Electric vehicles in the structure is almost covered with different high-voltage lines, in order to safe car companies in the design, will make electric vehicles reach a safe protection level, in the pure electric vehicle industry, there is a national standard: GB 18384-2020, pure electric vehicle safety requirements. This is a mandatory national standard, which means that all electric vehicles must meet the standards to be on the road. According to the standard vehicle requirements, in the 100mm deep pool, driving at a speed of at least 500 meters at a speed of 20km/h seems good, but can it really be unscrupulous when wading in the water?
Pure electric vehicle battery protection is quite strict in the national requirements, in theory, as long as the protection is in place, the wiring harness waterproof is done well In fact, pure electric vehicle wading is no big problem. However, the wiring harness is sealed through different sealing rings, and there will be a problem here, the sealing ring is easy to age when soaked in water for a long time, and once it is aging, it will cause water seepage.
The consequences of slight water leakage are very serious, which will lead to moisture in the relevant components or controllers in the battery pack, which will eventually lead to damage, from this point of view, there is no problem with the short-term wading of electric vehicles, and in order to achieve long-term wading to ensure safety, I am afraid that there is still a long way to go for electric vehicles.
At present, the country is vigorously promoting the popularity of electric vehicles, and we do not have to worry too much about the waterproof performance of batteries. But it is also not "impregnable", because it also involves the protection of other lines. It is worth noting that although electric vehicles have IP67 protection levels, these levels are actually only for short wading in the water, and there is no submarine function! It is impossible to soak in water for a long time.