On 31/07/2019 09:43, NY wrote:
"Swer" wrote in message
...


"Andy Burns" wrote in message
...
wrote:

a radial is only rated to 20a whereas a ring main is rated to 32a
which is a better choice for high load areas

I could understandÂ* either a 32A ring (or 4mm^2 radial) for
kitchen/utility, but high current for TV kit?

Could be useful for emergency fan heaters on boiler failure.

Yes, all 3-pin sockets have to be able to supply the full 13 A in case
an appliance with the maximum allowed power is plugged in. You can't
have sockets that are physically capable of accepting a high power
appliance but which cannot supply it without the cables heating up: even
if you label the socket "low power devices only", someone will ignore it.

Shame that it can also overheat if you plug all the appliances at one
end and that the householder doesn't usually know the rule or where the
cables run.

But enough of that lets put brexit into the thread!