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Sparkingchip:
528.3.3 requires a common main protective bonding conductor to be continuous, so that is a pipe clamp or the like is removed the conductor remains as a single length of cable.
I think that has been taken out of context. 528.3 is all about protecting the wiring from water, heat, fumes; plumbers, and gas fitters.
Bonding is not in proximity to other services; it is in contact with them.
Sparkingchip:
I went into a house where the water pipe earthing clamp had been removed and asked the home owner why? He said it does not matter, so I asked why they had labels on them saying do not remove, I did not get an answer to that question.
House owners eh? Some just don't know what they don't know.
Z.
wallywombat:
I wonder if there has ever been a recorded incident of a plumber seeing a warning sign stating "safety electrical connection - do not remove" and coming to the conclusion that the connection should be left?
Well I know of one - main gas pipe after the meter had clearly been replaced - 6" of the original was still there supported by the bonding conductor... So it seems they had read the notice and done exactly what they were told ... just not what was really wanted.
- Andy.
AJJewsbury:wallywombat:
I wonder if there has ever been a recorded incident of a plumber seeing a warning sign stating "safety electrical connection - do not remove" and coming to the conclusion that the connection should be left?Well I know of one - main gas pipe after the meter had clearly been replaced - 6" of the original was still there supported by the bonding conductor... So it seems they had read the notice and done exactly what they were told ... just not what was really wanted.
That might be slightly on the autistic spectrum, but it is entirely correct in a literal sense.
You could imagine the same with a bit of supplementary bonding - two pipes to a wash-hand basin joined forever. ?
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