Experts teach you to use car fire extinguishers

Due to the recent frequent spontaneous combustion of vehicles, many citizens began self-testing the fire extinguishers on the vehicles. However, due to the small volume of vehicle fire extinguishers, four or five fire extinguishers are often used to extinguish a vehicle's self-igniting fire. This raises questions about how to use car fire extinguishers properly.

Incident: Four fire extinguishers only extinguished the car fire Recently, people Zhang Dongwei drove a white Jetta to the west side of the North Bridge in Xinfadi and suddenly discovered that black smoke was emitted from the front cover of the machine. Zhang Dongwei immediately got out of the car and opened the cover of the machine to see if a fire reached the old height with the help of the wind. Zhang Dongwei quickly took out the fire extinguisher in the trunk, but a fire extinguisher was used up and the fire did not control.

At this time, Zhao Zhenkui, traffic policeman of the Dahongmen Traffic Brigade of the Fengtai Traffic Detachment, which had just passed the wrecker, passed over the fire extinguisher on the wrecker. Looking at the second fire extinguisher is also very difficult to completely extinguish the fire. Zhao Zhenkui ran to the road and stopped 2 vehicles to borrow a fire extinguisher. All four fire extinguishers were sprayed and the fire on the car was finally extinguished.

When Zhang Dongwei recalled this scene, he had a hard time. "Because of the traffic police and so many enthusiastic people who helped, I also loaned my fire extinguisher. Otherwise, the consequences would be disastrous."

Coincidentally, Ms. Huo has also encountered such a dangerous situation. At that time, she drove past the front door of the urban and rural trade center and found a car on the road was spontaneously ignited, and immediately got off to help. “A fire extinguisher sprayed three or four times was empty. The flames that had already been suppressed were picked up again. Six were used in a row, and they couldn't destroy the fire.” Until someone moved two large fire extinguishers from the next store, A meal spurt, this lifted the danger.

Analysis: Vehicle fire extinguishers can only fire the fire extinguisher at the initial stage of a small fire. The vehicle passed the annual inspection, and it can only be discovered when it is on fire. "Onboard fire extinguishers are equipped with several functions?" Like many drivers, Zhang Dongwei's heart has such a question mark.

Yang Yang, deputy squadron leader of the Dahongmen Fire Squadron, told reporters that the volume of the on-board fire extinguisher is relatively small, generally less than one kilogram, which is the minimum specification. This kind of fire extinguisher has a working time of only ten seconds or more and no more than half a minute. It can only be used in the initial stage, and it has a small fire area and a small amount of surrounding combustible fire. It is similar to the cigarette butt has just introduced the seat cushion. Burn this situation. In the above case, black smoke has been emitted from the lid of Jetta's front machine to prove that the fire has risen and that at least four fire extinguishers can be used to extinguish it. When the fire is already fierce, the "low dose" powder simply cannot cover the flame. Fire extinguishers on the car also have no effect when the tires catch fire.

How large is the fire extinguisher used before? The firemen and the Dahongmen Traffic Brigade’s civilian police conducted a fire drill on site. The police opened the front cover of a scrapped Jetta vehicle, sprayed gasoline into it, and then ignited to simulate the spontaneous combustion site. The firefighters brought up a 5 kg fire extinguisher, which was fired through the air intake grill for 10 seconds. Then the cover of the machine was opened and the roots of the fire were sprayed. In only 20 seconds, the fire was extinguished.

Yang Yang said that the 5 kg fire extinguisher was generally sufficient for the car's spontaneous combustion accident. This fire extinguisher can continue spraying for 2 minutes.

Recommendation: The practical standards for vehicle-mounted fire extinguishers have been learned that it is mandatory to provide fire extinguishers in accordance with the National Standard for the Operational Safety of Motor Vehicles. At the time of the vehicle examination, each test site will check whether the vehicle is equipped with an onboard fire extinguisher. However, there are no requirements for the specifications and types of vehicle-mounted fire extinguishers. In this regard, there are industry insiders suggested that the fire department, vehicle management department and technical inspection department should organize the demonstration, and put forward unified requirements or guiding opinions on the volume of the on-board fire extinguisher.

In addition, according to relevant inspection standards, vehicle-mounted fire extinguishers must undergo annual inspections by qualified fire-fighting equipment companies to check the air pressure, tightness, and powder condensation of fire extinguishers. After passing the annual inspection, fire extinguishers will be affixed with an annual inspection mark marked with a valid period. However, some citizens have reported that at the time of vehicle examination, many testing sites did not carefully inspect the annual inspection period of fire extinguishers, and some fire extinguishers that failed to pass the annual inspection passed through smoothly. “My family car fire extinguisher has been used for 3 years, and the car was allocated and never been inspected. However, at the time of the vehicle inspection, the staff did not say any unqualified,” said the owner of the car, Mr. Zhao.

Ms. Li, who is the owner of the COOPER car, said that her car fire extinguisher is also well-equipped when buying a car. Moreover, just like placing spare tires, there is also a place on the car where fire extinguishers are placed. It is a small grid. "I think that even if I want to change into a large fire extinguisher, I'm afraid I can't let it go," said Ms Lee with worry. The reporter learned that many of the new cars that are currently manufactured are equipped with fire extinguishers and set up areas for placement. Some of these areas are designed to be very small, and they are only suitable for placing about 1 kg of fire extinguishers. If the fire extinguisher is placed directly in the trunk, many owners are worried that the fire extinguisher will roll around. This is unsafe.

Relevant reminder: Vehicle self-ignition and self-rescue key points The best time for spontaneous combustion and self-rescue of a vehicle is 1 to 3 minutes after the vehicle starts fire and smoke, this is the initial stage of fire; 3 to 5 minutes are the stage of fire development; 5 minutes or more is violent combustion At the stage, it has been very difficult to control the fire. It is necessary to wait for the rescue of the fire brigade.

The firefighters indicated that when the engine caught fire, if the lid of the machine had not been opened, it would have been no longer a smoke or an open flame, and basic self-rescue would have been impossible. It was time to wait for firefighters to rescue.

1, when the engine fire smoke, first try to use the back of the machine cover temperature, such as hot, must not immediately open the lid, because the fire has been burning for some time, oxygen is almost depleted, once the lid is opened, the equivalent of oxygen to the fire . At this time, use a fire extinguisher to spray against the air intake grill for 10 to 20 seconds, first suppress the fire; if the temperature of the machine cover has not yet been hot, open a seam and insert the fire extinguisher nozzle into the jet.

2, when the machine cover temperature is too high, you can splash water to cool, you can also wet clothes covered in the above.

3. When the fire is extinguished, spraying should start at 5 to 7 meters from the fire point and stop at 1 to 3 meters.

4, should be directed at the firing point root injection.

5. When the tire catches fire, it should be kept at a distance of 10 meters. Because the tire explosion may splash off the ground debris.