its called a fused spur,not socket,if you get a smell from it you will need to replace it get a new fused spur,turn all power off at fuse box,remove two screws from fused spur,lift it carefully away from the back box,take note of the live,neutral and earth wires,the new fused spur will say live ,in,live out,neutral in neutral out,and earth wire,thats the green and yellow wire,its a ten minute job,if you dont feel up to fitting it,get a pro in ,if any wire burnt remake new connection by cutting of burnt wire,
mm, March 2013