Low voltage power cable line

Low voltage cable line.The cable consists of a core, an insulating layer and a protective layer.There are many types of cables, low-voltage cable lines are the main use of low-voltage power cables.

Common laying methods of low-voltage cable lines are: (1) directly buried;(2) lay in the cable trench;(3) laying along the wall;Lay in the cable tunnel, etc.The types of low-voltage power cables are mainly selected according to the environmental conditions and laying methods.Compared with low-voltage overhead line and low-voltage overhead insulated line, low-voltage overhead cable line is more expensive and difficult to lay and maintain. However, it is widely used in low-voltage power distribution system due to its characteristics of reliable operation, no pole, no ground, no visual disturbance and little external influence.Low-voltage cable line is mainly used for the high requirements of power supply reliability (see power supply quality), corrosive gas and flammable, explosive and other places that should not be set up low-voltage overhead line or low-voltage overhead insulated line.

According to the standard: GB/ t12706-2008, iec60502-2004 rated voltage 35kV and below crosslinked polyethylene insulated power cables are suitable for transmission and distribution lines with an alternating current 35kV and below, for power transmission and distribution