I have a single 13 amp socket in loft which has a 13 amp spur next to it.Since the wiring go under the loft flooring I have never been able to check the wiring.However the time has come to replace the flooring and I have found previous owner has taken a spur off the shower cable that runs into loft.A small length of shower cable runs into the 13 amp switched spur unit and then some 2.5 amp wire into the 13 amp socket.
It is besides the point I only use the 13 amp socket for small photography lights ,I would like to know is this safe or even can this be done.I have read of light coming off a power circuit which has been spurred down to 5 amps but not my set up.
Thank you