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In the event of a fire, a smoke control system is used to keep a building's escape routes and access routes free from smoke, assist fire-fighting operations and delay or prevent flashover, thereby reducing the risk that the fire will escalate. [1]
At first, lack of response arising from ignorance of the situation to outright disbelief or denial, is often noted. Different, confusing stimuli (e.g., smells of burning or smoldering, smoke, power outages, or tremors) may be detected and not put together to form a plan to evacuate, thus increasing pre-movement time. If occupants are performing ...
Ventilation is a part of structural firefighting tactics, and involves the expulsion of heat and smoke from a burning building, permitting the firefighters to more easily and safely find trapped individuals and attack the fire. It is frequently performed from the outside of a burning building while the fire is being extinguished on the inside.
The smoke kills by a combination of thermal damage, poisoning and pulmonary irritation caused by carbon monoxide, hydrogen cyanide and other combustion products. Smoke is an aerosol (or mist) of solid particles and liquid droplets that are close to the ideal range of sizes for Mie scattering of visible light. [5]
Smoke detector mounted on a ceiling. 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 125 millimetres (5 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary.
It is recognized that 74 percent of homes do have working smoke detectors installed. [2] Generally taught more to adults (particularly homeowners), a core part of fire prevention outreach involves encouraging people to ensure that they have an adequate number of smoke detectors installed in their home and how to maintain them.
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Fire-resistance rated wall assembly with fire door, cable tray penetration and intumescent cable coating. Passive fire protection (PFP) is components or systems of a building or structure that slows or impedes the spread of the effects of fire or smoke without system activation, and usually without movement. [1]