Having changed our CH system we now have the chance to make better use of our old airing cupboard and I want to shelve it BUT the cable to the electric shower (8.5KWH) crosses the airing cupboard door opening about half way up on its way from the shower wall switch on the L (inside the said cupboard) to the shower on the R about 140cms away on a different wall. The cable used to be attached to a 2x4 piece of wood but that's gone now.
I want to extend the cable by about 20cms so that I can route it round the architrave above the door and get it out of the way. It'll be easier for me to do this between the shower and the switch not between the switch and the consumer unit (if that makes sense).
I have a basic knowledge of electricity but nothing flash (I AM a girl - is that any excuse!?) I could wire a plug when that used to be necessary and I change ceiling pendants and renew sockets,for example.
Please don't suggest an alternative. This is what I want to do (safely, of course)!
Ideas and help would be gratefully received. Thanks.