Basic structure of power cable

Basic structure of power cable

The basic structure of a power cable consists of a core (conductor), an insulating layer, a shielding layer and a protective layer.

Wire core

The core is the conductive part of the power cable, which is used to transmit electric energy and is the main part of the power cable.

Insulating layer

Insulation layer is the core and the earth and different phases of the core in the electrical isolation between each other, to ensure the transmission of electricity, is an indispensable part of the power cable structure.

Shield

15KV and above power cables are generally conductor shielding layer and insulation shielding layer.

Protective layer

The function of protective layer is to protect the power cable from the invasion of external impurities and moisture, and to prevent direct damage to the power cable.

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