Hi
if its the wiring to the socket ur worried about then it should be 2.5 sqmm 'twin and earth' cable, controlled by a 20 amp RCBO or MCB/RCD. Sockets are generally on 20A MCB/RCD or RCBO and lighting is generally controlled by 10A MCB only. Heres a diagram that might be use to u. And a handy tip to remember is that an mcb or rcbo is there ONLY to protect the cable and not any appliances(thats what the fuse in the plug top or fuse in flouresent lights for example is for)

http://www.aboutelectricity.co.uk/im...l_circuits.JPG