What is best practice when running T&E behind existing dot and dab plasterboard?
I want to run a spur to an FCU from an existing double socket on a ring final. Plasterboards is on dabs over aerated concrete block, being the inner skin of a cavity wall. If I channel through the dabs, I reckon I can fish the cable through the hollow "non-dab" sections. I have about 1m to an internal corner, then another 1m along the adjacent wall. The FCU and the socket will be at the same (current standard) height above floor level. If I just re-plaster my "channels" the cable will be trapped - is that a problem or should I use capping to leave some limited mobility to the cable.
The socket and the rest of the electrics are part of a professional install in a ground floor extension only 18 months old [some serious lack of planning here!) so I don't want to screw it up with a bodge.
I want to run a spur to an FCU from an existing double socket on a ring final. Plasterboards is on dabs over aerated concrete block, being the inner skin of a cavity wall. If I channel through the dabs, I reckon I can fish the cable through the hollow "non-dab" sections. I have about 1m to an internal corner, then another 1m along the adjacent wall. The FCU and the socket will be at the same (current standard) height above floor level. If I just re-plaster my "channels" the cable will be trapped - is that a problem or should I use capping to leave some limited mobility to the cable.
The socket and the rest of the electrics are part of a professional install in a ground floor extension only 18 months old [some serious lack of planning here!) so I don't want to screw it up with a bodge.