AVAILABLE SIZES AND SPECIFICATIONS
Per the National Electrical Code, a cable tray system is "a unit or assembly of units or sections and associated fittings forming a rigid structural system used to securely fasten or support cables and raceways."
What does this mean ?
- Cable trays support cable the way that roadway bridges support traffic.
- A bridge is a structure that provides safe passage for traffic across open spans.
- Cable tray is the bridge that allows for safe transport of wires across open spans.
- Therefore, think of cable tray as the structural component of a building’s electrical system.
1. Ladder Cable Tray provides:
- Solid side rail protection and system strength with smooth radius fittings and a wide selection of materials and finishes.
- maximum strength for long span applications standard widths of 6,12,18, 24, 30, and 36 inches
- standard depths of 3, 4, 5, and 6 inches
- standard lengths of 10, 12, 20 and 24 feet
- rung spacing of 6, 9, 12, and 18 inches
Ladder cable tray is generally used in applications with intermediate to long support spans, 12 feet to 30 feet.
2. Solid Bottom Cable Tray provides:
- Nonventilated continuous support for delicate cables with added cable protection available in metallic and fiberglass.
- Solid bottom metallic with solid metal covers for nonplenum rated cable in environmental air areas
- standard widths of 6, 12, 18, 24, 30, and 36 inches
- standard depths of 3, 4, 5, and 6 inches
- standard lengths of 10, 12, 20 and 24 feet
Solid Bottom cable tray is generally used for minimal heat generating electrical or telecommunication applications with short to intermediate support spans of 5 feet to 12 feet.
3. Trough Cable Tray provides:
- Moderate ventilation with added cable support frequency and with the bottom configuration providing cable support every 4 inches. Available in metal and nonmetallic materials.
- standard widths of 6, 12, 18, 24, 30, 36 inches
- standard depths of 3, 4, 5, and 6 inches
- standard lengths of 10, 12, 20 and 24 feet
- fixed rung spacing of 4 inch on center
Trough cable tray is generally used for moderate heat generating applications with short to intermediate support spans of 5 feet to 12 feet.
4. Channel Cable Tray provides:
- an economical support for cable drops and branch cable runs from the backbone cable tray system.
- standard widths of 3, 4, and 6 inches in metal systems and up to 8 inches in nonmetallic systems.
- standard depths of 1?1?inches in metal systems and 1, 1 1/8, 1 5/” and 2 3/16 inches in nonmetallic systems
- standard length of 10, 12, 20 and 24 feet
Channel cable tray is used for installations with limited numbers of tray cable when conduit is undesirable. Support frequency with short to medium support spans of 5 to 10 feet.
5. Wire Mesh Cable Tray provides:
- A job site, field adaptable support system primarily for low voltage, telecommunication and fiber optic cables. These systems are typically steel wire mesh, zinc plated.
- standard widths of 2, 4, 6, 8, 12, 16, 18, 20, and 24 inches
- standard depths of 1, 2, and 4 inches
- standard length of about 10 feet (118″)
Wire Mesh tray is generally used for telecommunication and fiber optic applications and are installed on short support spans, 4 to 8 feet.
6. Single Rail Cable Tray provides:
- These aluminum systems are the fastest systems to install and provide the maximum freedom fort cable to enter and exit the system.
- Single hung or wall mounted systems in single or multiple tiers.
- Standard widths are 6, 9, 12, 18, and 24 inches.
- Standard depths are 3, 4, and 6 inches.
- Standard lengths are 10 and 12 feet.
Single Rail Cable Tray is generally used for low voltage and power cables installations where maximum cable freedom, side fill, and speed to install are factors.
FIBER GLASS CABLE TRAYS (FRP)
Our perforated type Cable Tray provides reliable cable support in the corrosive application. Both Polyester & Vinyl ester resin systems are available & all components incorporating U.V. Stabilizer & a surfacing veil to resist corrosive atmosphere.
From power plants to fertilizer industries, paper mills to refineries to laboratories, the sound electrical design requires an adaptable cable support system that is reliable. Above all, durability & resistance to corrosion lead to lower costs during the life of the installation.
Features
- Corrosion resistance
- Strength & durability
- Fire Redundant
- Light Weight
- U.V. Stabilities
- Long life
Applications
- Chemical Plants
- Power Plants
- Effluent Treatment Plants
- Offshore Platforms
- Paper Plants
- Refineries
Standard applicable
- IS 6746 -1994 Specs for Unsaturated Polyester Resin system for Low Pressure Fiber Reinforced Plastics.
- NEMA FG 1 1984- 1993 [current issue] Specification for fiberglass Tray system -Loading Characteristics.
- IS -6746-Appendix - K/UL 94 Flame Retardant [law flammability].
Technical details
- Side Member FRP Pultruded 'C' Section.
- Rung Sq. Hollow tube 25mm x25mm
Accessories / Fittings
- All fitting are pre fabricated & will be same specification as of straight trays.
Connection / Coupler plate & splice plates
- FRP Stainless steel Splice plates of various Type ie. straight as well as adjustable for angle This plates should be installed between .2&.3 of the length of span of the support Fastner of SS 316 shall be provided of 6mm/ 8mmdiameter.
Typical properties of pultruded sections
- ASTM -D-2863- Oxygen index -30%.
- ASTM- D -635 - Flame Spread [ Extent of burring]-25mm.
- ASTM -D- 638 - Tensile Strength at break - 30,000 PSI.
- ASTM- D - 790- Flexural Strength at break -30,000PSI.
- ASTM- D- 256- Izod Impact Strength - 25 Ft - LBS.
- ASTM- D- 149- Electric Strength short term Oil - 35 Kv / inch.
Corrosion resistance of resin system
Two standard composites resin system are available. For most of the application isopthlic Polyester fire retardant [FR-P] is widely used. A vinyl ester composites fire retardant resin system [FR-VE] is used where strong acid [ like hydrochloric acide] , strong alkalis [ Caustic Soda], organic solvent and halogenated organic conditions exits. Sumip fiberglass cable tray incorporates a synthetic veil on the surface of all structural shapes which causes a resin rich layer which enhances corrosion protection. A abbreviated guide can be provided on request to assist in the selection of the proper resin system for individual application.
