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Gas meter earthing
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<blockquote data-quote="Davethsparky" data-source="post: 413947" data-attributes="member: 27165"><p>Bs7671 doesn't say anything about plastic pipes I agree, but it does say that main bonding is required for extraneous conductive parts, and a service constructed of an insulating material cannot be an extraneous part.</p><p></p><p>the statement about being after an insulating section is actually valid. If you consider a service pipe which contains a conductive fluid, such as impure water, then a short insulating section may not stop the pipe from being extraneous but would Increase the impedance of a bond if it was the wrong side of the insulating section. </p></blockquote><p></p>
[QUOTE="Davethsparky, post: 413947, member: 27165"] Bs7671 doesn't say anything about plastic pipes I agree, but it does say that main bonding is required for extraneous conductive parts, and a service constructed of an insulating material cannot be an extraneous part. the statement about being after an insulating section is actually valid. If you consider a service pipe which contains a conductive fluid, such as impure water, then a short insulating section may not stop the pipe from being extraneous but would Increase the impedance of a bond if it was the wrong side of the insulating section. [/QUOTE]
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