Bonding gas/water yellow and blue

[Leesparkykent]

Yellow OSG Sec 4.5 'Main protective bonding of plastic services'. There's no shock here (excuse the pun), it says there's no requirement to bond plastic services.

Continuing on page 46; 'Where there is a plastic service and a metal installation within the premises, main bonding is recommended unless it has been confirmed that any metallic pipework within the building is not introducing Earth potential (see 4.3, (referencing to reg 411.3.1.2).

I have had a quick shufty through GN8, and can't seem to find specific mention of the above scenario.

What do you make of the definition of extraneous-conductive-part in BS7671?

That was 16mins

 

[Midwest]

That was 16mins

It was a double

 

[fraserd]

NHBC “snagged” me on this on some new builds, yellow plastic incoming on the gas with about a meter of copper on show ran inside a garage clearly not extraneous and tested to prove so. Even after exerts sent from regs/osg apparently it wasn’t acceptable and they wouldn’t issue their cert or warranty. I was very annoyed as I had to go back and bond all of them which cost me money and made me look like I was in the wrong. He said “everyone else runs an earth to it so you are clearly in the wrong” could of smacked the smug ---.

 

[Deleted member 26818]

It goes onto say about internal metallic pipework which may be buried in the ground for convenience............but I'm not typing all that out for you

Even if the incoming services are not plastic and are bonded at entry, you would bond again if services are buried in the ground within the premises.

 

[LeeH]

It was a double

I’m partial to a Martin Millers myself.

 

[LeeH]

Even if the incoming services are not plastic and are bonded at entry, you would bond again if services are buried in the ground within the premises.

Never knew that.

Can you reference that for me and explain why is it’s a continuous copper pipe?

Unless the reason is you don’t know it’s a continuous pipe? But that’s a simple test....I’m confused.

 

[LeeH]

duplicate post.

 

[LeeH]

Even if the incoming services are not plastic and are bonded at entry, you would bond again if services are buried in the ground within the premises.

Even if it’s the same continuous pipe?

You wouldn’t do that to every leg of a steel structure...

 

[Deleted member 26818]

Even if it’s the same continuous pipe?

You wouldn’t do that to every leg of a steel structure...

I would expect you to if those legs are not connected together above ground.

 

[Deleted member 26818]

Still having problems with this site.