Eliminating false alarms is an important consideration when designing and specifying a fire detection system, but sometimes it seems that this one aspect of fire detection is beginning to obscure other priorities -like actually detecting fires! Starting from first principles, what is a false alarm? It is an alarm raised by the fire detection system that turns out not to have been triggered by a genuine fire. False alarms can be caused by poor system design, poor or non-existent maintenance, a change of use of rooms or buildings without a review of the detection system, poor staff discipline and by the fire detection system itself.
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