The composition of the power cable is: conductive wire core, insulation layer, protective layer. Detailed classification (high pressure, low pressure will not say) : conductive wire core, inner semiconducting layer, insulation layer, outer semiconducting layer, copper shield, filler, lining layer, double steel belt protective layer, outer protective layer.

The outer layer of power cable is generally rubber or rubber synthetic sleeve, the role of this layer is one of insulation, but also plays the role of protecting the cable from damage.

Power cable, and divided into high voltage or low voltage cable. If it is high voltage, there will be a layer of resin like filling, which is an insulating role, in the high voltage cable, this layer is an important part of the insulation. Low-voltage does not have this layer, and then it will be wrapped with something like a ribbon, which is to fix each core of the cable and fill the gap in the middle.



The shielding layer is divided into two cases, the shielding layer of the power cable has two functions: first, because the current through the power cable is relatively large, the magnetic field will be generated around the current, in order not to affect other components, so the shielding layer can shield this electromagnetic field in the cable; Second, it can play a certain role in grounding protection. If the cable core is damaged, the leaked current can flow along the shielded laminar flow such as the grounding network, playing a role in safety protection.

Qingdao Tianxing Cable Co., Ltd. is a technology enterprise specializing in the production of wire and cable in Shandong Province, with more than 150 sets of domestic excellent cable production equipment and testing equipment, excellent production technology, modern testing equipment, to ensure stable product quality and timely supply. The company's main products are power cable, mineral cable, high life wire and cable, radiation crosslinked cable, control cable, computer cable, photovoltaic cable, communication cable, data cable, low smoke halogen free cable, flame retardant series wire and cable.