Electrical Revolution

Function of Earthing Conductor In Overhead Lines

19:46 ·

 

Earthing conductor

The galvanized steel conductor is generally used as earthing conductor.

There are two methods of providing earthing conductor for transmission line

( 1 ) Continuous earthing conductor provided over the transmission line

  • It provides continuous low resistance path for earth leakage current necessary for protection system
  • To reduce effect of induced voltage for adjacent communication lines under fault conditions

( 2 ) Individual earthing conductor at each pole

  • It does not provides continuous return path for earth current but it reduces the effect of induced voltage for adjacent communication lines under fault conditions

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