by BLAKEY1963 »
Fri Sep 14, 2007 7:25 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
