This Product MasterSpec Section modifies the original MasterSpec text, and does not include the full content of the original MasterSpec Section


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Copyright 2015 AIA MasterSpec Premium 12/15

PRODUCT MASTERSPEC LICENSED BY ARCOM TO SERVICE WIRE CO.


Copyright 2015 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

This Product MasterSpec Section is licensed by ARCOM to Service Wire Company ("Licensee").

This Product MasterSpec Section modifies the original MasterSpec text, and does not include the full content of the original MasterSpec Section.

Revisions made to the original MasterSpec text are made solely by the Licensee and are not endorsed by, or representative of the opinions of, ARCOM or The American Institute of Architects (AIA). Neither AIA nor ARCOM are liable in any way for such revisions or for the use of this Product MasterSpec Section by any end user. A qualified design professional should review and edit the document to suit project requirements.

For more information, contact Service Wire Company, 300 Davis Road, Culloden, WV 25510; Website: www.servicewire.com; Email: lee.perry@servicewire.com.

For information about MasterSpec contact ARCOM at (800) 424-5080 or visit www.MasterSpec.com.

SECTION 260519 - LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

TIPS:

To view non-printing Editor's Notes that provide guidance for editing, click on Masterworks/Single-File Formatting/Toggle/Editor's Notes.

To read detailed research, technical information about products and materials, and coordination checklists, click on Masterworks/Supporting Information.

Revise this Section by deleting and inserting text to meet Project-specific requirements.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

See "Sustainable Design Considerations" Article in the Evaluations for a discussion of sustainable design requirements that may impact editing of this Section.

PART 1 - GENERAL

1.1RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

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

1.2SUMMARY

A.Section Includes:

1.Copper building wire rated 600 V or less.

2.Aluminum building wire rated 600 V or less.

3.Metal-clad cable, Type MC, rated 2,000 V or less.

4.Armored cable, Type AC, rated 600 V or less.

5.Photovoltaic cable, Type PV, rated 2,000 V or less.

6.Mineral-insulated cable, Type MI, rated 600 V or less.

7.Tray Cable, Type TC, rated 600 V or less.

8.Connectors, splices, and terminations rated 600 V and less.

B.Related Requirements:

Retain subparagraphs below to cross-reference requirements Contractor might expect to find in this Section but are specified in other Sections.

1.Section 260513 "Medium-Voltage Cables" for single-conductor and multiconductor cables, cable splices, and terminations for electrical distribution systems with 601 to 35,000 V.

2.Section 260523 "Control-Voltage Electrical Power Cables" for control systems communications cables and Classes 1, 2, and 3 control cables.

3.Section 271313 "Communications Copper Backbone Cabling" for twisted pair cabling used for data circuits.

4.Section 271513 "Communications Copper Horizontal Cabling" for twisted pair cabling used for data circuits.

1.3DEFINITIONS

Retain terms that remain after this Section has been edited for a project.

A.PV: Photovoltaic.

B.RoHS: Restriction of Hazardous Substances.

C.VFC: Variable-frequency controller.

1.4ACTION SUBMITTALS

A.Product Data: For each type of product.

B.Sustainable Design Submittals:

"Product Data" Subparagraph below applies to LEED v4 for Healthcare MR Credit, "PBT Source Reduction – Lead, Cadmium, and Copper."

1.Product Data: For each conductor and cable indicating lead content.

2.Product Data: For recycled content, indicating postconsumer and preconsumer recycled content and cost.

"Product Data" Subparagraph below applies to LEED 2009 NC, CI, and CS; LEED v4; IgCC; ASHRAE 189.1; and Green Globes. Coordinate with requirements.

3.Product Data: For solvents and adhesives, indicating VOC content.

"Laboratory Test Reports" Subparagraph below is an additional requirement for schools projects.

4.Laboratory Test Reports: For solvents and adhesives, indicating compliance with requirements for low-emitting materials.

C.Product Schedule: Indicate type, use, location, and termination locations.

1.5INFORMATIONAL SUBMITTALS

Coordinate "Qualification Data" Paragraph below with qualification requirements in Section 014000 "Quality Requirements" and as may be supplemented in "Quality Assurance" Article.

