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Topic Title: modular 600mm 1200mm light fittings
Topic Summary: fire hoods
Created On: 25 September 2012 02:05 PM
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 25 September 2012 02:05 PM
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Avatar for zeeper.
zeeper

Posts: 1409
Joined: 11 July 2008

Most of the office space here uses modular fittings with a void space above of 1.5 to 2.5ft. I was replacing some knackered fittings the other day and realised that I had not considered if each fitting should be enclosed with a fire hood.

Any advice on this would be well received.
 25 September 2012 05:09 PM
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Avatar for OMS.
OMS

Posts: 19656
Joined: 23 March 2004

Find out where the compartment lines are - probably not the suspended ceiling so the fittings wouldn't need them

In circulation areas etc, you might need TPa diffusers to stop hot plastic dripping down the firefighting crewmans neck

If the ceilings are comparment lines, you can buy modular fire hoods for 1200 x 600 and 600 x 600 units

If the void spaces exceed 800mm perhaps a look through BS 5839-1 and protection of those voids might be worthwhile

Regards

OMS

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Failure is always an option
 25 September 2012 06:29 PM
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peteTLM

Posts: 3149
Joined: 31 March 2005

Often if the suspended ceiling does form a compartment, it will have spring metal hold down clips on every tile to fix them firmly in place.
If you can push them up i would say no.

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Lack of planning on your part doesn't make it an emergency on mine....

Every man has to know his limitations- Dirty Harry
 25 September 2012 06:34 PM
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Avatar for OMS.
OMS

Posts: 19656
Joined: 23 March 2004

There are often spring clips on tiles to stop them lifting when people slam doors etc - I wouldn't take the presence or absence of spring clips as a guide.

The only way to know is to see details of the compartment lines drawings approved by building control.

A suspended ceiling may be a fire rated compartment line, but it's not usual

regards

OMS

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Failure is always an option
 26 September 2012 07:06 AM
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Avatar for zeeper.
zeeper

Posts: 1409
Joined: 11 July 2008

Thanks chaps
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