Since the pure electric vehicle wiring harness includes low-voltage wiring harness and high-voltage wiring harness, in order to remind and warn users and maintenance personnel, the high-voltage wiring harness should use orange cables and protect them with orange corrugated tubes. At the same time, the high-voltage connector should also be marked in orange to serve as a warning, and the selected high-voltage connector should meet the IP67 protection level.
Pre-charging circuit protection design
Because there are a large number of capacitive loads at the input end of the high-voltage equipment controller, directly connecting the high-voltage main circuit may cause high-voltage shocks. High voltage devices are precharged.
Overload/short circuit protection design for high voltage equipment
When the high-voltage accessory equipment of the car is overloaded or the line is short-circuited, the relevant high-voltage circuit should be able to automatically cut off the power supply to ensure that the high-voltage accessory equipment is not damaged and ensure the safety of the car and the passengers.