Protection
A fire alarm system is usually part of a total security system providing burglary protection in addition to fire protection. Such a system supervises doors, windows, and spaces for break-in and may provide monitoring services to report a fire or intrusion to a security office, where it will be reported to your local police or fire department. These systems consist of a central control panel to which smoke alarms and heat detectors are connected, along with bells or horns that are activated when the system triggers an alarm. Other sensors associated with the burglary functions connect to doors and windows or monitor rooms for motion or body heat. The control panel operates from A/C power but also usually contains an emergency battery which can operate the system for about 24 hours during a power outage.
Basic Requirements
The basic requirements for the number and locations of alarms and detectors should be calculated based on type of room and square footage. A well designed fire alarm system gives you more flexibility to locate additional alarms and additional bells or horns (or flashing lights, should a person in the facility be hearing impaired).
Smoke Alarms
Several studies have concluded that when working smoke alarms are present, the chance of dying from the fire is cut in half. The smoke alarms currently in place have saved thousands of lives, but several problems exist. First, the 12% of homes without alarms have more than half of the fires; second, it is estimated that a third of the smoke alarms in place are not working, often due to failure to replace a worn out battery; and third, many homes do not have as many smoke alarms as are needed to protect the occupants properly.
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