insulation resistance test

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  1. C

    Insulation Resistance Test One or Two?

    Hi I am aware that test 2 at 250v with L+N joined is recommended where there is a risk of damaging sensitive equipment. What I admit I don't really understand is why test 2 is not used in all cases:confused: Can anyone please explain why/when test 1 is necessary? Before I get my head...
  2. M

    insulation resistance test

    hello everyone, does anyone know whether an insulation resistance test 500v on a installation will damage the rcd/rcbo s, is it wise to test the whole installation toghether rather than individual circuits, for example testing the whole installion with a dual rcd board, cheers
  3. J

    RCBOs (INSULATION RESISTANCE TEST)

    Hello Everyone, I am required to test my practical assessment soon and notice that my consumer unit has three RCBOs fitted. There is a neutral wire and a cpc (beige) fitted from each RCBO. Am l required to remove these for an insulation resistance test which is 500V and may damage the RCBO...
  4. R

    insulation resistance test ?

    i tryed doing a insulation resistance test but the metter reading comes out at 0.00 even if i clip the test leads together and press test still reads 0.00 is the tester nakerd?
  5. I

    odd insulation resistance test results

    I have a simple one way lighting circuit that serves one fluroescent tube. there is a single jb up in the roof. now when tested here i get a reading of >1999 Mohms for the insulation resistance test on the individual cables. but when connecte together i get 376Mohms at the junction box and...
  6. M

    insulation resistance test

    looking for some help when testing jobs i find it hard to do IR testing due to appliances pluged in at back off tills, counters, shelfs,sockets above celings ,cctv that icannot get in to un plug . i dont want to damage anything doing this test i do all the other test that should be carried out...
  7. L

    How to "insulation resistance test" procedure????

    hey, could some explain how to do an insulation test, to niceic Test standards, of how you should do it when YOUR being assesed. correct procedures, aimed at those whos just done it and passed ;) cheers
  8. L

    Insulation resistance test? how does it work

    Trying to understand how the insulation resistance test works this is how I think it works, i maybe right or maybe wrong????????? bascially, your shorting circuiting neutrel and phase. Sending 500v down the cable (If no voltage no current) So the tester sends out a current, then reads the...

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