What are Cable trays? Cable tray materials and Type of Cable trays
What are cable trays? Cable trays are rigid structures used to support and raceways the cables. The National Electrical Code (NEC) specifies the cable tray type to be used. Cable trays are capable of supporting all types of wiring, such as: High voltage power lines Power Distribution lines Optical lines Telecom and control lines Cable tray wiring systems are the preferred wiring system when evaluated against equivalent conduit wiring systems in terms of safety, reliability, space and cost. -------------------------------------------------------------------------------------------------------------------------------------------- Cable tray materials used: The material selection for the cable tray is based on the purpose and coatings are provided on purpose. Aluminium: Aluminium trays are lightweight and used because of high strength-to-weight ratio. The advantage of using aluminium is that it is maintenance free. Steel: Steel trays gives mechanical s...