Downlighters near flammable surfaces

[GaryMo]

Carrying out a PIR today I came across these downlighters fitted to multiple rooms upstairs. The loft is boarded with chipboard which has holes bashed out above some of the downlighters. Other downlighters have chipboard flooring covering them completely.

Notice the F symbol, this means the luminaire is suitable for direct mounting on normally flammable surfaces.

What doesn't seem right to me is an open backed fitting with a 50W lamp creating an excessive amount of heat. How can these be rated for direct mounting on flammable surfaces?

 

[Spark123]

There is a difference in some of the reflectors - some of them cause the heat to radiate down away from the fitting (aluminised.)
Clicky

 

[GaryMo]

How can you guarantee that the correct lamp will be fitted at future lamp changes thus avoiding a potential fire?

 

[Spark123]

The dichloric lamp base will accept dichloric and aluminised lamps, and aluminised lamp base will only accept an aluminised lamp. See page 3 of the clicky above^^

 

[GaryMo]

I'll have a read. Thanks for the link.
There was an awful lot of heat being generated from these fittings. The chipboard flooring was nice and warm!

 

[seasickstevie]

It's good to cut down on the heating bills at this time of the year

 

[333rocky333]

I have been in wholesalers, and they have sold normal open fittings , and

just given either a gu 10 holder or a 12volt holder, to the buyer for the same fitting.

no mention of heat from lamps or anything to the customer.

I agree its wrong though, see this, this week.

These were open fittings.

The wire was so short with the lamp fitted, the j/b was resting on the side

of the lamp, about 80 fittings are similar.

Untitled

• 333rocky333
• 30 Sep 2008
• 1

Untitled

• 333rocky333
• 30 Sep 2008
• 1