Northern Power Grid Earth connection

[Gudoldtom]

Hi I have just had an earth put into my property can anyone advise what type of arrangement it is? Many thanks

 

[7029 dave]

Looks like was TN-S but it now may have a link to the neutral to form a TN-C-S come TN-S.

Yes, I do not like the idea of 2 mixed earthing arrangements here. TNS/ TNCS it should be one or other. IMO

 

[Des 56]

Perhaps Dave its not two earthing systems,it may be Tnc-s with the sheath of the original Tns now only acting as a exposed conductive part
In my area they have often spliced the cable outside and lost that earth path whilst they converted to Tnc-s

 

[7029 dave]

Perhaps Dave its not two earthing systems,it may be Tnc-s with the sheath of the original Tns now only acting as a exposed conductive part
In my area they have often spliced the cable outside and lost that earth path whilst they converted to Tnc-s

Thanks Des, that makes sense.

 

[Jim90]

I’ve never come across that.
Wouldn’t help sticking a PME sticker on it if that is the case!

 

[ipf]

Perhaps Dave its not two earthing systems,it may be Tnc-s with the sheath of the original Tns now only acting as a exposed conductive part
In my area they have often spliced the cable outside and lost that earth path whilst they converted to Tnc-s

That's what I was intimating, Des. It is the easiest and cheapest way, after all. But, why no label TNC-S or PME?
edit.....and least safe.

 

[static zap]

Aye that's right. Northern powergrid have been doing heads this way round.....

--- Horizontal---?

 

[polo1]

Do a Ze and see if that tells you anything?

 

[Deleted account]

Doing a pfc and a pscc test and see what that tells you also?
However you'd need a tester for that.
Cannot tell from a picture. Sorry.

 

[Gudoldtom]

Doesn't look like the second fuse carrier is connected to anything. Is the second earth cable going into the service head connected to the neutral ?

Hi the second fuse is for next door neighbours adjoining property

 

[Gudoldtom]

Doing a pfc and a pscc test and see what that tells you also?
However you'd need a tester for that.
Cannot tell from a picture. Sorry.

Thanks will test it tomorrow

 

[mjb]

It will be TNCS, but it should have PME labels fitted

 

[Gudoldtom]

It will be TNCS, but it should have PME labels fitted

Hi thanks, I did telephone the DNO & they confirmed & said they would resend the installer out on Fri to label the PME stickers. I am going to call them on Monday as they never came.

 

[Gudoldtom]

Finally got the label

 

[DPG]

Thanks for letting us know.

 

[Gudoldtom]

Thanks for letting us know.

Your welcome it's the least I can do