QUOTE(Vervain @ Feb 9 2018, 12:23 AM)
normally when the spoilt is due to contact and built quality. a slight contact means you're going to heat up due to increase resistance and arc.
Normally twin sockets do not have fuse in the unit. I think you can ask the electrician to explain to you why he said so. The fuse is there to protect the circuit as well as to sacrifice itself. Its easier to replace the fuse than changing the whole wiring inside the wall.
are we sure sockets have fuse? we are talking about wall socket. not those square plug into wall socket (extension socket).
as far as i know plug & extension socket have fuse but not wall sockets.
i don't know how thick the connectors inside are, but surely thicker than 2.5mm2? just wire uses copper not sure connector uses what.
according to BS the total consumption should be no more than 20A combined. the test is runned based on 1 socket on 14A and 1 on 6A for 4 hours.
but Schneider says 13A rated so i'm not sure what they mean.