Fiberglass Cable Tray Trough Type

Fiberglass cable tray troughs are corrosion-resistant, non-conductive support systems designed for control, communication, and instrumentation cables, offering high strength, long spans, and low maintenance.Material and ConstructionFiberglass cable tray troughs are typically made from fiber-reinforced polyester or vinyl ester resins, providing excellent corrosion resistance, UV stability, and electrical insulation . Pultruded profiles or molded parts form the tray, which includes side rails and a bottom plate to protect cables while allowing some ventilation . A resin-rich surface veil is often applied to enhance corrosion resistance and provide a UV barrier .Types and DesignTrough/Channel Tray: Features a solid or semi-solid bottom with side rails, ideal for control, communication, and sensitive instrumentation cables .Low Profile (Type LC): Shallow depth (e.g., 3 inches) for lighter cable runs or control wiring .Solid Bottom Option: Ladder tray with a flat fiberglass cover bonded to the bottom for maximum protection .Load and SpanFiberglass troughs are designed to meet NEMA FG 1 safety factor requirements, typically 1.5 times the allowable working load . Pultruded profiles allow long spans, and heavier duty trays or metal-reinforced composites can be used for industrial pipe racks or outdoor installations . Load classes vary for light, medium, and heavy duty applications, and rung spacing can be customized.Fire and Electrical PerformanceFlame Rating: ASTM E-84 Class 1 and ASTM D-635 self-extinguishing standards .Electrical Insulation: Non-conductive and non-magnetic, reducing shock hazards and interference with radio, radar, or microwave signals .Environmental and Installation ConsiderationsIndoor/Outdoor Use: UV-resistant resins and optional covers protect cables from sunlight and falling debris .Corrosion Resistance: Resistant to moisture, salt spray, chemicals, and industrial fumes, reducing maintenance compared to steel trays .Weight: Approximately 1/3 the weight of steel trays, simplifying installation and lowering structural loads .Customization: Pre-drilled sections for splice plates, flange-in or flange-out siderail profiles, and optional fiberglass struts for rungs .Standards and ComplianceFiberglass cable trays are often NEMA 20C compliant, and some products meet ABS, IEC, and marine standards for harsh environments . Fire retardant and low smoke formulations are available for tunnels, public buildings, and offshore platforms .SummaryFiberglass cable tray troughs provide a durable, lightweight, and corrosion-resistant solution for routing sensitive cables in industrial, chemical, marine, and outdoor environments. They combine high load capacity, electrical insulation, and fire safety with flexible installation options, making them suitable for a wide range of applications .