"Luo Pang" said: New energy vehicles wading well enough to sail! Netizen: Are you drunk?

After the "July 20" rainstorm in Zhengzhou, although the weather gradually cleared up, people's lives did not immediately return to the right track. In this rainstorm, the urban drainage system could not support the once-in-a-thousand-year rain, almost collapsed, and the accumulated water flooded. More than 400,000 vehicles were affected in the rainstorm, including a considerable number of new energy vehicles. Car owners, repair shops and insurance companies are very busy.

The development of new energy electric vehicle insurance is not particularly mature, and the vehicle insurance purchased by new energy electric vehicles is still under the framework of fuel vehicles. In particular, the water-related insurance that plays an insurance role in floods is called "engine special loss insurance". For claims for damage to internal combustion engines of fuel vehicles, new energy vehicles are not included in the scope of claims. Therefore, once the battery of electric vehicles is damaged after soaking in water, the cost of replacing the battery is too high, and most new energy vehicles are scrapped after being evaluated by insurance companies.

Some people are puzzled, don't they say that new energy vehicles are wading? Even some time ago, celebrity Luo Zhenyu praised in his own program that "electric cars are safer in water than fuel cars, and even can be used as ships". Is that a myth?

The wading performance of new energy electric vehicles is better than that of traditional fuel vehicles. This is because the traditional fuel truck works by internal combustion engine. Only when air enters the cylinder can oil and gas burn, and once rain enters the engine from the intake and exhaust pipes, it will cause flameout. The new energy electric vehicle is driven by motor and battery, and the working environment is closed, so it is not easy to get water.

Secondly, the state has also formulated the relevant standards for dust prevention and drainage of power batteries. If it does not meet the standard, it is not allowed to sell. Moreover, many manufacturers will also regard the dustproof and waterproof standards of batteries as a big selling point.

For example, a brand of new energy vehicles posted a Weibo in last year's epidemic, claiming that a Wuhan car owner had an accident during the epidemic and drove his car into the water, which was delayed for two months due to the epidemic. Therefore, the key equipment and battery of the vehicle can actually work normally! It sounds incredible, and then I found that the dustproof and waterproof rating of this car reached IP68.

IP is the protection ability, and the numbers behind it correspond to the protection ability of solid and liquid respectively. For example, IP68 has a solid protection capacity of 6 and a liquid protection capacity of 8, and can be immersed in water for a long time without affecting its performance. At present, the sealing grade of new energy vehicles has generally reached IP67, so they can wade in water for a short time without being affected.

Although new energy vehicles have been publicly tested many times, in the experiment, the battery pack was soaked in water for half an hour to two hours, and there was no difference. However, the waterproof rating does not include the air inlet, doors and windows of the air conditioner, which means that long-term immersion in the cabin will be affected. Moreover, from the comparison of the experimental environment and life scenes, it can be seen that the experimental results have certain credibility, but they are not completely applicable. For example, in this rainstorm in Henan, the time for vehicles to soak in stagnant water far exceeds the experimental time, and acidic rainwater and dirty underwater environment will cause damage to the bottom of vehicles.

Generally speaking, the new energy electric vehicles are relatively sealed, and the main components have passed the waterproof test, so the wading performance is indeed better than that of ordinary fuel vehicles, which is why they have a "fire" in Xpeng Motors, because they have to walk through the water in the rainstorm. But a car is a car. If you want to drive it into a boat or submarine, it means Luo Pang is drunk. Even if you are so willful and insist on being a submarine, you still have to wait. A few days ago, the China Insurance Association publicly solicited opinions on exclusive insurance for new energy vehicles, and there will be regrets.