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As we all know, due to the different properties of hazardous materials, special attention must be paid to the methods of extinguishing fires, and appropriate approaches must be used. But in real life, when a fire breaks out, our first instinct is to use water to put it out; actually, this idea is incorrect. In the face of a sudden fire, one should remain calm, analyze the type of fire, and extinguish it accordingly. Let’s find out more about it together with Vivi. 1、Clarifications on electrical fires: In the event of an electrical fire, it is absolutely forbidden to use water or foam to extinguish it if it is not possible to cut off the power supply, as both water and foam are conductive. To extinguish the fire, carbon dioxide, dry powder fire extinguishers, or dry sand should be used, and a distance of more than 2 meters must be maintained from electrical equipment and wires. http://p9.itc.cn/images01/20201029/388e123a28914a83bdeddfc471bba1ed.jpeg 2. Answers to questions about fires in oil pans: When an oil pan catches fire, it is absolutely forbidden to use water to put out the fire. Because when water meets hot oil, it causes a \"boiling over\" phenomenon, causing the oil and flames to splash everywhere. To put out the fire, quickly pour the chopped cold dishes along the edges into the pot, and the fire will go out on its own. Another method is to cover the burning oil pan with a lid or a large piece of damp cloth that can cover it, preventing the burning oil from coming into contact with air and thus suffocating due to lack of oxygen. 3、Clarifications on gasoline fires: Gasoline has a lower density than water. If water is used to extinguish a gasoline fire, the denser water sinks while the lighter gasoline floats on the surface. The gasoline remaining on the surface will continue to burn, and it can spread along with the water, expanding the area of the fire and posing a threat to the safety of other goods and surrounding buildings. In the event of a gasoline fire, foam, carbon dioxide, and dry powder fire extinguishers should be used immediately to put out the fire; it is strictly prohibited to use water. 4、Clarifications on paint fires: Under no circumstances should water be used to extinguish a paint fire. Paint contains a large amount of organic solvents, which are lighter than water; spraying water on burning paint is not only ineffective but can also cause the fire to spread. To extinguish it, use foam, dry powder or 1211 fire extinguishers, or sand. 5、Clarifications on fires involving high-voltage electrical equipment: In the absence of proper grounding facilities or power disconnection, it is generally not possible to use water to extinguish such fires. First, water is conductive, which can easily cause electrical equipment to short-circuit and burn out ； Secondly, high-voltage current can easily flow along the water column to the firefighting equipment, causing firefighters to come into contact with electricity and suffer injuries or death. To extinguish such fires, professional firefighters are required to cut off the power supply first and then put on the appropriate protective equipment before attempting to put out the fire. 6. Clarifications on fires involving sulfuric acid, nitric acid, and hydrochloric acid: Such fires should not be extinguished using a strong water stream, as the acid, when exposed to water, can splash and cause injury; moreover, when the acid comes into contact with flammable materials, it may lead to combustion. If necessary, spray water can be used to extinguish the fire. http://p0.itc.cn/images01/20201029/0ff0b3f89ecd40da98d2779c53fa2c7f.jpeg These are the various methods for fighting fires. Have you remembered them? In the face of potential fires in daily life, it is essential to respond calmly and handle the situation properly to prevent the fire from spreading. The main content of this article is taken from the Ministry of Emergency Management.