260519.pdf

DCFT #082207

Hanson #03S1408GGB

260519-1 260519

LOW-VOLTAGE ELECTRICAL

POWER CONDUCTORS AND CABLES

DIVISION 26- ELECTRICAL

SECTION 260519 – LOW-VOLTAGE ELECTRICAL

POWER CONDUCTORS AND CABLES

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Building wires and cables rated 600-Volt and less.

2. Connectors, splices, and terminations rated 600-Volt and less.

B. Related Sections include the following:

1. Division 27 Section 271500 "Communications Horizontal Cabling" for cabling used for voice and data circuits.

1.3 DEFINITIONS

A. EPDM: Ethylene-propylene-diene terpolymer rubber.

B. NBR: Acrylonitrile-butadiene rubber.

1.4 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Qualification Data: For testing agency.

C. Field quality-control test reports.

1.5 QUALITY ASSURANCE

A. Testing Agency Qualifications: An independent agency, with the experience and capability to conduct the testing indicated, that is a member company of the International Electrical Testing Association or is a nationally recognized testing laboratory (NRTL) as defined by OSHA in 29 CFR 1910.7, and that is acceptable to authorities having jurisdiction:

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1. Testing Agency's Field Supervisor: Person currently certified by the International Electrical Testing Association or the National Institute for Certification in Engineering Technologies to supervise on-site testing specified in Part 3.

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.

PART 2 - PRODUCTS

2.1 CONDUCTORS AND CABLES

A. Manufacturers: Subject to compliance with requirements, the following are provided as examples of the salient characteristics to be found in the submitted product. Manufacturers offering products that may be incorporated into the Work include, but are not limited to, manufacturers specified:

1. Alcan Products Corporation; Alcan Cable Division.

2. American Insulated Wire Corp.; a Leviton Company.

3. Anaconda Wire & Cable Company.

4. General Cable Corporation.

5. Senator Wire & Cable Company.

6. Southwire Company.

B. All conductors and cables shall be annealed coated copper per ASTM B 33 or B 189 with conductivity of not less than 98 percent. All stranded conductors shall be Class B per ASTM B 8.

C. Copper Conductors: Comply with NEMA WC 70.

D. Conductor Insulation: Comply with NEMA WC 70 for Types THW, THHN-THWN, and

XHHW-2.

E. Multiconductor Cable: Comply with NEMA WC 70 for nonmetallic-sheathed cable, Type SO with ground wire.

2.2 CONNECTORS AND SPLICES

A. Manufacturers: Subject to compliance with requirements, the following are provided as examples of the salient characteristics to be found in the submitted product. Manufacturers offering products that may be incorporated into the Work include, but are not limited to, manufacturers specified:

1. AFC Cable Systems, Inc.

2. Hubbell Power Systems, Inc.

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3. O-Z/Gedney; EGS Electrical Group LLC.

4. 3M; Electrical Products Division.

5. Tyco Electronics Corp.

B. Description: Factory-fabricated connectors and splices of size, ampacity rating, material, type, and class for application and service indicated.

C. Make terminations, taps, and splices with an indent type pressure connector with insulating cover for #8 AWG and smaller.

D. Instead of indent type connectors, insulated spring compression connectors may be used for #10 AWG and smaller.

E. Use mechanical compression or bolted type connector for #6 AWG or larger. Cover connector with insulating tape or heat shrinkable insulation equivalent to 150 percent conductor insulation.

PART 3 - EXECUTION

3.1 CONDUCTOR MATERIAL APPLICATIONS

A. Feeders: Copper. Solid for No. 10 AWG and smaller; stranded for No. 8 AWG and larger.

B. Branch Circuits: Copper. Solid for No. 10 AWG and smaller; stranded for No. 8 AWG and larger.

3.2 CONDUCTOR INSULATION AND MULTICONDUCTOR CABLE APPLICATIONS AND

WIRING METHODS

A. Service Entrance: Type XHHW-2, single conductors in raceway.

B. Feeders #6 AWG and larger Concealed in Ceilings, Walls, Partitions, and Crawlspaces:

Type XHHW-2, single conductors in raceway.

