaces.
—  Revision expands the restriction of receptacles
installed in the face up position to all occupancies,
not just dwellings.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
107
9/28/13
406.9(B)(1) Receptacle Outlet Hood Covers
108
—  Proposals 18-37, 18-38
—  The words “other than one- and two-family
dwellings” have been removed from this section.
—  Listed and identified “extra duty” receptacle covers
(hoods) are required for all 15- and 20-ampere, 125and 250-volt receptacles installed in a wet location.
Copyright NECA 2013
9/28/13
36
9/28/13
Copyright NECA 2013
109
9/28/13
Section 408.3(E) Phase Arrangement
110
—  Proposal 9-110
—  Section revised and in list format and adds DC
system rules
—  Revision places bus arrangements in a list format
and incorporates a requirement for field-marking the
bus arrangements for DC systems
9/28/13
Copyright NECA 2013
Copyright NECA 2013
111
9/28/13
37
9/28/13
408.55(C) Rear Wire-Bending Space
112
—  Proposals 9-130, 9-131
—  The section has been restructured into three
subdivisions and expanded to address rear wirebending space in enclosures.
—  Subdivision (C) includes new requirements for rear
wire-bending spaces.
9/28/13
Copyright NECA 2013
Courtesy of Schneider Electric
Copyright NECA 2013
113
9/28/13
Section 410.6 Listing Required
114
—  Proposal 18-59
—  Revision adds new listing requirements.
—  Revision expands the listing requirement to retrofit
kits for lampholders and luminaires.
—  Similar revision to 600.3 covering electric signs and
outline lighting systems.
Copyright NECA 2013
9/28/13
38
9/28/13
Copyright NECA 2013
115
9/28/13
Section 410.10(F) Luminaires Installed
in or Under Roof Decking
116
—  Proposal 18-66
—  New installation restrictions for luminaires
—  New rule addresses protection for luminaires and
restricts them from being installed within 1-1/2
inches of the lowest metal deck surface, similar to
the rule in 300.4(E)
9/28/13
Copyright NECA 2013
© 2013 NJATC
Copyright NECA 2013
117
9/28/13
39
9/28/13
Section 422.23 Tire Inflation and
Automotive Vacuum Machines
118
—  Proposal 17-31
—  Tire inflation equipment or vacuum machines for
public use must be protected by ground-fault circuitinterrupter (GFCI) protection for personnel.
—  The GFCI protection (circuit breaker or outlet
device) is required to be readily accessible.
9/28/13
Copyright NECA 2013
119
Copyright NECA 2013
9/28/13
424.66(B) Limited Access
120
—  Proposal 17-75, Comment 17-19
—  A new subdivision (B) titled “Limited Access” has
been added to 424.66.
—  The width and depth of working space in 110.26 is
required in front of duct heater enclosures
containing equipment that requires servicing while
energized.
Copyright NECA 2013
9/28/13
40
9/28/13
© 2013 NJATC
121
Copyright NECA 2013
9/28/13
Section 445.11 Marking
122
—  Proposal 13-10, 13-11
—  Revision requires a marking when the neutral of a
generator is bonded to the generator frame.
—  Revision requires specific information to be included
on the generator (more than 15 KW) nameplate.
Power factor, impedances, insulation system class,
and time ratings.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
123
9/28/13
41
9/28/13
Section 445.20 GFCI Protection for Receptacles
on Portable Generators
124
—  Proposal 13-19
—  New GFCI requirements for portable generator
receptacles
—  All 125-volt, single-phase, 15- 20-, and 30-ampere
receptacle outlets, that are a part of a 15 kW or
smaller, portable generator, must have ground-fault
circuit interrupter protection for personnel integral
to the generator or receptacle
9/28/13
Copyright NECA 2013
Copyright NECA 2013
125
9/28/13
Section 450.10(A) Grounding
126
—  Proposal 9-144
—  New provision incorporates specific requirements for
installing an equipment grounding terminal bar in
transformer enclosures but not on the vent screen
portion.
—  An exception addresses transformers with pigtail
leads used as the connection means.
