- Reaction score
- 13,478
The problem was a debris in the terminals of the old sockets. a lot of plaster dust from the plasterer as they were doing the place up
That's surprising and I think there might be more to it than plaster dust itself. Dry / dusty plaster is a reasonable insulator. Wet plaster is conductive but one would have to form a bridge of wet plaster from the line terminal to the earth to get enough leakage to trip an RCD.
What were the IR readings before / after corrective action?