HomeMy WebLinkAbout260519 - LOW VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES.pdfMatt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 1 of 13
March 23, 2012
Section 260519
Low�Voltage Electrical Power Conductors and Cables
PART 1 � GENERAL
1.01 SUMMARY
A. This Section includes the following:
1. Building wires and cables rated 600 V and less.
2. Connectors, splices, and terminations rated 600 V and less.
1.02 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
B. Section 26 05 00 � Basic Electrical Requirements.
C. Section 26 05 20 – Metal�Clad Cables – Type MC – 600 Volts and Less.
D. Section 26 05 26 – Grounding and Bonding.
E. Section 26 05 30 – Conduit.
F. Section 26 05 34 – Boxes
1.03 REFERENCES
A. Review the Drawings and all sections of the Specifications for equipment furnished by
other Contractors and the Owner throughout the entire project.
B. See references noted in Specification Section 26 05 00, Paragraph 1.03.
C. UL Standard 44 � Requirements for single�conductor and multiple�conductor thermoset�
insulated wires and cables.
D. UL Standard 50 � Enclosures for electrical equipment intended to be installed and used in
non�hazardous locations.
E. UL Standard 83 � Requirements for 600 V, single�conductor, thermoplastic�insulated
wires and cables.
F. Federal Specification J�C�30B – Cable and Wire, Electrical.
G. UL 486D � Sealed wire connector systems.
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 2 of 13
March 23, 2012
1.04 SYSTEM DESCRIPTION
A. Provide wire and cable for electrical work as indicated in Contract Documents, except for
wires and cables specified otherwise under specific sections.
1.05 SUBMITTALS
A. Submit shop drawings and product data under provisions of Division 01 and Section 26
05 00.
B. Product Data: For each type of product indicated.
C. Field quality�control test reports.
1.06 QUALITY ASSURANCE
A. Wire and cable provided shall be NRTL certified and shall meet referenced requirements.
B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in
NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction,
and marked for intended use.
C. Comply with NFPA 70.
1.07 DELIVERY, STORAGE AND HANDLING
A. Deliver, store and handle materials in accordance with Section 26 05 00.
1.08 PROJECT CONDITIONS
A. Install all wire and cable in conduit, unless specifically indicated otherwise.
B. Conductor insulation to be selected in accordance with tables under Paragraph 2.3 based
upon application.
1.09 SEQUENCING AND SCHEDULING
A. Sequence and Schedule work in accordance with Division 01 and Section 26 05 00.
1.10 WARRANTY
A. Warranty in Accordance with requirements of Division 01 and Section 26 05 00.
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 3 of 13
March 23, 2012
PART 2 � PRODUCTS
2.01 COPPER CONDUCTORS AND CABLES – ACCEPTABLE MANUFACTURERS
A. Copper Conductors and Cables Manufacturers: Subject to compliance with requirements,
provide products by one of the following:
1. Aetna Insulated Wire Company.
2. Alcan Products Corporation; Alcan Cable Division.
3. American Insulated Wire Corp.; a Leviton Company.
4. Belden
5. Cerro Wire and Cable Company, Inc.
6. Encore Wire and Cable.
7. General Cable Corporation
8. Phelps Dodge International Corp.
9. Republic Wire, Inc.
10. Senator Wire & Cable Company.
11. Southwire Company.
12. The Okonite Company.
B. Joints and Connection Manufacturers: Subject to compliance with requirements, provide
products by one of the following:
1. Ideal Industries.
2. 3M
3. Ilsco
4. NSI Industries
5. Thomas & Betts Corporation.
2.02 MATERIALS
A. Copper Conductors: Comply with NEMA WC 70.
B. Conductor Insulation: Comply with NEMA WC 70 for Types THHN�THWN.
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 4 of 13
March 23, 2012
C. Multiconductor Cable: Comply with NEMA WC 70 for metal�clad cable, Type MC with
ground wire.
