Earthing kitchen sink/boiler?
Posted: Tue Oct 07, 2008 5:21 pm
by worm
What size cable is usual or the minimum requirement for earthing the kitchen sink?
Does the boiler 'combi' Glow worm also need earthing?
thanks
Posted: Wed Oct 08, 2008 7:12 pm
by john9159
From the mains service head you need to run 10 mm sq green/yellow sheathed conductors. On all the other supplementary bonding you would use 6 mm sq green/yellow sheathed conductors.
Yes, assuming your boiler has electrical connections within you will earth this.
Refer to DIY Doctor info at:
https://www.diydoctor.org.uk/projects/bo ... throom.htm
Posted: Wed Oct 08, 2008 10:51 pm
by ericmark
I would have said 4mm but today I was told there is no need to earth a sink.
Also not need to add any extra earths to a combi other than that which is part of power supply.
The sink may need an earth if metal waist is used.
Eric