Recent content by Normanw

Ok, it’s drum roll time - and a round of applause for Andy!  DNO back again today, having had animated discussions at the office, disconnected next door, no change. Disconnected next door but one - eureka, problem disappeared!  Further investigation on their property revealed a bore hole pump...

I didn’t know they were coming back! They just turned up. At least there are some conscientious people out there

problem identified by DNO as L to N leak in supply cable between supply pole and house. Problem circumvented by switching to TNTS - new G wire fitted to supply pole and N &G tied together at house. PV system operating. DNO to further advise next steps - dig and repair cable or possibly a new...

Thanks Warwick, that confirms what my electrician is saying. So now what can I do?

As I said above, the Supplier (electric board as they used to be called) checked incoming service cables with house disconnected when he was here, found 235 L-N and concluded it was my problem. Or did I misunderstand what you said, I’m a nuts and bolts engineer, not a sparky? This is a rural...

How do you do a Ze test on a TT system? The issue appears to be that the supplier says he has a good earth at the supply transformer (500yds away) by his test (<0.7ohms) but I don’t understand how I prove that I have a good earth on my earth rod compared to the supply transformer earth. 

As I said above, the Supplier (electric board as they used to be called) checked incoming service cables with house disconnected when he was here, found 235 L-N and concluded it was my problem. Or did I misunderstand what you said, I’m a nuts and bolts engineer, not a sparky? This is a rural...

Thanks Andy, I am not aware of anything but will check with neighbouring properties

Whilst troubleshooting a PV system fault (maybe more of that later but it’s not the issue here) my electrician found 235v L-N 202v L-G and 30v N-G. He disconnected everything including all N  and G tails, same result. Fitted a new Earth rod, same result. Called supplier who disconnected the...