Definition
False Alarm
A false alarm, or unwanted fire signal (UWFS), is an activation of a fire alarm system that does not result from a genuine fire. False alarms waste fire and rescue service resources, desensitise occupants to alarm signals, and reduce the effectiveness of the fire safety system. BS 5839-1 requires responsible persons and their engineers to investigate and address recurring false alarms by reviewing detector siting, type selection, and building processes.
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