Electrical equipment should not be extinguished in the event of a fire.

Electrical equipment should not be extinguished with water in the event of a fire, and when an electrical appliance fire, the power supply should be cut off first. Water and foam fire extinguishers should never be used to extinguish the fire when the power cannot be cut off, because both water and foam can conduct electricity. Carbon dioxide, dry chemical fire extinguishers or dry sand should be used for extinguishing.

For fire prevention of household appliances, it is necessary to choose safe and qualified electrical products; When installing high-power electrical appliances, the electrician should be responsible for the construction when adding and changing the line, and do not connect it indiscriminately; Families should not use high-power lamps and lanterns for lighting, and common appliances should be kept at a certain distance from combustibles; When household appliances such as TVs and air conditioners are not in use, they should be unplugged and disconnected from the power supply.

In the event of an electrical fire, the main power supply should be quickly cut off and a fire extinguisher should be used to extinguish the fire. In case of emergency, call the fire alarm in time**.

In principle, in order to prevent the occurrence of a short-circuit electric shock hazard, electrical fires cannot be extinguished with water, foam fire extinguishers and gas fire extinguishers with metal nozzles.

But it also depends on the actual situation, if it is confirmed that all electrical equipment has been cut off, and there are only the above-mentioned fire extinguishing facilities around, it can still be used.

In the event of an electrical fire, water cannot be used to extinguish the fire because water conducts electricity.

Electrical equipment should not be extinguished with (b) in the event of a fire.

bWater can cause a wider range of electric shock hazards.

Electrical equipment should not be extinguished with (b) in the event of a fire.

a.Alkyl halides.

b.Water. c.Dry powder.

Choose a C foam fire extinguisher.

Fire extinguishing principle: When extinguishing a fire, a large amount of carbon dioxide and foam can be sprayed, which can adhere to the combustibles, so that the combustibles are isolated from the air to achieve the purpose of extinguishing the fire.

Scope of application: It can be used to extinguish fires caused by the burning of wood, cotton cloth, etc.

1211 fire extinguisher uses the nitrogen pressure installed in the cylinder to spray out the 1211 fire extinguishing agent to extinguish the fire, it belongs to the pressure storage type, 1211 is the code of difluorochloro-bromomethane, the molecular formula is CF2C1BR, it is the most widely produced and used alkyl halide fire extinguishing agent in China, which is bottled in a liquid tank in the cylinder height. 1211 fire extinguishing agent is a liquefied gas with low boiling point, which has the advantages of high fire extinguishing efficiency, low toxicity, low corrosiveness, long-term storage without deterioration, no trace after fire extinguishing, no pollution of the protected object, and good insulation performance.

1211 fire extinguisher is mainly suitable for extinguishing flammable and combustible liquids, gases and live equipment; Extinguishing precision instruments, meters, valuable materials, precious cultural relics, books and archives and other initial disasters; Extinguish the initial disaster of aircraft, ships, vehicles, oil depots, hotels and other places with solid substances.

In the event of a fire in electrical equipment, try to use carbon dioxide fire extinguishers, and other fire extinguishers will damage electrical equipment.

Carbon dioxide fire extinguishers are suitable for extinguishing the initial disaster of flammable liquids and gases, and can also extinguish fires of live equipment.

Carbon dioxide fire extinguishers are often used in laboratories, computer rooms, substations and distribution stations, as well as places with high maintenance requirements for precision electronic instruments, valuable equipment or items.

In the event of an electrical fire, a dry chemical fire extinguisher, water spray, and water mist system can be used to extinguish the fire.

The first disconnect the power supply, you can use fire blankets, dry powder fire extinguishers, 1211 fire extinguishers,

ABC dry powder fire extinguisher, carbon dioxide, heptafluoropropane gas fire extinguishing equipment, common and easy to use is ABC dry powder fire extinguisher.

In the case that it is not certain whether the power supply is cut off, it can be extinguished with dry powder, carbon dioxide, carbon tetrachloride and other fire extinguishing agents.

When a fire occurs in power lines and electrical equipment, leading to nearby combustibles, the method of power-off fire extinguishing should generally be adopted, that is, according to the different conditions of the fire, cut off the power supply in time, and then extinguish the fire.

