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Thread: cold room fire protection
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18-06-2007, 04:45 PM #1
cold room fire protection
Hi
What is the most practical fire protection system/method for cold rooms operating just above 0 degree C
thanks
raja
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18-06-2007, 07:25 PM #2
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19-06-2007, 01:34 AM #3
Re: cold room fire protection
Hi Taz
Well, I will try not to smoke in there ,
thank you for your teply Taz
raja
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20-06-2007, 01:44 PM #4
Re: cold room fire protection
I heard something about dust (maybe powder) fire-extinguisher. Try to use this one
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20-06-2007, 08:21 PM #5
Re: cold room fire protection
CO2 fire supression is the best, even better is well designed and protected electrical system. IE a light and fan do NOT need a 20AMP breaker or fuse! the light and fan should have their own fuse matched to their amperage befor they go in the box.
Think of what can or could cuase a fire and remove them out side of the box away from any thing that CAN burn.
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21-06-2007, 03:24 AM #6
Re: cold room fire protection
This subject is way out of my expertise but there are several different types of sprinkler systems, i.e., wet charged and dry charged for basics.
I believe both of these use water for fire suppression, but the dry charged system does not have water in the piping until a fire is detected. Another type is a powder I believe.
I think you need to check with the insurance company providing protection coverage as they may specify the type you will use.If all else fails, ask for help.
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21-06-2007, 05:18 AM #7
Re: cold room fire protection
Hi there,
There is a book "Cold Store Guide" 3rd edition published by the International Institute of Refrigeration which has a complete section for Fire Safety.
ISBN 2 903 633 63 11
Hope you can find it.
CheersLast edited by lana; 21-06-2007 at 05:24 AM.
Even Einstein Asked Questions
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21-06-2007, 08:46 AM #8
Re: cold room fire protection
Do you have to use any smoke/fire detectors in that. We had a terrible experiece with those as operation at zsubzero temps is highly doubtful & one keeps getting signals all the time. This mostly hapens due to misture going in. We finally used Silicone sealnt all around the elec control circuit & that noise stopped.!!!
The wiring has to be done from the top that as well saves lots of issues of similar kind.
Ofcourse what is the size of the cold store? The fire system has lots of design implications on this aspect too.
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25-06-2007, 01:08 AM #9
Re: cold room fire protection
Hi
Thank you all for the replies
cheers
raja
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26-06-2007, 01:11 AM #10
Re: cold room fire protection
I just happened to fnd a link that may be useful for additional information....
http://www.tyco-fire.com/
Perhpas this will help you.If all else fails, ask for help.
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26-06-2007, 07:32 AM #11
Re: cold room fire protection
The dry system is done this way: they pressurise first the system with dry nitrogen just above the pressure of the supply water. They then opens the water valve and the system is ready.
Thisis a frost free set-up and as soon one sprinkler brakes, the nitrogen will escape through this sprinkler and the water will follow immediately after it.It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
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26-06-2007, 07:12 PM #12
Re: cold room fire protection
The dry system I saw at a plant where I worked once ,had compressed air instead of nitrogen . a compressor was attached to the system to keep the air pressure up . I thought this was better than nitrogen because if the nitrogen slowly leaked the sprinklers would come on ( hockey anyone ??). with the air compressor you would notice the compressor cutting in more often and fix slow leaks before it was too late
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26-06-2007, 08:32 PM #13
Re: cold room fire protection
They told me it was nitrogen.
The glass bulb in the sprinkler brakes due to excessive heat, so the first thing what will happen is that compressed air will blow over the fire, so this will increase rapidly the fire.It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
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