WBT

SECTION 16xxx

WBT PRODUCT GUIDE SPECIFICATION

PART 1  GENERAL

1.01 SECTION INCLUDES

1. The work covered under this section consists of the furnishing of all necessary materials, labor, supervision, equipment and services to install complete wire basket cabletray system as shown on the drawings.
2. Wire basket cabletray is defined to include, but are not limited to straight sections of continuous wire mesh, splices, field formed horizontal and vertical bends, tees, drop outs, supports and accessories.

1.02 REFERENCES

1. ANSI/NFPA 70 – National Electrical Code.
2. ASTM B 633 – Specification for Electrodeposited Coatings of Zinc on Iron and Steel
3. ASTM A 653 – Specification for Steel Sheet, Zinc-Coated (Galvanized) by the Hot Dip Process
4. ASTM A 123 – Specification for Zinc (Hot Galvanized) Coatings on Iron and Steel
5. ASTM A 510 – Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel
6. NEMA VE 1-2002 – Metal Cable Tray Systems
7. NEMA VE 2-2006 – Cable Tray Installation Guidelines
8. ASTM  A 641 – Standard Specification for Zinc-Coated (Galvanized) Carbon Steel Wire
9. ASTM A 580 – Standard Specification for Stainless Steel Wire
10. ASTM D 769 – Standard Specification for Black Oxide Coatings
11. Section 26 05 13 – Medium-Voltage Cables.
12. Section 26 05 19 – Low-Voltage Electrical Power Conductors and Cables.
13. Section 26 05 23 – Control-Voltage Electrical Power Cables.
14. Section 26 05 33 – Raceway and Boxes for Electrical Systems.
15. Section 27 11 23 – Communication Cable Management & Ladder Racks.
16. Section 26 05 36 – Cable Trays for Electrical Systems.
17. Section 27 02 58.36 – Cable Trays for Communication Systems.
18. Section 28 05 13 – Conductors and Cables for Electronic Safety and Security.
19. Section 28 05 28.36 – Cable Trays for Electronic Safety and Security.
20. TIA 569-A – Commercial Building Standard for Telecommunications Pathways & Spaces
21. NFPA 70 (2005) – National Electrical Code (NEC)
22. CSA C22.2 No. 126. 1-02 – Metal Cable Tray Systems
23. IEC 61537 (2001) – Cable Tray Systems and Cable Ladder Systems for Cable Management
24. TIA -942 Data Center Standard

1.03 DRAWINGS

1. The drawings, which constitute a part of these specifications, indicate the general route of the wire basket cabletray system.  Data presented on these drawings is as accurate as preliminary surveys and planning can determine until final equipment selection is made.  Accuracy is not guaranteed and field verification of all dimensions, routing, etc., is required.
2. Specifications and drawings are for assistance and guidance, but exact routing, locations, distances and levels will be governed by actual field conditions.  Contractor is directed to make field surveys as part of his work prior to submitting system layout drawings.

1.04 SUBMITTALS

1. Submittal Drawings: Submit Product data and drawings of wire basket cabletray and accessories including straight sections, splice hardware, mounting accessories showing accurately scaled components.  Drawings to verify UL / C-UL classifications
2. Product Data: Submit manufacturer’s data on wire tray sections and support system including, but not limited to, types, materials, finishes, loading information, fill rates and product dimensions.

1.05 QUALITY ASSURANCE

1. NEC Compliance: Comply with NEC, as applicable to construction and installation of cable tray and cable channel systems (Article 318, NEC).
2. NFPA Compliance Comply with NFPA 70B, “Recommended Practice for Electrical Equipment Maintenance” pertaining to installation of cable tray systems.

1.06 DELIVERY, STORAGE AND HANDLING

1. Deliver wire tray sections and accessories carefully to avoid breakage, bending and scoring finishes.  Do not install damaged equipment.
2. Store wire basket and accessories in original cartons and in clean dry space; protect from weather and construction traffic.

PART 2  PRODUCTS

2.01 ACCEPTABLE MANUFACTURERS

1. Manufacturer:  Subject to compliance with these specifications, wire basket tray systems to be installed shall be as manufactured by WBT.

