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Discuss ZS Testing in the Periodic Inspection Reporting & Certification area at ElectrciansForums.co.uk.

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  1. Sparky 63
    Offline

    Sparky 63 Guest

    Hello Guys.
    Just a quick question , when carrying out zs test on a ring main in an office area , can you carry out this test whilst any appliance such a pcs are plugged into the circuit - i dont believe this is the case but just would like to confirm this.

    Thanks
     
  2. EddieB
    Offline

    EddieB Electrician's Arms

    It's virtually impossible to switch off and unplug all pc's in an office location, so the answer if you've got no option you have to, did you experience any abnormal readings?
     
  3. driverman
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    driverman DIY

    Location:
    England
    Tin hat time.....Could you not put LIM on EICR and explain why?
     
    • Like Like x 1
  4. SPARTYKUS
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    SPARTYKUS Trusted Advisor

    Location:
    Shropshire
    If thats your only option then note on the report that that was the case and there were items plugged in. Then you have.....told the truth
     
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  5. SirKit Breaker
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    SirKit Breaker Guest

    It is not ideal, and i wouldn't do it because there is a remote chance that you could damage something, ok the chances are negligible, but if it something goes bang, then the cost could be a lot more than negligible.

    My best advice would to be do the dead testing, you can do this with everything plugged in. So confirm ring continuity, do the r1+r2, (i would skip the r1+rn unless there is a pressing reason not to, as it is a periodic), then calculate your Zs, job done, and use test method 2 for the insulation resistance test. You could agree with your client to exclude this circuit, and record it as such under "Extent and Limitation", but it will need a test sooner or later.

    Cheers…………Howard
     
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  6. Sparky 63
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    Sparky 63 Guest

    Many Thanks Gents for your responses- much appreciated

    Sparky 63
     
  7. SirKit Breaker
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    SirKit Breaker Guest

    Its a pleasure mate, don't forget the "Thanks" button.:29:

    Cheers…………Howard
     
  8. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Top Poster Of Month

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    but, Howard, if you're going to power down for dead tests, you may as well unplug all equipment anyway.
     
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  9. GMES
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    GMES Admin Staff Member Trusted Advisor

    Are you physic Tel every time I am going to say something you beat me to it with the same answer, or is it merely a case of great minds.....
     
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