paul wrote:
An aquaintances house was struck in the early hours of mon morning,
fortunately while he was on holiday,it blew a 5 foot hole in the roof and
destroyed all the wiring ,all the sockets were blown out of the wall ,and
this is the most curious thing ,even some sockets not connected to the mains
were blown out.



That sounds bad, but forgive me for asking - what use is there for
sockets not connected to the mains?