Mains stuff really needs thermosetting plastics so it doesn't turn into cheese if something goes wrong and gets hot. Telecoms can use thermosoftening plastics, as there's not enough power there to overheat anything.
type of plastic use in UK home electrical fittings
Jun 09, 2009
24 Replies
Yes, I found out the 'hard' (brittle?) way that, to some extent, the patress needs to be of better quality than the fitting. Even a slightly uneven wall can break a patress before the screws are done up. As for a cheap patress under a 40A pull-switch...!
I usually dremel the snap-lines before the final snap for just this reason
Easier and quicker to use a hacksaw? Unless you're dribble, obviously. ;-)
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I bash it out with a screwdriver and then use a dremel abrasive band to clean up the edges if the break isn't clean.
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