"Dave Plowman (News)" wrote in
message
In article ,
Jim Gregory wrote:
Maximum current handling is dictated by size of
remaining "solo" core. And 2.5mm wires can handle 16Amps
continuous AC easily!

230v AC rating is 24 amps. However, this doesn't mean the
cable will melt at 25 amps. It's simply a guide that
mains voltage drop will be acceptable at that current
over the lengths likely in a domestic environment.

I'm under the impression that heating inside conduits with
multiple conductors and long-term degradation of insulation
is considered when rating electrical wiring.