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Earth fault loop impedance is the value in ohms measured at the furthest point in a circuit and depends on the length and size of cables and the type of circuit. If there is an earth fault on a circuit current flows from the Line (phase) conductor through the fault, down the CPC (earth wire) along the earth electrode and planet earth for a TT system into the neutral point of the supply company transformer.
- Author
- sarang11
- Language
- EN