Why do we obligation to dirt sinks/basins surrounded by our homes? is it because of the copper pipes? and do you need to...
is it because of the copper pipes? and do you need to dust them if they are conected to plastic supply pipes?
I will consult my neighbor who is a qualified plumber, when I get the break,but just wondered!
Answers: Oh dear, here we stir again, everyones an expert on earthing!
Main services i.e. water & gas supplies must be "Main Bonded" if the supply from outside is metal coming onto the building. This way connecting a earth cable from the fuse board to in 600mm of the incoming service pipework where it enter the building (consumers side).
Supplementary bonding (earthing) is a different matter, this is carried out within wet areas, i.e. bathrooms / shower rooms, anywhere you might hold been immersed contained by water, reducing your resistance to electric shock.
Supplementary bonding is carried out by connecting a cable across any pipework explicitly within or pass through that area to the globe wire of any electrical circuit also contained by that area.
Kitchen sinks are not required anymore. All this will be shifting next year when the bright 17th edition of the regs. comes into force June 2008.
I hope this is of some use to you.
Check out my profile, I do know what I'm talking in the region of unlike so many others that suggest they do!
you lost me..maybe where on earth YOU live these things are required...but not everywhere