A.Qualification Data: For [testing agency] [manufacturer's authorized service representative].

Retain "Field quality-control reports" Paragraph below if Contractor is responsible for field quality-control testing and inspecting.

B.Field quality-control reports.

1.6QUALITY ASSURANCE

Retain "Testing Agency Qualifications" Paragraph below if Contractor selects testing agency or if Contractor is required to provide services of a qualified testing agency in "Field Quality Control" Article. Qualification requirements are in addition to those specified in Section 014000 "Quality Requirements."

A.Testing Agency Qualifications: Member company of NETA.

1.Testing Agency's Field Supervisor: Certified by NETA to supervise on-site testing.

PART 2 - PRODUCTS

Manufacturers and products listed in SpecAgent and Masterworks Paragraph Builder are neither recommended nor endorsed by the AIA or ARCOM. Before inserting names, verify that manufacturers and products listed there comply with requirements retained or revised in descriptions and are both available and suitable for the intended applications. For definitions of terms and requirements for Contractor's product selection, see Section 016000 "Product Requirements."

2.1COPPER BUILDING WIRE

Retain this article to specify allowable types of copper building wire. Separate articles are included in the Specification for aluminum building wire, Type AC cable (copper and aluminum), Type MC cable (copper and aluminum), Type PV, and Type TC cable.

A.Description: Flexible, insulated and uninsulated, drawn copper current-carrying conductor with an overall insulation layer or jacket, or both, rated 600 V or less.

B.Basis-of-Design Product: Subject to compliance with requirements, provide Service Wire Co. or a comparable product by one of the following:

1.Alpha Wire Company.

2.American Bare Conductor.

3.Belden Inc.

4.Cerro Wire LLC.

5.Encore Wire Corporation.

6.General Cable Technologies Corporation.

7.Southwire Company.

8.WESCO.

9.<Insert manufacturer's name>.

C.Standards:

1.Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

2.RoHS compliant.

See the Evaluations for discussion of UL's "Wire and Cable Marking and Application Guide."

3.Conductor and Cable Marking: Comply with wire and cable marking according to UL's "Wire and Cable Marking and Application Guide."

First option in "Conductors" Paragraph below is standard for most conductors. Second option is specific to Type TC-ER cables or larger conductors requiring compact stranding.

D.Conductors: Copper, complying with ASTM B 3 for bare annealed copper and with [ASTM B 8] [ASTM B 496] for stranded conductors.

Common insulation types are described below; however, numerous other insulation types and flame-resistance options are available. Coordinate with Drawings.

E.Conductor Insulation:

1.Type NM: Comply with UL 83 and UL 719.

2.[Type RHH] [and] [Type RHW-2]: Comply with UL 44.

3.[Type USE-2] [and] [Type SE]: Comply with UL 854.

4.Type TC-ER: Comply with NEMA WC 70/ICEA S-95-658 and UL 1277.

5.[Type THHN] [and] [Type THWN-2]: Comply with UL 83.

6.[Type THW] [and] [Type THW-2]: Comply with NEMA WC-70/ICEA S-95-658 and UL 83.

7.Type UF: Comply with UL 83 and UL 493.

8.Type XHHW-2: Comply with UL 44.

9.<Insert Type and standard>.

2.2ALUMINUM BUILDING WIRE

Retain this article to specify allowable types of aluminum building wire. Separate articles are included in the Specification for copper building wire, Type AC cable (copper and aluminum), Type MC cable (copper and aluminum), Type PV, and Type TC cable. If retaining multiple types of conductor or cable, indicate where used on Drawings.

A.Description: Flexible, insulated and uninsulated, drawn aluminum current-carrying conductor with an overall insulation layer or jacket, or both, rated 600 V or less.

B.Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1.Alpha Wire Company.

2.American Bare Conductor.

3.Belden Inc.

4.Cerro Wire LLC.

5.Encore Wire Corporation.

6.General Cable Technologies Corporation.

7.Southwire Company.

8.WESCO.

9.<Insert manufacturer's name>.

C.Standards:

1.Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

2.RoHS compliant.

See the Evaluations for discussion of UL's "Wire and Cable Marking and Application Guide."

3.Conductor and Cable Marking: Comply with wire and cable marking according to UL's "Wire and Cable Marking and Application Guide."

