Non Fire Rated Lights

[intrelec]

Thanks for the input guys. It is double plasterboard fixed to a metal frame (no grid tiles) which I'm aware is usually done to offer fire protection hence mentioning it. There is about a 400mm void to above but don't know what was above it. The lights were previously installed but a couple were moved so new holes cut in the ceiling.
In theory it could be concrete above so that would be ok I guess, but I can get the builder to clarify.

 

[Mike Johnson]

If the internal (fire rated?) partitions do not penetrate the ceiling then the fire rating could be to prevent the spread of flame above the ceiling from one room to another, irrespective of the construction above.