2.02 WIRE TRAY SECTIONS AND COMPONENTS

1. General: Provide wire basket of types and sizes indicated; with all required splicing and mounting hardware.  Construct units with T-weld edges and smooth surfaces; in compliance with applicable standards; and with the following additional construction features.
2. Materials and Finishes:  Material and finish specifications for Carbon Steel Wire, Pre-Galvanized Steel Wire and Stainless Steel Wire are as follows:
   1. Pre-Galvanized Zinc:  Straight section shall be made from pre-galvanized steel meeting the minimum mechanical properties of ASTM A 641.  Material must be cleaned after fabrication to remove any soot, manufacturing residue/oils, or metallic particles
   2. Powder Coat: Straight sections shall be powder coated black with an average paint thickness of 1.2mils (30microns) to 3.0mils (75microns).  WBT Powder Coat is masked at splice points to allow conductive ground design; no field paint removal is required.
   3. Stainless Steel: Straight sections and accessories shall be made from AISI Type 304L, 316L Stainless Steel (meeting the minimum mechanical properties of ASTM A 580).
   4. Electro-Plated Zinc Galvanized (Post Plated) Made from Carbon Steel and plated to ASTM B 633, Type III, SC-1.
   5. Black Oxide:  Certain support accessories and miscellaneous hardware shall be manufactured with a black oxide finish in accordance with ASTM D 769.

2.03 TYPE OF WIRE BASKET SUPPORT SYSTEM

1. All straight section longitudinal wires shall be constructed with a continuous   top wire safety edge.  Safety edge must be T-welded on all tray sizes.
2. Wire basket crosswire to be constructed with shaped wire to provide flat surface for cable support, avoiding pressure points or cable strain.  Round wire construction allowed per engineers approval.
3. Wire basket shall be made of high strength steel wires and formed into a standard 2 inch by 4 inch wire mesh pattern with intersecting wires welded together.  All mesh sections must have at least one bottom longitudinal wire along entire length of straight section.
4. Wire basket sizes shall conform to the following nominal criteria:
   1. Straight sections shall be furnished in standard 118 inch lengths or 142 inch length dependant on engineers/project specifications.
   2. Wire diameter shall be 0.195” (5mm) minimum on all mesh sections up to 16 linear inches. Wire diameter linewire shall be 0.234” (6mm) minimum on all mesh sections in excess of 16 linear inches. Wire diameter shall be minimum size of 4.5mm on stainless steel.
   3. Wire basket shall have a 2 inch usable loading depth by (4), (6), (8), (10), (12), (14), (16), (18), (20), (22), (24), (26), (28), (30), (32) inches wide.
   4. Wire basket shall have a 4 inch usable loading depth (4), (6), (8), (10), (12), (14), (16), (18), (20), (22), (24), (26), (28) inches wide.
   5. Wire basket shall have a 6 inch usable loading depth by (8), (10), (12), (14), (16), (18), (20), (22), (24) inches wide.
   6. Wire basket shall have an 8 inch usable loading depth by (8), (10), (12), (14), (16), (18), (20) inches wide.
5. All fittings shall be field formed, from straight sections, in accordance with           manufacturer’s instructions.
6. All Tray sections and splicing assemblies shall be UL/C-UL Classified as an Equipment Ground Conductor (EGC).
7. WBT-U DataCenter Solutions [Appendix A]
8. Wire tray supports shall be manufactured by WBT. [Appendix B]
9. Product Key:  WBT(depth) x (width) x (length)(finish).  WBT2×12x12 is 2” deep, 12” wide and 12’ long.
10. Special accessories shall be furnished as required to protect, support and install a wire basket support system.

PART 3  EXECUTION

3.01 INSTALLATION

1. Install wire basket as indicated; in accordance with recognized industry practices (NEMA VE-2 2000), to ensure that the cable tray equipment complies with requirements of NEC, and applicable portions of NFPA 70B and NECA’s “Standards of Installation” pertaining to general electrical installation practices.
2. Coordinate wire basket with other electrical work as necessary to properly interface installation of wire basket runway with other work.
3. Provide sufficient space encompassing wire basket to permit access for installing and maintaining cables.

3.02 TESTING

1. Test wire basket support systems to ensure electrical continuity of bonding and grounding connections, and to demonstrate compliance with specified maximum grounding resistance.  See NFPA 70B, Chapter 18, for testing and test methods.

APPENDIX A

WBT-U UNDERFLOOR/RAISED FLOOR/DATACENTER

1. Independent Underfloor Support

   Does not place any load on Raised Floor components. Works with both standard and Seismic flooring installations.
   WBTUST (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30)

   WBTUS (WIDTH)

   Standard Finish: Galv

2. Underfloor Fitting

   Intersection Kit

   WBTUSFITTING

   Standard Finish: Galv

3. Tray

   Standard tray lengths from 2’ to 8’. No tools for installation. UL Classified and no Zinc whisker issues.

   Wire basket shall have a 2 inch usable loading depth and is available in widths of (6), (12), (22) inches. Lengths available in (2), (4), (6), (8) feet

   Wire basket shall have a 4 inch usable loading depth and is available in widths of (6), (12), (22) inches. Lengths available in (2), (4), (6), (8) feet

   Wire basket shall have a 6 inch usable loading depth and is available in widths of (6), (12), (22) inches. Lengths available in (2), (4), (6), (8) feet

   Wire basket shall have a 8 inch usable loading depth and is available in widths of (6), (12), (22) inches. Lengths available in (2), (4), (6), (8) feet

   Larger loading depth tray available upon request.

