You'd have to see if the disconnection times could be met based on Ze, have you I.R tested every circuit L-E and N-E ?
Initial verified them all yes - not since tripping though as only happened this afternoon - gonna have to delve into it tomorrow
Discuss Strange RCD tripping scenario in the UK Electrical Forum area at ElectriciansForums.net
You'd have to see if the disconnection times could be met based on Ze, have you I.R tested every circuit L-E and N-E ?
Suggestions:
Test the IR of electric ovens, hot wire element electric hobs, washing machines and tumble dryers and dishwashers, immersion heater.
Or.....stop wasting time and suss it out quick.Yes you need to gain access to the elements terminals and isolate them first.
Reply to Strange RCD tripping scenario in the UK Electrical Forum area at ElectriciansForums.net