Hi folks,

in a rushed piece of diy, i wired a lamp cord switch incorrectly which
resulted in a short between live and neutral. i plugged the lamp (it
had a 2 pin fuseless plug) into a mk twin wall socket. i had tested
it by flipping the switch on the wall socket. A big flash occurred
behind the switch and the house lights went out. Upon dissasembly of
the wall socket I found the switch contacts inside the socket fused
together.

Now what i found strange was that besides the 32A CB for the wall
sockets, my RLCB and my main 50A CB tripped too. Why should more than
1 CB trip for a given incident? Isnt the wall socket circuit CB
supposed to trip alone and keep the rest of the house from plunging
into darkness? Thanks

Sam