It should be noted that you must not use water to fight the fire first, because electrical appliances are generally electrified, and the water splashed on it can conduct electricity, and using water to fight the fire may cause people to be electrocuted, and it will not achieve the purpose of fighting the fire, and the loss will be even more serious.

In the event of an electrical fire, water should only be used to extinguish the fire if it is certain that the power supply has been cut off.

In electrical fires, televisions and computers are more dangerous. If televisions and computers catch fire, even if they are turned off and unplugged, their phosphor screens and picture tubes are possible**.

In order to effectively prevent it, the following methods should be followed: when the TV or computer smokes, you should immediately unplug the main power plug, and then cover them with wet carpets or wet quilts, etc., which can effectively prevent the spread of fireworks, and once the **, you can also block the glass fragments of the fluorescent screen.

Be careful not to splash water or use any fire extinguishers on televisions and computers, as a sudden drop in temperature can cause a red-hot CRT to occur immediately**. In addition, televisions and computers still carry residual current, which may cause electric shock when splashed with water. When extinguishing a fire, they should not be approached head-on, and in order to prevent the CRT from injuring people, the TV or computer should only be approached from the side or back.

CO2 fire extinguisher:

Scope of use: It is suitable for extinguishing initial fires of oil, flammable liquids, combustible gases, electrical appliances and mechanical equipment.

Operation: The hand-held type is carried by hand or shoulder, and cannot be reversed or lying horizontally. Select the upwind direction, put down 5 meters away from the burning place, pull out the safety, hold the opening and closing pressure handle in one hand, and aim the handle of the soft spray horn at the burning place to spray the flame from near to far.

The use of a trolley should be operated by two people, and the fire should be extinguished about 10 meters away from the combustible.

Note: Hands should not grasp the outer wall of the bell or the metal continuous tube to prevent frostbite on the hands. Do not directly impact the flammable liquid level. After extinguishing the fire, evacuate quickly to prevent suffocation.

Maintenance: regular inspection, professional checking.

In addition, the 1211 fire extinguisher has been scrapped and stopped production in accordance with relevant national regulations.

Foam fire extinguishers should not be used for electrical fires.

Foam fire extinguisher principle: a large amount of carbon dioxide and foam can be sprayed when extinguishing the fire, and they can adhere to the combustibles, so that the combustibles are isolated from the air to achieve the purpose of extinguishing the fire.

Foam fire extinguisher scope of application: It can be used to extinguish fires caused by the burning of wood, cotton cloth, etc.

Foam fire extinguishers should not be used.

Foam fire extinguishers contain water, and the chemical reaction that occurs in foam fire extinguishers is carried out in an aqueous solution! (Sodium sulfate is a strong electrolyte, which strengthens the conductivity of aqueous solution) The conductivity of water determines that foam fire extinguishers should not be used!

The fire extinguisher that is not easy to use when extinguishing an electrical fire is the foam fire extinguisher and water.

Water fire extinguishing equipment cannot be used, and dry chemical fire extinguishers are generally used.

Foam fire extinguishers cannot be used for electrical fires.

Water foam fire extinguisher.

The power should be cut off first.

Do not use fire extinguishing equipment with conductive properties.

First cut off the power supply and cover it with a blanket, preferably without pouring it with water.

Single choice answer: c. Cut off the power supply.

This topic is really boring, first cut off the power.

Fire extinguishing equipment that can be used in the event of an electrical fire includes dry chemical fire extinguishers and carbon dioxide fire extinguishers.

The specific methods of isolation and extinguishing are as follows:

1. Remove combustible, flammable, explosive and combustible materials near the fire source;

2. Close the valves of combustible gas and liquid pipelines to reduce and prevent combustible substances from entering the combustion zone;

3. Try to block the flow of flammable and combustible liquids;

4. Demolish flammable buildings adjacent to the fire source to form a space to prevent the spread of fire.

A fire extinguisher is a portable fire extinguishing tool. Chemicals are placed inside the fire extinguisher to extinguish the fire. Fire extinguishers are one of the common fire prevention facilities, stored in public places or places where fires may occur, different types of fire extinguishers are filled with different ingredients, and are specially designed for different fire causes.

Care must be taken when using it to avoid counter-effects and dangers.

