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Shed Electrics
On 22 May 2004 02:29:03 -0700, (Paul) strung together this:
I like the idea of using a garage unit - so much tidier!
That's the idea!
Could I still use the 4mm SWA (3 core) to this consumer unit?
Yes, that's fine.
Also,
taking into account that I need to run another 15m of cable from the
shed to the top of my garden for the pond pump and weatheproof socket,
do I need to provide the shed CU with it's own earth rod? If so what
is the correct proceedure to install one?
You could do, I personally wouldn't for what it's running. If you did want to
the correct procedure is,
Hammer 4' rod into ground without going through any pipes, it's easier if you
fit the bottom half of the PVC box and the clamp to the rod first.
Test the rod with an earth loop impedance tester. If the reading is too low
install anothe rod somewhere near the first, although generally 1 rod does it.
When you're making the armoured of into the CU in the shed you must ensure that
the SWA armouring isn't connected to anything earth related in the shed, nor
should the third core be used for an earth. The earth for the outbuilding end
should be solely provided by the rod.
Now, using a miniimum of 4mm earth cable connect the rod to the earth bar on the
shed CU.
In basic terms, that's it. In practice it's not as simple as it sounds, but not
overly taxing!
--
SJW
A.C.S. Ltd
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