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A flame detector is a sensor designed to detect and respond to the presence of a flame or fire, allowing flame detection.Responses to a detected flame depend on the installation, but can include sounding an alarm, deactivating a fuel line (such as a propane or a natural gas line), and activating a fire suppression system.
A thermal switch (sometimes thermal reset or thermal cutout (TCO)) is a device which normally opens at a high temperature (often with a faint "plink" sound) and re-closes when the temperature drops. The thermal switch may be a bimetallic strip, often encased in a tubular glass bulb to protect it from dust or short circuit. Another common design ...
When a rise in temperature occurs, the fire damper closes, usually activated by a thermal element which melts at temperatures higher than ambient but low enough to indicate the presence of a fire, allowing springs to close the damper blades. Fire dampers can also close following receipt of an electrical signal from a fire alarm system utilising ...
A fire screen or fireguard began as a form of furniture that acted as a shield between the occupants of a room and the fireplace, and its primary function was to reduce the discomfort of excessive heat from a log fire. Early firescreens were generally shaped as flat panels standing on attached feet, or as adjustable shield-shaped panels mounted ...
Applied to the glass enclosure of a conference room. When the glass is transparent, one can see into or out of the room, and when it is non-transparent it can be used as a projection screen. Energy-saving function of glass curtain wall; Indoor decoration of residence: Lighting cover glass curtain, sunshine house, living room and bathroom ...
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System tests could be conducted in one of two ways: In a coded pull station, there is either a test hole on the front (usually activated with an Allen wrench) or a test switch on the inside. Turning the switch one way causes the notification appliances to sound continuous (or in the case of single-stroke bells, ding once). Turning it the other ...
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