Electricians Forum | Electrical Forum | An electrical forum for electricians in the UK - View Single Post

Reg Man · 16-04-2008

Question 1 - Yes you can't get a reading of Ze at the supply. Yes & No is the answer for the Zs of each circuit as the earth in the T+E (if it has earth) may be connected to frame of farm buildings, old lead water pipes etc etc. It could get a earth of sorts that way. Have you tried a plug in tester just to see if it reads an earth?

Question 2 - Turn both isolators off the CUs and measure the PFC.

Question 3 - I would phone electricity board and see if PME is available first. You may be surprised even if the place is in the sticks. Depends how good supply transformer is though.

16-04-2008	#3 (permalink)
Reg Man Member Join Date: Apr 2008 Location: Northern Ireland Posts: 34	Re: testing for Ze and PFC. Question 1 - Yes you can't get a reading of Ze at the supply. Yes & No is the answer for the Zs of each circuit as the earth in the T+E (if it has earth) may be connected to frame of farm buildings, old lead water pipes etc etc. It could get a earth of sorts that way. Have you tried a plug in tester just to see if it reads an earth? Question 2 - Turn both isolators off the CUs and measure the PFC. Question 3 - I would phone electricity board and see if PME is available first. You may be surprised even if the place is in the sticks. Depends how good supply transformer is though.