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Electrical Installation question?
I was in work the other day, when one the guys came across a neutral fault in the Boiler circuit, and the RCD kept tripping everytime.
They were on about borrowing a neutral?
I don t have a clue what they were on about, but they were stripping copper to test the neutral with other circuits.
Then they said that they solved the problem with borrowing the neutral, as the cable must of been broke from the boiler box above the boiler, and the 1mm that carries down to the boiler spur.
The RCD stopped tripping.
Please can someone explain to me what they are on about.
I m completely new to the industry, and don t want to ask to many questions to my boss.
I ll reward the best answer, to the one I think is most helpful.
1 Answer
- oldschoolLv 76 years ago
The current down the hot wire returns thru the neutral. An RCD will trip the hot wire if it sees a difference in the hot wire and the neutral amps. If your neutral is intermittent, an RCD would see a difference and trip. When they found a solid neutral, it fixed the problem. GFI's and RCD's keep people from being electrocuted by tripping when the current is returning to ground through a victim holding the wire instead of through the neutral.
