How to extinguish the fire

How to extinguish the fire

Where and for whatever reason the fire has arisen, it always develops according to the certain scheme caused by physical laws. Measures for suppression of fire will depend on in what phase development of the fire and what means you have.

Instruction

1. In the first phase fire occupies all space on which can only extend by means of combustible materials. At this moment flame temperature low, also as well as the speed of spread of fire. In end of phase height of flame increases to the maximum level and at this moment the flame can be thrown on buildings standing close by or objects. The separate centers merge in uniform column.

2. The second phase is steady equal flame which gradually absorbs the bulk of combustibles. During this period there is destruction of load-carrying structures of the building.

3. At the final stage all materials which can only burn burn out and the building falls. Burning speed at the same time rather low and thermal radiation respectively too.

4. So, if the fire has occupied the extensive territory, then in this case apply way of isolation or cooling. For example, if containers with fuel burn, then it is necessary to isolate each capacity. If the wood burns, then extinguish it by gradual localization of seats of fire.

5. If you are in the building in which there was fire, then keep in mind that in the first phase fire quickly spreads and quickly heating up, materials emit the smoke and carbon monoxide invisible and very dangerous. At this moment it is necessary to manage to leave the building before the collapse of designs.

6. It is simpler not to allow the household fires, than to extinguish. If the household appliance has lit up, it is necessary to disconnect power supply, to throw dense fabric over the device and only after that to extinguish water or the fire extinguisher. If the flame was thrown on curtains, they need to be broken, thrown on floor, to be trampled and throw in bathtub with water. At suppression of fire it needs to move towards, but not to catch up to prevent distribution.

7. If you see that from under door dense caustic smoke makes the way, means where there is ignition center not enough oxygen, and it will go out by itself soon, from you it is only required to stop up densely all slots, it is desirable wet rag. Do not open window at all to air the room. The new portion of oxygen will lead to instant flash of fire, and it will extend even more.

8. The fire in the building is extinguished by means of fire extinguishers, hydrants which have to be in each public building and also any nonflammable bulks: sand, earth and other. If the center manages to be localized, then it is left before full burning out of materials.

9. For suppression of fire in the forest use several tactics. It can be full environment of fire with gradual narrowing of the center; creation of oncoming lane of fire (so-called annealing); creation of trenches, channels, embankments on the way of fire. The last option, apply at suppression of difficult peat fires. For this purpose on all perimeter of the fire dig out protective ditches on depth of peat layer.

10. The fires on open space extinguish abundant watering not of the fire, but the territory adjacent to ignition zone. The flame is forced down brooms. The way of suppression by creation of protecting strips is not less effective. At the edges of 20 m of width of strip dig round bulldozers, and in the center all burn out.

Author: «MirrorInfo» Dream Team


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