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Topic Title: Bonging gas pipe in external meter box
Topic Summary: is it against regs?
Created On: 18 May 2013 01:56 PM
Status: Post and Reply
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 18 May 2013 01:56 PM
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interplay

Posts: 178
Joined: 19 February 2005

I need to bond a domestic gas pipe. Where the gas pipe enters the house it is buried in the wall and there is no access to the pipe, especially within 600mm of it entering the property.
The external gas meter cupboard is directly next to the external electricity meter cupboard. If i ran a conduit between the two (0.5 mtrs) could i bond the gas pipe in the meter cupboard on the consumer side of the meter?
Not sure if this would be ok so would like your thoughts.

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cheers, Interplay
 18 May 2013 02:40 PM
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MrP

Posts: 832
Joined: 24 March 2006

Its good for me no probs

good luck buddy probably took you longer to post the message than bond the said pipe

MrP
 18 May 2013 03:50 PM
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UKPN

Posts: 467
Joined: 17 January 2012

the rule is consumers side of the meter, and usually 600mm of that, but
if not practical, then where it first surfaces.

Regards.
 18 May 2013 04:24 PM
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505diff

Posts: 141
Joined: 20 March 2006

Remember not to drill into the back of a resessed meter box as it must be gas tight in the point of view of the cavity wall, you must bring the cable in the front lip not via the back, which I suspect you will be doing anyway with a conduit run.
 18 May 2013 05:40 PM
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interplay

Posts: 178
Joined: 19 February 2005

Thanks for the replies.
505diff, you pointed out that the gas meter box needs to be gas tight with regards to the cavity wall. If i conduit between the gas box and the electricity box via the front lip which is what i was intending to do then in theory i will need to ensure that the electricity box is gas tight. Do you agree and if so what do i need to seal it with?

-------------------------
cheers, Interplay
 18 May 2013 06:42 PM
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aligarjon

Posts: 2802
Joined: 09 September 2005

if you are using 20mm conduit don't drill the 20mm hole through the inner plastic part of the gas box just the outer bit.then just drill a hole big enough for the cable on through. drill 20mm all way into electric box so that you can slip the conduit in before pushing back into gas box. seal ends and entries with a bit of silicone.


Gary

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Specialised Subject. The Bleedin Obvious. John Cleese
 18 May 2013 07:24 PM
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geoffsd

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Originally posted by: interplay Where the gas pipe enters the house it is buried in the wall and there is no access to the pipe, especially within 600mm of it entering the property.

The 600mm. applies to the meter, not the point of entry.

There is always 'where practicable'.
 19 May 2013 01:36 PM
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JZN

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Geoff, Reg 544.1.2. If the meter is external (which it sounds like it is in this case) then the 600mm "rule" applies to the point of entry and nbot the meter union itself. However as you say the words "where practicable" are important, especially in interlay's case.

John
 19 May 2013 02:22 PM
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geoffsd

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No. 544.1.2 says

within 600mm of the meter outlet union OR at the point of entry if meter external.
 19 May 2013 03:16 PM
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JZN

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Yes, but you said above that the 600mm rule applies to the meter, not the point of entry which is correct if the meter is internal, but in this case the meter is external and so ideally it needs to be 600mm form the oint of entry to the building. Am i interpreting this wrong?

As interplay can't get at the point of entry he's going for the meter which is OK as it's as it's as close as reasonably practicable. Done this myself a few times.

John
 19 May 2013 03:37 PM
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geoffsd

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Yes, I agree that it makes no difference but my point was that the regs say - when the meter is external the bond should be AT the point of entry, not within 600mm OF the point of entry.
 19 May 2013 05:51 PM
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dg66

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point of entry can be inside or outside the regs dont stipulate

-------------------------
Regards

Dave(not Cockburn)
 19 May 2013 09:42 PM
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leckie

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Something to be careful of..
If you have an external gas meter remember that the reg says something like, "at the point of entry before any spurs."

It's quite common for there to be an external meter with the gas pipe coming in under the screed, teeing off to a gas fire, or cooker under the screed and then out of the screed up to the boiler. If this is the case you need to bond before the tee off section.
 19 May 2013 10:42 PM
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UKPN

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but what if its plastic outside!!!!!!!!!!!

Regards
 20 May 2013 07:39 PM
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interplay

Posts: 178
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thanks for all your imput everyone, job done, hope it doesn't cause any problems

-------------------------
cheers, Interplay
 20 May 2013 08:08 PM
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OMS

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Originally posted by: UKPN

but what if its plastic outside!!!!!!!!!!!

Regards


Then you wouldn't normally be bonding it would you

Interesting picture - 132kV grid interface sub ?

Regards

OMS

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