Gas Pipe Bonding

[john4703]

http://www.niceic.com/medialib/www.niceic.com/PDF/Gas-Pocket-Guide-8.pdf

That is really helpful. The sentence "Where practicable the connection shall be made within 600 mm of the meter outlet union or at the point of entry to the building if the meter is external.” seems relevant. It would be an easy fix to bond from near the meter to the supplier’s earth, but it annoys me that the Smart meter fitter did not seem to know the regs. He nearly refused to fit the meter as there was a leak causing a pressure drop. He then found that the leak was because the input connection to the meter was loose.

 

[JohnW2]

... The sentence "Where practicable the connection shall be made within 600 mm of the meter outlet union or at the point of entry to the building if the meter is external.”

As EFLI has indicated, that is, indeed, the final sentence of the regulation (544.1.2) concerned. However, the potential ambiguity that seems to cause some peoplle to "read it differently" is a consequence of punctuation/parenthesis and/or the lack of it. It can be taken to mean ...

"Where practicable (the connection shall be made within 600 mm of the meter outlet union or at the point of entry to the building) if the meter is external.”
OR
"Where practicable (the connection shall be made within 600 mm of the meter outlet union) or (at the point of entry to the building if the meter is external).”

Not really relevant to you, since your meter is external (in which case those two interpretations amount to the same), but produces uncertainty in some people's minds when the meter is internal.

Kind Regards, John

 

[ericmark]

Yes officially this is valid

SP Energy networks do a huge document as to earthing, pointing out 1966 was the date when water pipes can no longer be used as an earth.

If every home supplies from a transformer has the gas and water bonded any current due to lost of PEN is shared between homes and non will have enough current to cause a problem, only when only one home has gas bonded is there a problem.

Wiring matters also do a review of the problem of loss of PEN.