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Basic structure of power cable
Mar 21, 2018

The basic structure of power cable consists of four parts: wire core (conductor), insulation layer, shielding layer and protective layer.

Wire core

The wire core is the electrical part of the electric power cable, which is used to transport the electric energy. It is the main part of the power cable.

Insulating layer

Insulation is isolating the core from the earth and the core of different phase on the electrical side to ensure power transmission. It is an indispensable part of the power cable structure.

Shielding layer

The power cables of 15KV and above generally have the shielding layer of the conductor and the insulation shield.

Protective layer

The role of the protective layer is to protect electric power cables from external impurities and water intrusion, and to prevent direct damage to power cables from external forces.


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