Legal basis

Fire Protection Law of the People's Republic of China

Article 45 Fire and rescue agencies shall give priority to ensuring the safety of the lives of persons in distress by uniformly organizing and directing fire fighting at the scene.

The commander-in-chief of the fire scene has the right to decide on the following matters according to the needs of fighting the fire:

a) the use of various water sources;

2) Cutting off the transmission of electricity, combustible gases and combustible liquids, and restricting the use of fire and electricity;

3) Demarcate warning areas and implement local traffic control;

4) the use of adjacent buildings and related facilities;

5) Demolishing or damaging buildings, structures, or facilities adjacent to the fire scene in order to rescue personnel and important materials and prevent the spread of fire;

6) Mobilize relevant units such as water supply, power supply, gas supply, communications, medical aid, transportation, and environmental protection to assist in fire fighting and rescue.

According to the urgent needs of fighting fires, the local people concerned shall organize personnel and mobilize the necessary materials to support the firefighting. Article 44 Any person who discovers a fire shall immediately report it to the police. All units and individuals shall facilitate the reporting of the police free of charge, and must not obstruct the reporting of the police.

It is strictly forbidden to make false reports of fire alarms.

In the event of a fire in a densely populated place, the on-site staff of the site shall immediately organize and guide the evacuation of the personnel present.

In the event of a fire in any unit, forces must be immediately organized to extinguish it. Neighboring units shall provide support.

When the fire brigade receives a fire alarm, it must immediately rush to the fire scene to rescue the people in distress, eliminate the danger and extinguish the fire.

In the event of a fire in electrical equipment, if you want to use live fire extinguishing equipment, you need to pay attention to safety and avoid electric shock or discharge. Here are some possible live fire extinguishers silver slip cavities:

1.CO2 fire extinguisher: CO2 fire extinguisher can extinguish live equipment without leaving residual material and will not cause secondary fire, but the fire extinguishing range is small.

2.Dry chemical fire extinguisher: Dry chemical fire extinguisher can extinguish live equipment and has a strong fire extinguishing ability, but it will produce dust to cause damage to the equipment.

3.Low-pressure water cannon: In the case of ensuring the safety of the front shirt, a low-pressure water cannon can be used to spray water mist to extinguish the fire.

When using live fire extinguishing equipment, you need to pay attention to the following:

1.Before extinguishing the fire, the power supply should be cut off as much as possible to reduce the risk of electric shock and discharge when the fire is extinguished.

2.The carrying and use of fire extinguishing equipment should be determined according to factors such as the voltage level of the specific equipment, the nature of the fire extinguishing agent and the fire extinguishing place.

3.When extinguishing a live fire, you need to wear safety equipment such as insulated gloves and protective masks to ensure your own safety.

To extinguish electrical fires, the first choice is to use a dry chemical fire extinguisher.

To extinguish electrical fires, the first choice is to use a dry chemical fire extinguisher, which is the best safety. This is followed by carbon dioxide fire extinguishers, 1211 fire extinguishers and other fire extinguishers. Never use a foam fire extinguisher.

The dry powder does not burn, does not form a conductive medium, and has no corrosive effect, making it very effective against electrical fires. On the contrary, foam fire extinguishers have conductive fire extinguishing liquid, and they will strongly corrode electrical equipment, and they are not easy to clean afterwards, so they are not suitable for electrical fires. If the incident is sudden, you can't find a non-conductive dry powder or carbon dioxide fire extinguisher for a while, you can also use a "stupid method" such as dry sand cover to extinguish the fire, don't splash water, water can conduct electricity, which may cause a short circuit or electrocution, leading to worse results.

There are many types of fire extinguishers, and the more common fire extinguishers on the market are foam fire extinguishers, dry powder fire extinguishers, carbon dioxide fire extinguishers and halide fire extinguishers (1211) and so on.

In the event of a fire in electrical equipment, the power should be turned off immediately and a carbon dioxide, carbon tetrachloride or dry chemical fire extinguisher should be used to extinguish the fire. It is also possible to extinguish the fire with sand, dry dirt, etc. Remember, do not use water to extinguish fires, because water conducts electricity and can easily be electrocuted and injure people.

Once the flames are found to have jumped to the ceiling and the fire is difficult to control, the people trapped in it should be calm, stop fighting, evacuate quickly and evacuate the danger, and immediately report the fire.