Working principle of medium voltage cable


Release time:

2024-05-06

As an important equipment for power transmission, the working principle of medium voltage cable is very important. This article will introduce the working principle of medium voltage cable and its role in power transmission.

Medium voltage cable is a kind of electrical equipment used to transmit medium voltage power, which is usually used in urban power grids, industrial parks and other places. Its working principle is mainly based on the conductivity and insulation of the material inside the wire. Medium voltage cables usually consist of a conductor, an insulation layer, a shield layer and a sheath.
The conductor is the current transmission part of the medium voltage cable, usually made of copper or aluminum, with good electrical conductivity. The role of the insulating layer is to prevent the leakage of current, usually using polyethylene or cross-linked polyethylene and other insulating materials. The shielding layer is to reduce electromagnetic interference and ensure the stability of power transmission. The outer skin is to protect the internal structure of the cable and prevent damage to the cable from the external environment.
Medium voltage cables play a vital role in power transmission. Through their internal structure and working principle, they transmit the power generated by the power plant to various places where electricity is needed. The design and manufacture of medium voltage cables requires strict compliance with standards to ensure the safety and reliability of power transmission. In daily use, it is necessary to regularly detect and maintain medium-voltage cables, discover and eliminate potential problems in time, and ensure the normal operation of the power transmission system.

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