bathroom bonding

[rojac]

Hi
i know this has been covered before but im still alittle bit confused.In my bathroom i have a shower a toilet and a basin do i connect 4mm g/y wire from the shower earth terminal and link it to the extraneous parts copper pipes ect and then back into the light pull cord switch earth : or can i just finish a the last extraneous part any advice appreciated.

[ultimatehandyman]

This is an area of great debate and I am sure someone will be along to corrct me soon

The earth wire only needs connecting to the lighting circuit if the Luminare or switch is inside of the zones.

So if your Luminare is not in the zones there is no need to bond to that.

I have attached a picture of the zones which I found in a PDF document.

Here is the wording-

Notes:
1. The protective conductors of
all power and lighting points
within the zones must be
supplementary bonded to all
extraneous-conductive-parts
in the zones, including metal
waste, water and central
heating pipes, and metal
baths and metal shower basins.
2. Circuit protective conductors
may be used as supplementary
bonding conductors.
3. Metal baths not connected
to a metal building structure
do not require
supplementary bonding if all
metal pipes connected to
them has been bonded.
4. Connections to pipes to be
made with BS 951 clamps
(complete with “Safety
Electrical Connection” label).

[rojac]

Thanks for your quick reply and helpful advice.

[ban-all-sheds]

Useul info:

Bathrooms: http://www.niceic.org.uk/downloads/NL139supp.pdf


Extraneous definitions: http://www.niceic.org.uk/downloads/E169-9.pdf


Earthing v bonding: http://www.niceic.org.uk/downloads/Eart ... 0guide.pdf


Bonding plastic pipes: http://www.iee.org/Publish/WireRegs/Wir ... o_bond.pdf