Earthing Requirements

mchu6am4

Hi,

Can someone tell me the earthing requirements in terms of cable sizes & earthing points etc.

I know that the water & gas supply should be earthed at the entry to the house directly from the consumer unit (I am using 10mm cable).

I need to know whether its essential to run earth cable from the consumer unit for earthing the bathroom plumbing (pipes + metal bath etc.) and same question for kitchen please.

Many thanks in advance.

Ash

Canucklehead

Good morning: The IEE produces 2 excellent guides http://www.amazon.co.uk/exec/obidos/ASIN/0863413749
http://www.amazon.co.uk/Electricians-Building-Regulations-Electrical-Dwellings/dp/086341463X/ref=pd_sim_b_2/026-0028382-0562807

My OH, Corgi Guy, uses both for reference. After the 17th Edition Wiring Regulations comes out in 2008, the IEE will publish new versions of both guides.

HTH

Canucklehead

panny300

yes 10mm to your gas and main incoming water.kitchens don't need to be bonded,there is an argument over the pipes to a boiler.the bonding in the bathroom do'snt go back the the cu,but you have to bond all metalwork,and any electrical circuit that enters the bathroom e:g lights,shower,fans.together.
but is your plumbing copper or plastic,if you are unsure about any part of it you should really get someone in to do it.i don't think bonding comes under part p.