EricMark
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- Reaction score
- 97
May not even be an installation fault, back in 1995 I fitted a pair of RCD's one to each fuse board, now has MCB's in old boards, but now been fitted for some 30 odd years, every so often we get a run of tripping, do nothing, and it stops again, I will assume spikes on the supply. Resetting one RCD can trip the other, no real reason why it should, but it does.
In the main RCD tripping problems are down to a neutral to earth fault. So a fault with the toaster means using kettle will trip RCD when there is no fault with the kettle, cheap insulation testers can be bought for £35 today, far cheaper than new washing machine, so that's way to go.
After all the problems with RCD tripping for no apparent reason, this house is all RCBO it also means 4 more slots in the board, but not all RCD's are equal, there are makes and models designed not to be affected by spikes and not to trip until at 90% of earth leakage, and have a warning light built in, think they were called Xpole which is a problem as internet seems to show woman dancing not RCD's.
But at end of day, testing is only way, one may find a faulty appliance by trial and error, but you may also be lead astray, specially if the appliance which seems to cause the trip draws a heavy current.
In the main RCD tripping problems are down to a neutral to earth fault. So a fault with the toaster means using kettle will trip RCD when there is no fault with the kettle, cheap insulation testers can be bought for £35 today, far cheaper than new washing machine, so that's way to go.
After all the problems with RCD tripping for no apparent reason, this house is all RCBO it also means 4 more slots in the board, but not all RCD's are equal, there are makes and models designed not to be affected by spikes and not to trip until at 90% of earth leakage, and have a warning light built in, think they were called Xpole which is a problem as internet seems to show woman dancing not RCD's.
But at end of day, testing is only way, one may find a faulty appliance by trial and error, but you may also be lead astray, specially if the appliance which seems to cause the trip draws a heavy current.