supplementary boiler bonding

[hoodie786]

hello all

when you supplementary bond underneath a boiler do you connect the begining or the end of the wire back to the MET or just bond all the pipes together or is there a correct way


thanks guys

 

[securespark]

Supplementary Equipotential Bonding NEVER goes back to the MET.

Protective Equipotential Bonding ALWAYS goes back to the MET.


http://www.diynot.com/wiki/electrics:speclcn:supbond17th

http://www.diynot.com/wiki/electrics:main_equipotential_bonding


Does the boiler manufacturer recommend SEB?

Some already have a metal plate fitted that connects all pipework together. If in doubt, contact them and ask.

 

[hoodie786]

so the pipes should be just bonded together underneath the boiler with out a break in the cable?

 

[ban-all-sheds]

Does the boiler manufacturer recommend SEB?

Some already have a metal plate fitted that connects all pipework together. If in doubt, contact them and ask.

 

[davelx]

Does the boiler manufacturer recommend SEB?

Some already have a metal plate fitted that connects all pipework together. If in doubt, contact them and ask.

True - but the installer who put my new boiler in told me (when I asked them why they'd done it) that their instructions from their electrician was to cross bond all the pipes regardless. They are not given the option to decide otherwise.

 

[Chri5]

If you have the correct 10mm bonding for the gas meter and for the main cw supplies nothing else is required.

Logic being that the gas pipe is copper and thus the boiler has a bond via the copper gas (and water) feeds.

Do you have 10mm earth bonding at the MET?

 

[EFLImpudence]

True - but the installer who put my new boiler in told me (when I asked them why they'd done it) that their instructions from their electrician was to cross bond all the pipes regardless. They are not given the option to decide otherwise.

It's usually the plumbers (sorry, heating engineers) who insist (because that's what they've always done) that the electrician fit bonding before they will issue a certificate for the boiler.

 

[hoodie786]

thanks guys i just cross bonded all the pipes together and yes i do have earthing to my water and gas main in 10mm

 

[ban-all-sheds]

thanks guys i just cross bonded all the pipes together

Weren't all the pipes fixed to a large metal manifold?