Technical Parameter
A cable is a conductor covered with an insulating layer, a protective layer, and a shielding layer that is used to transmit power, signal current, and signal voltage. According to the voltage, it can be divided into high-voltage cables and low-voltage cables.
Compared with low-voltage overhead lines and low-voltage overhead insulated lines, although low-voltage cable lines are more expensive and difficult to lay and maintain, they are reliable in operation, do not erect poles, do not occupy the ground, are not unsightly, and are less affected by the outside world. Features, and is widely used in low-voltage power distribution systems.
The components of a high-voltage cable from the inside to the outside include: conductor, insulation, inner sheath, filler (armor), and outer insulation. Of course, armored high-voltage cables are mainly used for underground burying, which can resist high-intensity compression on the ground and prevent damage from other external forces.