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A smoke detector is a device that senses smoke, typically as an indicator of fire. Smoke detectors/Alarms are usually housed in plastic enclosures, typically shaped like a disk about 150 millimetres (6 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary. Smoke can be detected either optically (photoelectric) or by physical ...
A fire alarm system is a building system designed to detect, alert occupants, and alert emergency forces of the presence of fire, smoke, carbon monoxide, or other fire-related emergencies. Fire alarm systems are required in most commercial buildings. They may include smoke detectors, heat detectors, and manual fire alarm activation devices ...
An end-to-end optical beam smoke detector is a system that has a separate light transmitter and receiver. They are used in applications where there is little available room to install a wide area detector – as the receiver is on a separate element each individual unit is quite small. [9] The small size of the detector is also an advantage for ...
A TOP-SENS2 ASD unit made by Wagner (Germany) An aspirating smoke detector (ASD) is a system used in active fire protection, consisting of a central detection unit which draws air through a network of pipes to detect smoke. [1] The sampling chamber is based on a nephelometer that detects the presence of smoke particles suspended in air by ...
Fire sprinkler system. A glass bulb type sprinkler head will spray water into the room if sufficient heat reaches the bulb and causes it to shatter. Sprinkler heads operate individually. Note the red liquid in the glass bulb. A fire sprinkler system is an active fire protection method, consisting of a water supply system providing adequate ...
I have 2, 000 alarms at my disposal to install if we can do that." He said detector units will be installed following the NFPA standard of one detector for every 500-1, 000 square feet of a residence.
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