How Are Fire Alarms Activated?
Heat detectors are designed to activate the alarm systems after detecting a rising temperature. In the event of a fire accident, they activate the alarm systems, prompting residents to vacate immediately. For this reason, having systems that monitor smoke and heat detectors is a superb decision for property owners to safeguard the investments and lives of people.
Heat detectors were invented in the 1890s by Francis Upton. While they are the oldest means of detecting fire in a room, they are still the most effective and reliable compared to smoke detectors, but they do have a slower response time.
There are different heat detectors, each with a unique technique for sensing heat. The two common types are fixed temperature and rate of rise.
- Fixed Temperature – Fixed temperature activates the alarm when the sensing element is heated to a specific temperature. For instance, if a heat detector is set at 135°F, the alarm only activates when the temperature in the room reaches this level or goes above this set temperature.
- The rate of rise – The rate of rise heat detectors will detect the room’s abnormal temperature rise and activate the alarm.
- Other less common heat detectors are rate compensation sensors, line-type heat detectors, and thermal detectors.
Now, you understand how heat detectors work. Get one that suits your safety needs best!
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