Can anyone please confirm or deny the need to earth bond all pipe work surrounding a gas central heating boiler. I have been told that the cross bonding of all three incoming services is sufficient and that all electrical components in the boiler are individually earthed, :?:
Help please as I am not convinced by this statement.
Your incoming gas and water supply should be bonded to the MET at the Consumer unit.
There is a metal plate that links all pipework (incoming and outs) on the underside of most boilers.
So this should cause continuity as far as your main earth bonding is concerned.
as KB says there is no requirements under electrical regs. but Corgi/gasafe may insist on it for their installers, in a similar way that NICEIC want fly/pigtail earths in back boxes, also not a requirement of regs. if wiring with a CPC.
[If a qualified electrician, rather than a plumber wishes to argue then please quote relevent reg. #]
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