A cable tray is a structural system used to support insulated electrical cables used for power distribution, communication, and control. It provides a secure pathway that prevents cable damage, simplifies maintenance, and reduces the risk of overheating. However, they offer limited ventilation, so they may not be ideal for high-heat applications unless heat-resistant cables are used. protection of solid bottom trays. They are designed to accommodate and support multiple cables, providing a systematic approach to wiring. A cable tray is a unit, or set of units, with their fittings forming a rigid structure to support cables and assist in channeling them. A complete system is made up of.