SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
16101
GENERAL
101.01
THIS SECTION INCLUDES SPECIFICATIONS FOR TYPES OF
MATERIAL.
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
K.
L.
M.
N.
O.
P.
101.02
Material (16102)
Area Classification (16103)
Raceways - Material (16110)
Raceways - Methods (16111)
Conductors - Material (16120)
Conductors - Methods (16121)
Boxes - Material (16130)
Boxes - Methods (16131)
Telephone Cabinets (16132)
Switches and Receptacles - Materials (16140)
Receptacles - Special Duty - Materials (16141)
Switches and Receptacles - Methods (16142)
Motors (16150)
Heating Equipment (16155)
Backboards (16160)
Equipment and Circuit Identification (16170)
INCORPORATED DOCUMENTS
Articles of the following sections shall apply:
A.
B.
C.
D.
E.
101.03
16001 - General Conditions
16002 - Codes and Standards
16003 - Drawings
16010 - General Provisions
Specific Documents Listed in Individual Sections
ENVIRONMENTAL CONDITIONS - OUTDOOR:
A.
Equipment listed for outdoor installation, under this Section 16100,
shall be capable of meeting the following:
1.
2.
3.
4.
5.
6.
16100-rev0
Elevation Above Sea Level
Outdoor Ambient Temperature
Outdoor Relative Humidity
Maximum Outdoor Daily
Temperature Range
Outdoor Air Conditions
Maximum Wind Velocity
16100 - 1
0-500 ft.
50 Deg. to 100 Deg. F
30% to 100%
20 Deg. to 120 Deg. F
No Salt
80 MPH
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
16102
16103
MATERIALS
102.01
Electrical material and equipment shall be new and shall bear the
inspection label of Underwriter's Laboratories, Inc., or shall show evidence
of approval by an acceptable independent testing laboratory, and shall
conform to the applicable specifications and standards of the Institute of
Electrical and Electronics Engineers (IEEE), American National Standards
Institute (ANSI), Joint Industry Committee (JIC), Insulated Power Cable
Engineers Association (IPCEA), National Electrical Manufacturer's
Association (NEMA), and National Fire Protection Association (NFPA).
102.02
Materials and workmanship are subject to approval by the Engineer. Any
portion of the work, which, in the judgment of the Engineer, is defective
shall be replaced by the Contractor as part of this contract, at no additional
cost to the Owner.
AREA CLASSIFICATION
103.01
Electrical equipment shall be applicable for the areas in which they are
installed. Special areas will be shown on the drawings.
103.02
The following NEMA-type devices shall be installed as described below:
A.
Indoor-Dry; NEMA 1 or 12; see drawings for detailed information.
B.
Indoor-Wet or Nonhazardous Dust; NEMA 4 or 4X.
C.
Outdoor; NEMA 3R, 4 or 4X; as indicated on the drawings.
D.
Hazardous gas or vapor producing areas - indoor; NEMA 7 (Class I,
Division I); groups as called for on the drawings, suitable for wet
locations.
F.
Hazardous dust areas - indoor; NEMA 9, (Class II, Division I); group as
called for on the drawings.
G. Hazardous dust areas - outdoor; NEMA 9, (Class II, Division I); group
as called for on the drawings, suitable for wet locations.
H.
103.03
16110
Air plenums and areas below raised floors require materials to be noncombustible. Cables shall be rated teflon or teflon jacketed. Liquid tight
conduit shall be rated for the use.
RACEWAYS - MATERIAL
110.01
16100-rev0
Equipment utilizing a water spray, oil, a non corrosive coolant, or
emitting a nonhazardous dust shall be equipped with NEMA 13
devices.
GENERAL
16100 - 2
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
Conduit and associated fittings shall meet the requirements of ANSI C80
Series.
110.02
110.03
110.04
16100-rev0
RIGID GALVANIZED STEEL CONDUIT:
A.
Conduit shall be Western or approved equal in standard 10'-0" lengths
with threads on both ends.
B.
Conduit shall be formed with continuous welded seams and shall have
an interior/exterior coating of protective metallic zinc at least .0008 inch
thick applied evenly over the surface.
C.
Conduit shall be UL listed. Use, installation , and construction shall
comply with Article 344 of the National Electrical Code.
D.
Wall thickness shall be uniform throughout.
E.
Fittings shall be threaded steel and engaged a minimum of five threads
of conduit.
F.
Elbows, nipples, couplings, and termination fittings shall be compatible
with the conduit.
RIGID STEEL INTERMEDIATE CONDUIT:
A.
Conduit shall be Western or equal. Use, installation , and construction
shall comply with Article 344 of the National Electrical Code.
B.
Conduit shall be UL listed. and conform to Article 345 of the National
Electrical Code.
C.
Conduit shall have same characteristics of rigid steel conduit, except
for thinner wall.
D.
Elbows, nipples, couplings, and termination fittings shall be compatible
with the conduit.
ELECTRICAL METALLIC TUBING (EMT):
A.
Tubing shall be Western or approved equal in standard 10'-0" lengths
of continuous welded seams with .0008 inch zinc coating inside and
out.
B.
Tubing shall be UL listed and conform to Article 348 of the National
Electrical Code.
C.
Wall thickness shall be uniform throughout.
D.
Joints or terminations shall be made with weather-tight compression
fittings, no other type fittings shall be used. Fittings shall meet the
16100 - 3
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
same requirements for finish and materials as EMT. The Fittings shall
be steel, compression ring-type, approved by the Underwriters'
Laboratories and listed as raintight. Fittings shall comply with ANSI
Specification C80.3, and Federal Specification WW-T-806. Set screw
fittings are not acceptable.
