What would you do?

[sparkyspike]

In an installation I have just tested (for a CU change), there is a copper gas supply pipe in a ground floor bathroom running a few feet up the wall and then capped. There is no meter, just the supply pipe.

I have measured the resistance to the MET and it has come out as less than 22,000 Ohms at 250v

So, it is extraneous.

The electrical regs state that you should bond the installation side of the gas meter - but not exclusively. I am unaware of any electrical or gas regulation prohibiting the connection of a bonding clamp to the gas supply pipe.

Does anyone know of one?

Would you bond the supply pipe?

 

[oharaf]

Yes, mayone day be connected!!

 

[grahamderek]

gas supply pipes aren't made of copper. Obviously from the electrical point of view, if it's extraneous metallic, then bond it. But you might want to further investigate if there is another point of entry somewhere.

 

[scarypants]

The meter's not outside in a cabinet then, but been removed and capped off?

 

[RF Lighting]

Yep bond it.

If there is no meter, you cant bond after it, so just bond within 600mm of the point of entry to the equipotential zone.

 

[sparkyspike]

Yes, mayone day be connected!!

Not really the issue here. I'm more interested in if there's any reason why I can't bond it before I proceed.

 

[RF Lighting]

AFAIK, the only reason you are supposed to bond after the meter / stoptap is incase the utilities company swaps their mains for plastic and leaves the consumers pipework not bonded as a result.

Also, the meter might not be conductive.

There is no reason not to bond this pipe.

 

[sparkyspike]

AFAIK, the only reason you are supposed to bond after the meter / stoptap is incase the utilities company swaps their mains for plastic and leaves the consumers pipework not bonded as a result.

Also, the meter might not be conductive.

There is no reason not to bond this pipe.

I have to agree. I've looked through some of the gas regs: Even if I bond the supply pipe and then a meter is fitted at a later date (which may or may not be conductive), the gas fitter has a duty to inform the occupants that bonding is still required. So no problem there. And no specific restriction on bonding supply pipes.

So, floorboards up tomorrow!

Thanks for your help.