On Tue, 15 May 2018 13:53:30 +0100, "Dave Plowman (News)"
wrote:

In article ,
Archibald Tarquin Blenkinsopp wrote:
Only if you buy Cheap.

The type of socket wasn't stated.



BS1363-2:1995 requires for double socket outlets that both socket
outlets have loads applied via test plugs, 1 test plug having a load
of 14 amps whilst the other has a load of 6 amps, making a total load
of 20 amps on the cable supplying the double socket outlet. The double
socket outlet is then subjected to this loading for a minimum
continuous period of 4 hours or longer until stability is reached with
a maximum duration of 8 hours (stability being taken as less than 1
degC rise within 1 h). The test is passed if neither the terminals /
terminations, nor the accessible external surface, increase in
temperature by more than 52 degC.

A double socket with two plugs taking a total 20 amps might well run
cooler than a single at 13 amps. More 'air' around it.

On the face of it yes.

The areas of the socket dissipating power will not be the conductors,
they will be the interface or the relatively high resistance between
the male and female prongs.

Two plugs will dissipate more than a single unit of twice the current
[generally speaking].


AB