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kwoznia1
Commentator

Join Date: Sep 2009
Posts: 99

FIRE ALARM SYSTEMS! MINING!

01/05/2011 4:59 PM

So I am going through some fire alarm systems and need some answers to some questions I cannot figure out and before I go to my boss.

1) What is a pre action solenoid? It is part of a fire suppression system and I believe it has something to do with the abort portion but may be wrong.

2) Came across an isolation module for a fire addressable system and can't seem to get a straight answer at the moment.

3) Came across a sprinkler suppressed valve. I don't believe this is a flow sensor but some kind of control.

Thanks in advance from Thunder Bay.
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mountk2
Power-User

Join Date: Jun 2010
Posts: 348
Good Answers: 10
#1

Re: FIRE ALARM SYSTEMS! MINING!

01/05/2011 8:34 PM

Probably the best advise to you is to go to your boss as planned.

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Anonymous Poster
#2
In reply to #1

Re: FIRE ALARM SYSTEMS! MINING!

01/05/2011 8:48 PM

Another engineer who cant answer the question asked.
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Anonymous Poster
#3

Re: FIRE ALARM SYSTEMS! MINING!

01/05/2011 10:33 PM

1. Search and read about Pre action system. This is a combination of detectors and sprinkler controlled by fire alarm panel and a compressor pump.

2.Isolation modules normally installed one in every 20nos(depends on each system manufacturer data) of detectors in a addressable ring loop system. This module will isolate only 20nos of detectors in that group in case of any short/fault in the loop. So other detectors in the loop will not be affected.

3. Search and read fire suppression system as like FM 200. you will get the information.
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Anonymous Poster
#4

Re: FIRE ALARM SYSTEMS! MINING!

01/06/2011 6:56 AM

Your Senior would be in a position to provide you Operation and Maintenance manuals as well as as-built drawings. Study those for a clear grasp of subject.
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