110.05
110.06
110.07
16100-rev0
RIGID ALUMINUM CONDUIT:
A.
Conduit shall be New Jersey Aluminum Company or approved equal.
B.
Conduit shall be UL listed and conform to Article 344 of the National
Electrical Code.
C.
Fittings shall be threaded aluminum and shall engage a minimum of
five threads on conduit.
D.
Conduit shall be threaded on both ends and have a uniform wall
thickness throughout.
E.
Elbows, nipples, couplings and termination fittings shall be compatible
with the conduit.
PLASTIC COATED RIGID STEEL CONDUIT:
A.
Coated conduit and fittings shall be the product of Ocal or approved
equal, with the coating applied under controlled factory conditions.
Coated material shall be installed and patched according to the
manufacturer's recommendations.
B.
Conduit, prior to coating, shall conform to American National
Standards Institute Specification C80.1.
C.
Stainless steel screws shall be furnished and used to attach the cover
to the conduit body.
FLEXIBLE METAL CONDUIT- FMC (STEEL OF ALUMINUM):
A.
Conduit shall be as manufactured by All-Flex Corporation or approved
equal.
B.
Conduit shall be UL listed and conform to Article 348 of the National
Electrical Code.
C.
Fittings shall be die-cast.
D.
Conduit shall have uniform diameter throughout.
16100 - 4
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
110.08
110.09
110.10
110.11
LIQUIDTIGHT FLEXIBLE METAL CONDUIT (LFMC):
A.
Conduit shall be Sealtight or equal.
B.
Conduit shall be listed by UL and shall conform to Article 350 of the
National Electrical Code.
C.
Fittings shall be liquidtight at terminations.
D.
When used under raised floor areas or in air plenum spaces, shall be
of a type suitable for the use and high temperature rated, 105 Degrees
C minimum.
NONMETALLIC CONDUIT (SCHEDULE 40 OR SCHEDULE 80)
A.
Conduit shall be Carlon PV Duit, 90 Degrees C UL rated or approved
equal.
B.
Conduit shall be composed of polyvinyl chloride.
C.
Conduit shall be UL listed. Use, installation , and construction shall
comply with Article 362 of the National Electrical Code.
D.
Materials must have a tensile strength of 7,000 psi at 73.4 Degrees F,
flexural strength of 11,000 psi, and compressive strength of 8,600 psi
or greater.
E.
Joints shall be solvent welded, as recommended by manufacturer.
NONMETALLIC DUCT (TYPE EB):
A.
Duct shall be Carlon PVC Type EB for concrete encasement or
approved equal.
B.
Duct shall be listed by UL and shall conform to NEMA Standard TC 6.
C.
Duct shall be manufactured from PVC compound consisting of at least
75% virgin PVC Monopolymer, not more than 20% inert additives and
not more then 3% processing additives.
D.
Materials must have a tensile strength of 6,000 psi, modules of
elasticity in tension of 500,000 and flexural strength of 11,000 psi.
E.
Joints shall be solvent welded, as recommended by manufacturer.
WIREWAY
A.
16100-rev0
Wireways shall be of lay in-type construction without knockouts in the
sides or bottom.
16100 - 5
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
110.12
B.
Wireways shall be listed by UL and shall conform to Article 362 of the
National Electrical Code.
C.
Wireways shall be of NEMA-type and size as indicated on the
drawings.
D.
Wireways shall be installed using manufacturer's recommended
hardware, unless otherwise shown on the drawings.
CABLE TRAY:
A.
Continuous rigid cable support system for power cables shall be
Husky-Burndy, ladder-type construction. Substitutions shall have
written approval from the Owner.
B.
Continuous rigid cable support system for telephone signal and control
cable shall be Husky-Burndy, trough-type construction. Substitutions
shall have written approval from the Owner.
C.
Ladders and troughs shall be galvanized steel, manufactured and
tested in compliance with currently published NEMA Cable Tray
Standard VE-1.
D.
Trough section bottoms shall be of one-piece construction with integral
cross rungs on approximately 1" centers and shall have dividers.
E.
Ladder sections shall consist of 2 longitudinal side members
connected by individual rungs spaced on 18 inch centers.
F.
Straight sections shall be capable of supporting a minimum uniform
load of 35 lbs. per lineal foot in a 12'-0" simple span between supports,
where connectors are located within ¼ point of the span of the tray.
Load safety factor shall not be less than 1.5.
G. The fittings shall be capable of supporting the same design load as
straight sections when fittings are supported to minimum standards
outlined in NEMA Standard VE-1 on ventilated cable tray, but with no
span between supports exceeding that used for adjacent straight
sections. Short time total loads on straight sections or fittings shall not
exceed design load by more than one-third.
16100-rev0
H.
The Cable Tray shall have an inside width as indicated on Drawings,
with 3" clear inside depth.
I.
Fittings, both vertical and horizontal, shall have 8" minimum radius for
troughs and 12" for ladders.
16100 - 6
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
J.
110.13
110.14
16100-rev0
Supports shall be in conformance with NEMA Standards and
recommendations. Supports shall be capable of carrying required
cable loads plus tray weight and any additional short time total loads
not to exceed the design loads by more than one-third. On vertical tray
runs, cable shall be held against thrust by supports external to tray.
SURFACE RACEWAY:
A.
Surface metal raceways, junction boxes, elbows, extension boxes, and
fittings for use in office areas subject to abuse by carts, forklifts, or
vehicle traffic, rigid aluminum conduit shall be used.
B.
