Types of fires and applicable fire extinguishers
oneTypes of fires and applicable fire extinguishers
ZHANG GongsaidSafety
The most common type of engineering project is dry powder fire extinguisher, which is generally divided into ABC dry powder fire extinguisher and BC dry powder fire extinguisher. BC dry powder, you can kill class B and class C. ABC dry powder, you can kill class A, class B and class C. Both are powered by nitrogen or carbon dioxide gas, but the extinguishing agent used is different. Sodium bicarbonate (potassium) as the base material of dry powder, used to extinguish the fire of flammable liquids, gases and live equipment, i.e. BC fire extinguishers; Dry powder based on triammonium phosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate and their mixtures is used to extinguish fires of combustible solids, combustible liquids, combustible gases and live equipment, i.e., ABC fire extinguishers; There are also BCD dry chemical fire extinguishers.
Special attention should be paid to the fact that dry chemical fire extinguishers cannot be used for light metal fires, and dry chemical fire extinguishers will react with light metals to produce hydrogen when extinguishing light metals. It should also be noted that, generally speaking, portable dry powder fire extinguishers are used to extinguish the first disaster, that is to say, small fires can be extinguished, and a slightly larger fire will not work.
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