How to extinguish a fire?
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All fires arise, and then develop according to a uniform pattern and contain three phases.
- The first phase is the propagation process - at first the flame propagation velocity and temperature are small. This phase ends with an increase to the maximum size.
- The second phase is a stable maximum combustion before the destruction of the structure structures.
- The third phase is the collapse of structures, a significant reduction in the temperature of the fire.
How firefighters extinguish a fire
When extinguishing large fires, burning territoryis divided into separate sections. The boundaries of these sections are determined on the basis of the convenience of special units, for localization and extinguishing measures, and rescue operations.
Forest fires are uncontrollable burning of the forest. Forest fires are divided into grass-roots, upland, and underground fires. They are extinguished by the following methods:
- - the environment of the fire,
- - the creation of barrier channels, bands,
- - annealing (counter-fire beats the flame).
Peat fires, and peat burns very slowly,grab large areas. Burnt out places are very dangerous, in these areas roads, houses, equipment, people can fall through. Extinguishing of peat fires is very difficult and dangerous. The main way to extinguish these fires is digging ditches from all sides of the burning territory with a width of not less than 0.7 meters, deep into the opening of the sediment layer.
To extinguish steppe and field fires, the area to the burning site is abundantly moistened with water. Barriers are made, in width of 20 meters, edges are processed by bulldozers or plows.
Every day firefighters fulfill their professional duty. About this a lot of videos are shot, like extinguish a fire, often risking their lives.
How to extinguish a fire of petroleum products
One of the fires causing seriousMaterial and environmental damage is caused by gas and oil fires. Oil and petroleum products can burn in tanks, and during spills. In case of fire, explosions, boiling of combustible substances, their emissions can occur. Extinguishing of these fires is carried out in two stages. During the first stage, the wellhead is cleared within a radius of 50 meters, a reserve of water or other means for extinguishing is created, paths to the fire are released, and special equipment is placed. During the second stage, quenching is carried out by means of pulsed installations and devices.
How to extinguish a fire in a room
When a fire in an apartment or a house needs to be dialednumber 01, from the cell phone Beeline and Megaphone - 112, then 1, and MTS - 010. Remove the children, the elderly, then extinguish the fire. Throwing a dense blanket on the fire, then extinguish with water or a fire extinguisher. You can not open windows so that there is no oxygen supply. To breathe in a burning room it is necessary through a wet rag. If clothes burn on a person, then it should be thrown to the ground, covered tightly with a coverlet and abundantly filled with water. Primary foci, fires in buildings are extinguished with the help of hydrants, fire extinguishers. Foam extinguishers are used to extinguish solid and liquid substances.
Fire Prevention Measures
To warn a fire it is necessary, observingfire regulations. In residential areas should not store flammable and flammable liquids, you can not block attics and cellars, on the stairs you can not store furniture, combustible materials. It is necessary to monitor the serviceability of electrical appliances, sockets, switches. It is prohibited to leave unattended electrical appliances unattended, to overload the power grid. Compliance with the rules for the operation of the gas stove must be rigorous. It is necessary to ventilate the room, do not smoke, do not burn matches with a gas leak. The most important thing is not to bring up the fire!