Power Cable

Power cable is used for transmission and distribution of electric energy, This cable is often used in urban underground grid, power station lead line, industrial and mining enterprises internal power supply and underwater transmission line across the river.
Power cables are used to transmit and distribute high-power electrical energy in the main line of the power system, including power cables of 1-500kV and above of various voltage classes and various kinds of insulation. The basic structure of power cable is composed of wire core (conductor), insulating layer, shielding layer and protective layer. It can be divided into medium and low voltage cables , high voltage cables , ultra-high voltage cables and ultra-high voltage cables . In addition, according to the current system can be divided into AC cable and DC cable. According to the insulation material, oil – soaked paper insulated power cable, plastic insulated cable and rubber insulated cable. Commonly used as insulation of the rubber materials are natural rubber – butyl benzene rubber mixture, ethylene-c rubber, butyl rubber, etc.