fire rated LED light covers

[Midwest]

Well, as said no expert in the field. However, in the premise I work, there are 30min fire doors, fronting protective shafts. The outer walls of the shaft are 90mins. It has been designed that way, and passed BR.

I think you are misguided, no offence. If you were advising against fitting 30min luminaries in 90min ceiling, I could understand your view point.

 

[ferg]

Without actually going to the effort of looking at a data sheet.

Does that mean that the 90 minute DL's we fit have been tested at 30, 60 and 90?

So as long as they are installed correctly would comply in any of the 3 scenarios?

 

[DG599]

I am familiar with how products are tested. But I don't know how that is interpreted by building control. I'm dont know about non ceiling light questions! I was interested in the original thread, as the inspector was asking for an unknown test. So they may have some policy or interpretation

Does that mean that the 90 minute DL's we fit have been tested at 30, 60 and 90?

Strictly speaking, and refering to the advice I have gotten from test houses. No. A 90 minute ceiling is a different construction to a 30minute ceiling. So you can't infer that a light will pass when fitted to a different type. The ceiling construction is as important as the time.

 

[ferg]

Apologies for not being clear in my previous post.

I meant that the same fitting type had been tested in 30, 60 and 90 minute ceilings separately and that the fitting therefore was suitable for all 3 scenarios.

 

[Midwest]

Not sure how I unlock my profile.

That’s an option when you join. Ask @Dan how to rectify that or an moderator.

 

[DG599]

Apologies for not being clear in my previous post.

I meant that the same fitting type had been tested in 30, 60 and 90 minute ceilings separately and that the fitting therefore was suitable for all 3 scenarios.

Yes, then that’s definitely OK

 

[Andy Mc123]

Wow, thanks for the detailed reply. It still feels odd he can compell you to do extra work without the test standard to refer to. - Just making it up. I've been doing a lot of research on fire ratings, and I dont think it's well known how to interpret them. There is no fire test for lights! - Only fire tests for specific floors with the lights fitted. Were you tempted to fit surface mounted lights, which attract no fire testing criteria?

HI, regarding surface mounting lights, Yes it would have saved a load of hassle, hindsight eh....
guess as there are no official products out there to protect a ceiling cutout from fire above, the only way is by using suitable fire resistance materials, showing that you have done everything possible to avoid an potential issue, the amount of smoke to some from this i guess would be minimal, and with all these precautions in place it should be the last thing standing in the event of a fire.
I still cant believe these is nothing on the market for this though, or at least nothing that is certified...