The answer is simple: different cable characteristics and installation environments demand different tray designs. Cable weight, heat generation, bend radius, environmental exposure, and maintenance access all directly influence which cable tray type is technically appropriate. Cable tray systems are engineered support structures designed to route, support, and protect insulated electrical cables used for power distribution, control, instrumentation, and communication. The Cable Tray ng standards, performance standards, test standards and application in this document have been tested extens ompetent professional en completely installed, without damage either to conductors or. 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. Keeping Cool (Heat Dissipation): Cables get warm when electricity.
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