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safety and occupational health : Fires "classification- causes- risks"

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Fires "classification- causes- risks"


  Fires classification 


Category talk agreed by the European countries is divided into four types of fires are
 Type I fires CLASS (A) FIRES
Namely that arise in solids that are often of the nature of the organic (carbon compounds) such as paper, wood, fabrics and other plant fibers, usually burn up in the form of Jmrat glowing, characterized by that the majority of these materials porosity and easy for her to absorb the water, affecting the cooling of the inside of that Water is the most appropriate means to extinguish such fires.


 Type II fires CLASS (B) FIRES

It fires that occur with fluid or magma and flammable materials in order to determine the most appropriate to extinguish these fires can be divided flammable liquids of any two types: -
- Liquids are soluble in water or mixing.
- Liquids are not soluble with water.
In light of this mediator can determine the quality of firefighter (Article firefighters) and include appropriate water or foam spray or fumes halogens or carbon dioxide or dry chemical powder.


The third type fires CLASS (C) FIRES

It fires, flammable gases, including liquefied petroleum gases and that Kalpr Albiotat and used foam and dry chemical powder to face the fires of gases in a liquid state when released on the ground and water sprinklers are also used for the purposes of cooling gas canisters.


 The fourth type fires CLASS (D) FIRES

A fire occurring minerals, and do not use water to ineffective and that their use has a risk, as well as when to use carbon dioxide or powder chemical dry bicarbonate, and is commonly used graphite powder or talcum powder or dry sand or other types of powders chemical dry to put thistype of fires.



 the causes of fires

Of the most important reasons that lead to the occurrence of fires, especially in the industrial sites as follows: -


  ignorance and indifference, neglect and vandalism.-
  the bad and the storage of dangerous materials, flammable or explosive.-
  saturation of the workplace Balabkhrh dust, gases and flammable in the presence of poor ventilation.-
 a spark or an abnormal rise in temperature as a result of friction in mechanical parts. -
  electrical faults or the presence of easy ignition near epidemic of EE devices used for heating.-
  set fire to the absurd and dangerous places near or in good faith or discarded cigarettes.-
 leave trash and waste flammable area of ​​manufacturing, which ignites the existence of self-heat. -
  the presence of liquid waste and flammable oils on the manufacturing floor.-

 risk of fire

 personal risk (the risk to individuals)
 It risks that endanger the lives of individuals for injuries, which requires the provision of measures to survive the dangers in the event of fire.

 hazard destructive
 Meant danger destructive is what happens from the destruction of buildings and facilities as a result of fire and vary the intensity of such destruction according Version Email the building itself from a potentially spread, danger resulting in the building allocated to the storage not be expected in the case of buildings used as offices or housing, in addition to the buildings dedicated for a particular purpose different degree of influence of the fire as a result of many factors including the type of material in them and the usability of combustion and distribution in the way inside the building as well as economic value. All this means that the quantity and nature of the building components that control the severity of the fire, continuation and destructive effect which produces it.

risk to the neighborhood 

 It risks that threaten the sites near the fire place so-called external threat, is not required to have a direct connection between the fire and the building at risk. This is dangerous and usually arise as a result of the vulnerability of combustible materials that make up or that it contains the building to heat and flame of fire outside. So When planning for the establishment of a petrol station, it is pasture when it is established to be in the area is residential, shall be the residential buildings within a certain distance where it is supposed exposure of these buildings at great risk in the event that what happened a fire in this station and this is the so-called risk Altarda.


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