What is the main purpose of a fire alarm system in physical security?

The main purpose of a fire alarm system in physical security is to detect smoke or fire and alert occupants for safe evacuation. This is critical because early detection of fire can significantly reduce the risk of injury or loss of life, as well as minimize property damage. The system is designed to sense the presence of smoke or heat, triggering alarms that notify individuals within the building to evacuate immediately. This prompt response is crucial to ensure that everyone can exit the premises safely and quickly, especially in situations where visibility and air quality may deteriorate rapidly due to smoke.

While aspects like monitoring energy use and providing security alerts serve important functions in building management and security, the primary focus of a fire alarm system is life safety through prompt detection and notification, making it an essential component of physical security measures in any facility.