Yes, the original wasn't working but the rest of the sockets on the circuit were. then once i reconnected the new socket they all stopped working. when i shorted the circuit the trip did activate, and all the other circuits seem to be working fine. with regards to the 'T', i cannot see it although i know the tripswitch you are talking about, and it is already up. i have tried reconnecting the socket, and at the moment it is bypassed altogether, with the wires in direct contact with each other.