A couple of posts mention using spray foam inside raceways, is that stuff approved for use within electrical equipment?
That kinda a thin line to walk on that IMO they genrally not approved unless the UL did test on them however I know the UL did test on flamé test on them but for other means I am not too sure on UL side but in France we can do that but it will not honour the warranty if the expanding foam cause issue with it { what I heard some can attack the plastique materals }
Merci.
Marc
Noté: I think John { Reno } may know little more on this matter so if he do read this so he may comment little more on his part.
