电力电缆本类产品主要特征是：在导体外挤(绕)包绝缘层，如架空绝缘电缆，或几芯绞合(对应电力系统的相线、零线和地线),如二芯以上架空绝缘电缆，或再增加护套层，如塑料/橡套电线电缆。主要的工艺技术有拉制、绞合、绝缘挤出(绕包)、成缆、铠装、护层挤出等，各种产品的不同工序组合有一定区别。产品主要用在发、配、输、变、供电线路中的强电电能传输，通过的电流大(几十安至几千安)、电压高(220V至500kV及以上)。
2. The main features of this kind of power cable products are: extruding (winding) the insulation layer outside the conductor, such as overhead insulated cable, or several cores stranded (corresponding to the phase line, zero line and ground wire of power system), such as overhead insulated cable with more than two cores, or adding sheath layer, such as plastic / rubber sheathed power line cable. The main process technologies include drawing, stranding, insulation extrusion (wrapping), cable forming, armor, sheath extrusion, etc. different process combinations of various products are different. The products are mainly used for strong electric energy transmission in power generation, distribution, transmission, transformation and power supply lines, with large current (tens of amps to thousands of AMPS) and high voltage (220V to 500kV and above