Common insulation types are described below; however, numerous other insulation types and flame-resistance options are available. Coordinate with Drawings.

D.Conductors: Aluminum, complying with ASTM B 800 and ASTM B 801.

E.Conductor Insulation:

1.Type NM: Comply with UL 83 and UL 719.

2.[Type RHH] [and] [Type RHW-2]: Comply with UL 44.

3.[Type USE-2] [and] [Type SE]: Comply with UL 854.

4.Type TC-ER: Comply with NEMA WC 70/ICEA S-95-658 and UL 1277.

5.[Type THHN] [and] [Type THWN-2]: Comply with UL 83.

6.[Type THW] [and] [Type THW-2]: Comply with NEMA WC-70/ICEA S-95-658 and UL 83.

7.Type XHHW-2: Comply with UL 44.

8.<Insert Type and standard>.

2.3METAL-CLAD CABLE, TYPE MC

If retaining multiple types of conductor or cable, indicate where used on Drawings.

A.Description: A factory assembly of one or more current-carrying insulated conductors in an overall metallic sheath, rated [2000] [600] V.

B.Basis-of-Design Product: Subject to compliance with requirements, provide Service Wire Co. or a comparable product by one of the following:

1.Alpha Wire Company.

2.American Bare Conductor.

3.Belden Inc.

4.Encore Wire Corporation.

5.General Cable Technologies Corporation.

6.Okonite Company (The).

7.Southwire Company.

8.WESCO.

9.<Insert manufacturer's name>.

C.Standards:

1.Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

2.Comply with UL 1569.

Not all Type MC cable will comply with RoHS requirements, such as some types with galvanized-steel armor. Consult manufacturer.

3.RoHS compliant.

See the Evaluations for discussion of UL's "Wire and Cable Marking and Application Guide."

4.Conductor and Cable Marking: Comply with wire and cable marking according to UL's "Wire and Cable Marking and Application Guide."

D.Circuits:

Retain first option in first subparagraph below for single-circuit Type MC cable. Retain second option to allow multiple circuits per cable. If retaining both options, indicate where used on Drawings.

1.[Single circuit] [and] [multicircuit with color-coded conductors].

2.Power-Limited Fire-Alarm Circuits: Comply with UL 1424.

E.Conductors: [Copper, complying with ASTM B 3 for bare annealed copper and with ASTM B 8 for stranded conductors] [Aluminum, complying with ASTM B 800 and ASTM B 801].

F.Ground Conductor: [Bare] [Insulated] [None].

G.Conductor Insulation:

1.Type TFN/THHN/THWN-2: Comply with UL 83.

2.Type XHHW-2: Comply with UL 44.

3.<Insert Type and standard>.

H.Armor: [Steel] [Aluminum], interlocked.

I.Jacket: PVC applied over armor.

2.4ARMORED CABLE, TYPE AC

If retaining multiple types of conductor or cable, indicate where used on Drawings.

A.Description: A factory assembly of insulated current-carrying conductors with or without an equipment grounding conductor in an overall metallic sheath.

B.Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1.Alpha Wire Company.

2.American Bare Conductor.

3.Belden Inc.

4.Cerro Wire LLC.

5.Encore Wire Corporation.

6.General Cable Technologies Corporation.

7.Southwire Company.

8.WESCO.

9.<Insert manufacturer's name>.

C.Standards:

1.Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

Not all Type AC cable will comply with RoHS requirements, such as some types with galvanized-steel armor. Consult manufacturer.

2.RoHS compliant.

3.Comply with UL 4.

See the Evaluations for discussion of UL's "Wire and Cable Marking and Application Guide."

4.Conductor and Cable Marking: Comply with wire and cable marking according to UL's "Wire and Cable Marking and Application Guide."

D.Circuits:

Retain first option in first subparagraph below for single-circuit Type AC cable. Retain second option to allow multiple circuits per cable. If retaining both options, indicate where used on Drawings.

1.[Single circuit] [and] [multicircuit with color-coded conductors].

2.Power-Limited Fire-Alarm Circuits: Comply with UL 1424.

E.Conductors: [Copper, complying with ASTM B 3 for bare annealed copper and with ASTM B 8 for stranded conductors] [Aluminum, complying with ASTM B 800 and ASTM B 801].

