Are Electric Vehicles Afraid of Wading Through Water?
2 Answers
Electric vehicles have better wading capability than fuel-powered cars, but it is still necessary to drive reasonably according to the water depth. Below is extended information: 1. Wading depth reference standards: According to the national standard GT/T18384.3 test requirements, electric vehicles can safely travel 500 meters at a speed of 20km/h in water with a depth of 100mm, with a wading time of 1.5 minutes. Beijing local management regulations require vehicles to safely travel 500 meters at a speed of 20km/h in water with a depth of 200mm, with a wading time not exceeding 10 minutes. In water with a depth of 300mm, vehicles can safely travel 100 meters at a speed of 5km/h, with a wading time of less than 10 minutes. 2. Electric vehicle safety test standards: In daily use, wading safety can only be ensured when the water depth is less than 300mm, which is just above most of the wheel. The wading capability of a vehicle is not solely determined by electrical equipment; the layout of low-voltage electrical appliances and the sealing of the passenger compartment are also crucial. Additionally, rainwater may cause some corrosion to components such as the motor and battery casing.
Having driven an electric car for nearly five years, I dread flooded wheel hubs most during rainy seasons. Once accidentally plowing through a waterlogged area, my heart was in my throat. Truth is, the three-electric system's protection is impressive—the battery pack is sealed like a tin can, and the motor's waterproof rating surpasses even swimming pool submersible pumps. Manufacturers boldly claim wading depths of half a meter, with core components unharmed after 30 minutes submerged. But models vary—some budget cars position battery packs at the chassis' lowest point, making waist-high water levels risky. The real danger lies in complete submersion: seawater or sewage corrodes metal parts, with post-flood repairs potentially costing a new car's price. For daily water crossings, remember three rules: slow to steady speed, avoid deep pits, and refrain from sudden acceleration afterward. Post-drive, prioritize inspecting chassis wiring connectors.
