Should the power supply be cut off first when a household appliance catches fire?

There are many situations in which fires occur, and these fires can be caused by various reasons, including household appliances catching fire. However, many people do not know how to deal with this situation, which will lead to many consequences. They don’t know whether they should cut off the power supply. So, should the power supply be cut off first when a household appliance catches fire?

Electrical fires: As the temperature rises sharply, people use air conditioners, fans, refrigerators and other electrical equipment to prevent heatstroke and cool down. The line load increases accordingly, and coupled with the aging of the lines and other reasons, electrical fires are prone to occur. It is more likely to happen in summer.

Fire prevention when using electricity (1) Do not buy fake or inferior household products that do not meet the "three requirements".

(2) When using household appliances, the power cord plug should be complete and reliable. Grounding protection must be used for household appliances with metal casings.

(3) Switches and fuses cannot be installed on the ground wire or neutral wire. It is prohibited to connect the grounding wire to the tap water or gas pipeline.

(4) Do not touch live equipment with wet hands or wipe live equipment with a wet cloth. Do not overload electrical equipment.

(5) Do not pull or connect wires privately or move live equipment at will.

(6) When inspecting or repairing household appliances, the power supply must be disconnected first. When household appliances are damaged, please ask professionals to repair them or send them to a repair shop for repair; non-professionals are strictly prohibited from opening the casing of household appliances when they are powered on.

(7) When the power cord of a household appliance is damaged, it must be replaced immediately or wrapped with insulating cloth.

(8) If a fire occurs in household appliances or electrical wires, the power supply should be disconnected before extinguishing the fire.

Preventive measures: Avoid privately pulling and randomly connecting electrical lines, arbitrarily increasing line loads, and installing electrical equipment not in accordance with standards;

Second, avoid not replacing electrical circuits in time after aging or not reconnecting wire connectors that are oxidized, loose, or oily;

Third, avoid not unplugging electrical appliances when they are in use or when there is a power outage;

Fourth, avoid using steel, iron, aluminum wire, etc. to replace fuses or using fuses beyond the standard;

Fifth, avoid laying electrical circuits without pipe protection or along combustible or flammable materials.

Fire-fighting measures: When a fire occurs in power lines or electrical equipment and ignites nearby combustible materials, the method of cutting off power supply should generally be adopted to extinguish the fire. That is, according to the different conditions of the fire, the power supply should be cut off in time, and then the fire should be put out. Be careful not to use water to put out the fire first, because electrical appliances are generally electrified, and the water poured on them is conductive. Using water to put out the fire may cause electric shock to people, and it will not achieve the purpose of putting out the fire, and the losses will be even greater. In the event of an electrical fire, water can only be used to extinguish the fire when it is certain that the power supply has been cut off. If you are not sure whether the power is cut off, you can use dry powder, carbon dioxide, carbon tetrachloride and other fire extinguishing agents to put out the fire.

Among electrical appliance fires, televisions and computers are the most dangerous. If a television or computer catches fire, its screen and picture tube may explode even if it is turned off and unplugged. In order to effectively prevent explosions, you should follow the following methods: When a TV or computer starts to smoke or catch fire, you should immediately unplug the main power plug and cover them with wet carpets or wet quilts. This will effectively prevent the spread of fireworks and fire, and in the event of an explosion, it will also block the glass fragments of the fluorescent screen. Be careful not to pour water on the TV or computer or use any fire extinguisher, because the sudden drop in temperature can cause the hot picture tube to explode immediately. In addition, there is still residual current in the TV and computer, and splashing water may cause electric shock. When putting out a fire, you cannot approach them head-on. To prevent the cathode ray tube from exploding and injuring people, you can only approach the TV or computer from the side or back.

First aid measures for electric shock

When an electric shock accident occurs, while ensuring the safety of the rescuer himself, he must first try to quickly disconnect the person from the power source, and then carry out the following emergency repair work.

(1) Loosen any tight clothing that may hinder the victim’s breathing.

(2) Check the oral cavity of the person who has been electrocuted, clean the oral mucus, and remove any dentures.

(3) Provide first aid immediately on the spot. If breathing stops, use mouth-to-mouth artificial respiration. If the heart stops beating or beats irregularly, perform artificial chest compression. It must not be interrupted without reason.

(4) Call the emergency number 120 immediately and do not stop the rescue while waiting.