hi can you tell me if there is a regulation on the internal fixings of an emergency light fitting eg;do the fixings need to be non combustible or is glue ok

I am not sure what you mean by internal fixings of an emergency light fitting, if it is the fixing of the luminaires to the ceiling/wall then I would say it needs to be non combustible. (metal) All wiring in escape routes need to be supported with non combustible clips to prevent them from collapsing in a fire, the latest IEE regulations now require it, which includes wiring used in escape lighting (BS 5266 part 1). Therefore common sense dictates the luminaires need to be as well except in domestic premises which is not covered by legislation.