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Gas Pipe Bonding.

When old metal underground gas pipes have a new plastic pipe inserted internally, are there any bonding concerns that I have overlooked? Or will the old metal pipe still be considered an extraneous-conductive-part?

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0 AJJewsbury over 3 years ago

Old redundant pipework can even make for a handy 'additional electrode' - when I replaced my lead water suppy pipe with PE I left the old pipe in and bonded and hey presto I'm AMD2 compliant as if by magic! (well on that point anyway.. don't ask about the SPDs.)

- Andy.
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0 Chris Pearson over 3 years ago in reply to AJJewsbury

I think that my gas supply is still in an iron pipe. Certainly the main in the road is 'cos I saw it when the new electrics were put in. The vertical part of the gas pipe seems to be clad in asbestos.

So that's one fortuitous Amd 2 extra earth. The other one is some conduit which supplies my garage pit. It may be above the "waterproof" membrane, but it certainly isn't bone dry.
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0 Chris Pearson over 3 years ago in reply to AJJewsbury

I think that my gas supply is still in an iron pipe. Certainly the main in the road is 'cos I saw it when the new electrics were put in. The vertical part of the gas pipe seems to be clad in asbestos.

So that's one fortuitous Amd 2 extra earth. The other one is some conduit which supplies my garage pit. It may be above the "waterproof" membrane, but it certainly isn't bone dry.
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Gas Pipe Bonding.

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