The public sector requires the highest degree of protection, with consideration given to the size of the premises, the number of people occupying them and the speed of evacuation required.
Depending on level of noise, special beacons are installed to supplement the conventional sirens and bells.
Also, in order to prevent panic, multi stage fire alarms are designed to silently alert security staff, who then decide whether to activate full evacuation mode. If no response is received by the system, full evacuation mode initiates automatically.
Depending on situations, pre recoded voice notices alert the public, without causing panic.