Confirmation would be greatly recieved.....

[mgzr]

right....

this thread is regarding main gas bonding....

i have recently been asked to install a new main gas bond on a property....
the gas meter is in a 'half sunked' meter box at the front of the property, and the gas pipe returns around the corner of the house, along the side of the house and through the wall to the combi boiler.

now regards to the location of the bond. personally, after reading the regs would imagine the best place for this would be immediately once the pipe has entered the property, before any branches etc...??

however, after having a look at the job, i noticed that the pipe enters the house, and immediately elbows up to the boiler, then t's off to supply the gas hob...

now, after realising there is no suitable place on the inside for it (cant get a clamp between the elbow and t piece) have decided the best place would be as it enters the building on the outside....

what do people think of this...??
any ideas would be greatly recieved...

regards

 

[malcolmsanford]

I'm not a great lover of the NICEIC but I will give then credit for their publications and the snag and solutions ones. You have to be aware that they often put a stance on them as they see fir but as a whole they are good this one

Snags and Solutions - a Practical Guide to Everyday Electrical Problems: Earthing and Bonding Pt. 1: Updated to IEE Wiring Regulations 17th Edition, BS 7671: 2008 Niceic: Amazon.co.uk: Electrical Safety Council, National Inspection Council for Electr

Concerns earthing and does have your scenario in it. I also agree with their solution if possible connect your bond in the meter box.

 

[Silly Sausage]

I'm not a great lover of the NICEIC

Neither am I!

I prefer to go by the Guidance Notes.
From GN8...
View attachment Guidance Notes 8 136.pdf

In your case I'd bond it in the meter box as in the attached picture.

 

[SPARTYKUS]

What about for an oil service pipe in the same scenario except there is no meter box!

Put a plastic adaptable box over the bond ?

 

[Silly Sausage]

What about for an oil service pipe in the same scenario except there is no meter box!

Trouble maker...:crazy:

 

[malcolmsanford]

Neither am I!

I prefer to go by the Guidance Notes.
From GN8...
View attachment 7987




In your case I'd bond it in the meter box as in the attached picture.

Think that is the same picture that is in the snag and solutions book lol

 

[malcolmsanford]

What about for an oil service pipe in the same scenario except there is no meter box!

Put a plastic adaptable box over the bond ?

As per reg 544.1.2 or as close to the reg as possible.

 

[Octopus]

I'm not a great lover of the NICEIC but I will give then credit for their publications and the snag and solutions ones. You have to be aware that they often put a stance on them as they see fir but as a whole they are good this one

Snags and Solutions - a Practical Guide to Everyday Electrical Problems: Earthing and Bonding Pt. 1: Updated to IEE Wiring Regulations 17th Edition, BS 7671: 2008 Niceic: Amazon.co.uk: Electrical Safety Council, National Inspection Council for Electr

Concerns earthing and does have your scenario in it. I also agree with their solution if possible connect your bond in the meter box.

These books need to bought by any sparky training - they are a grest source of good answers for day to day issues you will face.

 

[SPARTYKUS]

These books need to bought by any sparky training - they are a grest source of good answers for day to day issues you will face.

Hi Murdoch

Yes have looked through that one its a good 'un, just made my hand twitch the idea of lining the coffers of the NICEIC ..... thought I'll just leave that one for a bit ...! -BUT- maybe I should revisit it. I have hit a few snags recently and know not what to do.

 

[Octopus]

Hi Murdoch

Yes have looked through that one its a good 'un, just made my hand twitch the idea of lining the coffers of the NICEIC ..... thought I'll just leave that one for a bit ...! -BUT- maybe I should revisit it. I have hit a few snags recently and know not what to do.

Just ignore the fact that they are produced by the NICEIC and concentrate on the positives of what can be learnt/answered in such a small book!

 

[HandySparks]

now regards to the location of the bond. personally, after reading the regs would imagine the best place for this would be immediately once the pipe has entered the property, before any branches etc...??

however, after having a look at the job, i noticed that the pipe enters the house, and immediately elbows up to the boiler, then t's off to supply the gas hob...

now, after realising there is no suitable place on the inside for it (cant get a clamp between the elbow and t piece) have decided the best place would be as it enters the building on the outside....

I don't think it would be unreasonable to bond to the pipe immediately above the tee. I imagine the rules are intended to avoid the situation where changes to the gas piping unintentionally disconnect the bonding. In this case the wire and clamp would be obvious to anyone working on the pipework where it enters the house.

 

[SPARTYKUS]

I don't think it would be unreasonable to bond to the pipe immediately above the tee. I imagine the rules are intended to avoid the situation where changes to the gas piping unintentionally disconnect the bonding. In this case the wire and clamp would be obvious to anyone working on the pipework where it enters the house.

excuse my cynicism, but you refer I expect especially to the gas fitter that disconnects it and leaves it that way! See it loads. Sorry just tickled me.