Using pipe work to bond to incoming water

[atm84]

I have recently come across a situation whereby instead of running a main equipotential bonding conductor from the MET to the incoming water someone had instead ran a short bond from the MET to some copper pipe in the mains cupboard and clamped it and then placed a bond on the pipe near the incoming water (at the other end of the property) and bonded to the incoming water there.

Wander lead method states 0.02 ohms resistance.

I know this is not good practice but where does it say in the regs it has to be a continuous conductor and that you can't do it.

 

[atm84]

Doesn't really provide the answer as to whether a copper pipe can be constituted as a main equipotential bonding conductor


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[Leesparkykent]

Doesn't really provide the answer as to whether a copper pipe can be constituted as a main equipotential bonding conductor


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543.2.1 (Vii) and 543.2.6 page167 BYB.

 

[atm84]

That relates to a protective conductor not a main equipotential bonding conductor. No body has said if they would happily use a copper heating pipe as part of a main equipotential bonding conductor. What code would anyone apply?


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[Leesparkykent]

That relates to a protective conductor not a main equipotential bonding conductor. No body has said if they would happily use a copper heating pipe as part of a main equipotential bonding conductor. What code would anyone apply?


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Yeah......look up the definition of a protective conductor!

 

[atm84]

In that case a copper heating pipe cannot be used as a main equipotential bonding conductor


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[yellowvanman]

In that case a copper heating pipe cannot be used as a main equipotential bonding conductor


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Why? ...

 

[atm84]

Because it's not in the list in section 543.2.1


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[atm84]

Why? ...

Would you? In particular when the bond is not a continuous conductor which may be liable to disconnection by other trades.

 

[davesparks]

That relates to a protective conductor not a main equipotential bonding conductor. No body has said if they would happily use a copper heating pipe as part of a main equipotential bonding conductor. What code would anyone apply?


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A main bond is a protective conductor.

You need to read exactly what is written in the regulations and not make assumptions.
The term protective conductor encompasses both cpc and all bonding conductors