Posting a message to the forum will remove the above advertisement
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Discuss Testing ze at the origin in the Electrical Wiring, Theories and Regulations area at ElectrciansForums.co.uk.

Thread Status:
Not open for further replies.
Please make sure you checkout our forum sponsors, many do discounts for members and, they keep the forum free to use.
  1. joel89
    Offline

    joel89 Regular EF Member

    Hi all I'm an industrial sparky on maintenance doing my eal initial verification exam tomorrow was just wondering when doing ZE at the origin, do you do Neutral L1,L2,L3 and then Earth L1,L2,L3 and N+E ? Or is there between phases too? And is this the same for The PFC?
     
  2. nickblake
    Offline

    nickblake Electrician's Arms

    Earth L1,L2, L3 and put the highest reading down and should be done with the power switched off and the main earth disconnected to eliminate parellel
    earth paths
     
  3. joel89
    Offline

    joel89 Regular EF Member

    Thanks Nick. Just for the ZE this yes? What about the PFC.? So I'll drop croc clip on earth incomer after disconnection and goes across phases yes?
     
  4. Leesparkykent
    Offline

    Leesparkykent Super Moderator Staff Member Super Moderator

    Location:
    Kent
    What tester are you using? Some testers require you to use the 3rd lead.
     
  5. ian.settle1
    Offline

    ian.settle1 Forum Mentor

    Location:
    Wirral
    Bit late to ask now isn't it?
     
    • Like Like x 1
  6. joel89
    Offline

    joel89 Regular EF Member

    It' begins with an M can't think off top of my head it's not megger, it's what the training centre borrowed us, it's on a domestic rig im involved with control panels mainly on the industrial side. Do a bit of installation work just never really done testing since college 7years ago!
     
  7. joel89
    Offline

    joel89 Regular EF Member

    I've done a bit on the rig the lecturer is a bit useless so I'm just writing down the test sequence and procedure just memorising for the morning
     
  8. joel89
    Offline

    joel89 Regular EF Member

    It's metrel multifunction tester jus come to me
     
  9. Leesparkykent
    Offline

    Leesparkykent Super Moderator Staff Member Super Moderator

    Location:
    Kent
    this one?
     

    Attached Files:

  10. joel89
    Offline

    joel89 Regular EF Member

  11. newtothis
    Offline

    newtothis Electrician's Arms

    Location:
    East Sussex
    Ole !
    I've been getting to do ZE tests. :stooge_curly:
    Using a megger has a 2 lead option and it gives you the Prospective Fault Current (PFC) at the same time.
     
  12. Andy78
    Offline

    Andy78 Respected Member

    Location:
    Kingston upon Hull
    You might want to rethink using a PEFC value gained during the Ze test.
     
  13. Simonslimline
    Offline

    Simonslimline Electrician's Arms

    Location:
    South West, Bath
    Your PFC is going to be the highest Line to Neutral reading multiplied by 1.732, or doubled to be on the "safe side".
     
  14. Pete999
    Offline

    Pete999 Forum Mentor

    Location:
    Northampton
    Business Name:
    None
    https://www.youtube.com/watch?v=PUTn3t65na4
     
  15. newtothis
    Offline

    newtothis Electrician's Arms

    Location:
    East Sussex
    Sorry - the question is about 3 phase.
    Running for the hills :)
     
Loading...
Similar Threads - Testing origin Forum Date
New to PAT Testing absolute virgin New Member Introductions Nov 30, 2018
Testing Ethernet cable Electrical Forum Nov 25, 2018
Thread Status:
Not open for further replies.

Share This Page

Electricians Directory Post a Domestic Job Post a Commercial Job