Thursday, September 29, 2016

Fire alarm system-design secrets



Addressable  system design secrets:
·      Distance between Smoke Detector mustn’t exceed 10 m to avoid dead area between detectors
·      Distance between heat Detector mustn’t exceed 7 m to avoid dead area between detectors
·      Fire detector must be mounted at least one meter from any forced air inlet.
·      Ramps at car parking must be covered by heat detectors
·      Voice evacuation located at escape stair must be in a separate loop.
·      Fire fighter telephone must be located at elevator lobbies & pump rooms.
·      Each fire loop must have 20% spare capacity.
·      Access control system ( ACS ), elevator, Door holder,Public address system ( PA ), exhaust fan’s, Air Handling Units( AHU’S ) connected to fire alarm system via control module ( CM )
·      Fire fighting system( FM200, CO2, Sprinkler system( flow switch & Tamper switch ) ) connected to fire alarm system via monitor module ( MM ).
·      Alarm bell located at 2200mm above finished floor level.

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