What to use to extinguish the fire when the wire catches, and what fire extinguisher to use when the

1. What to use to extinguish the fire when the wire catches fire.

1. Once the wire catches fire, we need to turn the electric switch at home.

Close, this is the most important and the right way to do it. If you have a fire extinguisher in your home, use a dry powder fire extinguisher.

to extinguish the fire. The dry powder sprayed by the dry chemical fire extinguisher can cover the surface of the fire source, so that the oxygen can be isolated, and then the fire source can be extinguished. But keep in mind that not all fire extinguishers, such as foam fire extinguishers, are suitable.

No, because there is a lot of moisture in the foam fire extinguisher, if the foam fire extinguisher is used to extinguish the fire of the wire, it is easy to have an electric shock, which will lead to personnel**.

2. If there is no fire extinguisher around, we can cover the flame with a towel or clothes, of course, the clothes should not be wet, and dry clothes can be used.

3. If there is no electricity in the wire, we can also use water to extinguish the fire at this time. Wet your clothes and cover them over the fire to keep the air out.

4. You can also use sand or soil to directly cover the wire, which can also extinguish the fire.

2. How to prevent wires from catching fire.

1. When using electrical appliances, it is necessary to avoid the failure of some electrical appliances, and the choice of electrical appliances is also very important, if it is some unqualified electrical products, you must not only try to be cheap, and it may cause fire and the risk of electric shock when you use it later, we should choose a good quality business.

2. Some people like to use universal sockets, although this kind of socket is relatively simple to use, if the load is relatively large, it is easy to overheat, which will lead to fire.

3. Be sure to wire correctly, if not, you can ask a professional electrician to help you, because indiscriminately connecting wires may lead to a short circuit, which can cause a fire.

4. It is necessary to install an air switch at home.

or leakage protectors.

It can also effectively prevent electric shock or fire.

If the power line of the distribution cabinet catches fire, it needs to be extinguished immediately with a dry chemical fire extinguisher, and it is strictly forbidden to use a foam fire extinguisher before the power is cut off. In order to prevent the distribution cabinet from catching fire, it is necessary to have a professional person in charge to check whether the components are in good condition and whether there is heating, so as to better avoid it.

Second, how to maintain the distribution box.

1. After the distribution box is used for a long time, it will be covered with a lot of dust and stains on its surface, if it is accumulated too much, the later use will be limited to a certain extent, and it will become very difficult to clean it again. And for the wire joints inside the distribution box, it must be firm to prevent the trouble of leakage.

2. For the switch inside the distribution box, it is necessary to check it frequently to see if it can be switched normally, if there is a problem, it should be replaced immediately, so as not to find that it cannot be used in the later emergency, which is very troublesome. Moreover, the location of the distribution box should be kept away from the rain as much as possible, otherwise there will be safety problems once it is flooded.

3. If the power cord in the distribution box is heated, it is necessary to detect it in time, find the specific cause and repair it. If there is a supporting exhaust fan inside the distribution box, it is also necessary to regularly check whether the exhaust fan can operate normally to reduce the risk factor to the minimum.

In case of wire fire, a dry chemical fire extinguisher or carbon dioxide fire extinguisher should be used.

Dry powder is a dry, easy-to-flow fine solid powder, composed of a base material that can extinguish fires and additives such as moisture-proof agents, flow accelerators, and anti-caking agents. It is mainly used to extinguish the initial fire of flammable liquids such as petroleum and organic solvents, combustible gases and electrical equipment.

The most commonly used opening method for dry chemical fire extinguishers is the pressure handle method. After lifting the fire extinguisher to the appropriate position from the fire source, first turn it upside down several times to loosen the dry powder in the cylinder, and then let the nozzle be aimed at the most violent burning, pull out the safety pin, press down the pressure handle, and the fire extinguishing agent will be sprayed out to extinguish the fire. When turning on the dry powder fire extinguisher, hold the middle of the fire with your left hand, aim the nozzle at the root of the flame, pull out the safety card with your right hand, rotate the opening knob, open the gas storage cylinder, and wait for 1-4 seconds, and the dry powder will spray out to extinguish the fire.

If a battery catches fire, water can be used to extinguish the fire.

Compared with dry powder fire extinguishers, the water cooling effect is better. Because many of them are internal and external short circuits in the battery, external high temperatures may also cause battery combustion. Whether it is an internal short circuit or an external short circuit, the short circuit causes excessive current, followed by heating and combustion.

The internal short circuit causes the temperature of the battery to rise, and after the temperature rises, the chemical materials inside the battery begin to react and accelerate, and then expand the range of short circuit, and the short circuit current will further increase, so that the vicious circle continues, and the battery will soon burn.

In general, when an item catches fire, there are three ways to extinguish the fire. They are to isolate the air, isolate the combustible, and keep the object from reaching the ignition point.

1211 fire extinguisher, carbon dioxide fire extinguisher, dry powder fire extinguisher, carbon tetrachloride fire extinguisher.

Fire extinguisher. It has relatively small corrosiveness, will not cause pollution to the environment, and the speed of fire extinguishing is relatively fast, and can be used for fires caused by liquids, gases, and live equipment.

When using the 1211 fire extinguisher, you need to hold it firmly with your hands, stand about 5 meters away from the fire source, unplug the safety bolt of the fire extinguisher, and shoot towards the fire source.

2. Carbon dioxide fire extinguisher. Since carbon dioxide is a poor conductor of electricity, it can be used for fire protection in power facilities below 6kV. For more than 6kV, the power supply should be cut off before extinguishing the fire.

The advantage of carbon dioxide fire extinguishers is that they can be released without polluting the environment and without causing corrosion and damage to the protected area.

When using a carbon dioxide fire extinguisher, place it 5 meters away from the fire source, remove the safety bolt, pull open and close the pressure handle with one hand, and hold the spray angle handle with the other hand to aim at the flame spray.

3. Dry powder fire extinguisher. Dry powder is a non-conductive material, so it is effective in extinguishing initial fires in flammable liquids, gases, and electrical equipment. Its advantages are easy storage, easy to use, rapid fire extinguishing, and low cost of dry powder fire extinguishing agent.

When using a dry chemical fire extinguisher, grasp it with your hands first, do not turn it upside down or lie flat. Tilt the spray gun slightly upward, put it down 5 meters away from the fire source, remove the safety bolt, open the handle of the spray gun with one hand, and aim the spray gun at the flame with the other hand, spray it on the burning surface until the flame is extinguished.

4. Carbon tetrachloride fire extinguisher. It has the advantage of being non-conductive and suitable for fires of electrical equipment below 10kv, but it has a certain toxicity and may be life-threatening if inhaled too much, so use a wet towel to plug your mouth and nose indoors.

When using a carbon tetrachloride fire extinguisher, shake the bottle a few times, remove the seal, remove the safety pin, and hold the nozzle with one hand and the pressure handle with the other. 2 meters away from the flame, press the pressure handle firmly and hold the nozzle to swing from side to side until the flame is completely extinguished.

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

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 water should not be used to extinguish the fire first, because electrical appliances are generally electrified, and the water splashed on them can conduct electricity.

Fighting fires with water may cause electric shock, and it will not achieve the purpose of fighting fires, and the losses 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.