If the oil pan catches fire, would you choose to pour water, flour, or oil?

Tadpole found that even adults with a strong sense of safety may make some simple mistakes.

For example, what should you do if an oil pan catches fire?

The truth of the matter is...

Wet rags can't put out fires, but oil can

Tadpole made the wrong choice and was slapped in the face by the “First Lesson on Public Safety for Primary and Secondary School Students in Beijing”.

It seems that even adults still need to learn some public safety knowledge in class with primary and secondary school students.

01

"water"

Regarding "water", the first lesson of the school year explained flood season safety and response to extreme weather, including "hidden underwater dangers", "the power of flowing water", "self-rescue and rescue from drowning", "identification of early warning signals", etc.

Although it is a classroom for primary and secondary school students, the content is close enough to current affairs

This year, water-related disasters have been particularly deeply rooted in people's minds. Behind these disasters are both natural disasters and man-made disasters.

mudslide

On August 13, a flash flood occurred in Longcaogou, Sichuan Province, killing seven people in the scenic "Internet celebrity spot".

The cause of this disaster was mainly due to concentrated high-intensity rainfall in the area, which quickly gathered into surface runoff and caused stream water levels to surge and mudslides to occur.

In the face of such a crisis, the key is to seize the time and evacuate urgently. The occurrence of this tragedy is also closely related to the fact that people do not have a strong awareness of flood prevention.

Rip current

On July 31, two young men were swept into the sea by huge waves while playing at the beach near Macau Road in Qingdao City. One was killed and the other was missing.

The cause of the tragedy is "rip current". According to statistics, more than 80% of beach drowning accidents are caused by rip currents.

The rip current, scientifically known as the "rip current", is a narrow and strong stream of water like a beam along the coast.

There are three characteristics of rip currents: First, they are hidden. Unlike the big waves on the sea surface, they are hidden under the sea surface, so they often do not attract people's attention.

The second is the speed. The rip current has a very fast speed, mostly at 0.3-1 meters per second, and the fastest can reach 3 meters per second. The length can reach 30-100 meters or even longer.

The third is its unpredictability. The intensity and state of rip currents change due to many factors such as waves, tides, astronomy, wind speed and direction, so they are unpredictable.

Knowing about rip currents is a must for swimming at the beach.

02

"fire"

During the class, we also learned common knowledge about fire safety from the perspective of "fire", such as gas fires, electric bicycle fires, etc.

The safety hazards related to "fire" are actually closer to our lives.

Battery car fire

This year, electric vehicle explosions have occurred frequently.

On May 10, an electric vehicle exploded in an elevator in a residential area of ​​Chengdu. A man entered the elevator supporting an electric vehicle. The electric vehicle caught fire the moment the elevator door closed. The elevator was filled with flames and smoke. Five people, including a baby, were seriously injured.

How to prevent electric vehicle fires?

If the electric vehicle is in use, do not modify the battery and circuit without permission.

When charging, avoid privately pulling temporary wires or other "flying wires" for charging. Try to choose a charging environment with good environment and temperature. Leave an appropriate safety distance between electric vehicles and between electric vehicles and charging facilities. Also avoid charging in special environments such as exposure to the sun, high temperature, and rain.

In particular, electric vehicles must not enter elevators or homes!

Cover your mouth and nose with a wet towel?

From childhood to adulthood, we often see scenes of covering the mouth and nose with a wet towel when walking through thick smoke in many fire escape popular science books. So is this practice scientific or not? In fact, this practice is seriously misleading.

Si Ge, head of the Social Firefighting Guidance Division of the Fire Rescue Bureau of the Ministry of Emergency Management, said that a common and serious misunderstanding during fire evacuation is to cover the mouth and nose with a wet towel and escape "through the thick smoke."

This practice was introduced from the United States about 100 years ago. At that time, there were few polymer materials and less toxic smoke, so if there was slight smoke, you could get through with a wet towel. However, now that building materials have changed, the escape method should also change.

Si Ge said that it doesn't mean you have to go through the smoke when you see it. The correct approach is to try not to go through the thick smoke and find a place where you can escape safely or wait for rescue.

It is understood that the number of people who died from smoke in a fire is 4 to 5 times that of those who died from burns. In air with a carbon monoxide concentration of 1.3%, a person will lose consciousness after taking two or three breaths, and will die after breathing for 13 minutes. Smoke spreads faster than flames and is the number one killer in a fire.

Therefore, having the right knowledge in a fire scene is the key to protecting yourself and your family.

If there is a fire, should I run upstairs or downstairs?

If you encounter a fire in a high-rise building and the fire or smoke is above your floor, run downstairs as much as possible (take the stairs, not the elevator).

If the fire is on the floor below where the person is, it is best to try to run to a window that is easily reached by the fire truck.

When evacuating, you should be familiar with the evacuation routes and the location of emergency exits in the place where you live. Generally, high-rise buildings have at least two or more staircases for evacuation.

Jump out of a building or window? This only applies to the second and third floors. If you live on the second or third floor and cannot escape, you can escape through a window or balcony.

In addition to these topics, the first lesson of the new semester also talked about "cloud" security, the Internet and psychological safety education which is very important for students, etc.... They are all very interesting!

Have you watched the first lesson of this school year? Did you learn useful public safety knowledge?

END

Tadpole Musical Notation original article, please indicate the source when reprinting

Editor/Xiao Xitushuo