Can all fires be put out with water? (positive pressure SCBA)
Fire!!! What should I do? Almost all the first time is to say: hurry up basin water fire!!! But there are cases where water really isn’t available in the first place. In special circumstances to use water to fire, not only can not effectively put out the fire, but also may cause greater danger, please pay attention! Do not use water in these situations!
First, live fire can not be put out with water directly, because may be electric shock or great damage to electrical equipment, should choose ammonium phosphate powder, carbon dioxide fire extinguisher.
Second, oil, alcohol fire, because oil is lighter than water, alcohol, the former will float on the surface of the water, increase the combustion area is increasing losses, oil splash will burn the skin, so put out a fire oil, alcohol air isolation method should be adopted, with nearby objects, such as pot cover the burning object, immediately to isolate the effect of the air. Gas combustion should generally choose dry powder, carbon dioxide fire extinguisher. Fourth, metal fire generally use dry sand or soil cover.
What are the basic fire fighting methods? Cooling water and carbon dioxide direct injection combustion, remember to fire near the source of the fire did not burn on the spray agent, to prevent the formation of a new fire point. Asphyxiation method with non-combustible or non-combustible asbestos quilt, wet sacks, wet cotton quilt and other cover combustion materials; Burying the combustor in sand; Injecting inert gas and steam into the ignition space; Spray nitrogen and carbon dioxide on the combustor; To close the holes in buildings and equipment that are already on fire.
Isolation method will be near the source of fire flammable, flammable, explosive and combustion materials removed; Close the valves of combustible gas and liquid pipelines to reduce and prevent combustible materials from entering the combustion environment; Blocking the flow of burning liquid; Demolition of inflammable structures and equipment adjacent to the source of fire.
The importance of water for fighting fires speaks for itself! But taking water blindly may backfire. Turn water into a “fire booster” to cause a small fire into a disaster, please remember the above special circumstances! Because in the event of a big fire or need to help firefighters, know that firefighters in the fire rescue is at risk of life.
I don’t know if you know about the air respirator? Positive pressure air breathing apparatus is widely used in fire fighting, chemical, shipbuilding, oil, metallurgy, electric power, warehouse, laboratory, mining and other fire key departments, for the firefighters or rescue and ambulance crews in the smoke, gas, steam and anoxic environments such as safe and effective fire-fighting and rescue and disaster relief and rescue work, is the ideal of firefighters or rescue and ambulance personnel individual respiratory protective device.
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