Principle: In the early stage of fire, smoke, heat, flame and other physical quantities. The heat generated by combustion can be converted into electrical signals by fire detectors, which are transmitted to the fire alarm controller, and at the same time, the whole floor is informed to evacuate in the form of sound or light.
The controller records the location and time of the fire, so that people can find the fire in time, take effective measures to put out the initial fire in time, and minimize the loss of life and property caused by the fire. It is a powerful tool for people to put out fires.
Extended data
Common faults
1, main power failure. Check whether the input power supply is in good condition, whether the fuse is blown and the contact is poor.
2, standby power failure. Check whether the charging device and battery are damaged or disconnected.
3. The detector circuit is faulty. Check whether the wiring from the loop to the fire detector is intact, whether the fire detector is removed, and whether the terminal monitor is damaged.
4. False alarm of fire. It is necessary to investigate whether there are steam, oil and gas, dust and other environments that affect the normal operation of fire detectors at the scene of false alarm, and if so, try to eliminate them. Fire detectors with frequent false alarms and no other interference affecting normal work should be replaced in time.
5. If the fault cannot be eliminated for a while, the manufacturer, construction or professional maintenance unit shall be immediately notified to repair it as soon as possible and resume normal work.
Baidu Encyclopedia-Automatic Fire Alarm System