earthing kitchen sink?

[andyhuk]

Hi

I have just replaced my stainless steel kitchen sink, under the sink I have reattached two green and yellow cables.

One between the hot and cold copper pipes and the other looks as though goes somewhere behind the wall.

There is also a third loose yellow and green lead that wasn't not connected to anything, one end of it is like a thing flat connector rather than the loose copper strands at the other end. Is this the Earth? where does this need to be connected to?

For info the sink is the main kitchen sink, all pipes are copper and the stop cock is also located under the sink.

I don't know much about this stuff, so any help would be appreciated.
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[Burnerman]

What you have done is correct - the earth cable that disappears into the wall will return to your consumer unit, and the stray earth wire with the terminal was used to connect to the original sink....several methods are used for this.
John

 

[andyhuk]

Thanks for the post, so its earthed correctly as it is? I dont need to reconnect up the spare cable to the sink?

 

[Agile]

The spare wire is for earthing the sink.

I would certainly earth mine! Many have a tag for this!

Tony

 

[Burnerman]

As above, definitely earth the sink unit.....as the taps have rubber or plastic washers under them, there's no guarantee that earthing integrity is maintained.
John

 

[andyhuk]

Can you tellme how to earth the sink? I have no idea?

 

[Nige F]

Found in the electrics forum - earthing sink is not required now - only in a bathroom , apparently. The pipes do need to be , not the top . Best to post there - it was an old post so it might be in the wiki

 

[RF Lighting]

The large earth wire coming through the wall is your main protective bonding conductor.

This should be connected to cold water pipe after the stop tap on the consumers pipework within 600mm of the stoptap and before any branch in the pipework.

This is the only connection required.

An additional link to your hot pipe and or your sink are not necessary.