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A fire alarm system is number of devices working together to detect and alert people through visual and audio appliances when smoke/fire is present.

Fire is one of the most dangerous events possible; somewhere in the world, one occurs every minute of every day. While fire can be our friend in some instances, it can be our worst enemy when it’s uncontrolled and allowed to continue through a building. Fire is, of course, destructive, and the smoke from a fire creates a toxic, dangerous atmosphere. The rapid detection of a fire and its control can save several thousand lives, thousands of injuries, and millions of dollars in property loss each year.The field of fire detection has advanced to where smoke detectors and alarm devices have combined to become life-safety systems. The purpose of an automatic fire-alarm system is to detect an occurrence, alert the control panel and proper authorities, and notify the occupants to take action.

The automatic fire-detection system, like any other asset, has a lifespan of 10 to 15 years. After 15 years, it is no longer considered reliable, and there may not be parts available for its repair. The fire-detection system today consists of an FACP (fire alarm control panel) – this is the system’s brain, and it’s capable of making rapid decisions. Detection devices run the gamut, from smoke detectors and heat detectors to multi-capability detectors, which contain a number of functions in one detector. Many of the detectors manufactured today have addressable switches contained in the detector that allow the detector to tell the FACP exactly where the fire is located. The detection devices detect the presence of smoke or particles of combustion and then alert the FACP about a problem; the FACP then decides what action to take.