Fireproof Trapezoidal Cable Tray Specifications

Trapezoidal fireproof cable trays are available in various widths, heights, and materials, designed for high load-bearing capacity and fire resistance in industrial and commercial installations.

General Specifications

Trapezoidal cable trays are designed to support and protect electrical cables while providing efficient heat dissipation and fire resistance. They are commonly used in high-rise buildings, factories, power plants, and hazardous environments. Key specifications include: Material Options: Hot-dip galvanized steel, stainless steel, pre-galvanized steel, powder-coated steel, and flame-retardant fiberglass (FRP) ( ).

Surface Treatments: Anodized, passivated, anti-corrosion paint, or epoxy-based fireproof coatings ( ). Fireproofing: Epoxy-based intumescent coatings or flame-retardant additives in fiberglass trays form an insulating char layer under high temperatures, reducing heat transfer and protecting cables ( ).

Dimensions

Trapezoidal cable trays are available in a wide range of sizes to accommodate different cable capacities: Width: 50 mm to 600 mm ( )Side Rail Height: 50 mm to 200 mm ( )Tray Thickness: 0. 5 mm to 3 mm depending on material and load requirements ( )Length: Typically 1 m to 10 m per section ( )Load and Cable CapacityWorking Load: Up to 200 kg per tray section ( )Cable Capacity: Can accommodate up to 75 cables depending on diameter and tray width ( )Structural Reinforcement: Internal metal plates or fiberglass reinforcement ensure long-span stability and prevent deformation under load ( ). Standards and ComplianceNEC Compliance: Cable trays must meet National Electrical Code (NEC) requirements for ampacity and cable spacing ( ).

Certifications: CE, ISO, UL, and other regional certifications may apply depending on manufacturer and material ( ). Installation Accessories: Compatible with elbows, brackets, cow legs, and covers for complete cable management systems ( ).

Applications

Trapezoidal fireproof cable trays are suitable for: Power infrastructure and auxiliary systems in nuclear and industrial facilities ( )High-risk fire environments such as chemical plants, oil refineries, and substations ( )General industrial and commercial installations requiring corrosion resistance, insulation, and fire safety ( ). These trays provide a robust, fire-resistant, and versatile solution for cable management, ensuring both operational safety and long-term durability.