What are the commonly used fire extinguishers? What are the principles of fire fighting?
Cooling methodSpray the extinguishing agent directly onto the fuel to reduce the temperature of the burning material to the point of fire and to stop burning
Interrupted chemical reaction methodThe extinguishing agent is involved in the combustion process, so that the free radicals generated by the combustion process disappear and form a stable molecule or active free radical, so that the combustion chemical reaction is interrupted
AsphyxiaPrevent air from flowing into the combustion zone or diluting the air with non combustible substances to extinguish the combustion material without sufficient oxygen
Isolation methodEvacuate or separate combustible material from and around the fire source so that the combustion is stopped because of the separation of fuel