D. Flexible Cord: Comply with NEMA WC 70 for Type 50.
E. Single Conductor Selection By Application:
Application UL Insulation Type
Service Entrance XHHW�2
Below Grade Switchboard, Panelboard, Transformer
and Motor Control Center Feeders
XHHW�2
Above Grade Switchboard, Panelboard, Transform�
er and Motor Control Center Feeders
THHN
THHW
Below Grade Branch Circuit Conductors THHW
Above Grade Branch Circuit Conductors THHN
THHW
Above Grade Discharge Lighting THW
F. All materials shall have been manufactured within the last two years.
G. Conductor Materials::
1. Copper Conductors: Unless specifically indicated otherwise, all conductors shall
be 98 percent conductivity copper.
H. Conductor Sizes:
1. Conductors smaller than 12 AWG are not permitted, except 14 AWG may be
used for control with current less than 10 amps and wire length less than 50 feet.
2. Conductors of 8 AWG or larger shall be stranded.
I. Wire Insulation: 600 volt rated. Types THHW, THWN, THHN, XHHW, XHHW�2 and THW.
All conductor insulation shall be rated 75 degrees C or greater.
2.03 ACCESSORIES
A. Wire and Cable Connectors:
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 5 of 13
March 23, 2012
1. Dry Locations:
a. Conductors Up To #8: Twist�on wire connectors. Push�on connectors
are not acceptable. Connectors shall be Ideal “Wire�Nut”, Ideal “Wing�
Nut, 3M “Scotchlok”, or approved equal.
b. Conductors #6 and Larger: Insulated mechanical style connector or
connector block. Connector shall be as manufactured by ILSCO, NSI
Industries, or approved equal.
2. Damp and Wet Locations:
a. Conductors Up To #6: Watertight, twist�on wire connectors UL listed
for damp and wet locations. Push�on connectors are not acceptable.
Connectors shall be Ideal “Weatherproof” and “Underground” or
approved equals.
b. Conductors #10 and Larger: Watertight, UL486D listed for direct
burial/below grade use and UL 50 listed for submersible applications.
Insulated mechanical style connector or connector block. Connector
shall be as manufactured by NSI Industries “Polaris Blue” or approved
equal.
2.04 FINISHES
A. Labels and Color Coding:
1. Properly phase and identify busses, feeders, and branch circuit conductors
throughout the entire electrical system as required under NFPA 70:
2. Conductor color code shall be permanent type and be part of conductor covering
or outer insulation.
a. For phase conductors larger than 8 AWG and for grounded (neutral)
conductors larger than 6 AWG, color�coding may be provide by color
band/strip in lieu of color�coded conductor covering or outer insulation.
Color bands/strips must be provided at all junctions, pull boxes and
terminating points.
3. Color code individual conductors as follows:
Conductor
120/208 Volt,
3 Phase, 4 Wire
Wye Systems
120/240 Volt,
3 Phase, 4 Wire
Delta Systems
277/480 Volt,
3 Phase, 4 Wire
Wye Systems
Phase “A” Black Black Brown
Phase “B” Red Orange (Hi�Leg) Orange
Phase “C” Blue Blue Yellow
Switch Leg Return Yellow Yellow Yellow
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 6 of 13
March 23, 2012
Conductor
120/208 Volt,
3 Phase, 4 Wire
Wye Systems
120/240 Volt,
3 Phase, 4 Wire
Delta Systems
277/480 Volt,
3 Phase, 4 Wire
Wye Systems
Switch Leg Travelers Purple Purple Purple
Neutral White White Natural Gray
Ground Green Green Green
Isolated Ground Green with Yel�
low Stripe
Green with Yel�
low Stripe
Green with Yel�
low Stripe
2.05 CONNECTORS AND SPLICES
A. Manufacturers: Subject to compliance with requirements, provide products by one of the
following:
1. AFC Cable Systems, Inc.
2. Hubbell Power Systems, Inc.
3. O�Z/Gedney; EGS Electrical Group LLC.
4. 3M; Electrical Products Division.
5. Tyco Electronics Corp.
B. Joints and Connection Manufacturers: Subject to compliance with requirements, provide
products by one of the following:
1. Ideal Industries.
2. 3M
3. Ilsco
4. NSI Industries
5. Thomas & Betts Corporation.
C. Connectors
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 7 of 13
March 23, 2012
1. Connectors shall be factory�fabricated connectors of size, ampacity rating,
material, type, and class for application and service indicated.
