On Sun, 1 Oct 2006 10:50:39 +0100 David Skinner wrote: | In article , snipped-for-privacy@bellatlantic.net says... | |> Power dissipated in the wire: P = I^2R |> where I is the current and R is the resistance |> of the wire. Notice how you don't need voltage |> to arrive at the answer, when you know I. |> |> Therefore, a wire rated at no more than 13 amps |> cannot carry 25 amps, regardless of voltage. | | Thanks for the replies everyone - It's nice to drop-in on a newsgroup | which still values helpfulness and facts. Looks like I either need to | double-up the conductors or go out and buy fatter cable.
I don't know about UK, but in the US, doubling up the conductors is not permitted unless the conductor size is already rather large (well beyond the 13 amps level).
If ring circuits are still permitted in the UK, maybe you can set that up if it's not aready so.