Fires that cannot be extinguished with water: electrical fires, grease fires, chemical fires.
1. Electrical fire: Electrical fire is a fire caused by electrical equipment failure, wire short circuit and other reasons. In this case, using water to extinguish the fire may cause electrical current to be conducted, increasing the risk of electric shock. Therefore, when extinguishing an electrical fire, you should first turn off the power supply, and then use equipment such as carbon dioxide fire extinguishers and dry powder fire extinguishers to extinguish the fire.
2. Grease Fires: Grease fires mainly occur in kitchens, restaurants and other places and are caused by the burning of grease at high temperatures. Grease fires spread quickly and produce large flames. The use of water for summerInducing fire can cause grease to float on water, causing the fire to expand. In this case, foam extinguishers, dry powder extinguishers and other equipment can be used to extinguish the fire.
3. Chemical Fires: Chemical fires are fires caused by the escape and volatilization of chemicals. Different types of chemicals have different properties, and some chemicals react violently with water, releasing large amounts of heat and toxic gases. Therefore, when extinguishing chemical fires, appropriate extinguishing agents should be selected, such as solvent-resistant foam extinguishers, dry powder extinguishers, etc.
Precautions for using fire extinguishers
1. Safety First: Before putting out a fire, you must first ensure your own safety. If the fire is tooImportantly, evacuate the area immediately and call the fire alarm for help. Do not risk entering the scene of a fire to avoid casualties.
2. Understand the fire situation: Before extinguishing the fire, it is necessary to make a comprehensive observation of the fire scene and understand the scale of the fire, the location of the fire source. fire and burning materials. and other information. This helps in selecting appropriate fire fighting methods and equipment.
3. Use appropriate fire extinguishing equipment: According to the fire situation, choose appropriate fire extinguishing equipment, such as water, foam extinguisher, dry powder extinguisher, carbon dioxide fire extinguisher, etc. Different types of fires require the use of different types of fire extinguishing equipment.
4. Correct operation of the equipmentFire extinguishing equipment: When using fire extinguishing equipment, ensure its proper operation. For example, when using a fire extinguisher, face into the wind, spray at the root of the fire source, and make sure the extinguishing agent covers the entire fire source.
How to save a fire in a household appliance and what to use to put it out. Why not use water. Most homes do not have fire blankets or fire extinguishers.
When household appliances catch fire, do not use water to extinguish the fire.
When a fire breaks out in power lines or electrical equipment and ignites nearby combustibles, the power cut method should generally be adopted to extinguish the fire, i.e. that is to say according to different conditions. At the fire scene, the power supplye must be cut on time and then saved.
Be careful not to use water to put out the fire first, as electrical appliances are usually charged and water poured on them is conductive. Using water to extinguish fire may cause electric shock. is not enough to put out the fire, the losses will be even more serious.
In the event of an electrical fire, only ensure that the electrical power is supplied. Only when the fire is extinguished can water be used to extinguish the fire. If it is uncertain whether the electrical power has been interrupted, dry powder, carbon dioxide, carbon tetrachloride and other extinguishing agents may be used to extinguish the fire.
Preventive measures:
1. Avoid connecting power lines without permission, increasing line loads at will, and installing substandard electrical equipment.
2. Avoid failing to replace electrical circuits in time after aging or failing to reconnect wire connectors in time due to oxidation, loosening or oil pollution.
3. Avoid using electrical appliances or unplugging them during a power outage.
4. Do not use steel wire, iron wire, aluminum wire, etc. instead of fuses and do not use fuses beyond the standard.
5. Avoid laying electrical circuits without conduit protection or laying them alongside combustible or combustible materials.
Reference for the content above? Baidu Encyclopedia - Electric Fires
If you use water to extinguish the fire directly, the water will be electrolyzed to generate hydrogen and water when it comes into contact with electricity, which will accelerate combustion, so it is not recommended Use water directly to extinguish the fire.To extinguish a fire, first turn off the power supply (if possible), then cover the fire spot with a quilt (if the power supply is off, you can wet one side of the quilt to reduce the temperature of the fire source) and reduce the area of the fire source that comes into contact with the air. If the fire is too big, leave the room immediately, call 119 and ask others for help.