UK Earthing

[DNO1981]

Hi all

Got a PME with 6mm gas & water
Looking into the board there is 10mm gas & water it's been upgraded to 10mm.

The 6mm from the PME is still in place with the 10mm. Board was upgraded to an RCBO board. What would you do?

I have a pic

Cheers

 

[pc1966]

Do you mean there is 10mm in parallel with old 6mm to both water and gas?

I would just leave it be, unless you suspect the 6mm is a much shorter route than the new 10mm and so might take the majority of fault current.

 

[DNO1981]

Do you mean there is 10mm in parallel with old 6mm to both water and gas?

I would just leave it be, unless you suspect the 6mm is a much shorter route than the new 10mm and so might take the majority of fault current.

Thats correct in parallel with each other

 

[DPG]

Can't see the problem if they are in parallel and the 10mm one is not significantly longer than the 6mm one.

 

[Taylortwocities]

Ahem

[pedant alert]
That is bonding, not earthing.
[\pedant alert]

 

[DNO1981]

Ahem

[pedant alert]
That is bonding, not earthing.
[\pedant alert]

My bad?....

 

[LastManOnline]

Can't see the problem if they are in parallel and the 10mm one is not significantly longer than the 6mm one.

Yes. Length is not the determining factor... its the resistance

 

[Dave OCD]

As the actress said to the bishop. ?