2. Connectors shall be of the following types:
a. Solderless, uninsulated high conductivity, corrosion resistant,
compression connectors conforming to UL 467
b. Insulated, indenter�type compression butt connectors
c. Insulated, integral self�locking flexible shell, expandable spring
connectors
d. Uninsulated, indenter�type compression pigtail connectors
e. Welded�type connectors
D. Terminals:
1. Terminals shall be factory�fabricated connectors of size, ampacity rating,
material, type, and class for application and service indicated.
2. Terminals shall be of the following types:
a. Solderless, uninsulated, high conductivity, corrosion resistant,
compression terminals conforming to UL 467 and IEEE 837
b. Insulated, compression terminals
c. Solderless, high�conductivity, corrosion resistant, hex screw type, bolted
terminals
d. Welded type terminals
2.06 OTHER SPLICING AND TERMINATING EQUIPMENT
A. Shrinkable Tubing
1. Subject to compliance with requirements of this Section, provide shrinkable
tubing of the following types:
a. Either irradiated modified polyvinyl chloride or irradiated modified
polyolefin heat shrinkable tubing.
b. Cold shrinkable tubing.
B. Tapes and Sealers
1. Vinyl Tapes shall be Flame�retardant, cold and weather�resistant, 3/4 inch or 1
1/2 inches wide, as required, and conforming to UL 510 and ASTM D 3005.
a. For interior, dry location, provide 7 mils, conforming to ASTM D 3005
(Type I); Scotch (3M) No. 33, or approved equal.
b. For exterior or damp and wet locations, provide 8.5 mils, conforming to
ASTM D 3005 (Type II); Scotch (3M) No. 88, or approved equal.
2. Rubber Tapes shall be Ethylene�propylene, rubber�based, 30�mil splicing tape,
rated for 130 degree C operation; 3/4 inch and wider conforming to ASTM D
1373 and Federal Specification HH�I�553 (Grade A); Scotch (3M) No. 130C, or
approved equal.
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 8 of 13
March 23, 2012
C. Insulating Putty
1. Insulating putty shall be rubber�based, 125�mil elastic filler putty; 1 1/2 inches
wide; Scotch (3M) Scotchfil, or approved equal.
D. Silicone Rubber Tapes
1. Silicone Rubber Tapes shall be inorganic silicone rubber, 12�mil, 130 degree C
rated, anti�tracking, self�fusing tape; 1 inch wide, Scotch (3M) No. 70, or
approved equal.
E. Sealer
1. Sealer shall be liquid applied, fast�drying sealant; Scotch (3M) Scotchkote, or
approved equal.
PART 3 � EXECUTION
3.01 PREPARATION
A. Protect wires when pulling into conduit.
1. Use electrical pulling lubricant especially designed for application.
2. Do not exceed a tension of 0.008 times the circular�mil per conductor
B. Vacuum and then swab all moisture from conduit runs immediately prior to installing
wire in conduits
C. Feeders: Copper. Solid for No. 12 AWG and smaller; stranded for No. 10 AWG and
larger.
3.02 CONDUCTOR MATERIAL APPLICATIONS
A. Feeders: Copper. Solid for No. 12 AWG and smaller; stranded for No. 10 AWG and
larger.
B. Branch Circuits: Copper. Solid for No. 12 AWG and smaller; stranded for No. 10 AWG
and larger.
3.03 CONDUCTOR INSULATION AND MULTICONDUCTOR CABLE APPLICATIONS AND WIRING
METHODS
A. Service Entrance: Type XHHW�2 single conductors in raceway.
B. Exposed Feeders: Type THHN�THWN, single conductors in raceway.
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 9 of 13
March 23, 2012
C. Feeders Concealed in Ceilings, Walls, Partitions, and Crawlspaces: Type THHN�
THWN, single conductors in raceway.
D. Feeders below Slabs�on�Grade, and Underground: Type XHH�2, single conductors in
raceway.