Floor mounted surface metal raceways, junction boxes, and fittings
shall be Wiremold Series 1500 "Pancake." Duplex 15A, 125-Volt
outlets for this series shall consist of Wiremold No. 1546B boxes, with
Hubbell #5262 receptacles in office area applications. Power poles or
conduit drops to benches should be used unless the drops or poles
would interfere with the operation of the room.
C.
Multi-outlet raceway assemblies shall be Wiremold 3000, arranged as
shown on the drawings.
UNDERFLOOR RACEWAY:
A.
Underfloor raceway shall be "Walkerduct". Substitutions receive shall
have written approval from the Owner.
B.
Underfloor ducts shall be steel, dual system-type raceway, providing
minimum capacities of 3 sq. in. (19cm(2)) and 8.5 sq. in. (55cm(2)) for
convenience outlets and telephone service, respectively. Duct spacing
should not exceed 6' (1.8m) on centers. Duct systems shall be
interconnected with a system of trench headers, terminating in
electrical or telephone closets. Header entries into telephone closets
or terminal cabinets shall provide at least 1 sq. in. of raceway per 100
sq. ft. (9.3m(2)) of net productive area.
C.
Ducts may be as described above or may be an electrified cellular
system. Header ducts or trenches as described above shall be
included.
D.
Splices and taps shall be made in approved junction boxes.
E.
Loop wiring (continuous unbroken) conductor connecting individual
receptacles shall not be permitted.
F.
The circuit conductors supplying the outlet shall be removed from the
raceway when an outlet is removed.
16100 - 7
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
16111
RACEWAYS - METHODS
111.01
GENERAL:
A.
The Contractor shall install items in their proper locations as shown on
the Contract Drawings, rigid and secure, plumb and level, and in true
alignment with related and adjoining work.
B.
Seismic Design Requirements
1.
Items covered in this section shall be seismically braced as
specified in Section 16001.1.12.
C.
The Contractor shall provide templates, layout drawings, and
supervision at the job site to ensure correct placing of anchorage items
in concrete. Check embedded items for correctness of location and
detail before concrete is placed. Anchoring of equipment and
associated support(s) shall be capable of withstanding a seismic
disturbance of 0.5 g. in any direction without damage to equipment.
D.
The Contractor shall control the installation so as not to impair the
strength, safety, serviceability, or appearance of any work, determine
exact location of conduit and route all conduit parallel to building lines.
E.
The trade size, type, and general routing and location of conduit
raceways and boxes shall be installed as shown on the Contract
Drawings.
F.
The Contractor shall install individual conductors, conduits in
raceways, ducts, and trenches as shown on the Contract Drawings.
G. The Contractor shall install switches, receptacles, special purpose
outlets, and cover plates in a neat manner, as shown on drawings.
16100-rev0
H.
Provide an insulated ground wire in all raceways.
I.
Hazardous Areas
1.
Conduit, flexible conduit, fittings, junction and/or terminal boxes,
connectors, and flexible cords shall be listed for the area
described on the drawings.
2.
Such arcing devices as pushbuttons, pilot lights, limit switches,
and other equipment, shall be either factory sealed or the conduit
shall be sealed per the requirements of the National Electrical
Code.
3.
Conduit entering or leaving the hazardous area shall be sealed on
either side of the boundary walls per the requirements of the
National Electrical Code.
16100 - 8
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
4.
111.02
Seals shall not be poured until wiring is pulled and conductors
have been tested for proper function.
RACEWAY CONDUIT - GENERAL:
Wiring for circuits over 24 Volts shall be run in conduit. Conduit sizes shall
conform to the drawings and to applicable electrical codes. Conduits shall
be installed concealed, wherever possible, and shall be parallel to building
lines. There shall be no cutting across or diagonal runs. Condulets
Conduit fittings or pull boxes shall be installed when structural obstructions
are encountered. All conduit and fittings for power, control instrumentation
and lighting circuits, and in exposed installations shall be hot-dipped
galvanized rigid steel with threaded fittings except for underground/ liquid
tight flexible conduit installations or as noted. In corrosive area
installations, hot-dipped galvanized steel conduits with PVC coating shall
be used.
A.
Rigid Galvanized Steel Conduit:
Shall be used in outdoor areas exposed to weather or vehicle traffic,
concrete slabs or walls, vertical drops over 10', under raised floors, in
hazardous classified areas, for penetration through concrete floors or
foundations, unless otherwise noted on the drawings. Rigid steel
elbows shall be used where underground feeders enter panel boards,
junction or device boxes. Expansion joints shall be used where
required. Conduit in contact with the earth shall be protected by
Scotchwrap 10 mil tape applied in double thickness using ½ lap turns.
Conduits shall not be installed at a radius smaller than recommended
by NEC the National Electrical Code. Conduits carrying conductors
above 600 volts shall be painted yellow, with an identifying marker at
10' intervals indicating the voltage level and feeder designation.
B.
Rigid Steel Intermediate Conduit:
May be used in lieu of rigid steel conduit in all above ground area
installations where steel conduit in permitted, except for wire
conductors over 600 volts, but only if specified.
C.
Electrical Metallic Tubing (EMT):
Electric metallic tube (EMT) shall be used for 2" or smaller in indoors
locations in the administration building, laboratory building, and the
office areas of the shops and warehouse building only, 3/4" minimum
size for home runs. Couplings shall be of the steel compression type.
D.
Rigid Aluminum Conduit:
May be used in lieu of rigid steel in interior dry locations. It shall not be
used under the ground floor slab in concrete or in earth.
E.
16100-rev0
Plastic-Coated Rigid Steel Conduit
16100 - 9
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
F.
