earthing


Postby Daisparks » Thu Sep 13, 2007 11:34 am

I am about to fit a new shower but I have noticed that there is no main earth bond to incoming water supply but there is to the gas. It is a TNS system, should I add a10mm earth cable to the supply bond or is it better to fit a main earth terminal and come off that?
Daisparks
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Joined: Tue Sep 11, 2007 3:01 pm

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Postby BLAKEY1963 » Fri Sep 14, 2007 6:25 pm

[quote="Daisparks"]I am about to fit a new shower but I have noticed that there is no main earth bond to incoming water supply but there is to the gas. It is a TNS system, should I add a10mm earth cable to the supply bond or is it better to fit a main earth terminal and come off that?[/quote]

DIASPARKES
FIT A MAIN EARTH TERMINAL FIRST.
PUT 16 MM2 EARTH FROM THIS BLOCK TO TNS
CONNECTION ON SUPPLY CABLE.
NOW U HAVE A EARTHING TERMINAL YOUR GAS BOND
CAN BE CONNECTED 2 IT , WHICH SHOULD B 10 MM2
EARTH.
YOU CAN NOW RUN A 10 MM2 EARTH 2 YOUR WATER
INCOMING SUPPLY , FROM THIS NEW EARTH TERMINAL.
AND FINALLY FROM THIS NEW TERMINAL , YOUR
EARTHING CONDUCTOR CAN BE RUN TO YOUR MAINS BOARD IN 16 MM2 EARTH.
SUPPLEMENTARY BOND IN 4 MM2 BETWEEN SHOWER PULLCORD AND LIGHT PULL CORD.
AND FINALLY I AM SURE U KNOW THAT THIS IS NOT
DIY WORK WITH YOUR SHOWER AND IS NOTIFIABLE
WITH PART P.

BLAKEY1963
BLAKEY1963
Posts: 654
Joined: Wed Jun 13, 2007 10:57 pm


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