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Classification of transmission lines
- Nov 01, 2018 -

There are two kinds of power transmission lines currently used, which are power cables, which are manufactured by special processing, buried in the underground or laid in the cable tunnel; the other is the most common overhead line, which is generally used without insulation. The bare wire is supported by a pole standing on the ground, and the wire is suspended by an insulator on the tower. Due to the relatively expensive cable prices, most of the distribution lines, most of the high-voltage transmission lines and all of the UHV and UHV transmission lines use overhead lines.