Help! Never seen this before!

[Steve93]

I am installing solar to a house and this is there main incoming. I can’t see an Earth anywhere but test ZS across L-N coming out at 0.20. Then with gas bond disconnected is 0.38! But we only have gas bonding. No other earth anywhere. Anyone had this?

 

[SparkyChick]

You say Zs across L-N...

What about the true Ze or Zdb?

Could be someone had converted it to TNCS without DNO.

What about a pic of the main earth terminal in the cu? And a wider shot showing all the incoming gear.

 

[Pete999]

I am installing solar to a house and this is there main incoming. I can’t see an Earth anywhere but test ZS across L-N coming out at 0.20. Then with gas bond disconnected is 0.38! But we only have gas bonding. No other earth anywhere. Anyone had this?

View attachment 44800

View attachment 44801

Top right hand side of Pic DP MCB with TWECC coming out at the bottom, looks damaged to me where it bends into the enclosure, or do I need to go to Specsavers?

 

[Steve93]

You say Zs across L-N...

What about the true Ze or Zdb?

Could be someone had converted it to TNCS without DNO.

What about a pic of the main earth terminal in the cu? And a wider shot showing all the incoming gear.

Sorry zdb is what I ment. Here is a full pic and there is no main earth terminal. The 6’m gas bond goes from db to the gas meter. There are a couple of dbs that there earths go back to this ‘main’ db. But this main db only has gas bond earth in it. Nothing else

 

[Andy78]

Top right hand side of Pic DP MCB with TWECC coming out at the bottom, looks damaged to me where it bends into the enclosure, or do I need to go to Specsavers?

It's a burry pic but I think that's a 100A DP isolator with red/black T&E passing through brown/blue shrouds of some sort.

 

[Pete999]

Sorry zdb is what I ment. Here is a full pic and there is no main earth terminal. The 6’m gas bond goes from db to the gas meter. There are a couple of dbs that there earths go back to this ‘main’ db. But this main db only has gas bond earth in it. Nothing else

View attachment 44802

View attachment 44803

Wassat blue jobby mid righhand of piccy?

 

[telectrix]

Top right hand side of Pic DP MCB with TWECC coming out at the bottom, looks damaged to me where it bends into the enclosure, or do I need to go to Specsavers?

looks like some cowboy has taken a T/E feed from that D/P switch and split the cores.

 

[Steve93]

It's a burry pic but I think that's a 100A DP isolator with red/black T&E passing through brown/blue shrouds of some sort.

Yes that’s right which was done by meter fitter. This could be a multitude of problems. But atm I neee to find an earth

 

[Pete999]

looks like some cowboy has taken a T/E feed from that D/P switch and split the cores.

Yes me also, wasn't sure

 

[Steve93]

Wassat blue jobby mid righhand of piccy?

That’s my new db I’m installing for solar taken the neutral out to drill hole for main tails.

 

[Pete999]

An earth rod outside direct to CU earthbar?

 

[Steve93]

An earth rod outside direct to CU earthbar?

Can’t see how tho as there is one 6mm earth in db which is gas bond

 

[Andy78]

Can’t see how tho as there is one 6mm earth in db which is gas bond

Could be a much smaller cable to the rod. Readings you are getting would not make me think rod though.

Supp bonding from cpc to pipework that is shared with next door's pipework that is bonded and connected to their PME ?

 

[Steve93]

Could be a much smaller cable to the rod. Readings you are getting would not make me think rod though.

Supp bonding from cpc to pipework that is shared with next door's pipework that is bonded and connected to their PME ?

It’s a old detached house which is a fair few meters away from neighbour. I am stumped atm

 

[Nigel]

Top right hand side of Pic DP MCB with TWECC coming out at the bottom, looks damaged to me where it bends into the enclosure, or do I need to go to Specsavers?

It is not a DP MCB and it is not what the op asked for help on......

 

[Nigel]

It’s a old detached house which is a fair few meters away from neighbour. I am stumped atm

So with the gas bond removed there is no other earths connected to the CU earth bar apart from the final circuit earths?

 

[Steve93]

Not that I can see no

 

[Nigel]

Not that I can see no

Surely you can see the whole of the earth bar? Is there another earth or not? Your answer seems unsure so just need to clarify.

 

[Steve93]

So with the gas bond removed there is no other earths connected to the CU earth bar apart from the final circuit earths?

Sorry that’s correct yes

 

[Steve93]

Surely you can see the whole of the earth bar? Is there another earth or not? Your answer seems unsure so just need to clarify.

There is no other earths