1.
Plastic-coated, rigid steel conduit and fittings shall be installed in
highly corrosive areas indoors or outdoors, as shown on the
drawings.
2.
The Contractor shall patch any damaged coating according to the
manufacturer's instructions and to the satisfaction of the Engineer.
Flexible Metal Conduit, Steel or Aluminum:
1.
Shall be used in dry locations for recessed lighting fixtures only,
unless otherwise noted on the drawings.
2.
The Contractor shall provide a green insulated ground wire in all
flexible metal conduit.
G. Liquid Tight Flexible Metal Conduit:
H.
1.
Shall be used for conduit connections for motors, transformers or
in areas of movement which are subject to moisture or oil.
2.
Provide a green insulated ground wire in all liquidtight flexible
metal conduit.
Nonmetallic Conduit (Schedule 40):
Shall be used for all power, signal feeders and branch circuits below
the ground floor slab or in earth, unless otherwise noted on the
drawings. Conduits below grade must be converted to rigid steel
wrapped with 10 mil tape, applied in double thickness using ½ lap
turns. Conduits shall contain a continuous grounding conductor as
designated in the National Electrical Code. Conduits shall be buried in
earth a minimum of 24".
111.03
16100-rev0
CONDUIT INSTALLATION:
A.
Conduits shall be concealed in the walls or ceilings, unless otherwise
noted on the drawings. Conduits in basement areas and conduits to
surface mounted equipment in unfinished areas shall be exposed.
Conduits shall be parallel to the building lines.
B.
Changes in direction of exposed conduits shall be made with conduit
fittings or long radius bends. Conduit shall be supported by pipe
hangers, U-bolts, or "Unistrut" framing channel and straps. As a
minimum, conduit shall be supported per the requirements of the
National Electrical Code.
C.
Jetline, Cat. No. 232, polyolefin pull line shall be installed in any empty
conduits; readily accessible for future use.
16100 - 10
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
D.
Roof penetrations shall be sealed and finished by a licensed roofing
contractor.
E.
Provide redwood sleepers for conduit runs exposed on any roof.
F.
Threads on conduits and fittings shall be lubricated with a conducting
and sealing compound approved by the field representative.
G. Conduit shall be kept a minimum of 6 inches away from any hot water
pipe, air duct, or any surface above 125 Degrees F.
H.
Conduits may be banked together, using Unistrut (or Equal) to obtain
the beam effect for intermediate support or long spans.
I.
Conduit joints shall be made up tight and conduit unions shall be used
wherever necessary. No running threads shall be permitted.
J.
Liquidtight, flexible conduit shall be used when flexible connections are
required. (Metallic, flexible conduit shall be used in dry locations for
recessed lighting fixtures).
K.
Installed conduits shall be temporarily plugged or otherwise protected,
during construction, from the entrance of moisture and debris. Any
conduit damaged, through neglect, shall be replaced by the Contractor
without additional expense to the Owner. No kinked, clogged or
deformed raceways will be permitted.
L.
Open knockouts or holes in boxes shall be plugged with suitable
blanking devices. Boxes shall be cleared of debris before either the
installation of any wiring devices, or before the installation of cover
plates.
M. The locations of boxes and fittings shall be in accordance with good
installation practice, making them readily accessible for maintenance.
Fittings with gasketed covers shall be installed with covers on the side
or bottom.
N.
Rigid conduit, terminating in a cabinet or a pressed steel box, shall
have locknuts and an insulating type bushing.
O. Horizontal conduit runs outdoors with an elevation change greater than
five (5) feet shall have a drain.
P.
Vents and drains shall be thoroughly cleaned to ensure proper
operation.
Q. The entire conduit system shall be fished, snaked, and cleaned before
pulling in wires or cables.
16100-rev0
16100 - 11
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
R.
111.04
Electrical conduit shall not be installed on top, within or directly
beneath roof decks. Special hangers shall be installed to suspend
conduit below the roof deck so mechanical fasteners do not penetrate
the conduit.
PULL BOXES:
Pull boxes shall be used to facilitate the pulling of wire and cable to ensure
manufacturer's recommended pulling tensions and bending radii are not
exceeded. Pull boxes shall be sized according to the National Electrical
Code requirements, furnished with screw covers and accessible when the
work is completed. The installation of a pull box in a public space, open to
view, shall have prior approval by the Owner.
111.05
CONDUIT SUPPORT SYSTEMS:
A.
Conduits shall be rigidly supported so as to prevent excessive vibration
or deflection.
B.
Conduit and conduit fittings shall not be welded to any structure.
C.
Conduits shall be spaced so that conduit fittings are accessible for
pulling or splicing.
D.
Conduit supports shall be used to support conduits only. Conduit
supports shall use Framing Channel clamped to building steel where
feasible. No roof or roof pan penetrations are permitted for conduit
supports. Refer to Appendices "H" and "J" for details.
E.
Supports of approved design shall be used in vertical runs of conduit
as required by the National Electrical Code.
F.
Necessary supports for proper installation of all electrical equipment,
raceways and cables shall be fabricated and installed in a neat and
workman-like manner, and care shall be taken that at no time shall any
portion of the building be overloaded. Building steel shall not be drilled
or cut.
Should the building structure or installation by any other contractor
sustain damage through failure of this Contractor to properly support
and install the electrical equipment, this Contractor shall bear all costs
involved in repairing or replacing such installation. No welding will be
permitted to any structure, piping, machinery, or equipment for
mounting or support of electrical items unless specifically indicated on
the drawings.
