We had a bathroom refurbished a couple of years ago. As part of the refurbishment, all the electrics in the bathroom were re-wired and connected to a new Wylex CU with RCBOs.

I noticed that the earth bonding wires for the sink pipes were left unconnected?

Is this acceptable since the CU is 17th Edition?

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M.I.E.T - Forfeited this due to The I.E.T's ridiculous membership rules!

Supplementary bonding isn't normally required if a 17th. compliant c/unit is in place, however if the conductors are present I think I would have connected them, just to avoid any know-it-all plumber telling the customer that the electrician is at fault, i've had this a couple of times recently with gas fitters when i've put main bonding inside the property. One gas "engineer" was so knowledgeable that he told the customer that the bonding cable had to be connected whithin 600mm of the gas meter and it had to go to an earth rod!


Dave.

Dave

Those heating engineers do make you giggle at times! A BG engineer came to service our boiler at our head office and refused to service it as no 16mm2 bonding was present between the pipe work below the boiler. We had to remind this know it all, he was standing in an electrical contractors. He went a little red faced

Jobbo

Thanks - the problem is going to be trying to find narrow bonding straps. Otherwise the earth wires will need to be extended to attach the straps further down the pipe.

The earth wires already have eyelets on them from the previous installation where both pipes were bonded.

If I do need to extend the wires, what is the best way to do this and still maintain integrity of the connection.

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M.I.E.T - Forfeited this due to The I.E.T's ridiculous membership rules!

Edited: 08 June 2012 at 12:38 PM by M.Joshi