Bonding Central Heating copper pipes.

[mikej2005]

As long as all incoming services that can introduce a potential have MEB conductors as they enter the property and supplementary bonding has been carried out to pipework and circuits within a shower or bathroom then there's no need to worry about cross bonding under the boiler.

Any ideas why the boiler manufacturers recommend it then ? Is a case of belt and braces and then some ?!

At £1 a clamp, that was a fiver I could have done without wasting !

I thought it was to keep the plumbers and/or electricians happy, when they work on the boiler during future repairs ?

 

[gas4you]

Gas meter/pipework should be earthed within 600mm of meter and before the first T in the pipe work.

Was told in my waste of time Part P course that electric regs had been brought into line with gas regs now.

 

[ban-all-sheds]

£0.54p each at Screwfix.

Even TLC don't charge £1.

 

[gas4you]

Cross bond all under the boiler with standard bonding clamps.

Why?

If you rely on the boiler to 'bond' the pipes together, then any tme that the boiler is removed then the bond continuity has disappeared.

Same as why we have to clamp across service pipe and domestic when we remove the gas meter to work on pipe work I suppose.

 

[mikej2005]

£0.54p each at Screwfix.

Even TLC don't charge £1.

Well that's what I get for using a local electrical supplies place, rather than my usual B&Q, Screwfix etc !

 

[ban-all-sheds]

Was told in my waste of time Part P course that electric regs had been brought into line with gas regs now.

Did they actually explain what they meant by that?

 

[ban-all-sheds]

If you rely on the boiler to 'bond' the pipes together, then any tme that the boiler is removed then the bond continuity has disappeared.

If you remove the boiler you then just have an collection of odd metal pipes and stuff in the house, none of which are extraneous-conductive-parts....

 

[GaryMo]

If you remove the boiler you then just have an collection of odd metal pipes and stuff in the house, none of which are extraneous-conductive-parts....

Bingo!

 

[gas4you]

Was told in my waste of time Part P course that electric regs had been brought into line with gas regs now.

Did they actually explain what they meant by that?

They meant the 600mm from meter and before the first T, rather than the first point of entry.

 

[rezarf]

I was thinking last night that if both the mains gas & water pipes are connected to earth nearer there point of entry into the house or at least closer to the consumer unit, I could just link the other pipes together with either the mains gas or mains water pipes at the boiler.

Rezarf