Frequently Asked Questions

• Q

  How to choose among solid tray, ladder tray and perforated tray?
  A

  Choose solid tray for weak current, computer rooms, dusty/humid sites and anti-interference demands; ladder tray for thick cables, high-power power circuits and workshops prioritizing heat dissipation; perforated tray for general workshops, mixed strong/weak current laying and cost control.
• Q

  Which surface treatment for indoor and outdoor use respectively?
  A

  Electro-galvanized / fire retardant coated for dry indoor; hot-dip galvanized for outdoor & damp underground; 304 stainless steel or FRP for coastal and corrosive chemical environments.
• Q

  What is the difference between national standard and non-standard cable trays?
  A

  National standard products strictly comply with standards on wall thickness, dimension and load capacity, passing acceptance of government, real estate and large bidding projects. Non-standard ones adopt thinner plates or customized sizes at lower prices, only suitable for small renovation without formal bidding requirements.
• Q

  How much space should be reserved for cables inside the tray?
  A

  According to industry codes, total cross-sectional area of cables shall not exceed 40% of the tray’s inner section to reserve space for heat dissipation and future cable expansion, avoiding overheating and short circuit.
• Q

  Cable trays are easy to deform during transportation, how do you guarantee product integrity?
  A

  Products are reinforced before shipment. Long trays are cut into segments and fixed with wooden frames for bulk orders. Free replacement of accessories or negotiated return & exchange for deformed goods received.