If the recep. bus bars get shorted, the plug fuse is not going to in the circuit. As Paul stated, a 30A rewirable fuse at the consumer unit takes time to blow.
BTW, I reassembled the recep. very quickly. All the parts drop neatly into the black moulding's slots, including the blades and rockers, then the white body slots over ready for the holding screws. I estimate the conductor bus clearances after assembly at just under 3/16" [4mm].
Alan
