Cable Weight: Opt for ladder-type cable tray for heavy cables; perforated type cable tray for lighter ones. The rungs are typically spaced at 6 in, 9 in, or 12 in intervals. Each cable tray type performs a different function and comes in various materials such as aluminum, galvanized steel, and FRP. Perforated Type of Cable Tray: These trays have a solid base and evenly spaced holes or slots, providing moderate cable. This type of cable tray is effective because the ladder rungs give you easy accessibility to the cables, from the top or bottom. A Cable Tray is standard in case the cables are medium-weight and require protection. Ladder type cable tray, also called cable ladder or HDG cable ladder, is the most economical cable tray which is made with prefabricated C channel metal structure processed by galvanised and hot dipped galvanised method and connected by parallel transverse rungs to provide maximum ventilation in.
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