Cross linked polyethene (XLPE) is a thermosetting material obtained by forming cross linkages in polythene molecules. In the past two decades PVC had been the preferred material for Insulating cables. It suffered from inherent disadvantages because of its thermoplastic nature. This restricted the maximum operating temperature of the conductor and its ability to withstand thermal overloads. It also had high dielectric loss which it made it use uneconomical in cables.