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Associate
Engineering Fields - Energy Engineering - New Member India - Member - Jack of all trades

Join Date: Jan 2008
Location: India
Posts: 43
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Fire Detection System

03/10/2008 2:25 AM

Hi,

I am at the conceptual planning stage of designing a fire detection and alarm system for GLP/GMP compliant area. The relevant data are -

1. Total area - 2000 Sq feet.

2. GLP/GMP rooms of about 20 x 10 feet each - total 10

3. In two room there will be aluminum-glass partition.

4. There will be false ceiling in all the rooms with coved corners.

5. The entire area shall be centrally airconditioned with chilled water package units.

I have the choice to choose between conventional system comprising smoke and heat detectors, response indicators, manual call points, hooters, zonal panel and PA system etc. and a wireless system.

The main constraint is that there should be minimal need of maintenance, as the area would be access controlled and frequent entry of the maintenance personnel shall be undesirable.

I would request experienced senior members to offer comments.

Kind regards...

Kamal

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Guru
Philippines - Member - New Member Engineering Fields - Instrumentation Engineering - New Member Engineering Fields - Control Engineering - Who am I?

Join Date: Oct 2006
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#1

Re: Fire Detection System

03/10/2008 8:15 AM

I left the fire alarm systems field long before wireless systems came to be so I can't offer much in that way. I don't know how your wireless system will be set up but if the devices are using batteries, I don't think it can be classified as low maintenance since you'll have to change the batteries from time to time.

In a conventional system, as long as you install them properly and take care to keep the devices from incidental damage (such as a guy with a ladder smashing a smoke detector as he carried it over his head - the guy happened to be me ), you should not have to maintain the system too much.

I don't know what your interpretation of low maintenance is but you will have to test the system from time to time. That means blowing smoke onto the smoke detectors, triggering the alarm bells, sirens or horns, etc. Most places I know do it once a year. Others do it more frequently.

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#2
In reply to #1

Re: Fire Detection System

03/11/2008 12:38 AM

Thanks Vulcan.

From my point of view, low maintenance means the need to replace defective detectors/ other system components over a period of time. I have used conventional systems at 3-4 places and am satisfied with the performance. But, I am alien to wireless system and would like to specifically know the rate of failure of such smoke/heat detectors and other relevant factors viz. probability of false alarm triggering etc.

Kind regards,

Kamal

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