With the arrival of spring, many people start to engage in outdoor activities. Kite flying is a popular choice for spring travel and relaxation. However, flying a kite also requires keeping the word "safety" in mind. In particular, the kite string, although it is only a thin one, is not small.

On the online platform, there have been a number of short videos of dangerous kite flying recently. On the afternoon of 220, a boy in Tangyin County, Anyang, Henan Province, was riding an electric car to the library when his neck was cut by a kite string across the road. Witnesses said the kite string was suspended between two trees and was difficult to detect due to the similarity of the color to the background.

The injured boy's family revealed that the boy's wound had 12 stitches on the inner layer and 0 stitches on the outer layer, and the doctor said that if it deviated by another half centimeter and touched the major artery, the consequences would be unimaginable.

On the same day, a man in Taizhou, Jiangsu Province, was also injured in the throat by a kite string while riding a motorcycle, but fortunately he braked in time during high-speed driving, and only suffered a slight abrasion on his neck. The man has reported the case to the police and the relevant authorities are intervening in the investigation.

The next day, a cyclist in Chengdu, Sichuan Province, was stopped by a kite string on the Qinglong Lake Greenway, and his helmet was cut with a crack as deep as 10 centimeters, leaving a 0 centimeter-long blood mark on his forehead.

Videos taken by witnesses show that the kite string is almost transparent in the sun, and the rider does not notice the danger until he gets closer.

In addition to injuring others by mistake, sometimes the kite string can also become entangled in the wires and cause danger. On 22/0, a kite was hung on a high-voltage power line in Linyi County, Shandong. The local staff used a laser wrecker to break the kite string and avoid the danger.

Power maintenance personnel in Linyi County, Shandong: The kite is hung on a high-voltage line above 10 thousand volts, which may cause discharge or short circuit, and in severe cases, it will affect the regional power supply. Someone was found stabbing with a bamboo pole or throwing stones, all of which were extremely dangerous, and the high-voltage electricity could hurt people through the kite string.

Coincidentally, on the 500th, on the railway bridge near the Hutuo River Ecological Green Corridor in Zhengding County, Hebei Province, a red kite hung on the catenary of the high-speed railway, causing an emergency stop of a high-speed railway. The staff urgently removed the kite from the catenary. The railway department said that it is strictly forbidden to fly kites within 0 meters on both sides of the railway line, and the perpetrators will be held responsible.

　　The park is a popular spot for kite flying

　　Be wary of security risks

Every year in the spring, there are more people flying kites. Many enthusiasts like to fly kites around the park, do they understand some of the dangers of kite strings?

The reporter saw in Yuyuantan Park in Beijing that there were many colorful kites overhead, but there were no kite flyers in the scenic spot. The security guard told reporters that kite flying is strictly prohibited in the park and will be stopped if they see it. The reporter followed the direction of the kite and found the kite flyer not far away, and several kite enthusiasts told the reporter that they would come here all year round to concentrate on flying kites, even in winter.

When asked by reporters whether flying kites near the park would hurt himself or others, the enthusiast quickly put on anti-cut gloves. The reporter tried it, and even with gloves on, he could still feel the sharpness of the kite string.

In Weifang, Shandong, every year in spring, there are more people flying kites, and there is the title of "the world's kite capital". Wang Tieyuan is a veteran kite enthusiast with decades of experience in kite flying. He told reporters that the material of the kite string, from the earliest cotton thread, to the current "Kevlar" and "Mighty Horse", etc., the strength of the thread is getting bigger and bigger. If you don't do it properly, you may not only hurt others, but also yourself.

Shandong Weifang kite lover Wang Tieyuan: A small kite line, it has a very large pulling force, if the line is too fast, this hand can not catch the dead kite line. There is also a kite line disc now, use the kite line disc to fly, hold the middle hand to the side, but also control the speed of the line, the speed of the line can not be too fast, too fast to pay attention to the hand do not put on the line, once it is easy to cause damage to the opponent.

In addition to injuring your hands when flying too fast, flying a kite string at a low altitude can also easily injure people nearby, especially for motorcyclists or electric vehicle drivers.

Zhang Kun, a motorcycle enthusiast in Jinan, Shandong: We have also encountered this situation, a kite suddenly fell in front of our motorcycle, and it felt very dangerous at that time.

In this regard, some people have suggested that the government should strengthen the supervision of kite flying activities, and remind the public to choose suitable venues and times for kite flying through various channels, away from crowded areas and places that may affect surrounding facilities, or provide more open venues.

　　Straight to the kite string test

　　How does the thin line become a "sharp weapon"?

Why does a seemingly slender and soft kite string easily cut the human body? How lethal is it? Let's take a look at the kite string test↓↓↓

According to experts, the "strong horse line" or "Kevlar line" used by kite enthusiasts is more conducive to the flying of kites, but because of its material toughness, the strength can reach 5 to 0 times that of the same quality steel.

Journalists and firefighters first tested the tension of three common kite strings to see the maximum pull they could withstand. Among them, the fishing line, nylon line, and Kevlar line are pulled off at about 25kg, 0kg, and 0kg respectively, which shows that it is very strong.

Afterwards, the reporter put on protective gloves to taut a Kevlar cord and used vegetables to simulate the impact. Cucumbers, cabbage, green radish, carrots, and pumpkins can be seen to be cut in half in an instant, and corn is also cut off.

Qi Xinglong, firefighter of the Tongzhou District Fire Detachment of Beijing: The surface of the cut, especially the edge of the edge, is not very flat like it was cut with a kitchen knife, it is not so much that it was cut, but that it was sawn. It is very unfavorable for our later trauma treatment, including scar removal.

Firefighters then tied a piece of pork belly to the roof of the car and conducted the test on a closed road. A kite string is pulled across the road, fluttering in the breeze. As the vehicle accelerates, there is a "whoosh" and the pork belly crosses the kite line. At this moment, a cut mark several centimeters deep appeared on the originally flat surface of pork, which was shocking.

According to the firefighters, this is due to the small contact area of the kite string, and when it encounters a strong collision with an object, the pressure will increase accordingly, and a taut kite string may become a "sharp weapon" to hurt people. In addition, if it is not done properly, the kite line floats to the high-voltage line, and there may be a short circuit in the line or a risk of electric shock. At a professional test site in Weifang City, Shandong Province, power workers wrapped kite strings of different materials around high-voltage lines and energized them for simulated testing. During the test, the kite strings made of cotton and nylon were burned, which means that they are electrically conductive.

State Grid Weifang Power Supply Company Transmission and Inspection Center Sun Xiaolei: We have conducted experiments on a variety of kite string materials in a simulated environment, among which cotton thread and nylon will have short-circuit faults in wet environments, and there is a new type of LED (kite used at night) wire, which can cause failures in dry environments.

Expert reminder

When flying a kite, stay away from the high-voltage line, keep a distance of at least 300 meters, and contact the power supply department for emergency treatment if it occurs or finds that the kite line is attached to the high-voltage line.

Qi Xinglong, firefighter of the Tongzhou District Fire Detachment of Beijing: Kite flying itself is a recreational activity that is conducive to physical and mental health, but we can't fly kites on some viaducts, high-speed rail stations, airports, and some high-voltage power line areas, and of course, around highways. Nowadays, there are some parks, large squares and other places where kite flying is also not allowed. We have to comply with some relevant local regulations.

Source: CCTV News