wrote:
A friend of mine recently had some new sockets installed in a
conservatory. These were fed from a fused spur of the ring mains. They
are in 2.5mm on a radial. Is this OK.

OK yes, although it limits the total combined load on all the new
sockets to 13A. They ought to have RCD protection, but that may be
provided for the original circuit anyway.

--
Cheers,

John.

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