Copyright NECA 2013
9/28/13
42
9/28/13
Copyright NECA 2013
127
9/28/13
Section 480.8(C) Accessibility
128
—  Proposal 13-38
—  New rules requiring accessibility
—  New section requires terminals and transparent
battery containers required to be readily accessible
9/28/13
Copyright NECA 2013
129
Copyright NECA 2013
9/28/13
43
9/28/13
Special Occupancies
130
CHAPTER 5
9/28/13
Copyright NECA 2013
Figures 514.3(a) and 514.3(b)
131
—  Proposal 14-237
—  Note 2 following Table 514.3(B)(1) now refers to
Figures 514.3(a) and (b).
—  The existing Figure 514.3 would be replaced with
Figures 8.3.2(a) and 8.2.3(b) from NFPA 30A.
—  The revision results in consistency between NEC
Article 514 and NFPA 30A.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
132
9/28/13
44
9/28/13
517.18(B) Patient Bed
Location Receptacles
133
—  Proposal 15-36
—  This revision increases the minimum number of
receptacles required from four to eight
—  Aligns with NFPA 99 relative to the increases in
quantity of receptacles and normal care patient bed
locations
9/28/13
Copyright NECA 2013
134
Copyright NECA 2013
9/28/13
517.19(B) Patient Bed
Location Receptacles
135
—  Proposal 15-39
—  The revision in subdivision (B) changes the required
minimum number of receptacles from six to
fourteen.
—  List item (2) was revised by removing the term
“emergency system” and replacing it with the term
“critical branch.”
—  It aligns with changes in NFPA 99-2012.
Copyright NECA 2013
9/28/13
45
9/28/13
Copyright NECA 2013
136
9/28/13
517.19(C) Operating Room Receptacles
137
l  Proposal 15-41
l  The minimum number of receptacles required in an
operating room is thirty-six of which at least twelve of the
thirty-six receptacles must be connected to either the
normal system branch or the critical system branch.
l  The grounding terminal of these receptacles must be
connected to the reference grounding point by means of
an insulated copper equipment grounding conductor.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
138
9/28/13
46
9/28/13
Special Equipment
139
CHAPTER 6
9/28/13
Copyright NECA 2013
Article 625 Electric Vehicle Charging
and Supply Equipment Systems
140
—  Proposal 12-52
—  Has been renumbered and reorganized to provide a
logical sequence and arrangement
—  Clarification of cord-and-plug connected supply
equipment in 625.44
—  Allowance of automatic load management systems to
ensure service or source capacities are not exceeded
as in 625.12.
9/28/13
Copyright NECA 2013
Level 2
DC Fast Charge L2
Courtesy of Eaton
Corporation
Copyright NECA 2013
141
9/28/13
47
9/28/13
625.41 Rating
142
—  Former 625.14 has been revised and relocated to
625.41 based on approved TIA 11-3 (SC 11-10-5/TIA
1038).
—  A new last sentence that includes provisions for
automatic load management systems has been added
to 625.41.
—  The maximum EVSE load on a service and feeder
shall be the maximum load permitted by the
automatic load management system.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
143
Courtesy of EVSE
LLC
9/28/13
625.44 EVSE Connections
144
—  Proposal 12-52, Comment 12-31, TIA 1037
—  Subdivision (A) covers cord-connected 125-volt
electric vehicle supply equipment and (B) covers all
others.
—  The revision clarifies that Level 2 EVSE is permitted
to be direct wired or cord- and plug-connected in
accordance with 625.17(B)(1) through (4).
Copyright NECA 2013
9/28/13
48
9/28/13
Courtesy of Leviton Mfg. Co.
Copyright NECA 2013
145
9/28/13
690.12 Rapid Shutdown of
PV Systems on Buildings
146
—  Proposal 4-253, Comment 4-153
—  PV system circuits installed on or in buildings must include
a rapid shutdown function that controls specific conductors
in accordance with 690.12(A) through (D).
—  Controlled conductors shall be limited to no more than 30
volts and 240VA within 10 seconds of rapid shutdown.
