UK Water bonding in gas meter box

[chris123uk]

Just had a boiler put in on a grant scheme.

Water main earth bonding was connected in with the existing gas bonding's pipe clamp on the outlet pipework of the gas meter inside the meter box, then taken through the backplate of the gas meter box, then goes along behind the units to the water stop tap location inside the kitchen.

"at risk" for gas ingress as far as I can see.

To be clear about obstacles; the bungalow is all done in laminate floor over floor boards with no ready underfloor access and this part is an extension in concrete floor;
The previously installed main gas bonding comes from through the loft and down the outside wall. It is the one that comes along the wall to the right of the gas meter box and up through the meter box bottom entry.
To be clear the bottom entry edge is pinched out for the gas bonding cable to enter not drilled or pierced.

There is a corner kitchen cupboard unit on the other side of the wall in these images.
The gas pipework entry isn't visible as it's behind there, though I suppose that would have been the preferred gas bonding location in an ideal world.

So as it stands the water pipe bonding cable currently comes through from gas the meter box, underneath and behind the units then to the stop tap location.

Are there reasons why this couldn't come through the wall elsewhere on the same mortar line perhaps to the right of the box and connected to the gas bonding cable outside of the meter box? If so would this be prefferable to going through the box bottom entry to the gas bonding clamp again the same way as the gas bonding cable?

Is it hard to do a sleeve perhaps under the existing units?

Also Interested to know a bit more about the bonding in general and with regard to the boiler installation.
Any info or thought's appreciated.

Thanks.

 

[chris123uk]

Does anyone have any recommendations or suggestions for a sleeve for the earth cable so it can be put safely through the cavity wall near to the gas meter box?

 

[DPG]

Does anyone have any recommendations or suggestions for a sleeve for the earth cable so it can be put safely through the cavity wall near to the gas meter box?

20mm plastic conduit?

 

[chris123uk]

20mm plastic conduit?

right thanks, just with it being probably near the meter installation thought it would be for the best. cemented in place and with a good bit of non setting compound perhaps in the end

 

[DPG]

right thanks, just with it being probably near the meter installation thought it would be for the best. cemented in place and with a good bit of non setting compound perhaps in the end

You said it's going near the gas meter box though. Not in it ?

 

[chris123uk]

You said it's going near the gas meter box though. Not in it ?

Yes possibly quite close to the gas meter installation maybe within a foot on the same mortar line. Trying to balance safety, practicality and lastly looks. At the moment they've asked me if i'd be happy just sealing the current hole in the box. I havent replied with an alternative suggestion yet as it's not immediately dangerous.

 

[Dave OCD]

If you want a slightly smaller [new] hole you could sleeve the 10mm earth cable in a piece of 16mm oval conduit but I think it would be just fine unsleeved.