"Swer" wrote in message
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"Andy Burns" wrote in message
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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 understand 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.