G. Steel structures exposed to the weather shall be galvanized after all
cutting, drilling and/or welding is done. Shop connections shall be
bolted on outdoor structures. Where field cutting or drilling of
galvanized steel is necessary, the Contractor shall apply one coat of
priming paint and one finish coat of aluminum or oil paint.
16100-rev0
16100 - 12
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
111.06
16120
RACEWAYS - WIREWAY:
A.
Wireway shall be suspended above the floor, or from the ceiling, at
elevations as indicated on the drawings.
B.
Wireway shall be securely supported at intervals not exceeding 5 feet,
unless approved for greater lengths, but in no case shall these
intervals exceed 10 feet.
C.
Installation of wireways shall conform to the National Electrical Code
D.
Installation of conductors in wireway shall be as shown on the
drawings, but under no circumstances shall exceed the limits of the
National Electrical Code, Article 362, Paragraphs 4, 5, 6 and 7.
CONDUCTORS - MATERIAL
120.01
MEDIUM VOLTAGE CABLE - 5KV AND 15KV:
A.
General
1.
Scope:
a. This specification covers the requirements for single
conductor, medium voltage cables used for 5KV and 15KV
solidly grounded neutral systems. Cable shall be
manufactured by Kerite, Okonite, or approved equal, and shall
have copper conductors and EPR insulation.
b. This specification shall be used to supplement all local, state,
and national codes, laws, and regulations dealing with such
materials and occupational safety and health. The more
stringent requirement shall govern in cases of regulatory
conflict.
B.
Cable Design
1.
General Requirements:
a. The cable shall comply with all applicable requirements of the
latest Insulated Power Cable Engineers' Association (IPCEA)
standards and the applicable sections of the latest issues of
the Association of Edison Illuminating Companies (AEIC)
publications, except as modified by this specification.
b. The cable shall be suitable for use in wet and dry locations
and in nonmetallic or metallic conduits. Insulation level shall be
133%.
16100-rev0
16100 - 13
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
c. The cable shall be able to operate continuously at 105
Degrees C conductor temperature; it shall have an emergency
rating of 140 Degrees C and a short circuit rating of 250
Degrees C.
d. Materials covered by this specification shall be subject to
inspection by HGST. HGST's representative shall have
access to the area where the cable is being manufactured and
stored.
e. An extruded semiconducting insulation screen shall be
vulcanized to the insulation. Minimum average thickness shall
not be less than 30 mils. The insulation screen shall be
surface-printed:
"Semi-conducting
Remove when splicing and terminating."
f.
Metallic Shielding System: A 5 mil bare or tinned copper tape
with a minimum overlap of 12.5% shall be applied over the
insulation screen. In addition, #20 AWG bare solid copper
wires per ASTM B3, each applied spirally with a layer of 8
times the core diameter, shall be applied over the copper
shield. Provide a lapped nonmetallic tape over the shielding
wires. Minimum jacket thickness required is shown below.
Cable Size
4/0 AWG
250 kcmil
350 kcmil
500 kcmil
750 kcmil
1000 kcmil
Jacket Thickness mils
14
16
17
18
20
22
g. Jacket: A protective extruded polyvinyl chloride jacket (black)
shall be applied over the shielding system. The following
average thickness shall be provided:
Cable Size
Up to 500
750 to 1000
Jacket Thickness
(mils)
80
110
Minimum thickness shall not be less than 80% of the average
thickness.
The voltage class, type of insulation, conductor size, and date
of manufacturing shall be printed on the jacket.
16100-rev0
16100 - 14
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
C.
Factory Tests
1.
General Requirements:
a. HGST's representative shall be notified of any final factory test
dates one week prior to tests. All final factory tests will be
witnessed by an HGST representative unless otherwise
directed. All cable shall be subject to factory tests made in
accordance with IPCEA standard procedures as specified in
IPCEA publication Nos. S-68-516 latest edition, except for the
corona level test apparatus and procedures which shall be in
accordance with AEIC publication 6-75, unless specifically
waived in the contract document.
b. Six (6) certified sets of factory test results shall be submitted to
HGST representative prior to shipment of cable.
2.
Specific Tests:
The following factory tests shall be performed. The results shall
meet or exceed the values listed here or shown in the reference
IPCEA and AEIC tables.
a. Conductor Resistance - The conductor resistance, corrected to
25 Degrees C, shall be less than the maximum value shown in
S-68-516.
b. AC High Voltage Test (entire reel) - The cable shall withstand
the following voltages for a minimum of five minutes:
5KV cable
15KV cable
---- 16,000 Volts, AC
---- 33,000 Volts, AC
c. DC High Voltage Test (entire reel) - The cable shall withstand
the following voltages for a minimum of fifteen minutes:
5KV cable
15KV cable
---- 45,000 Volts, DC
---- 80,000 Volts, DC
d. Corona Level Test (entire reel) - The corona discharge level
for EP insulated cables shall comply with AEIC requirements.
e. Insulation Resistance shall be measured and recorded in
megohms per 1,000 feet and when corrected to 60 Degrees F,
per IPCEA 68-516, paragraph 6.28, the Specific Insulation
Resistance (SIR) shall not be less than 50,000 ohms.
16100-rev0
16100 - 15
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
f.
Physical and Electrical Testing of Material Samples
1)
Physical Dissection:
A short sample shall be taken from each end of each
shipping length (one sample will suffice at cutting points in
a master reel) and shall be checked for (a) dimensional
compliance, and (b) quality of cable components.
2)
Insulation - Physical/Electrical Requirements: Die cut
specimens shall be taken from the cable insulation.
Insulation material shall meet requirements of attached
Table "A" this section.