F.Ground Conductor: [Bare] [Insulated] [None].

G.Conductor Insulation: Type THHN/THWN-2. Comply with UL 83.

H.Armor: [Steel] [Aluminum], interlocked.

2.5PHOTOVOLTAIC CABLE, TYPE PV

A.Description: Flexible, insulated and uninsulated, drawn copper current-carrying conductor with an overall insulation layer or jacket, or both, rated [2000] [600] V.

B.Basis-of-Design Product: Subject to compliance with requirements, provide Service Wire Co. or a comparable product by one of the following:

1.Encore Wire Corporation.

2.General Cable; General Cable Corporation.

3.Southwire Company.

4.<Insert manufacturer's name>.

C.Standards:

1.Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

2.RoHS compliant.

See the Evaluations for discussion of UL's "Wire and Cable Marking and Application Guide."

3.Conductor and Cable Marking: Comply with wire and cable marking according to UL's "Wire and Cable Marking and Application Guide."

D.Conductors: Copper, complying with ASTM B 3 for bare annealed copper and with ASTM B 8 for stranded conductors.

E.Conductor Insulation: Comply with UL 44 and UL 4703.

2.6MINERAL-INSULATED CABLE, TYPE MI

Retain this article to specify a Type MI cable for power with a 2-hour fire rating. See the Evaluations for a discussion of Type MI cable and for information on manufacturers who offer Type MI cable.

A.Description: Solid copper conductors encased in compressed metal oxide with an outer metallic sheath, rated 600 V or less.

B.Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1.KME America, Inc.

2.Pentair.

3.Watlow Electric Manufacturing Company.

4.<Insert manufacturer's name>.

C.Standards:

1.Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

2.UL 2196 for fire resistance.

See the Evaluations for discussion of UL's "Wire and Cable Marking and Application Guide."

3.Conductor and Cable Marking: Comply with wire and cable marking according to UL's "Wire and Cable Marking and Application Guide."

D.Conductors: Copper, complying with ASTM B 3 for bare annealed copper.

Magnesium oxide insulation is standard for most Type MI power conductors; however, other materials are available. Consult manufacturer.

E.Insulation: [Compressed magnesium oxide] <Insert material>.

Copper sheaths are standard for most Type MI power conductors; however, other metals may be available. Consult manufacturer.

F.Sheath: [Copper] <Insert material>.

2.7TRAY CABLE, TYPE TC

If retaining multiple types of conductor or cable, indicate where used on Drawings.

A.Description: A factory assembly of insulated current-carrying conductors with or without an equipment grounding conductor in a nonmetallic jacket, rated [2000] [600] V.

B.Basis-of-Design Product: Subject to compliance with requirements, provide Service Wire Co. or a comparable product by one of the following:

1.Alpha Wire Company.

2.American Bare Conductor.

3.Belden Inc.

4.Cerro Wire LLC.

5.Encore Wire Corporation.

6.General Cable Technologies Corporation.

7.Southwire Company.

8.WESCO.

9.<Insert manufacturer's name>.

C.Standards:

1.Comply with UL 1277 or UL 1569, UL 1685, and NFPA 70 for Type TC-ER or Type MC cable.

Not all Type TC cable may comply with RoHS requirements. Consult manufacturer.

2.RoHS compliant.

3.Comply with ICEA S-73-532/NEMA WC 57 for Type TC cables used for control, thermocouple extension, and instrumentation.

4.Comply with ICEA S-95-658/NEMA WC 70 for Type TC cables used for power distribution.

See the Evaluations for discussion of UL's "Wire and Cable Marking and Application Guide."

5.Conductor and Cable Marking: Comply with wire and cable marking according to UL's "Wire and Cable Marking and Application Guide."

D.Conductors: [Copper, complying with ASTM B 3 for bare annealed copper and with ASTM B 8 for stranded conductors] [Aluminum, complying with ASTM B 800 and ASTM B 801].

E.Ground Conductor: [Bare] [Insulated] [None].

F.Conductor Insulation: Type XHHW-2. Comply with UL 44.

Retain one shield option in "Type TC-ER" Subparagraph below. This cable is commonly used for VFCs, but it is also approved for other uses.

