I'm installing insulated plasterboard (Gyproc Thermaline 60mm) on inside of exterior walls of living room using drywall adhesive. I'm also moving the sockets that were on the wooden skirting up higher and off the skirting (I was advised at periodic inspection they shouldn't be on the skirting).
Raising the sockets to 45cms from the floor I need to run the ring main cables up behind the plasterboard. I was planning to use 2 x 50cms length of oval pvc conduit (separate conduit for each ring cable) up to the socket. I know I musn't embed in the insulation. If I use 16mm oval I shouldn't need to grind/chisel out any brick, the conduit will be in the cavity between the plasterboard and the brick wall. I think 20mm will be a little too thick and require some chiseling to embed in brick so that the board sits happily.
But reading other posts on this forum I see T&E isn't really meant to go in conduit.
As it is only a short run, and one T&E cable per 16mm oval does leave some room for the cable to "breathe", does this sound OK? Or is just covering the T&E with PVC capping better? Or even chisel a channel and then use capping.
In another room I've already used 25x16mm pvc channel to carry a fused spur from ceiling to floor (in "safe" zone above fused junction unit) behind the same Thermaline board but that wall was plastered so I had a bit mroe room chiselling the plaster away. Given that that was a longer run and to be on the safe side for any derating I actually used 3 or 4mm T&E for that. Again is using such as rectangular pvc channel around a single T&E cable a problem? Would rather get it right than have someone come along later and think it looks duff. Not that I fancy taking the board off now...
Raising the sockets to 45cms from the floor I need to run the ring main cables up behind the plasterboard. I was planning to use 2 x 50cms length of oval pvc conduit (separate conduit for each ring cable) up to the socket. I know I musn't embed in the insulation. If I use 16mm oval I shouldn't need to grind/chisel out any brick, the conduit will be in the cavity between the plasterboard and the brick wall. I think 20mm will be a little too thick and require some chiseling to embed in brick so that the board sits happily.
But reading other posts on this forum I see T&E isn't really meant to go in conduit.
As it is only a short run, and one T&E cable per 16mm oval does leave some room for the cable to "breathe", does this sound OK? Or is just covering the T&E with PVC capping better? Or even chisel a channel and then use capping.
In another room I've already used 25x16mm pvc channel to carry a fused spur from ceiling to floor (in "safe" zone above fused junction unit) behind the same Thermaline board but that wall was plastered so I had a bit mroe room chiselling the plaster away. Given that that was a longer run and to be on the safe side for any derating I actually used 3 or 4mm T&E for that. Again is using such as rectangular pvc channel around a single T&E cable a problem? Would rather get it right than have someone come along later and think it looks duff. Not that I fancy taking the board off now...