E. Feeders Installed below Raised Flooring: Type THHN�THWN, single conductors in
raceway.
F. Exposed Branch Circuits, Including in Crawlspaces: Type THHN�THWN, single
conductors in raceway.
G. Branch Circuits Concealed in Ceilings, Walls, and Partitions: Type THHN�THWN,
single conductors in raceway.
H. Branch below Slabs�on�Grade, and Underground: Type THWN, single conductors in
raceway.
I. Branch Circuits Installed below Raised Flooring: Type THHN�THWN, single
conductors in raceway.
J. Cord Drops and Portable Appliance Connections: Type Bus�drop cable, hard service
cord with stainless�steel, wire�mesh, strain relief device at terminations to suit
application.
K. Class 1 Control Circuits: Type THHN�THWN, in raceway.
L. Class 2 Control Circuits: Type THHN�THWN, in raceway.
3.04 INSTALLATION
A. Install wires and cables in code conforming raceway.
B. Feeders:
1. Run feeders continuously without splices, except with the permission of the
Engineer.
2. Conductor lengths for parallel feeders shall be identical in material type,
stranding, insulation and length.
3. Grouping of feeders in raceway system is not permitted unless specifically
indicated in the Contract Documents.
4. Lace or clip groups of feeder conductors together at distribution centers and pull
boxes.
C. Branch Circuit Wiring:
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 10 of 13
March 23, 2012
1. Dedicated Neutrals: Provide a dedicated neutral conductor for each circuit. Do
not share neutral conductors between separate circuits unless indicated otherwise
on the plans..
2. Grouping: Do not group more than nine conductors in one conduit. Conductors
include all phase conductors and the neutral conductors, switch legs and
travelers.
D. Derating:
1. Adjust the size of conductors to maintain circuit ampacity by adjusting for the
derating requirements of Section 310.15 of the National Electrical Code.
2. Where non�linear loads are fed by a single�phase circuit, the neutral conductor
shall be considered to be current carrying conductor for purposes of calculating
conductor derating factors.
E. Grounding: Refer to Section 26 05 26 for grounding conductor requirements.
F. Use wire pulling lubricant for pulling No. 4 AWG and larger wire at pull�in point of the
conduit. For feeder runs over 200 feet in length, measure pulling tension using a
dynamometer. Do not exceed manufacturer’s recommendations.
G. For wiring installed without raceway or cable tray, route in a workmanlike manner
parallel to building lines and ty�wrapped to building structure at a maximum of 6�foot
intervals. Bundling or coiling of excessive wire is not permitted.
H. Make splices only in accessible junction or outlet boxes.
3.05 INSTALLATION OF CONDUCTORS AND CABLES
A. Conceal cables in finished walls, ceilings, and floors, unless otherwise indicated.
B. Use manufacturer�approved pulling compound or lubricant where necessary; compound
used must not deteriorate conductor or insulation. Do not exceed manufacturer's
recommended maximum pulling tensions and sidewall pressure values.
C. Use pulling means, including fish tape, cable, rope, and basket�weave wire/cable grips,
that will not damage cables or raceway.
D. Install exposed cables parallel and perpendicular to surfaces of exposed structural
members, and follow surface contours where possible.
E. Support cables according to Division 26 Section "Hangers and Supports for Electrical
Systems."
F. Identify and color�code conductors and cables according to Division 26 Section
"Identification for Electrical Systems."
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 11 of 13
March 23, 2012
3.06 CONNECTIONS
A. Tighten electrical connectors and terminals according to manufacturer's published torque�
tightening values. If manufacturer's torque values are not indicated, use those specified
in UL 486A and UL 486B.
B. Make splices and taps that are compatible with conductor material and that possess
equivalent or better mechanical strength and insulation ratings than unspliced conductors.
