Bathroom Sink Earthing

[oliveriles]

Hi, I am trying to find out if I need to earth the new sink I have fitted in my bathroom in the loft.

The feed into the rear of the loft from the floor below is 22mm copper. This then connects to a run of 6 meters of plastic pipe under the loft floor where it then reconnects to 15mm cooper just below the sink floor where it then stays as cooper into the taps.

As there is plastic pipe between two runs of cooper pipe I would think earthing is not needed - Is this right or do I need to run the earthing cable feed from the sink copper pipes back to the the cooper feed at the rear of the loft?

thanks,

 

[Lectrician]

No bonding needed to thos pipes. But what about other pipes, and the various circuits in the bathroom?? These would still need supplymentary bonding.

 

[oliveriles]

Hi, thanks very much for the post.

The toilet, shower & towel rail has the same set up as the sink.

regards,

 

[ban-all-sheds]

Do a search here for terms like 'bonding', 'plastic pipes', 'extraneous'....

If they are all isolated by several metres of pipe then I would say don't bond.