- Reaction score
- 39
Thanks for the feedback.Splitting the ring is all you can do in this circumstance.
I bet the customer doesn’t even allow you to move furniture to access sockets though.
Have you double checked your mates work? He hasn’t done something daft in the CU and got legs mixed up?
Possibility of faulty rcd? (Swap it for known good one) or is it an actual N-E fault. What was the IR result?
Disconnected the ring in the CU and found a very low reading between N & E, causing enough imbalance to trip the RCD.
Original installation did not have RCD protection so the current flow wasn’t enough to trip the mcb.
I do not know what the original installer was thinking but the ring serves the entire house including underfloor heating.
I have suggested that when we can pinpoint the problem we disconnect that section and replace it with a surface mounted option. I suspect there could more than one fault, there have been a number of additions as when splitting the circuit both legs trip.
Hope this gives you an idea what is going on.