hstraf Posted January 23, 2014 Share Posted January 23, 2014 Hello,I need some help understanding what is the best way to run wires behind the wall. (I need to add two new electrical plugs.)The wall is built with plaque de plâtre (gyprock) that has a 10cm backing of rigid styrofoam (polystyrene), which is then glued to the cement blocks.I thought perhaps I could heat up a fishing weight and drop it down the back of the plaque de platre to melt the Styrofoam and create a tunnel... but in this situation I need to run the wires horizontally, not vertically.Any ideas how to do this? Thanks! Link to comment Share on other sites More sharing options...
Théière Posted January 23, 2014 Share Posted January 23, 2014 Yes, Pass a few strands of iron wire through behind the placo, connect them to a few car batteries and when they heat up it will melt the polystyrene causing it to shrink back and allow you to pull the gain through. Alternatively you'll have to hire me and my specialised equipment to do it. Link to comment Share on other sites More sharing options...
monsieur macon Posted January 30, 2014 Share Posted January 30, 2014 yes, electricians use a very hot fishing ball and melt the foam behind the plasterboard. This method is however no longer in conformity with building regulations, but then again, who's gonna check!!!! Link to comment Share on other sites More sharing options...
Théière Posted January 30, 2014 Share Posted January 30, 2014 Really, there is somewhere an overpaid, over opinionated, overhead actually passing rules? ;-) to stop people who have insulated plasterboard changing the socket/switch layout, as you say how are they going to check. It's a problem so I made a heated (electrically) tool for the job. safer than overheating anything as it's thermostatically controlled and works very well as it doesn't cool down like manually heated versions which then require a second or third insertion which I found in the early attempts often then went off on a slightly different route. But then fishing and electricians, do they really believe they can out think a fish? (big smile) Link to comment Share on other sites More sharing options...
crack Posted January 30, 2014 Share Posted January 30, 2014 Its not against regulations when you can buy this http://www.laperchediffusion.fr/index.php?cPath=1&osCsid=b26b14c3a988dbd131ac0cd6674d86d7 Link to comment Share on other sites More sharing options...
Théière Posted January 30, 2014 Share Posted January 30, 2014 Ha ha, not very different to what I made to do the job, wonder how much theirs costs? Link to comment Share on other sites More sharing options...
monsieur macon Posted January 30, 2014 Share Posted January 30, 2014 it may be on sale, indeed i even have one, but it is no longer DTU conform. That is, for new builds or reno jobs that include changing more than 30% of the existing surface and thus engaging the RT2012 new regulations...But like a lot of things in France, they just tend to ignore the rules, so when in Rome!!! Link to comment Share on other sites More sharing options...
monsieur macon Posted January 30, 2014 Share Posted January 30, 2014 and whats more, it stinks when you use it!!!! Link to comment Share on other sites More sharing options...
Théière Posted January 30, 2014 Share Posted January 30, 2014 Yep, but it's a lot better than the alternative of breaking out which must also be against the regs for the same reason. So no changing anything. Actually theirs smoke more than mine in the video how adjustable is it temperature wise? Link to comment Share on other sites More sharing options...
monsieur macon Posted January 30, 2014 Share Posted January 30, 2014 "breaking out", that's what i do after a "doube au singlier"....lol Link to comment Share on other sites More sharing options...
crack Posted January 31, 2014 Share Posted January 31, 2014 Which DTU reference do these tools contravene? Link to comment Share on other sites More sharing options...
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