In article ,
David Hansen wrote:
Fixed loads of up to 16A, protected by a suitable fuse or circuit
breaker, can be connected to ring mains. A socket is simply a means
of providing a connection point which does not need someone with
electrical skills to connect/disconnect the equipment.

Are you absolutely certain about this? I've never seen a device intended
for this sort of use. FCUs are limited to 13 amps. Indeed it's now frowned
upon to connect any sustained fixed load - like say an immersion - to a
ring circuit, even within the 13 amp limit.

--
*Cover me. I'm changing lanes.

Dave Plowman London SW
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