Installation of about 20 new sockets serving 2 rooms, something is tripping the RCD but not the MCB. What could be causing this? It's a second hand MCB I purchased on ebay as I couldn't find volex anywhere else. The peculiar thing is that it does not look like the other MCBs, could it be faulty?
Tested continuity of the live, neutral and earth cables using a multimeter and the readings came back fine. Bit stumped.
Tested continuity of the live, neutral and earth cables using a multimeter and the readings came back fine. Bit stumped.