What is the main purpose of fire alarm systems, and how do they work?

What is the main purpose of fire alarm systems, and how do they work?
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1 Answer

Answer :

The main job of fire alarm system is to detect an occurrence, alert the control panel and proper authorities, and notify the occupants to take action. The fire alarm panel is connected to the system’s initiating devices through either 2- or 4-wire circuits. This circuitry allows the control panel to monitor the state of its initiating devices, usually by zones, identifying whether the devices are in normal or alarm mode. The control panel shows these readings on its display panel. When a fire starts, the smoke or heat will activate one of the initiating devices, or someone will activate the manual pull station, alerting the fire alarm system to the fire and putting it in alarm mode.
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