The outermost layer of the power cable is generally a rubber or rubber composite sleeve. The function of this layer is to insulate and protect the cable from damage.
Conductor adopts oxygen-free copper in line with the standards of the International Electrotechnical Commission. High-precision oxygen-free copper also meets the requirements of national standards.
According to the voltage class, it can be divided into medium and low voltage power cables (35 kV and below), high voltage cables (110 kV or more), ultra high voltage cables (275 to 800 kV) and UHV cables (1000 kV and above).
The materials used in the three types of environmentally friendly cables are lead-free 70 ° C PVC insulation, thermoplastic low-smoke halogen-free flame-retardant polyolefin insulation and radiation cross-linked low-smoke halogen-free flame-retardant polyolefin insulation.
