Fire Detection and Alarm

Fire Detection and Alarm

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 34. Chapters: Smoke detector, Fire alarm control panel, Fire alarm system, Flame detection, Distributed temperature sensing, Fire alarm notification appliance, SimplexGrinnell, Aspirating smoke detector, Manual fire alarm activation, Flame detector, Cooper Wheelock, Heat detector, Faraday, Fire alarm box, Federal Signal Corporation, Gentex, EN 54, System Sensor, Space Age Electronics, Notifier, Holtzer-Cabot, Standard Electric Time Company, Fire-Lite, Control and Indicating Equipment, Honeywell Life Safety Group, S.H. Couch, Canadian Fire Alarm Association, Benjamin Electric Manufacturing Company, FlareBrands, Thermal lag. Excerpt: A smoke detector is a device that detects smoke, typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system, while household detectors, known as smoke alarms, generally issue a local audible and/or visual alarm from the detector itself. Smoke detectors are typically housed in a disk-shaped plastic enclosure about 150 millimetres (6 in) in diameter and 25 millimetres (1 in) thick, but the shape can vary by manufacturer or product line. Most smoke detectors work either by optical detection (photoelectric) or by physical process (ionization), while others use both detection methods to increase sensitivity to smoke. Sensitive alarms can be used to detect, and thus deter, smoking in areas where it is banned such as toilets and schools. Smoke detectors in large commercial, industrial, and residential buildings are usually powered by a central fire alarm system, which is powered by the building power with a battery backup. However, in many single family detached and smaller multiple family housings, a smoke alarm is often powered only by a single disposable battery. The first automatic electric fire alarm was invented in 1890 by Francis Robbin...Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.

Title:Fire Detection and Alarm
Author: Books, LLC
Publisher:Books LLC, Wiki Series - 2010

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