On Wed, 5 Oct 2005 16:25:55 +0100, "Fred" scrawled:


"Lurch" wrote in message
.. .
On Wed, 5 Oct 2005 09:13:33 +0100, "Fred" scrawled:

I find it surprising, will the IEE and authorities hell bent on reducing
risk - Part P and all that, that a ring main based on 2.5mmT+E is still
allowed. In most environments 2.5mm is not up to passing 32A which is an
every day possibility.

When? You sure you've not got ring and radial mixed up?
--
Stuart @ SJW Electrical

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From a current perspective, what's the difference. Suppose we have two
sockets close to one end, say nominally 1/10 into the ring. 9/10 of the MCB
breaking current will pass through the shortest path. So yes a radial
circuit can then take 10% less current.

Hmmm, don't think it's quite as simple a calculation as that.
--
Stuart @ SJW Electrical

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