3 ms·
It depends on the circuit. A single phase transmission system in the SWER configuration gets by with a single current-carrying conductor https://en.wikipedia.or
by howard941 7y ago
It depends on the circuit. A single phase transmission system in the SWER configuration gets by with a single current-carrying conductor https://en.wikipedia.org/wiki/Single-wire_earth_return https://en.wikipedia.org/wiki/Single-wire_earth_return