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Dead Short

Former Community Member
Former Community Member
Tested a 3 phase supply lighting supply to street lighting.

IR tested 0.00 on all 3 phases.

contin. tested to 1.79,1.76. 1.48

But when generator is used the fittings work.

any theory would be nice.
Parents
  • As Andy says above, it sounds like there is a load connected. Even a PIR/photocell sensor will give a very low IR reading.


    I was called to do remedials on a warehouse, - 'Lighting circuits do not pass Insulation tests'.

    It was 3 banks of old fluorescent lights, when inspected, they all had a capacitor (snubber?) between L+N, thus low IR readings. The previous Inspector clearly had not enough experience to know this was likely to be the fault.
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  • As Andy says above, it sounds like there is a load connected. Even a PIR/photocell sensor will give a very low IR reading.


    I was called to do remedials on a warehouse, - 'Lighting circuits do not pass Insulation tests'.

    It was 3 banks of old fluorescent lights, when inspected, they all had a capacitor (snubber?) between L+N, thus low IR readings. The previous Inspector clearly had not enough experience to know this was likely to be the fault.
Children
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