Huijue Fireproof Cable Tray Models and Specifications

Huijue fireproof cable trays are designed to maintain circuit integrity under fire conditions, with specifications depending on material, load, and installation environment.Material and ConstructionHuijue fireproof cable trays are typically made from steel (galvanized or stainless), aluminum alloys, or fiberglass-reinforced plastic (FRP/GRP), depending on the installation environment . Steel trays offer high mechanical strength and moderate fire resistance, while FRP/GRP trays provide excellent corrosion resistance and lower thermal conductivity, which enhances fire performance . Aluminum trays are lightweight and corrosion-resistant but may have lower fire endurance compared to steel.Fire ResistanceFireproof cable trays are rated to maintain circuit integrity for a specified duration, commonly 30 to 120 minutes, depending on the tray type and coating . Fireproofing is achieved through special coatings, insulation layers, or integrated fire-resistant materials. Regular inspection is required to ensure the integrity of coatings and seals, especially for outdoor or high-humidity installations .Dimensions and Load CapacityTray Width and Thickness: Selected based on the number, size, and weight of cables. Wider trays accommodate more cables, while thickness ensures mechanical strength under full load .Rung Spacing: For ladder-type trays, a spacing of 150–230 mm (6–9 inches) is recommended to support cables and maintain proper bend radius .Mechanical Strength: Trays must resist deformation under full cable load, including dynamic loads during installation or maintenance .Installation GuidelinesRouting: Align trays with building structure, avoiding unnecessary bends, detours, or overlaps with other pipelines .Segregation: Power and signal cables should be separated to minimize electromagnetic interference .Supports: Use appropriate hangers or brackets to maintain tray stability and prevent sagging. Supports are typically spaced according to tray width and load.Inspection: Periodic checks for rust, UV damage, or coating degradation are essential for maintaining fireproof performance .Environmental ConsiderationsIndoor Use: Painted or galvanized steel trays are common.Outdoor or Corrosive Environments: Hot-dip galvanized steel, stainless steel, aluminum alloys, or FRP/GRP trays are preferred .High Humidity or Chemical Exposure: FRP/GRP trays provide superior corrosion resistance and maintain fireproof properties over time .SummaryHuijue fireproof cable trays combine material selection, fire-resistant coatings, and structural design to ensure safe cable management under fire conditions. Key parameters include material type, fire rating, tray width and thickness, rung spacing, load capacity, and installation environment. Proper installation and regular inspection are critical to maintain fireproof performance and system reliability .