water and gas

[Farmelectrics]

need to upgrade earthing in a family members house laminated floor all over house my question is can i take a 10mm earth to the gas and the continue to the water the earth cable will remain unbroken at the gas clamp, im sure you can do this but no books with me

 

[baldsparkies]

So can you not fit two lugs to a single 951 clamp to extend on to the next one then?

Of course you can, we all can, but is it ok to do so ??
Or do we need to define "unbroken"
I can never see the problem to be honest. Any electrical connection can loosen or be disconnected, its not unique to bonding conductors after all.

 

[Leesparkykent]

Of course you can, we all can, but is it ok to do so ??
Or do we need to define "unbroken"
I can never see the problem to be honest. Any electrical connection can loosen or be disconnected, its not unique to bonding conductors after all.

There is no reg saying you can't.

 

[davesparks]

Of course you can, we all can, but is it ok to do so ??
Or do we need to define "unbroken"
I can never see the problem to be honest. Any electrical connection can loosen or be disconnected, its not unique to bonding conductors after all.

Sorry I wasn't clear in what I meant. I didn't mean is it physically possible. I meant is it permissible?

Where does the idea of it being unbroken come from? It's what I was taught as an apprentice so I'll have a look through my old regs books to see if it was ever a requirement

 

[baldsparkies]

Sorry I wasn't clear in what I meant. I didn't mean is it physically possible. I meant is it permissible?

Where does the idea of it being unbroken come from? It's what I was taught as an apprentice so I'll have a look through my old regs books to see if it was ever a requirement

GN3 and the way reg. 528.3.3. is or is not interpreted.
And then that get out of jail term also gets used, you know the one (good electrical practice).
Often used by those who want to suggest "it wouldn't be to do otherwise", without actually saying why!!
My opinion and, or definition. If the way the cable is lugged or joined is of good sound construction, then it continues unbroken. And as such, no different or any more at risk than to the way the cable is terminated at either end.
But that word unbroken is banded around, and as been for many years in relation to using a single conductor in this daisy chained way.
I have no problem with it, others might.

 

[uksparks]

So can you not fit two lugs to a single 951 clamp to extend on to the next one then?

Agree it would be ideal to loop it, but I personally can't see the problem with crimping proper ends on the cable and bolting them together.

i guess the point in looping it is if the first gets disconnected it will still be connected at the end, but equally at the same time it has just been disconnected from the first service.

 

[sparkdog]

Usually plumbers like to disconnect them all.

 

[micknew]

Common sense indicates that not cutting a water/gas common bond cable at its first connection is sensible in the long term.
Trouble is common sense seems to be lacking in some of the above posts IMHO.

 

[Richard Burns]

The wording in GN8 is that the cable should be continuous not must be continuous, so the guidance to the regulations is that it would be best to be continuous.
The wording in the regulations about any forseeable operation not causing damage means that I need to protect the connection against the more likely scenario of the plumber just cutting the cable, so I have decided to bury my bonding conductors and connections in steel reinforced concrete.

I was about to get a code on my assessment for having two crimped lugs on the BS951 to extend from water to gas and had to change it to a through crimp. They quoted the made up stuff from the NICIEC as well, which has nothing to do with the regulations.

In practice if someone is going to be as stupid to disconnect the bonding they will cut the cable not sit there with a screwdriver and release the clamp and undo the cable connections, so the cable being continuous is immaterial.

 

[andyb]

We've had this discussion before, I take 'should' to mean that I should do something, why would you not?
The whole of gn8 is 'guidance' and it's written by the IET, so it's a guide their own work. To ignore it is madness.

I've seen the earth clamp removed and left hanging several times, every time has been on refurb work where the plumber has disconnected the gas or water to carry out his work.

 

[Richard Burns]

Where the bonding clamp has been removed this would not affect the other service as the bonding would still be connected through the clamp.
I am reminded of this one I saw:

 

[andyb]

Where the bonding clamp has been removed this would not affect the other service as the bonding would still be connected through the clamp.
I am reminded of this one I saw:

Well there's only one cable there so it would make no difference one way or another.

If there was another earth cable going off to the water then it makes sense to have it continuous in this situation, something floating like this is always susceptible to being pulled or damaged.

As in GN8.

 

[PEG]

...and then there's the connections that are continuous,tight and well made...with a dangly,severed end just below the floor boards,with a knot in it to prevent removal and discovery...

No surprise,as same job had round section bootlaces tied to old VIR lead wrap pins,to support 6m of 22mm gas pipe :winkiss: