Tray-rated cables came about when failures on power and communications cables were becoming quite common. This occurred mainly when smaller cables were placed under larger cables and the environments were too rugged for some of the cables and didn’t meet testing standards. Tray-rated cable can be used for signal, control, and power. When researching tray cable, there are a few different types to choose from. These types include, Tray Cable (TC), Power Limited Tray Cable (PLTC), Instrumentation Tray Cable (ITC), Exposed Run (ER), and Wind Turbine Tray Cable (WTTC).