Specifications for Power and Data Cable Supports

Part 1 - General

Specifier's Note:

Section numbers and titles are from MasterFormat 2004 Edition with numbers and titles from MasterFormat 1995 Edition as well.

1.1 Section Includes:

A. Continuous, rigid, welded steel or stainless steel wire mesh cable management system.

B. Cable tray systems are defined to include, but are not limited to, straight sections, supports and accessories.

1.2 Related Documents:

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this section.

1.3 Summary:

A. Related Sections include the following:

2004 Edition

      Section 26 05 13 - Medium-Voltage Cables
      Section 26 05 19 - Low-Voltage Electrical Power Conductors and Cables
      Section 26 05 23 - Control-Voltage Electrical Power Cables
      Section 26 05 33 - Raceway and Boxes for Electrical Systems
      Section 27 05 28.36 - Cable Trays for Communications Systems
      Section 27 10 00 - Structured Cabling
      Section 28 05 13 - Conductors and Cables for Electronic Safety and Security
      Section 28 05 28.36 - Cable Trays for Electronic Safety and Security

1995 Edition

      Section 16120 - Conductors and Cables
      Section 16130 - Raceways and Boxes
      Section 16140 - Wiring Devices
      Section 16140 - Wiring Devices
      Section 16200 - Electrical Power
      Section 16700 - Communications

B. References

      IEC 61537 (2001) - Cable Tray Systems and Cable ladder Systems for Cable Management
      NEMA VE 1-2002/CSA C22.2 No. 126.1-02 - Metal Cable Tray Systems
      ANSI/NFPA 70 (2005) - National Electrical Code (NEC)
      TIA 569-A (1998) - Commercial Building Standard for Telecommunications Pathways & Spaces
      ASTM A 510 - Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel
      ASTM A 380 - Specification for Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems
      ASTM B 633 - Specification for Electrodeposited Coatings of Zinc on Iron and Steel
      ASTM A 123 - Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
      ASTM A 653 - Specification for Steel Sheet, Zinc-Coated (Galvanized) by the Hot-Dip Process, Structural (Physical) Quality
      Norm NF/A 91-131 for Galvanized Steel
      Norm NF/EN 12-329 for Electrozinc Coating
      Norm NF/EN/ISO 14-61 for Hot-Dipped Galvanized Steel
      Norm NF 10-088-2 for Stainless Steel

1.4 Submittals

A. Comply with requirements of Section 01330 - Submittal Procedures.

B. Product Data: Submit manufacturer's product data sheets for cable tray indicating dimensions, materials, and finishes, including UL Classification and NEMA/CSA Certification.

C. Shop Drawings: Submit shop drawings indicating materials, finish, dimensions, accessories, layout, supports, splices, and installation details.

D. Design Calculations: Verify loading capacities for supports.

E. Coordination Drawings: Include floor plans and sections drawn to scale. Include scaled cable tray layout and relationships between components and adjacent structural and mechanical elements. Data presented on these drawings are as accurate as preliminary surveys and planning can determine. Field verification of all dimensions, routing, etc., is directed.

F. Factory-certified test reports of specified products, complying with IEC 61537, NEC, and NEMA VE 1/CSA C22.2 No. 126.1.

G. Submit manufacturer's certification indicating ISO 9001 quality certified.

H. Submit training procedure for certifying cable tray installers.

1.5 Quality Assurance

A. Source Limitations: Obtain cable tray components through one source from a single manufacturer.

B. Approval and Labeling: Provide cable trays and accessories specified in this Section that are approved and labeled.

      The Terms "Classified" pertaining to cable trays (rather than "Listed") and "Labeled": As defined in NFPA 70, Article 100.
      Listing and Labeling Agency Qualifications: A "Nationally Recognized Testing Laboratory" as defined in OSHA Regulation 1910.7.

C. Comply with NFPA 70, National Electrical Code, Article 392: Cable Trays: provide UL Classification and labels.

D. Comply with IEC 61537, Cable Tray Systems and Cable Ladder Systems for Cable Management.

E. Comply with NEMA VE 1/CSA C22.2 No. 126.1, Metal Cable Tray Systems, for materials, sizes, and configurations: provide cCSAus Certificate and labels.

F. Provide documentation of the following certifications:

      ISO 9001 quality certification.
      American Bureau of Shipping (ABS) Product Design Assessment certification.
      Det Norske Veritas (DNV) certification.
      E 90 Fire Testing certification.
      VDE certification.

G. Provide ETL test documentation showing cable compression/deformation testing.

H. Provide military test documentation showing compliance with the following standars:

      MIL-S-901D (Navy) - Military Specification, Requirements for Shock Tests, High Impact; Shipboard Machinery, Equipment and Systems.
      MIL-STD-167-1 (Ships) - Military Standards Mechanical Vibrations of Shipboard Equipment.

1.6 Coordination

A. Coordinate layout and installation of cable tray with other installations

      Revise locations and elevations from those indicated as required to suit field conditions and as approved by the Architect.
      Storage and Handling: Avoid breakage, denting, and scoring finishes. Damaged products will not be installed. Store cable trays and accessories in original cartons and in clean dry space; protect from weather and construction traffic. Wet materials will be unpacked and dried before storage.