G.Shield: [None] [Metallic].

H.Shield:

1.Type TC-ER or Type MC: Cable designed for use with VFCs, with oversized crosslinked polyethylene insulation, [spiral-wrapped foil plus 85 percent coverage braided shields and insulated full-size ground wire] [double wrapped copper tape shields and three bare symmetrically applied ground wires], and sunlight- and oil-resistant outer PVC, CPE, or Limited Smoke Zero Halogen jacket.

2.8CONNECTORS AND SPLICES

A.Description: Factory-fabricated connectors and splices of size, ampacity rating, material, type, and class for application and service indicated; listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

B.Basis-of-Design Product: Subject to compliance with requirements, provide Service Wire Co. or a comparable product by one of the following:

1.3M Electrical Products.

2.AFC Cable Systems; a part of Atkore International.

3.Gardner Bender.

4.Hubbell Power Systems, Inc.

5.Ideal Industries, Inc.

6.ILSCO.

7.NSi Industries LLC.

8.O-Z/Gedney; a brand of Emerson Industrial Automation.

9.TE Connectivity Ltd.

10.Thomas & Betts Corporation; A Member of the ABB Group.

11.<Insert manufacturer's name>.

PART 3 - EXECUTION

3.1CONDUCTOR MATERIAL APPLICATIONS

This article provides examples of material requirements for conductors and cables. Revise to retain requirements for the various types of wire and cable in this Section. Add other applications and materials if required, revise application and materials to suit Project conditions, authorities having jurisdiction, and practice.

Retain one of two "Feeders" paragraphs below.

A.Feeders: Copper; solid for No. 16 AWG and smaller; stranded for No. 14 AWG and larger.

B.Feeders: Copper for feeders smaller than No. 4 AWG; copper or aluminum for feeders No. 4 AWG and larger. Conductors shall be solid for No. 10 AWG and smaller; stranded for No. 8 AWG and larger.

Retain one of two "Branch Circuits" paragraphs below.

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

D.Branch Circuits: Copper. Solid for No. 12 AWG and smaller; stranded for No. 10 AWG and larger.

E.VFC Output Circuits Cable: Flexible stranded for all sizes.

F.Power-Limited Fire Alarm and Control: Solid for No. 12 AWG and smaller.

G.PV Circuits: [Copper] [Aluminum]. Solid for No. 10 AWG and smaller; stranded for No. 8 AWG and larger.

3.2CONDUCTOR INSULATION AND MULTICONDUCTOR CABLE APPLICATIONS AND WIRING METHODS

This article provides examples of application requirements for conductors and cables. Revise to retain wiring methods for various environments in Project. Add other methods if required. Revise conductor insulation and cable type designations to suit Project conditions, authorities having jurisdiction, and practice. See NFPA 70 and UL's "Wire and Cable Marking and Application Guide" for additional application information about conductor sizes, insulation temperature ratings in cables, and product-use classifications and restrictions.

See the Evaluations for use of Type MI cable as service entrance conductor inside a building.

A.Service Entrance: [Type THHN/THWN-2, single conductors in raceway] [Type XHHW-2, single conductors in raceway] [Type USE, single conductor in raceway] [Mineral-insulated, metal-sheathed cable, Type MI] [Multiconductor cable, Type SE].

B.Exposed Feeders: [Type THHN/THWN-2, single conductors in raceway] [Type XHHW-2, single conductors in raceway] [Armored cable, Type AC] [Metal-clad cable, Type MC] [Mineral-insulated, metal-sheathed cable, Type MI] [Nonmetallic-sheathed cable, Type NM].

C.Feeders Concealed in Ceilings, Walls, Partitions, and Crawlspaces: [Type THHN/THWN-2, single conductors in raceway] [Armored cable, Type AC] [Metal-clad cable, Type MC] [Mineral-insulated, metal-sheathed cable, Type MI] [Nonmetallic-sheathed cable, Type NM].

Coordinate "Feeders Concealed in Concrete, below Slabs-on-Grade, and Underground" Paragraph below with Section 260543 "Underground Ducts and Raceways for Electrical Systems."

