Russell griffiths Posted May 21, 2020 Share Posted May 21, 2020 (edited) Evening all. So we understand that pvc electrical cable should not come into contact with EPS insulation as it effects the plasticity of the cable which can lead to the cable sheathing failing. So does this happen with pvc drainage pipe?? i will be using EPS insulation in my floor under my screed and a couple of shower pipes will need to be chased into the top layer of EPS, I’m concerned that the EPS could make the pipes brittle and wondering about either changing the insulation in those areas or coating the channel I cut with something and then installing the pipe in that. Maybe as simple as some large pipe lagging. ?♂️?♂️?♂️?♂️?♂️?♂️?♂️?♂️?♂️?♂️?♂️ Edited May 22, 2020 by Russell griffiths Link to comment Share on other sites More sharing options...
Oz07 Posted May 22, 2020 Share Posted May 22, 2020 Hope not else I'll be in the shit 1 Link to comment Share on other sites More sharing options...
Onoff Posted May 22, 2020 Share Posted May 22, 2020 PVC cable sheaths incorporate a "placticiser" to make them "plastic", aka flexible, bendy. As I understand it it's a leaching of of this placticiser that reacts badly with eps. Rigid pvc pipe lacks the plasticizer. Ergo you're OK. Put another way, you can place pvc cables in pvc trunking, within eps as the trunking is unplacticised. 1 2 Link to comment Share on other sites More sharing options...
ToughButterCup Posted May 22, 2020 Share Posted May 22, 2020 Phhhhhhhhhh ovewrthinking again ?. Bloody Hell. Link to comment Share on other sites More sharing options...
Onoff Posted May 22, 2020 Share Posted May 22, 2020 1 hour ago, AnonymousBosch said: Phhhhhhhhhh ovewrthinking again ?. Bloody Hell. Another doth hold that crown Sire! (No it's not me!) Link to comment Share on other sites More sharing options...
Russell griffiths Posted May 22, 2020 Author Share Posted May 22, 2020 F##k me never going to live that down am I. 1 Link to comment Share on other sites More sharing options...
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