Earth doubling up as neutral conductor | on ElectriciansForums

Discuss Earth doubling up as neutral conductor in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

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Good morning all, I was called out to diagnose a fault with some 2d robus light fittings. After some research it turned out the installers had programmed the PIR with the wrong time sequence (5mins) the tube and ballast were both being damaged as min run time should be 15mins.
What stumped me is why they have used the CPC as the neutral conductor, this contradicts all I have been taught. Is this common or acceptable practise? Were the Orginal installers cutting corners by using cables with less cores. The fittings are all plastic with no exposed conductive parts.
Thanks for all your imput
 
I had this the other day in an underfloor heating thermostat and the crazy thing is there was a blue core within the cable that they had just cut off at each end! tested out all ok so i put it as it should have been, i don't know what goes through peoples heads sometimes!
 

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