What fire extinguisher is used to extinguish a computer fire

The dry powder fire extinguisher is equipped with dry powder fire extinguishing agent such as ammonium phosphate salt. This dry powder fire extinguishing agent is easy to flow and dry. It consists of inorganic salts and crushed and dried additives, which can effectively save the first fire.

Carbon dioxide gas can exclude the air and surround the surface of the burning object or be distributed in a closed space, reduce the oxygen concentration around the combustibles or in the protective space, produce suffocation and extinguish the fire.

In addition, when carbon dioxide is ejected from the storage container, the liquid will quickly vaporize and become a gas, and absorb part of the heat from the surroundings to play a cooling role.







1. Dry powder fire extinguisher for computer fire.



2. There are many types of fire extinguishers, which can be divided into portable type and cart type according to their movement mode; according to the power source of driving fire extinguishing agent, they can be divided into: gas cylinder type, pressure storage type, chemical reaction type, according to the filling The fire extinguishing agent can be divided into: foam, dry powder, halogenated alkanes, carbon dioxide, clean water, etc.

3. How to use

a, dry powder

Scope of application: Sodium bicarbonate dry powder fire extinguishers are suitable for flammable, combustible liquids, gases and live fires of live equipment; in addition to the above-mentioned types of fire, ammonium phosphate dry powder fire extinguishers can also be used to extinguish solid fires. But neither can put out a metal burning fire.

b, foam

Scope of application: It is suitable for extinguishing general B-type fires, such as oil products, grease and other fires, but also for A-type fires, but not for water-soluble combustible and flammable liquids in B-type fires, such as alcohol, e799bee5baa6e58685e5aeb931333365646332 ester , Ether, ketone and other material fires; nor can it extinguish live equipment and Class C and D fires.

c. Carbon dioxide

Scope of application: Carbon dioxide fire extinguishers are mainly used to extinguish the first fire of valuable equipment, archives, instruments, electrical equipment below 600 volts and oil. In use, the fire extinguisher should first be raised to the place of fire, put down the fire extinguisher, pull out the safety pin, hold the handle at the root of the trumpet with one hand, and hold the pressure lever of the on-off valve firmly with the other hand. For carbon dioxide fire extinguishers without jet hoses, the trumpet should be turned up 70-90 degrees. When in use, do not directly grasp the outer wall of the horn or the metal connection tube with your hands to prevent frostbite. When using a carbon dioxide fire extinguisher, use it outdoors in the upwind direction; if it is used in a small indoor space, the operator should quickly leave after extinguishing to prevent suffocation.





For general electrical fires, it is recommended to use dry powder fire extinguishers.

In the case of precision instruments and server host types, it is recommended to cut off the power first and then use a carbon dioxide fire extinguisher to put out the fire.



What kind of fire extinguisher should be used in case of electrical fire? When electrical equipment is in operation, it must be cut off before extinguishing. If the power cannot be cut off quickly, use fire extinguishers such as carbon dioxide, carbon tetrachloride, 1211 fire extinguisher or dry powder fire extinguisher. Never use water to extinguish the fire



According to GB 501402005 'Code for Design of Configuration of Fire Extinguishers in Buildings', electrical fires belong to the selection of Class E fires and Class E fire extinguishers: Class E fire sites should choose ammonium phosphate dry powder fire extinguishers, sodium bicarbonate dry powder fire extinguishers, halogenated alkyl fire extinguishers or carbon dioxide fire extinguishers. However, carbon dioxide fire extinguishers equipped with metal horn nozzles are not allowed.

Reasons: The dry powder fire extinguisher uses carbon dioxide gas or nitrogen gas as the power to spray the dry powder in the cylinder to extinguish the fire. Dry powder is a dry, easy-to-flow fine solid powder composed of a base material capable of extinguishing fire, a moisture-proof agent, a flow accelerator, a caking preventive agent and other additives. The main question is to be used to extinguish the initial fire of flammable liquids, combustible gases and electrical equipment such as petroleum and organic solvents.

Remember not to use a foam fire extinguisher or use water to extinguish, the components inside the appliance are very hot when they are burned, or they may explode if they are used with water, or there is a danger of electric shock.

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