Installation of Burundi Trough-type Fireproof Cable Trays

Burundi Trough-type fireproof cable trays should be installed following precise layout, material, and fireproofing standards to ensure safety, reliability, and compliance.Planning and LayoutRoute Coordination: Align cable tray routes with the building structure, avoiding unnecessary crossings, detours, or interference with other pipelines .Shortest and Straightest Path: Minimize cable length to reduce voltage drop and simplify maintenance .Segregation: Separate power (high-voltage) and signal (low-voltage) cables using dedicated trays to prevent electromagnetic interference .Support Spacing: Ensure supports are installed at intervals recommended by the manufacturer to prevent sagging or deformation.Tray Material and TypeIndoor Use: Painted steel or galvanized steel trays are recommended .Outdoor or Corrosive Environments: Use hot-dip galvanized steel, stainless steel, aluminum alloy, or fiberglass-reinforced plastic trays .Mechanical Strength: Select tray width and thickness according to cable weight and quantity to prevent deformation under full load .Fireproofing: Use trays with fire-resistant coatings or integrate fireproofing products such as FLAMMOTECT-A or DG-CR 0.7 tape to enhance fire resistance .Installation RequirementsAlignment: Maintain horizontal deviation ≤2 mm per meter and vertical deviation ≤3 mm per meter; trays must be level, plumb, and securely mounted .Firestopping at Penetrations: Seal all wall, floor, and slab penetrations with fire-rated boards, firestop packs, mineral wool, or intumescent caulks. Ensure gaps around cables do not exceed 1 cm² and packing thickness is at least 24 cm .Waterstop: For floor-level or slab penetrations, provide a waterstop of at least 50 mm and a fire-support plate at the top .Cover Plates: Use square, evenly painted cover plates to close openings and maintain fire integrity .Fireproofing Products and TechniquesIntumescent Caulks: Products like IC 15WB caulk expand under heat to seal gaps and prevent fire spread .Fire Barrier Putty: 3M Fire Barrier Moldable Putty+ can be used for through-penetrations, including cables and conduits .Coatings and Tapes: Apply fire-resistant coatings or tapes around cable trays to prevent flame propagation and maintain cable functionality during fire .Maintenance and SafetyInspection: Regularly inspect trays for mechanical integrity, corrosion, and fireproofing condition.Accessibility: Ensure layout allows easy access for maintenance and cable replacement.Environmental Protection: For outdoor installations, consider UV, moisture, and chemical resistance of tray materials and fireproofing products . By following these guidelines, Burundi Trough-type fireproof cable trays can be installed safely, ensuring structural integrity, fire resistance, and reliable electrical performance in industrial and commercial environments .