Elements fire combustion Fuel flammables materials properties Heat ignition temperature each materials flammable materials have low ignition temperature Oxygen oxidation gas Chain reaction uncommon, chemically involved. Better understand that naturally the ratio each elements will affect small, big even burn off. Mean one element must be separated each other in order to fire be extinguished
Classification combustible materials
Contains paper, wood, plastics, clothes, animals etc Technical extinguishersmothering, wrapping, insolating, cut off chain reaction combustion elements above Conventional extinguisher bulky wet clothes(sack), sand, mud, soil. Modern Powder,Co2, Foam and many types of extinguisher
Contains Oils,petroleum, parafin, grease etc Technical extinguisher smothering, wrapping Conventional sand, wet sack clothes, soil, mud Modern Extinguisher only foam type extinguisher.
Electrical shortening Technical extinguisher cut off combution chain reaction using modern extinguisher ( Co2,powder,gas) , never use Foam . most important , first turn off electric power connections. Conventional not available caused electric short hazard
Contains flammable metal such as Sodium(Natrium), Magnesium, potassium, Zirconium etc
Technical extinguisher cooling materials until lower than ignition flammable temperature.
Convention wet plant(some like bananas etc), water.
Modern many type which have cooling properties.
Modern extinguisher
Dry Chemical or Powder type
Application Class A, B, C
Properties :
1. Heat rejection, oxidation restriction,non electric conductor
2. Cooling media
extinguishing agent composed of very small particles of chemicals such as, but not limited to, sodium bicarbonate, potassium bicarbonate, urea-based potassium bicarbonate, potassium chloride, or monoammonium phosphate supplemented by special treatment to provide resistance to packing and moisture absorption (caking) as well as to provide proper flow capabilities. Dry chemical does not include dry powders.
Foam type extinguisher
Application class A and B
Properties
1. Smothering flame, fire
2. Long distance spraying 5-7 meter, about 30-90 minutes
Wrapping film fire flamemeans a fluorinated surfactant with a foam stabilizer which is diluted with water to act as a temporary barrier to exclude air from mixing with the fuel vapor by developing an aqueous film on the fuel surface of some hydrocarbons which is capable of suppressing the generation of fuel vapors.
Co2 or Gas type extinguisher
Application class A, B, an C More effective used in room., office, clean, safe. means a colorless, odorless, electrically nonconductive inert gas (chemical formula CO(2)) that is a medium for extinguishing fires by reducing the concentration of oxygen or fuel vapor in the air to the point where combustion is impossible.
What about Water Fire Extinguishers? They're not listed, but from reading I presume they can tackle Class A fires, which are usually the most common types of fire.
Nobody likes to imagine they would be put in an emergency situation and not know what to do. As a training exercise we often imagine in our head the steps we would take or what we need to do to help out. Frequently, in this thought exercise people consider a fire outbreak.
better we prevent avoid be in emergency situation especially fire disaster.. fire extinguisher training may be including teory how , tools, practice to control fire before to be a disaster .. citizen forest etc.. because of i have seen some people confuse how to use fire extinguisher, please imagine how fire can be develop from electric transformer, gas tank,.. thanks some day i ll complete my post,. right now i have not enough time..
4 comments:
What about Water Fire Extinguishers? They're not listed, but from reading I presume they can tackle Class A fires, which are usually the most common types of fire.
thanks martha,
Nobody likes to imagine they would be put in an emergency situation and not know what to do. As a training exercise we often imagine in our head the steps we would take or what we need to do to help out. Frequently, in this thought exercise people consider a fire outbreak.
Fire Extinguisher Training in Las Vegas
better we prevent avoid be in emergency situation especially fire disaster.. fire extinguisher training may be including teory how , tools, practice to control fire before to be a disaster .. citizen forest etc.. because of i have seen some people confuse how to use fire extinguisher, please imagine how fire can be develop from electric transformer, gas tank,.. thanks some day i ll complete my post,. right now i have not enough time..
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