OP
harpoon
A multimeter ...
Discuss RCD trips a few minutes after lights turned on in the UK Electrical Forum area at ElectriciansForums.net
Congrats to Murdoch and Ian for their educated guess ... We should have a competition on here for fault finding ...
In the end, it was a L-E fault ... One of the lights had too much insulation around it causing the wiring insulation to become brittle and eventually short.
All is good now ...
Will happen on TN-S also as neutral and earth connected at the star point of the transformerThe N-E 'fault' is most likely the N-E loop of a TN-C-S installation. If you're not an electrician, with TN-C-S you have a line conductor and a neutral conductor coming in to the service head. The earth is then linked to the neutral conductor. TN-C-S stands for Terra Neutral Combined Separate as in earth/neutral combined (in the cable) and then separate (at the service head).
On the consumer side, if the installation is not fully isolated you will get a continuity reading between earth and neutral which is why you should fully isolate circuits for this kind of fault finding.
Will happen on TN-S also as neutral and earth connected at the star point of the transformer
Corrected that for you to be more realistic with current training requirements.Thanks SparkyChick ... I drew the line when I have to open up my consumer unit.
Maybe later in the year (can't believe June is coming to an end !) I will enroll in a course ,perhaps in November,and by Christmas I'll officially be qualified as an electrician to better protect my house !
btw, I had the electrician test my RCD again to make sure it is all working and it is.
Why would anyone spend up to £6k plus tools to protect their house?
Reply to RCD trips a few minutes after lights turned on in the UK Electrical Forum area at ElectriciansForums.net
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