sense one or more of the products or phenomena resulting from fire, such as smoke, heat, infrared and/or ultraviolet light radiation, or gas.
In dwellings, smoke detectors are often stand-alone devices. In non-domestic buildings, fire detection will typically take the form of a fire alarm system, incorporating one or more of the following automatic devices:
Evacuation Alarm System
The purpose of an evacuation alarm system is to warn the individuals in a particular room/area about a fire or dangerous situation. It tells all persons present to leave the building.
This can be done in several ways:
Fire Alarm System
A system or portion of a combination system that consists of components and circuits arranged to monitor and annunciate the status of fire alarm or supervisory signal-initiating devices and to initiate the appropriate response to those signals
Basic Components of a Fire Alarm System: