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Basic Structure of Power Cables

2020-05-29

The basic structure of a power cable consists of four main components: the conductor (core), insulation layer, shielding layer, and protective layer. The conductor is the electrically conductive part of the cable, responsible for transmitting electrical energy—and it forms the core component of the power cable. The insulation layer electrically isolates the conductor from the ground as well as from other phase conductors, ensuring efficient energy transmission. It is an indispensable part of the power cable’s design. Power cables rated 15 kV and above typically include both a conductor shielding layer and an insulation shielding layer. Finally, the protective layer serves to shield the cable from external contaminants and moisture, while also preventing direct physical damage caused by external forces.

The basic structure of a power cable consists of four main components: the conductor core, insulation layer, shielding layer, and protective layer.

The conductor core is the electrically conductive part of a power cable, responsible for transmitting electrical energy—and it constitutes the cable's primary component.

The insulation layer electrically isolates the conductor core from the ground and from cores of different phases, ensuring efficient power transmission. It is an indispensable component in the structure of power cables.

Shielding layers: Power cables rated at 15 kV and above typically feature both a conductor shield layer and an insulation shield layer.

Protective Layer The protective layer serves to shield the power cable from external impurities and moisture, as well as prevent direct physical damage caused by external forces.

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