—  Voltage and power measured between any two conductors
and between any conductor and ground.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
147
9/28/13
49
9/28/13
Article 690 Part X Electric Vehicle Charging
148
—  Proposal 4-331
—  A new Part X has been added to Article 690 and
covers electric vehicle charging by PV systems.
—  Part X includes general requirements and rules for
the charging equipment.
9/28/13
Copyright NECA 2013
Copyright NECA 2013
149
9/28/13
Article 694 Wind Electric Systems
150
—  Proposal 4-345, 4-346
—  Article 694 now applies to all wind electric systems.
—  Very few changes were necessary to adjust Article
694 to apply to all wind electric systems.
—  In concert with this 2014 change, UL has developed
new product standards (UL/ANSI 6141 and UL/
ANSI 6142) applicable to wind electric systems.
Copyright NECA 2013
9/28/13
50
9/28/13
Copyright NECA 2013
151
9/28/13
Special Conditions
152
CHAPTER 7
9/28/13
Copyright NECA 2013
700.8 Surge Protection
153
—  Proposal 13-98, Comment 13-69
—  Voltage surge protective devices (SPD’s) are required
to be installed for all switchboards and panelboards
of emergency systems.
—  These surge protection devices and products must be
listed.
Copyright NECA 2013
9/28/13
51
9/28/13
154
Copyright NECA 2013
Courtesy of Eaton Cooper Bussmann
9/28/13
700.12(F)(2)(3) Exception
155
—  Proposal 13-116
—  The exception permitting unit equipment supplied
by three or more normal circuits no longer permits
multiwire branch circuits to serve the area.
—  Prohibiting multiwire branch circuits in these
specific instances provides additional safety during
loss of normal lighting.
9/28/13
Copyright NECA 2013
© 2013 NJATC
Copyright NECA 2013
156
9/28/13
52
9/28/13
700.19 Multiwire Branch Circuits
157
—  Proposal 13-118
—  This new section titled “Multiwire Branch Circuits”,
restricts branch circuits for emergency power or
lighting from being part of a multiwire branch
circuit.
—  It reduces the possibility of loss of power to one or
more emergency circuit due to the simultaneous
disconnecting means provisions contained in
210.4(B).
9/28/13
Copyright NECA 2013
© 2013 NJATC
Copyright NECA 2013
158
9/28/13
Article 728 Fire Resistive Cable Systems
159
—  Proposal 3-170, Comments 3-79, 3-83a, 3-83b
—  New Article 728 Fire Restive Cable Systems provides
the necessary information required for the proper
installation of fire-rated cables.
—  Precise installation requirements for fire resistive
cables are critical component of egress and safety
during a fire.
Copyright NECA 2013
9/28/13
53
9/28/13
— 
Copyright NECA 2013
Courtesy of VITALink MC Cable by
RSCC Wire and Cable, LLC
160
9/28/13
Article 750 Energy Management Systems
161
—  Proposal 13-180
—  New article is titled “Energy Management Systems”
and includes definitions, requirements for alternate
power sources, load management provisions, and
field marking requirements.
—  Energy codes typically include performance
requirements for managing and conserving energy in
buildings or structures.
9/28/13
Copyright NECA 2013
Courtesy of Schneider Electric
Copyright NECA 2013
162
9/28/13
54
9/28/13
Annex J ADA Standards for
Accessible Design
163
—  Proposal 1-191a
—  New Annex J added to the NEC (informative annex)
—  Annex J addresses usability and provides
information about ADA electrical device mounting
heights and so forth
9/28/13
Copyright NECA 2013
Copyright NECA 2013
164
9/28/13
Summary
165
—  Significant changes have been accepted for the 2014
NEC
—  Obtain copies of the 2014 NEC and Reports on
Proposals (ROP) and Report on Comments (ROC)
from NFPA.
—  Significant Changes to the 2014 NEC textbook
available at NJATC.
Copyright NECA 2013
9/28/13
55
9/28/13
Significant Changes in the 2014 NEC®
166
MICHAEL J. JOHNSTON
EXECUTIVE DIRECTOR STANDARDS AND SAFETY – NECA
NEC CORRELATING COMMITTEE - NFPA
Copyright NECA 2013
9/28/13
56
Download