Discuss IR Testing lighting cct with fixed bathroom extractor load in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

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freedomrun

Domestic CU change, TN-C-S. Lighting circuit has an Extractor Fan with Electronic timer installed. When performing IR test on the lighting, should i just test the whole lighting cct between L & N (connected together) and the CPC - I do not want to remove the cover of the extractor to disconnect at the terminals as i may damage the plastic housing. If i do the IR test in this way, should i make a note of it on the EIC - i am concerned that i should be testing between all conductors seperately when changing the CU and recording the results accordingly. Any advice please.
 
Last edited by a moderator:
test L and N (shorted together) to E, first at 250V, then at 500V. do not test across L /N. as you rightly say, damage could be caused.
 

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