How do you extinguish fires?
This involves the elimination of one side of the fire triangle.
Starvation - remove the fuel, e.g. turn off the gas supply, drag burning pallets away from the fire.
Smothering - remove the oxygen supply or adding inert gas (without oxygen) to the burning mixture, e.g. fire blanket onto a pan, or using a foam extinguisher. Main risk is that the fire may reignite when foam (wet chemical used for fat fryers) or blanket is removed as heat will still be present.
Carbon dioxide is commonly used in extinguishers and nitrogen is used in the petrochemical industry. Smothering is only effective when the source of oxygen is air. It is ineffective when the substance that is burning contains oxygen.
Cooling - commonest, cheapest and most effective method. For example,water sprayed onto a fire, will cause the temperature to be lowered. The steam produced acts as a blanket to smother reducing the potential for further ignition. Dry powder extinguishers rapidly absorb the heat and also smother.
Safety Courses in Chennai | Nebosh Courses in Chennai | International Diploma in OSH
Contact: +91 90258 02211 | info@poshesolutions.com
This involves the elimination of one side of the fire triangle.
Starvation - remove the fuel, e.g. turn off the gas supply, drag burning pallets away from the fire.
Smothering - remove the oxygen supply or adding inert gas (without oxygen) to the burning mixture, e.g. fire blanket onto a pan, or using a foam extinguisher. Main risk is that the fire may reignite when foam (wet chemical used for fat fryers) or blanket is removed as heat will still be present.
Carbon dioxide is commonly used in extinguishers and nitrogen is used in the petrochemical industry. Smothering is only effective when the source of oxygen is air. It is ineffective when the substance that is burning contains oxygen.
Cooling - commonest, cheapest and most effective method. For example,water sprayed onto a fire, will cause the temperature to be lowered. The steam produced acts as a blanket to smother reducing the potential for further ignition. Dry powder extinguishers rapidly absorb the heat and also smother.
Safety Courses in Chennai | Nebosh Courses in Chennai | International Diploma in OSH
Contact: +91 90258 02211 | info@poshesolutions.com
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