3)
Semiconductive Screen:
Resistivity
The resistance of the semi-conductive screen material
shall be measured as specified in AEIC Publication No. 675 the volume resistivity shall be less than 50,000 ohmcm at 90 Degrees C. Material shall be taken from the
above samples.
Adhesion
On the same samples, the pounds of adhesion between
the outer semi-conductive screen and the insulation shall
be determined. A one-half inch wide strip of
insulation/semiconductor shall be tested. Adhesion shall
be between 4 and 18 pounds, when tested per AEIC
No. 6-75.
Physical Property
The compound shall have a minimum elongation after an
air oven test at 121 Degrees F for 168 hours of 100% and
a brittleness temperature not warmer than minus 30
Degrees C.
4)
16100-rev0
Jacket - Physical/Electrical Requirements: Specimens
shall be taken from the cable jacket. Jacket material shall
meet requirements of Table "B" this section.
16100 - 16
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
D.
Final Preparation
1.
Pulling Eyes:
Individual pulling eyes shall be installed on single or triplex
conductor lengths of cable, after completion of the factory tests.
Pulling eyes shall be suitable for maximum allowable pulling
tension on the conductors, and shall be sealed against entrance of
water.
2.
Protection:
Cable shall be adequately protected to prevent: (1) physical
damage, and (2) entry of water and other foreign matter during
shipment and outdoor storage. Cable ends shall be effectively
moisture sealed with heat shrinkable plastic end seals.
E.
Guarantee-Warranty
1.
Guarantee:
The manufacturer shall guarantee that: (a) the material used, and
(b) the construction of the cable is in accordance with this
specification. Refer to Tables A and B for detail.
TABLE A
The insulation samples shall meet the following values:
Unaged Physical Properties
Tensile Strength, Minimum PSI at Room Temp.
Elongation, Minimum % at Room Temp.
200% Modulus, Minimum PSI at Room Temp.
100% Modulus, Minimum PSI at 130 Degrees C
Aged Physical Properties
After Air Oven Tests for 168 Hours at 150 Degrees C
Tensile Strength Minimum % of Unaged
Elongation, Minimum % of Unaged
Electrical Properties
At Room Temperature (15.6 Degrees C), Dielectric Constant Specific
Inductive Capacity (SIC):
Maximum at 80V/mil
Power Factory, PF % at 80V/mil, Maximum
Insulation Resistance Constant (K) Minimum
Electrical Properties at 90 Degrees C
After 24 Hours Water Immersion, at 90 Degrees C:
Dielectric Constant, SIC at 80V/mil, Maximum
Power Factor, PF % at 80V/mil, Maximum
Stability Factor, (PF at 80-40V/mil), Maximum
After 26 Weeks Water Immersion at 90 Degrees C
Dielectric Constant, SIC, at 80V/mil, Maximum
16100-rev0
16100 - 17
Ethylene
Propylene
90
250
600
200
75
60
3.0
2.0
50,000
3.0
1.5
0.2
3.1
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
TABLE A
The insulation samples shall meet the following values:
Power Factor, PF % at 80V/mil, Maximum
Stability Factor, (PF at 80-40V/mil, Maximum
Moisture Resistance
Mechanical Moisture Absorption After 7 Days in 70 Degrees C:
Water Maximum mg/sq. in
Cold Blend
No Cracks at Temp. Degrees C (Insulation, Not Jacket)
Hot Modules
Deformation Resistance:
After Air Oven Temp. Degrees C
At Elongation %
Conditioning Period Minimum
Minimum psi
Heat Distortion
Maximum % (Buffed Samples of Insulation Taken in Close Proximity to Conductor
Screen
TABLE B
The jacket samples shall meet the following requirements:
Unaged Physical Properties
Tensile Strength, Minimum PSI
Elongation, Minimum %
Aged Physical Properties
After Air Oven Test:
Temperature Degrees C
Days
Elongation - Minimum % of Unaged
After Oil Immersion at 70% for 4 Hours:
Tensile Strength, Minimum % of Unaged
Elongation, Minimum % of Unaged
Heat Distortion at 121 Degrees C Maximum %
Heat Shock After 1 Hour at 121 Degrees C
Cold Bend After 20 Hours at - 35 Degrees C
120.02
16100-rev0
1.5
0.2
5
Polyvinyl
Chloride
-40
130
100
15
200
5
Polyvinyl
Chloride
1500
100
100
6
75
80
60
50
No Cracks
No Cracks
WIRE (600V INSULATION)
A.
Wire shall be UL listed and conform to the National Electrical Code
Section 310.
B.
Wire from Size #10 and smaller shall be stranded copper, with THWN
insulation, except as otherwise noted.
C.
Wire from Size #8 and larger shall be stranded copper, with THW
insulation, except as otherwise noted.
D.
Wire for motor control circuits shall be #14 stranded, with MTW
insulation for interconnections inside enclosures. Where control wiring
is run in conduit, use THWN insulation.
16100 - 18
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
120.03
120.04
E.
Wire in high temperature areas and in lighting fixtures shall be solid
copper with THWN insulation.
F.
Manufacturer's name, insulation type, and voltage rating shall be
permanently marked at regular intervals on all wire.
WIRE - LOW VOLTAGE:
A.
Low voltage wire shall be Belden.
B.
Size and type shall be as indicated on the drawings
WIRE CONNECTORS/TERMINATIONS
A.
Connections for #8 and smaller wire shall be with spring steel
connectors, UL listed, as manufactured by 3M.
B.
Connections for #6 and larger wire shall be compression-type, UL
listed, as manufactured by T&B, Burndy, or AMP.
