What is the primary function of a notification appliance in a fire alarm system?

The primary function of a notification appliance in a fire alarm system is to alert building occupants to a fire emergency. These appliances are critical components that ensure occupants are made aware of a potential danger, allowing them time to evacuate the premises safely. They can take various forms, such as horns, strobes, alarms, or speakers, all designed to draw attention and convey the urgency of the situation.

This function is essential, as effective notification can significantly reduce the risk of injury and fatalities during a fire event. Acting quickly on alerts helps ensure a rapid response, whether that's evacuating the building or calling the fire department.

While other functions such as disabling alarms, recording events, and maintaining battery power are important within the broader context of a fire alarm system, they do not serve the primary purpose that directly impacts the safety of individuals within a building during a fire emergency.