Ladder cable tray cannot pipe hazardous or explosive gasses from one area to another as happens with conduit systems. Solid side rail protection and system strength with smooth radius fitting. Standard widths of 150,300,450, 600, 750 and 900 millimetres are available. The tray can allow free flow of air through it. Stainless steel cable tray is roll-formed from AISI Type 316 stainless steel. Stainless steel: It has the high mechanical strength and high ambient temperature. Steel: Steel trays gives mechanical strength and low cost but has a high weight. The advantage of using aluminium is that it is maintenance free. The material selection for the cable tray is based on the purpose and coatings are provided on purpose.Īluminium: Aluminium trays are lightweight and used because of high strength-to-weight ratio. Cable trays are capable of supporting all types of wiring, such as:Ĭable tray wiring systems are the preferred wiring system when evaluated against equivalent conduit wiring systems in terms of safety, reliability, space and cost. The National Electrical Code (NEC) specifies the cable tray type to be used. Cable-tray-900圆75 900×675 186 KB What are cable trays?Ĭable trays are rigid structures used to support and raceways the cables.
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