High-rise buildings generally have a height of 24 to 100 meters, of which more than 50 meters is called a high-rise, and 100 meters or more is called a high-rise. In the event of a high-rise building fire, the stairs can be used for emergency purposes. In case of escape, they should make full use of smoke-proof stairwells, enclosed stairwells in the building, corridors with external windows, refuge floors, and descending devices, rescue bags, and safety ropes. facility. In the case of escape, the first criterion is to evacuate the fire and wait until the fire returns. High-rise fire escape knowledge manual: 1, find the fire exit, run downstairs. 2, then go downstairs is the fire, should find the right room to avoid waiting for rescue. 3. Find the room with windows and seal the entrance to the smoke. 4. Shake bright things in the room (flashlight at night) and use good wet towels and fire extinguishers to stop the fire from spreading. According to the existing national laws and regulations, buildings above 100 meters should have refuge floors. Where is the refuge floor of high buildings? 1. For public buildings over 100 meters in size, usually every 10 floors to 15 floors must be provided with a refuge floor. 2, the refuge layer can accommodate 5 people per square meter. People can't live in peacetime. In principle, they are not allowed to work. 3, the use of special fire wall materials, and many other specific requirements. Common high-rise escape mistakes: take the elevator, blindly jump and other irrational practices, drill to the bed, closet and other medium-fire the most dangerous place.
R141B,Dichlorofluoroethane (HCFC- R-141b) is a nontoxic and colorless
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remover as well. Refrigerant R-141b has following characteristics:
1. Chemical Stability: It can be
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2. Dissolvability: It can dissolve in
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grease and lubricant, and no obvious effects on most polymers including
plastics and rubbers.
3. Toxicity: The toxicity trials
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on hum an skin and eyes, but inhalation of high-concentrated refrigerant R-141b
will cause anaesthetic effect.
4. Flammability: HCFC-141b is
inflammable, it should be stored in ventilated place without flame.
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High-rise fire escape manual
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