D.Feeders Concealed in Concrete, below Slabs-on-Grade, and Underground: [Type THHN/THWN-2, single conductors in raceway] [Type XHHW-2, single conductors in raceway] [Underground feeder cable, Type UF].

E.Feeders Installed below Raised Flooring: [Type THHN/THWN-2, single conductors in raceway] [Armored cable, Type AC] [Metal-clad cable, Type MC] [Mineral-insulated, metal-sheathed cable, Type MI].

F.Feeders in Cable Tray: [Type THHN/THWN-2, single conductors in raceway] [Type XHHW-2, single conductors larger than No. 1/0 AWG] [Armored cable, Type AC] [Metal-clad cable, Type MC] [Mineral-insulated, metal-sheathed cable, Type MI] [Nonmetallic-sheathed cable, Type NM].

NFPA 70 restricts use of exposed Type NM cable in some types of construction. See NFPA 70, Article 334, for complete listing of restrictions.

G.Exposed Branch Circuits, Including in Crawlspaces: [Type THHN/THWN-2, single conductors in raceway] [Armored cable, Type AC] [Metal-clad cable, Type MC] [Mineral-insulated, metal-sheathed cable, Type MI] [Nonmetallic-sheathed cable, Type NM].

H.Branch Circuits Concealed in Ceilings, Walls, and Partitions: [Type THHN/THWN-2, single conductors in raceway] [Armored cable, Type AC] [Metal-clad cable, Type MC] [Mineral-insulated, metal-sheathed cable, Type MI] [Nonmetallic-sheathed cable, Type NM].

Coordinate "Branch Circuits Concealed in Concrete, below Slabs-on-Grade, and Underground" Paragraph below with Section 260543 "Underground Ducts and Raceways for Electrical Systems."

I.Branch Circuits Concealed in Concrete, below Slabs-on-Grade, and Underground: [Type THHN/THWN-2, single conductors in raceway] [Type XHHW-2, single conductors in raceway] [Underground branch-circuit cable, Type UF].

J.Branch Circuits Installed below Raised Flooring: [Type THHN/THWN-2, single conductors in raceway] [Armored cable, Type AC] [Metal-clad cable, Type MC] [Mineral-insulated, metal-sheathed cable, Type MI].

K.Branch Circuits in Cable Tray: [Type THHN/THWN-2, single conductors in raceway] [Type XHHW-2, single conductors larger than No. 1/0 AWG] [Armored cable, Type AC] [Metal-clad cable, Type MC] [Mineral-insulated, metal-sheathed cable, Type MI] [Nonmetallic-sheathed cable, Type NM].

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

Retain one shield option with Type TC-ER cable in "VFC Output Circuits" Paragraph below.

M.VFC Output Circuits: [Type XHHW-2 in metal conduit] [Type TC-ER cable or Type MC] [Type TC-ER cable with double tape shield].

Retain one of two "PV Circuits" paragraphs below.

N.PV Circuits: Type USE-2 for PV source circuits rated at 600 V or less.

O.PV Circuits: Type PV for PV source circuits rated at [600] [1000] [2000] V.

3.3INSTALLATION OF CONDUCTORS AND CABLES

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

B.Complete raceway installation between conductor and cable termination points according to Section 260533 "Raceways and Boxes for Electrical Systems" prior to pulling conductors and cables.

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.Install exposed cables parallel and perpendicular to surfaces of exposed structural members, and follow surface contours where possible.

F.Support cables according to Section 260529 "Hangers and Supports for Electrical Systems."

G.Complete cable tray systems installation according to Section 260536 "Cable Trays for Electrical Systems" prior to installing conductors and cables.

3.4CONNECTIONS

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-486B.

B.Make splices, terminations, and taps that are compatible with conductor material[ and that possess equivalent or better mechanical strength and insulation ratings than unspliced conductors].

Retain subparagraph below if aluminum conductors are specified.

1.Use oxide inhibitor in each splice, termination, and tap for aluminum conductors.

C.Wiring at Outlets: Install conductor at each outlet, with at least [6 inches (150 mm)] [12 inches (300 mm)] of slack.

3.5IDENTIFICATION

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

B.Identify each spare conductor at each end with identity number and location of other end of conductor, and identify as spare conductor.