C.
Uninsulated joints shall be insulated with Scotchfill and double wrap of
Scotch 33+ tape, as manufactured by 3M Company.
D.
Terminal lugs shall be UL listed. Crimp lugs shall be applied with the
manufacturer's recommended tools only. Mechanical lugs shall be
torqued to the recommended torque.
Lugs shall be used for one conductor only unless UL listed and
identified otherwise. Lugs shall only be stacked if designed and listed
for the application.
120.05
E.
All lugs shall be ring tongue.
F.
Belleville-type compression washers shall be used when the ambient
temperature exceeds 30 Degrees C. They shall be T&B catalog Series
60800, or equal.
COLOR CODING:
A.
Color coding of branch circuit conductors shall be in accordance with
the Nation Electrical Code requirements and shall be coded as follows:
208Y/120-Volt Circuits
White or Natural Gray
Neutral
Black
Phase A
Red
Phase B
Blue
Phase C
Green
Equipment Ground
16100-rev0
16100 - 19
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
480Y/277-Volt Circuits
White or Natural Gray
Neutral
Brown
Phase A
Yellow
Phase B
Purple
Phase C
Green
Equipment Ground
Control Wires
#1 Red for AC controls
#3 Blue for DC controls
16100-rev0
B.
Wire in Sizes not available in colors shall have colored tape of the
appropriate color wrapped around them at areas where accessible.
C.
Color codes shall be maintained from wire origin to final destination for
a given phase, including where wires pass through wiring devices.
D.
Color coding of branch circuit conductors for 240/120-Volt delta circuits
shall be as follows (non approved or plant site, included for reference
only):
240/120-Volt Circuits
White or Natural Gray
Neutral
Black
Phase A
Red
Phase B
Orange
Phase C
Green
Equipment Ground
16100 - 20
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
120.06
TAGGING AND IDENTIFICATION:
A.
All feeders, mains, and special circuits shall be tagged in pull box or
panels in which they connect by means of non conductive, permanent
tags.
B.
All conductors in panels, starters, pushbuttons, motors, junction boxes,
lighting, branch circuits shall be identified by tagging with Brady Labels
or equal.
.
16121
CONDUCTORS - INSTALLATIONS and METHODS
121.01
INSTALLATION - MEDIUM VOLTAGE CABLE, 5KV AND 15KV:
A.
The Contractor shall make use of field engineering services furnished
by the cable manufacturer.
B.
Cable shall be installed with a minimum number of splices. Proposed
splice locations shall be submitted to HGST's representative for
approval.
C.
The Contractor shall determine the cutting lengths, reel arrangements,
and total lengths of cable required and shall furnish this data to the
cable manufacturer prior to the required shipment date of cable.
D
Manufacturer’s recommended pulling tension and bending radius
requirements shall not be exceeded.
E.
Cable pulling lubricant shall be approved by the cable manufacturer.
The entire conduit system shall be fished, snaked, and cleaned with
donut type brush before pulling in wires or cables.
F.
Special attention shall be given to prevent moisture from entering the
cable during pulling; after cutting in manholes and during storage of cut
cables on reels. Cable shall be sealed immediately after cutting by
means of heat shrinkable plastic end seals.
G. The cables shall be positively identified prior to splicing and
terminating.
16100-rev0
H.
Splicing and terminating work shall be performed by electricians having
at least three years experience in this type of work. The name of these
splicers and their experience shall be submitted to the Engineer for
approval.
I.
The work area shall be kept warm, dry and ventilated, during splicing
and terminating of cables.
16100 - 21
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
J.
Material and/or splicing and terminating kits shall be as recommended
by the cable manufacturer, supplying the cable. A submittal of
materials shall be provided to HGST and approved prior to the actual
work.
K.
Cables shall be spliced and terminated in accordance with the cable
manufacturer's drawings or the kit supplier's drawings.
L.
Compression sleeves which excessively deform or otherwise damage
the conductor shall not be used. Sleeves recommended by the cable
manufacturer shall be used.
M. Terminal connections shall be insulated as follows:
N.
1.
Completely fill in voids and cover terminal lugs to eliminate sharp
edges with Scotchfill electrical insulation putty.
2.
Apply a minimum of 7 layers of Scotch Tape #23, with a minimum
overlap of 50%.
3.
Finish with a minimum of 3 layers of Scotch Tape #33, each with
an overlap of 50%
Cables shall be phased prior to terminating and identified as follows:
1.
Black plastic nameplates, with white engraved letters, shall be
installed on each pull, splice, and terminating point. These
nameplates shall show the phase, feeder designation and the date
when the splice or termination was made. The feeder designation
shall be as indicated on the drawings. Nameplates shall be tied
on each cable with nylon cord.
O. Exposed sections of new medium voltage cable installed on racks in
manholes and switchgear vaults shall be fireproofed by wrapping with
one half-lapped layer of Minnesota Mining and Manufacturing Co., or
equal, #770 Irvington Brand arc-proofing tape and random wrapped
with #27 glass cloth having pressure-sensitive adhesive.
16100-rev0
16100 - 22
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
121.02
FIELD TESTING - MEDIUM VOLTAGE CABLE, 5KV & 15KV:
A.
B.
General Requirements
1.
New cables shall be tested prior to connections to equipment after
terminations and splices have been made.
2.
A DC high potential test has specified herein shall be made on
each new cable using test voltages equal to 80% of the final
factory DC test. Potential testing shall be performed in the
presence of HGST's representative. The field potential test shall
not be applied to potential transformers, switchgear, transformers,
lightning arresters, or other equipment connected to the cable
system. The entire cable, when splicing is completed, shall be
tested at a test voltage to be determined by HGST's
representative. Disconnect cables to be tested at the first point of
termination, prior to any testing.
