November 30, 2021
Fire is the uncontrolled spread of fire in space, causing material damage, and often taking human lives.
Fires are one of the main causes of forest destruction. There are many examples, and one of the most drastic is the fire in Wisconsin and Michigan (USA), which happened in 1871, when it destroyed 1.8 million hectares of forest and took 2,200 lives. In Siberia, in 1915, a fire destroyed a million km of forest. The soot that covered the sky prevented the penetration of the sun's rays and the temperature dropped by several degrees. There are also plant species that are resistant to fire. Such is the case with eucalyptus. Namely, even when it burns in a fire, eucalyptus is regenerated. According to scientists, this is due to a special tissue that regenerates lost parts and is located in the deeper layers of the tree of this plant (while in other species such as oak, this tissue is close to the bark).
Use of non-combustible or self-extinguishing materials.
Equipping the premises with sensors that react to elevated temperatures with the use of devices that spray water or otherwise prevent fire.
Provision of fire roads.
Marking locations where the use of open flames or sparking tools (eg mines) is prohibited
Presence of trained firefighters with equipment in places where something is being done and there is an immediate danger of fire (eg welding in a place that is endangered by fire)
Installation of fire extinguishers
Ways to put out fires
In order for a fire to start at all, three elements are needed:
fuel - a material that burns
ignition temperature of the burning material
oxygen By eliminating one of these three elements, the fire is extinguished.
These are substances that interrupt the combustion process. They are required to meet some general conditions:
that their use is simple,
to put out as many fires of different substances as possible,
that they are harmless and do not combine with other substances,
to extinguish efficiently,
that they are durable during storage and that they are cheap, ie economical. Division according to the physical state:
solid (sand, earth, dust),
liquid (water, foam),
gaseous: (carbon dioxide, halons). Division according to the mode of action on the fuel: