Garden shed feed

[albi]

HI BOYS AND GRILS BUT AM I RIGHT IN THINKING THAT A CAN CONTINUE THE EARTH BONDING TO A GARDEN SHED FROM A TNS SYSTEM THERE IS A 3 CORE 10mm SWA FEED FROM A 32A B TYPE MCB WITH RCD AT THE SHED COVERING A RING AND LIGHTS. OR DO I NEED TO DROP A ROD DOWN AND NOT CONNECT THE EARTH AND MAKE THE SHED TT. CHEERS FOR ANY RESPONCE

 

[xraytek]

HI BOYS AND GRILS BUT AM I RIGHT IN THINKING THAT A CAN CONTINUE THE EARTH BONDING TO A GARDEN SHED FROM A TNS SYSTEM THERE IS A 3 CORE 10mm SWA FEED FROM A 32A B TYPE MCB WITH RCD AT THE SHED COVERING A RING AND LIGHTS. OR DO I NEED TO DROP A ROD DOWN AND NOT CONNECT THE EARTH AND MAKE THE SHED TT. CHEERS FOR ANY RESPONCE

Sounds ok to me.
The armour needs to be earthed at the CU tho, even if you are using a seperate conductor for earth.

Check out this PDF from the IET

http://www.------.org/publishing/wiring-regulations/mag/2005/16-elect-inst-outdoors.cfm?type=pdf

 

[acestu]

Hi, i have been taught that if you cannot touch the shed or building with your hand while touching the house with the other then you should not export the earthing system, and should consult your relevant board for info, otherwise sink in a rod...

hope this helps
Acestu

P.S you might find this thread interesting

http://www.electriciansforums.net/e...ical-regulations/11235-swa-2-core-3-core.html

 

[adam.h]

I was told that if the house was a tt then you would have to have a seperate earth for the shed due to different earth potentials, but on a tns and i think possibly a tnc-s you can use the suppliers earth. Don't quote men though, as a mate of mine said to me last night "you can stick 10 sparks in a room and ask the 1 question and they will all have a different answer." lol