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New Zealand Fireproof Cable Tray Specifications and Dimensions

New Zealand Fireproof Cable Tray Specifications and Dimensions

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Fireproof cable trays in New Zealand are available in steel and FRP constructions, compliant with AS/NZS 3013 and DIN 4102-12 standards, with dimensions and load capacities tailored for industrial and commercial applications.

Types and Materials

FRP (Fiber Reinforced Plastic) Cable Trays

  • Lightweight, non-corrosive, fireproof, and UV-resistant, suitable for harsh environments in New Zealand and Australia .
  • Available in ladder and solid tray designs, with ventilated options for airflow and heat dissipation .
  • Covers can be peaked or flat, engineered for a 50-year design life, ensuring long-term protection against fire, water, and debris .
  • Accessories include tees, crosses, bends (45° and 90°), couplers, reducers, and splice plates for flexible installation . Steel Cable Trays
  • Pre-galvanized or hot-dip galvanized steel, optionally powder-coated .
  • Suitable for power, data, and audiovisual cabling, with easy access for maintenance .
  • Can be integrated with BIM-enabled 2D and 3D CAD designs for planning and installation .

Fire Resistance Standards

  • AS/NZS 3013: Specifies fire and mechanical damage resistance for cable systems in Australia and New Zealand .
  • DIN 4102-12: German standard for fire testing of complete cable tray systems, including wire ropes and accessories, with classifications E30, E60, and E90 indicating minutes of fire resistance .
  • Example: X-Tray cable trays are E90 certified, tested at 1000°C for 90 minutes, ensuring continued operation of critical systems like alarms, emergency lighting, and sprinklers during fire .

Dimensions and Load Capacities

  • Tray widths commonly range from 100 mm to 600 mm, with deflection data provided for continuous spans .
  • FRP trays are designed for light single wiring systems and light pneumatic tubing loads, with pre-drilled straight sections for rapid installation .
  • Steel trays can be customized for specific load requirements, with physical test results guiding deflection limits .
  • Penetration and spacing requirements for fireproof installations: services should maintain minimum 25 mm from seal edges, and total cross-section of services should not exceed 60% of the penetration area .

Installation Considerations

  • FRP trays allow pre-assembled fittings for faster installation and uninterrupted operation .
  • Steel trays follow NEMA guidelines for continuous spans and deflection limits .
  • Fireproof board systems (e.g., Protecta FR Board) require sealing of cut edges with Protecta FR Acrylic to maximize fire resistance .

Summary

New Zealand fireproof cable trays are available in FRP and steel, with solid or ventilated designs, engineered for fire resistance, corrosion protection, and long-term durability. They comply with AS/NZS 3013 and DIN 4102-12 standards, with widths from 100 mm to 600 mm, and include a full range of fittings and accessories for flexible installation in industrial and commercial environments .

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