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

 

[buzzlightyear]

its a yellow thingy .why ?

 

[Jim90]

Looks like TNS, sheath used as earth

 

[buzzlightyear]

Looks like TNS, sheath used as earth

correct .

 

[buzzlightyear]

what the two fuse for?

 

[buzzlightyear]

next time you take pic ,please correct that it not on is side !

 

[westward10]

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

 

[David Prosser]

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 ?

 

[Gudoldtom]

Hi I asumed it was TN-S but the 2nd earth does go into the service head so would it now be a TN-C-S? Many thanks

 

[Jim90]

I would assume that the neutral would’ve been identified on a new head. Would still say TN-S
Could always verify by contacting DNO

 

[Gudoldtom]

I would assume that the neutral would’ve been identified on a new head. Would still say TN-S
Could always verify by contacting DNO

Thanks

 

[Gudoldtom]

next time you take pic ,please correct that it not on is side !

It's not check the brickwork

 

[Gudoldtom]

its a yellow thingy .why ?

Oh yeah that's

Looks like TNS, sheath used as earth

Thanks I did think it was TN-S it was the 2nd earth going into the service head that confused me.

 

[Andy78]

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

Aye that's right. Northern powergrid have been doing heads this way round here for a couple of years now.

 

[ipf]

Aye that's right. Northern powergrid have been doing heads this way round here for a couple of years now.

If you've got TN-S, why add? I'd like to know what's gone on with the earthing system as a whole. Why 'neutral' the incoming cable sheath?

 

[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.