3.6SLEEVE AND SLEEVE-SEAL INSTALLATION FOR ELECTRICAL PENETRATIONS

A.Install sleeves and sleeve seals at penetrations of exterior floor and wall assemblies. Comply with requirements in Section 260544 "Sleeves and Sleeve Seals for Electrical Raceways and Cabling."

3.7FIRESTOPPING

A.Apply firestopping to electrical penetrations of fire-rated floor and wall assemblies to restore original fire-resistance rating of assembly according to Section 078413 "Penetration Firestopping."

3.8FIELD QUALITY CONTROL

Retain one of first four paragraphs below. Retain first "Testing Agency" Paragraph below if Owner will hire an independent testing agency.

A.Testing Agency: Owner will engage a qualified testing agency to perform tests and inspections.

Retain "Testing Agency" Paragraph below to require Contractor to hire an independent testing agency.

B.Testing Agency: Engage a qualified testing agency to perform tests and inspections.

Retain "Manufacturer's Field Service" Paragraph below to require a factory-authorized service representative to perform tests and inspections.

C.Manufacturer's Field Service: Engage a factory-authorized service representative to test and inspect components, assemblies, and equipment installations, including connections.

Retain "Perform tests and inspections" Paragraph below to require Contractor to perform tests and inspection and retain option to require Contractor to arrange for the assistance of a factory-authorized service agent.

D.Perform tests and inspections[ with the assistance of a factory-authorized service representative].

Performing NETA ATS tests on all conductors and cables can be expensive. Consider limiting testing to a certain group of conductors, such as service entrance and feeder conductors, or to those conductors feeding critical equipment and services.

Retain one of first two subparagraphs below. Retain first subparagraph if only service entrance and feeder conductors need to be tested. Retain second subparagraph to test conductors feeding critical equipment specified.

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

2.After installing conductors and cables and before electrical circuitry has been energized, test [service entrance and feeder conductors] [and] [conductors] feeding the following critical equipment and services for compliance with requirements:

Delete first subparagraph below if deleting options in subparagraph above.

a.<Insert, in separate subparagraphs, critical equipment and services to be tested>.

3.Perform each of the following visual and electrical tests:

a.Inspect exposed sections of conductor and cable for physical damage and correct connection according to the single-line diagram.

b.Test bolted connections for high resistance using one of the following:

1)A low-resistance ohmmeter.

2)Calibrated torque wrench.

3)Thermographic survey.

c.Inspect compression-applied connectors for correct cable match and indentation.

d.Inspect for correct identification.

e.Inspect cable jacket and condition.

f.Insulation-resistance test on each conductor for ground and adjacent conductors. Apply a potential of 500-V dc for 300-V rated cable and 1000-V dc for 600-V rated cable for a one-minute duration.

g.Continuity test on each conductor and cable.

h.Uniform resistance of parallel conductors.

Consider the cost and benefit of infrared scanning of cable and conductor splices before retaining "Initial Infrared Scanning" Subparagraph below.

4.Initial Infrared Scanning: After Substantial Completion, but before Final Acceptance, perform an infrared scan of each splice in conductors No. 3 AWG and larger. Remove box and equipment covers so splices are accessible to portable scanner. Correct deficiencies determined during the scan.

a.Instrument: Use an infrared scanning device designed to measure temperature or to detect significant deviations from normal values. Provide calibration record for device.

b.Record of Infrared Scanning: Prepare a certified report that identifies switches checked and that describes scanning results. Include notation of deficiencies detected, remedial action taken, and observations after remedial action.

Retain "Follow-up Infrared Scanning" Subparagraph below, unless Owner will do follow-up scanning or if Project does not warrant such scanning.

5.Follow-up Infrared Scanning: Perform an additional follow-up infrared scan of each switch 11 months after date of Substantial Completion.

See Section 014000 "Quality Requirements" for retesting and reinspecting requirements and Section 017300 "Execution" for requirements for correcting the Work.

E.Cables will be considered defective if they do not pass tests and inspections.

F.Prepare test and inspection reports to record the following:

1.Procedures used.

2.Results that comply with requirements.

3.Results that do not comply with requirements, and corrective action taken to achieve compliance with requirements.

END OF SECTION 260519

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

260519 -




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