10mm Oil Pipe Bonding

[OnOff]

Apologies if there is a thread on this somewhere - I have searched but couldn't find anything. I need to bond a 10mm copper oil pipe to a central heating boiler. The storage tank in the garden has a h.duty plastic pipe disappearing into the ground halfway up the garden. On the patio, next to the house it comes out of the ground in 10mm copper (so there must be an underground join somewhere). Through a fire valve on the exterior wall and then through the wall in 10mm copper. Inside the house there is 2' of this 10mm copper a wall mounted oil filter and then from that a flexible steel sheathed pipe to the burner.

I've tried Tenby clips but can't see they'll go small enough. Even considered a 3/8" earth rod clip that is I think solid brass. I was wondering - if I could get hold of a solid copper bus bar off cut, whether, if I fabricated my own it would be acceptable? Thanks.

 

[M107]

Use a MICC "p" clip.............you can remove the pvc/paint covering if you can not purchase plain copper ones.

 

[SteveT]

IMO you can manufacture one yourself if your final measurements are within regs (regs are not law but guidance) if you do something different as long as you can show it to compy you should have no problem

 

[OnOff]

I was faffing around with some old brass motor terminal strips and then was considering making something out of copper pipe. Thanks to M107 I have now got some pyro P clips ordered off Ebay -

 

[Revved Up Sparky]

Personally I've never had a problem using ordinary earth clamps on oil pipes.

 

[Robin Spark]

Personally I've never had a problem using ordinary earth clamps on oil pipes.

+1 same here

 

[IzzyS]

MICC P Clip was fine on my assessment. Assessor said not to use use BS951 clamp as they're not designed for 10mm pipe. (Regs say that bonding should be on hard pipe, if memory serves correctly)

 

[jameseye12]

Make sure whatever you do that you put the warning label on it!

 

[batty]

Make sure whatever you do that you put the warning label on it!

Slippery surface.

 

[jameseye12]

No I meant 'Road Closed'

 

[Revved Up Sparky]

MICC P Clip was fine on my assessment. Assessor said not to use use BS951 clamp as they're not designed for 10mm pipe. (Regs say that bonding should be on hard pipe, if memory serves correctly)

Yes 544.1.2 does say that the connection should be made to "the consumers hard metal pipework" but in 20 + years of bonding oil pipes I have never heard of a standard earth clamp being unsuitable for a 10mm oil pipe, nor have I read any regulation in the BGB clearly stating this and no NIC inspector has ever pulled me up for using one.

Having said that I've just been told that the smallest earth clamps are now recommended for pipes only from 12mm diameter !.... oops lol. bad day explode ... I stand corrected. Sigh..... where's that box of P clips....

 

[NozSpark]

I've just had a look at some clamps on screwfix,,, it says "fits 1/2" to 1 1/4 pipes"

So fitting them on a 10mm pipe would not be IAW MIs