Discuss Testing ze at the origin in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
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 morningBit late to ask now isn't it?
It's metrel multifunction tester jus come to me
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.
https://www.youtube.com/watch?v=PUTn3t65na4Hi 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?
Your PFC is going to be the highest Line to Neutral reading multiplied by 1.732, or doubled to be on the "safe side".
Or measured directly line-line.
Yeah as long as the tester is suitable to measure across Lines.
You might want to rethink using a PEFC value gained during the Ze test.
Why would you want to rethink? Are you referring to the fact that the fault current under short-circuit conditions in a 3-ph system is significantly higher than the line-earth fault current?
Reply to Testing ze at the origin in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
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