Changing consumer unit in flat

[westward10]

Eh?

 

[bigspark17]

Just wondering if you carried out Ze, best do that 1st and take it from there.
I think you will find it will be within limits.

Ive seen loads of 6mm earths and tested fine and no you can not TT, if you have an issue with the earthing you ring dno.

Good luck

Double ehh????

 

[DPG]

Triple eh???

 

[Sparkie30]

Double ehh????

Really ??? Where??

Cant see where im repeating you, do apologise if that has offended you and others.

Thank yu

 

[bigspark17]

Really ??? Where??

Cant see where im repeating you, do apologise if that has offended you and others.

Thank yu

Hi @Sparkie30 you havent offended anyone but your reply made little sense to the OP predicament..
1-how is checking ze going to help with his bonding predicament
2- the op hasnt questioned any ze max values
3- yes you can TT without contacting DNO

 

[Ian1981]

If the main earthing conductor is 6mm and has been in place for quite a few number of years and shows no signs of thermal damage it maybe adequate
By carrying out the aidiabatic equation it maybe an adequate CSA and can be left and a note made on the certificate

 

[DPG]

If the main earthing conductor is 6mm and has been in place for quite a few number of years and shows no signs of thermal damage it maybe adequate
By carrying out the aidiabatic equation it maybe an adequate CSA and can be left and a note made on the certificate

But the bonding issue?

 

[Dave OCD]

And earth fault current will always be limited by the 60a sub main fuse.

 

[westward10]

If the main earthing conductor is 6mm and has been in place for quite a few number of years and shows no signs of thermal damage it maybe adequate
By carrying out the aidiabatic equation it maybe an adequate CSA and can be left and a note made on the certificate

It isn't the earthing conductor it is a cpc. The issue is its ability to support PME bonding.

 

[Sparkie30]

Hi @Sparkie30 you havent offended anyone but your reply made little sense to the OP predicament..
1-how is checking ze going to help with his bonding predicament
2- the op hasnt questioned any ze max values
3- yes you can TT without contacting DNO

1- Ive never said checking ze is going to help with his bonding
The op was asking about his earthing in his 1st post
2- the op has said its pme so i guess he knows max ze value
3- no you cant unless you get permission from local authority and survey the area, and im sure if you have a eathing issue ukpn or local authority will attend pretty quickly from my experince anyway.