WBT-U ACCESSORIES

1. Underfloor C Bracket

   Allows multiple tiered installations
   WBT-U Underfloor C bracket (6, 12)

   WBTU(6/8)C

   Standard Finish: Galv

2. Ground/Hold Down Clip

   Attaches the tray sections to the Underfloor supports. Required if system is to be UL/C-UL classified.

   WBTUHDG

   Standard Finish: Galv

3. Vertical Up

   Installed to transition cabling from tray up into cabinets or racks.

   VERTICAL UP

   Standard Finish: Galv

APPENDIX B

OVERHEAD/CEILING MOUNT HARDWARE

1. Center Support

   Installs with Single threaded rod to allow loading from both sides of the tray. Built in tabs secure tray to hardware. Accepts up to ½” threaded rod

   WBT CENTER SUPPORT (4, 6, 8, 12, 16, 18, 20 and 24 inch widths)

   CENTER SUPT (WIDTH)

   Standard Finish: Galv, Zinc, Black, Pewter & Custom

2. Ceiling Support

   Provides a full bottom support of tray. Installs with 2 threaded rod.

   WBT CEILING SUPPORT (12, 14, 16, 18, 20, 22, 24, 26, 28. 30, and 32 inches)

   CEILING SUPT (WIDTH)

   Standard Finish: Galv, Zinc, Black, Pewter & Custom

3. Trapeze Support

   Supports both sides of tray from the vertical edges.

   TRAP SUPT

   Standard Finish: Galv, Zinc, Black, Pewter & Custom

WALL MOUNT HARDWARE

1. Wall / Shelf Support

   Most secure wall mount of tray up to 24” width

   SHELF SUPT (4, 6, 8, 12, 16, 18, 20, 24)

   SHELF SUPT (WIDTH)

   Standard Finish: Galv, Zinc, Black, Pewter & Custom

2. L Bracket

   Attaches tray to vertical/wall surface

   L BRACKET (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24)

   WALL BRACKET (WIDTH)

   Standard Finish: Galv, Zinc, Black, Pewter & Custom

3. C Bracket

   Attaches tray to vertical/horizontal surface

   C BRACKET (4, 8, 12, 18)

   C BRACKET (WIDTH)

   Standard Finish: Galv, Zinc, Black, Pewter & Custom

SPLICE HARDWARE

1. Splice Kit

   Splices straight sections and fittings

   SPLICE KIT

   Standard Finish: Zinc, Black

2. Bar Splice

   Used to splice straight sections and fittings

   BAR SPLICE

   Standard Finish: Zinc, Black

3. Corner Splice

   Used to Splice tray intersections and corners

   CORNER SPLICE

   Standard Finish: Zinc, Black

ACCESSORIES

1. WBTform

   Splices straight sections and fittings

   WBTFORM

   Standard Finish: Black

2. Cover

   Metal cover for tray sections. 5’ length

   COVER (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24)

   COVER (WIDTH)

   Standard Finish: Galv, Black

3. Insert

   Metal insert for tray sections. 5’ length

   INSERT (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24)

   INSERT (WIDTH)

   Standard Finish: Galv, Black

4. Divider

   Metal divider for tray sections. 5’ length

   DIVIDER (2, 4, 6)

   INSERT (DEPTH)

   Standard Finish: Galv, Black

5. Termination Support

   Multipurpose for tray support or termination

   TERM SUPPORT (2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24)

   TERM SUPT (WIDTH)

   Standard Finish: Galv, Zinc, Black

6. Cable Guide

   Divider/Guide for tray

   CABLE GUIDE

   Standard Finish: Black

7. Vertical Down

   Transition for cable down from tray end/sides

   VERTICAL DOWN

   Standard Finish: Galv, Black

8. Fitting Attachment

   Fills gap in tray bends and configurations

   FITTING ATTACHMENT (2, 4/6)

   FITTING ATTACHMENT (2, 4/6)

   Standard Finish: Galv

9. Rack Attachment

   Secures Tray to Standard Racks

   RACK ATTACHMENT

   Standard Finish: Galv, Black

10. Vertical Down

    Transition for cable down from tray end/sides

    VERTICAL DOWN

    Standard Finish: Galv, Black

11. Label

    Polymer Clip for cabletray identification

    Label

    Standard Finish: White

12. Cutting Tool

    Tool for making cuts in straight sections for configuration

    CUTTING TOOL

    Standard Finish: N/A