What is the water wading standard for pure electric vehicles?
2 Answers
Regarding the water wading capability of electric vehicles, you can refer to the national standards and test requirements from cities like Beijing and Shanghai. According to the national standard GT/T18384.3 test requirements, electric vehicles can safely travel 500 meters at a speed of 20 km/h in water with a depth of 100 mm, with a wading time of 1.5 minutes. The advantages of pure electric vehicles are as follows: 1. Environmental protection: Electric vehicles use power battery packs and motors for propulsion, producing no exhaust emissions during operation, thus contributing to environmental protection and clean air, almost achieving 'zero pollution.' 2. Low noise: Electric vehicles do not generate noise like conventional vehicles, and the noise they produce is almost negligible. 3. Economic efficiency: The operating cost of electric vehicles is low, about one-fifth that of gasoline vehicles, with high energy conversion efficiency. They can also recover energy during braking and downhill driving, improving energy utilization efficiency. Charging at night using the grid's cheap 'off-peak electricity' helps balance the grid's peak and off-peak differences. 4. Easy maintenance: Electric vehicles are driven by motors and batteries, eliminating the need for traditional engine maintenance tasks such as oil changes, filter replacements, and belt changes. Electric vehicles only require regular checks of components like motors and batteries. 5. Policy advantages: They enjoy higher lottery success rates, substantial subsidies, and exemption from purchase taxes, making their policy advantages quite significant.
I've been driving pure electric vehicles for several years and have quite a bit to say about wading standards. Generally, manufacturers recommend not exceeding 30 cm water depth, which is about the center height of the tires. But many vehicles use the IP67 waterproof standard, meaning they can handle being submerged in 1 meter of water for a short time without issues. In actual driving through waterlogged areas, I've safely passed through 15 cm deep puddles without any problems. However, safety first – if the water is too deep, don't force your way through. Although the battery sealing is good, water ingress could potentially cause a short circuit. I remember during the last typhoon, after slowly driving through a flooded area, I specifically checked that the battery pack was intact. I recommend fellow EV owners to do a simple check after wading, like feeling if the chassis is dry. Don't just believe the ads about waterproofing – daily maintenance is key to avoiding major risks.