Part 2 - Products

2.1 Manufacturers:

Subject to compliance with requirements, provide products by the following:

A. Cablofil, Inc., 8319 State Route 4, Mascoutah, IL 62258. Phone: (618) 566-3230. Toll-Free: (800) 658-4641. Fax: (618) 566-3250. Website: Email:

B. (Approved Alternates: Select one of the following, if applicable.)

      (P-W Industries)
      (Black Box Corporation)
      (Code Electric)

2.2 Materials and Finishes

A. Cable Tray Materials: select one of the following:

      (Carbon steel wire, ASTM A 510, Grade 1008. Wire welded, bent, and surface treated after manufacture.)
      (Stainless steel wire, AISI 304L or AISI 316L, 2B, finished cold drawn wire.)

B. Cable Tray Finishes:

      Finish for Carbon Steel Wire after welding and bending of mesh; select one of the following:
        (Electrodeposited Zinc Plating: ASTM B 633, Type III, SC-1.)
        (Hot-Dip Galvanizing After Fabrication: ASTM A 123.)
          (Black powder-coated surface treatment over Electrodeposited Zinc Plating using ASA 61 black polyester coating.)
          (Custom Color Powder-Coated surface treatment over Electrodeposited Zinc Plating. Contact Cablofil for color information.)
      Finish for Stainless Steel Wire: According to ASTM B 380.

C. Cable tray will consist of continuous, rigid, welded steel wire mesh cable management system, to allow continuous ventilation of cables and maximum dissipation of heat, with UL Classified splices where tray acts as Equipment Grounding Conductor (EGC). Wire mesh cable tray will have continuous Safe-T Edge T-welded top side wire to protect cable insulation and installers.

D. Provide splices, supports, and other fittings necessary for a complete, continuously grounded system.

      Mesh: 2 x 4 inches (50 x 100 mm).
      Straight Section Lengths: 118 inches (3,000 mm).
      Wire Diameter: Patented design includes varying wire sizes to meet application load requirements; to optimize tray strength; and to allow tray to remain lightweight.
      Safe-T Edge: Patented Safe-T Edge technology on side wire to protect cable insulation and installers' hands.
      Fittings: Wire mesh cable tray fittings are field-fabricated from straight tray sections, in accordance with manufacturer's instructions and Item 2.3.
      CF Series Cable Tray Size:
        Depth: Cable tray depth will be (unless otherwise shown on drawings):
          (1 inch (30 mm))
          (2 inches (54 mm))
          (4 inches (105 mm))
          (6 inches (150 mm))
        Width: Cable tray width will be (unless otherwise shown on drawings):
          (2 inches (50 mm))
          (4 inches (100 mm))
          (6 inches (150 mm))
          (8 inches (200 mm))
          (12 inches (300 mm))
          (18 inches (450 mm))
          (20 inches) (500 mm))
          (24 inches) (600 mm))
        Length: Cable tray length will be 118 inches (3000 mm) unless otherwise shown on drawings.
        Fill Ratio: Cable tray may be filled to (40%) (50%) (60%) (100%) of total fill capacity. Size cable tray to accomodate future cabling changes or additions.
        Load Span Criteria:
          Install and support cable management system in accordance with one of the following:
            (IEC 61537, with load span criteria of L/200 (to exceed standard requirements of L/100) and a Safety factor of 1.7)
            (NEMA VE-1 (2002), with a Safety Factor of 1.5)
          Cable tray will be capable of carrying a uniformly distributed load of _____ pounds per foot on a _____ support span, according to load tests of standard shown in Item A above.
      Other cable tray options; select if applicable.
        (Cablofil Easy Pack: Ready-to-install 78" (2000 mm) lengths of CF Series Cable Tray with Preclick Splices and all associated hardware.)
        (CFG Series: G-shaped cable tray for direct attachment or for use in small spaces.)
        (FCF Fasctic: CF Series Cable Tray with pre-mounted fast splice.)
        (CFL Series: CF Series Cable Tray with one bend for beam attachment.)
        (Telex Rail: TXF Series Cable Tray; cover and supports also available.)

2.3 cable Tray Supports & Accessories

A. Fittings/Supports: Wire mesh cable tray fittings are field-fabricated from straight tray sections, in accordance with manufacturer's instructions. Supports will include the FAS (Fast Assembly System) where possible so that screws, bolts, and additional tools are not required for cable tray mounting; installation time is reduced; and tray path can adapt to installation obstacles without the need for additional parts. Place supports so that support span does not exceed that shown on the drawings.

      Use UL Classified splicing methods as recommended by Cablofil.
        Ground cable trays at end of continuous run.
        Ground continuous cable tray runs every 60 feet.
      Cable trays that are not UL Classified will be grounded per NEC requirements and manufacturer recommendations.
        Ground cable trays against fault current, noise, lightning, and electromagnetic interference by mounting grounding wire to each 10' cable tray section with grounding clamp, Cablofil Model GNDCL.

Part 3 - Execution

3.1 Examination

A. Examine substrates for compliance with requirements for installation tolerances and other conditions affecting performance of cable trays. Do not proceed with installation until unsatisfactory conditions have been corrected.

3.2 Installation

A. Install cable tray level and plumb according to manufacturer's written instructions, Coordination Drawings, original design, and referenced standards.

      Cutting: Field-fabricate changes in direction & elevation by cutting & bending cable tray.
        Cut cable tray wires in accordance with manufacturer's instructions.
        Cable tray wires must be cut with side-action bolt cutters with offset head to ensure integrity of protective galvanic layer.
        Remove burrs and sharp edges from cable trays.
      Certified Installers: Cable tray installers must have successfully completed Cablofil's Certified Installer program.