Discuss Why Earth before IR testing? in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
Might not be a very good termination, judging by some I have seen,When you say the cpc / armour connected to earth are you just referring to swa cables and how would it not be connected to earth if glanded to a metal enclosure.
excellent explanation.However if there was a fault from a live conductor to another piece or earthed metal nearby the test from armour to live conductor woudl show as OK.
If the armour was connected to the earthing system then the short would be shown on the test result.
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Reply to Why Earth before IR testing? in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net