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Fire prevention techniques

Release date:2023-01-12 Click:28

Fire extinguishing knowledge:

1. If a fire is detected, quickly dial the fire alarm number 119. When reporting an alarm, it is necessary to clearly state the detailed address, the location of the fire, the substance on fire, the size of the fire, the name and phone number of the caller, and send someone to the intersection to greet the fire truck.

2. When a gas tank catches fire, cover it with damp bedding, clothing, etc. to extinguish the fire, and quickly close the valve.

3. When a household appliance or circuit catches fire, the power should be cut off first, and then a dry powder or gas fire extinguisher should be used to extinguish the fire. Water should not be directly splashed to prevent electric shock or electrical explosion that may harm people.

4. Do not open doors and windows rashly when firefighting to avoid air convection and accelerate the spread of the fire.

Instructions for using dry powder fire extinguishers:

1. Before use, shake the fire extinguisher several times to loosen the dry powder inside the bottle;

2. Pull out the safety pin, align it with the root of the flame, and press down the pressure handle to spray;

3. During the firefighting process, it is necessary to always maintain an upright position and not use it horizontally or upside down;

4. Prevent reignition after extinguishing the fire.

Dry powder fire extinguisher:

When using a fire dry powder fire extinguisher, first remove the safety pin, hold the nozzle with one hand and the pressure handle with the other hand, and the dry powder can be sprayed out.

Attention:

1. Dry powder fire extinguishers belong to suffocation fire extinguishing and are generally suitable for solid, liquid, and electrical fires.

2. Carbon dioxide fire extinguishers, 1211 fire extinguishers belong to cooling fire extinguishing and are generally suitable for fires in books, archives, and precision instruments.

When using carbon dioxide fire extinguishers, be sure to pay attention to safety measures. Because the carbon dioxide content in the air reaches 8. At 5%, it can cause an increase in blood pressure and difficulty breathing; When the content reaches 20%, people will experience respiratory weakness, and in severe cases, they may suffocate and die. So, after using in narrow spaces, it is important to evacuate quickly or wear a respirator. Secondly, be careful not to use against the wind. Due to the short spraying distance of carbon dioxide fire extinguishers, using them against the wind can quickly disperse the extinguishing agent and affect the extinguishing process. In addition, carbon dioxide is quickly expelled after being sprayed out and absorbs a large amount of heat from the surrounding air, thus preventing frostbite during use.