C. Wiring at Outlets: Install conductor at each outlet, with at least 12 inches of slack.
D. Splicing
1. Splicing and terminating shall be as specified in this Section. Details of special
splicing and terminating shall be as shown on the Contract Drawings. Any
splicing or terminating methods other than those specified below, for which the
components are in accordance with the requirements of this Section, shall be
submitted to the Engineer for approval
2. General Purpose Wires and Cables
a. Splices in dry locations for sizes #10 and smaller shall use one of the
following:
1) Insulated, integral, self�locking flexible shell, expandable spring
connectors shall be applied to the twisted conductors. Two, half�
lapped layers of vinyl tape, extending to a distance of not less
than one inch from the connector, shall be applied.
2) Compression type, insulated butt connectors shall be applied to
the butted conductors by means of an appropriate crimping tool,
providing controlled indentation. Two, half�lapped layers of
vinyl tape, extending to a distance of not less than one inch from
the connector, shall be applied.
3) Compression type, pigtail connectors shall be applied to the
conductors by means of an appropriate crimping tool, providing
controlled indentation. The connector shall be covered with a
polyamide cap and two, half�lapped layers of vinyl tape,
extending to a distance of not less than one inch from the
connector, shall be applied.
b. Splices in dry locations for sizes #8 and larger shall use all of the
following:
1) Connectors shall be split sleeve solderless type or solderless
compression type.
2) Fill indents of connectors with Scotchfil.
3) Apply rubber splicing tape equal to the original insulation rating.
4) Apply two, half�lapped layers of vinyl tape, or a shrinkable
tubing
c. Splices in wet locations for all sizes
1) Same as dry location specified above, with two coats of sealer or
shrinkable tubing over the vinyl tape
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 12 of 13
March 23, 2012
E. Terminations
1. Terminations in dry locations for sizes #10 and smaller shall be with compression
terminals, insulated or uninsulated
2. Terminations in dry locations for sizes #8 AWG through 3/0 AWG shall be either
solderless uninsulated compression crimp type ring tongue terminals or bolted
hex screw type ring tongue lugs.
3. Terminations in dry locations for sizes 4/0 AWG and larger shall be solderless,
uninsulated compression crimp type ring tongue terminals.
4. Terminations in wet locations shall be as dry location terminations above, plus
cover the entire termination area with two, half�lapped layers of vinyl tape and
apply two coats of sealer over the tape.
3.07 CONSTRUCTION
A. Install wires and cables in code conforming raceway.
B. Connections and Terminations:
1. Connect conductors 8 AWG and smaller with compression connectors or wire
nuts.
2. Connect conductors 6 AWG and larger with compression or hy�dent type
connectors.
C. Installation – Joints and Connections:
1. Joints, connections, splices, etc, shall be made in a workmanlike manner and
according to manufacturer's directions.
2. Utilize connectors UL listed as required for installation application.
3. Utilize connectors UL listed for damp and wet locations in inground and
underground pull boxes, junction boxes, handholes, and manholes, and other
damp and wet locations.
4. Utilize connectors UL listed for direct burial where connections are direct buried.
5. <Aluminum Conductors: Provide crimp on, barrel�to�pigtail adapters where
needed for terminations. Pigtail adapters shall be sized as required to make
terminations. Utilize approved tools to maintain UL listing and CSA
certification.>
Matt the Miller’s
Carmel, IN
L’Acquis Number: 12056
Section 260519 Low�Voltage Electrical Power Conductors & Cables Page 13 of 13
March 23, 2012
3.08 FIRESTOPPING
A. Apply firestopping to electrical penetrations of fire�rated floor and wall assemblies to
restore original fire�resistance rating of assembly according to Division 07 Section
"Penetration Firestopping."
3.09 FIELD QUALITY CONTROL
A. Perform tests and inspections and prepare test reports.
B. Tests and Inspections:
1. After installing conductors and cables and before electrical circuitry has been
energized, test conductors #3 and larger for compliance with requirements.
2. Perform each visual and mechanical inspection and electrical test stated in NETA
Acceptance Testing Specification. Certify compliance with test parameters.
C. Test Reports: Prepare a written report to record the following:
1. Test procedures used.
2. Test results that comply with requirements.
3. Test results that do not comply with requirements and corrective action taken to
achieve compliance with requirements.
D. Remove and replace malfunctioning units and retest as specified above.
END OF SECTION 260519