C. Feeders #6 AWG and larger Concealed in Concrete, below Slabs-on-Grade, and Underground:

Type XHHW-2, single conductors in raceway.

D. Feeders #8 AWG and smaller, and Branch Circuits Concealed in Ceilings, Walls, and Partitions:

Type THHN-THWN, single conductors in raceway.

E. Feeders #8 AWG and smaller, and Branch Circuits Concealed in Concrete, below Slabs-on- Grade, and Underground: Type THWN, single conductors in raceway.

F. Cord Drops and Portable Appliance Connections: Type SO, hard service cord with stainless-steel, wire-mesh, strain relief device at terminations to suit application.

G. Class 1 Control Circuits: Type THHN-THWN, in raceway.

H. Class 2 Control Circuits: Type THHN-THWN, in raceway.

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3.3 INSTALLATION OF CONDUCTORS AND CABLES

A. Minimum wire sizes shall in no case be less than shown on the drawings and/or specified herein:

1. Power and lighting branch circuits:

a. Where the farthest outlet of a single 120-Volt branch circuit is less than 75 ft (22,875 mm) from the panelboard, use No. 12 AWG wire between all outlets and for the home run of that circuit.

b. Where the farthest outlet of a circuit is more than 75 ft (22,875 mm) from the panelboard, use No. 10 AWG wire for the home run of that circuit and No. 12 AWG wire between all other outlets on that circuit expect where larger sizes are indicated.

2. 120-Volt Control and Signal Wiring: No. 14 AWG.

3. Low Voltage Control Wiring: No. 16 AWG.

B. Conceal cables in finished walls, ceilings, and floors, unless otherwise indicated.

C. 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.

D. Use pulling means, including fish tape, cable, rope, and basket-weave wire/cable grips, that will not damage cables or raceway.

E. Identify and color-code conductors and cables according to Division 26 Section 260553 "Identification for Electrical Systems."

F. Do not pull any conductor or wire in a raceway until conduit system is complete and internal raceway has been cleaned. Strain on conductors shall not exceed manufacturer’s recommendations during pulling. Use pulling lubricant, compatible with insulation and covering, that will not cause deterioration of insulation or jacket covers or conductors or wires.

Use pulling lubricant recommended by manufacturer.

G. Place an equal number of conductors for each phase of a circuit in same raceway or cable. Make conductor lengths for parallel circuits equal.

H. Splice only in accessible junction boxes.

I. Neatly train and lace conductors inside boxes, equipment and panelboards.

J. Maintain color coding of conductors for all systems.

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3.4 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.

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. Thoroughly clean wire before installing lugs and connectors.

D. Make splices, taps, and terminations to carry full ampacity of conductors without perceptible temperature rise.

E. Terminate spare conductors with electrical tape and roll in box.

F. Wiring at Outlets: Install conductor at each outlet, with at least 6 in. (150 mm) of slack.

G. Torque conductor terminations to manufacturer’s recommended values.

3.5 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 078413 "Penetration Firestopping."

3.6 FIELD QUALITY CONTROL

A. Testing Agency: Engage a qualified testing agency to perform tests and inspections and prepare test reports.

B. Perform tests and inspections and prepare test reports.

C. Tests and Inspections:

1. After installing conductors and cables and before electrical circuitry has been energized, test for compliance with requirements:

a. Test feeders, branch circuits, and control circuits to determine continuity of wiring and connections.

b. Phase Relationship: Check connections to equipment for proper A-B-C phase relationship.

2. Perform each visual and mechanical inspection and electrical test stated in NETA Acceptance Testing Specification. Certify compliance with test parameters.

3. Inspect wiring for physical damage and proper connection.

D. Test Reports: Prepare a written report to record the following:

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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.

E. Remove and replace malfunctioning conductors and cables and retest as specified above.

END OF SECTION 260519