3.
Any defective cable furnished and installed by the Contractor shall
be replaced by the Contractor at no cost to HGST.
Preparatory Step:
1.
2.
Both ends of the cable shall be disconnected and free of all
equipment. Adequate safety precautions shall be taken so that
personnel cannot come into contact with either end during testing.
Each cable shall be given a continuity test and identified with
phase designation (A, B, C).
3.
The cable ends opposite to the end on which the test set is going
to be connected shall be completely sealed to prevent corona
from forming at sharp ends of cable. (Wrap completely, tightly
and without voids with "Scotch" Brand No. 23 Electrical Tape.
4.
Shields shall be grounded to a common ground bus.
5.
Connect high voltage lead of test set to the cable being tested and
seal the connection to prevent corona from forming.
6.
Cables not being tested shall be grounded to the same common
ground as the shields.
7.
Connect and set up the controls of the Hi-Pot tester as
recommended by the test set manufacturer.
8.
Make final safety check.
a) Cable ends supported securely and hanging free of
equipment.
b) Ends are guarded and protected.
16100-rev0
16100 - 23
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
c) Grounds are secure.
C.
Test Voltage:
Initial Acceptance Test Voltage (DC)
a) 5KV cable initial test voltage shall be 36KV.
b) 15KV cable initial test voltage shall be 64KV.
c) If initial acceptance test is unsatisfactory, subsequent tests
shall be performed at HGST's direction.
D.
Test Procedure:
1.
A minimum of eight (8) steps should be considered to make a
good graph.
2.
Raise test voltage to first step slowly.
a) There should be an initial charging which indicates that test set
is properly connected. If there is a ground on the system, a
high current will flow immediately and possibly the overload
relay of the test set will open.
b) Hold test voltage on initial step until current reading has
dropped to the constant value. Record the time this takes on
the test form. This decay time should be approximately the
same for all test steps and should not exceed 30 seconds.
3.
Raise test voltage slowly to start the second step.
a) Repeat Step D2b above; leave test voltage on for same period
of time as for previous step.
b) Start plotting voltage versus leakage current on graph paper.
NOTE: If curve indicates a definite knee in curve, discontinue
any further testing. Find and correct fault and consult with
HGST's representative on further testing.
4.
Raise test voltage slowly to the next step; continue the increase in
accordance with the predetermined steps until maximum test
voltage is reached. Record the stable leakage current at each
step ad at the maximum test voltage at tie zero. Record and
interpolate readings.
5.
Leave test voltage on for five minutes.
a) Record and plot reading at end of 15 seconds.
16100-rev0
16100 - 24
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
b) Record and plot reading at end of 30 seconds.
c) Record and plot reading at end of first minute, and every
subsequent minute until the fifth minute is reached. If a
questionable test is indicated, stop and correct fault. Consult
with HGST's representative on further testing.
6.
Reduce and remove test voltage from cable.
a) DO NOT ground cable until voltage has reduced to less than
3,000 volts.
b) Ground cable: The cable must be grounded for a sufficient
time to ensure complete discharge.
c) Remove high voltage test leads.
NOTE: The total time for the direct current voltage test shall
not exceed 15 minutes.
7.
E.
Repeat test steps for other cables.
Test Report:
Six (6) copies of complete test reports shall be forwarded to HGST's
representative upon completion of the tests. Test reports shall show
date of tests, circuit numbers, test voltages and leakage currents
measured.
121.03
16100-rev0
INSTALLATION - 600-VOLT WIRE AND CABLE:
A.
Conduit and wireways shall be installed and thoroughly cleaned and
dried prior to pulling wires. The maximum number of conductors in a
conduit shall not exceed the values as allowed in the National
Electrical Code.
B.
Wires and cables shall be pulled into their conduits by application of
commercial pulling compounds. Pulling distance of wire and cable
shall generally not exceed the equivalent of 200 feet of straight run or
contain more than the equivalent of four 90 degree bends.
Manufacturer's recommended pulling tensions and bending radii shall
not be exceeded. Sufficient wire shall be left at outlets for connecting
fixtures and wiring devices. When conduit bodies are equipped with
lugs for possible future extensions, sufficient wire loop shall be left for
this purpose.
C.
Conductors shall be continuous from outlet and no splices or joints will
be permitted in either feeders or branches, except at outlets or
accessible junction boxes, as indicated on the drawings.
16100 - 25
December 2004
SECTION 16100
ELECTRICAL - MATERIAL AND METHODS
D.
Conductors shall be colored coded as specified below. The color
coding assigned to each phase wire shall be consistently followed
throughout the entire job.
E.
Tagging and Identification
F.
1.
Feeders, mains and special circuits shall be identified in
equipment in which they are terminated by means of
nonconductive, permanent tags.
2.
Conductors in panels, starters, pushbuttons, motors termination
enclosures and junction boxes along with lighting and branch
circuit conductors shall be identified by tagging with Brady Labels
or equal.
3.
Terminal blocks requiring numbers shall be identified by the
Contractor with the designations shown on the wiring diagram in
permanent type (not pencil or ink pen).
4.
Contractor shall install tags clearly visible.
Wire and Cable Splices
Wire and cable splicing material manufacturer's instructions shall be
followed. All splices and taps shall be made in accordance with the
best craft practices and shall be mechanically and electrically
equivalent to the wire or cable with which they are used.
***END OF SECTION 16121***
16100-rev0
16100 - 26
December 2004