The protection of high-voltage components mainly includes waterproof, mechanical protection and high-voltage warning signs. Especially the components arranged in the cabin, such as motors and their control systems, electric air-conditioning systems, DC/DC voltage converters, on-board chargers, etc., and the connection interfaces between them, all need to achieve a certain level of waterproof and protection. And high-voltage components should have high-voltage danger warning signs to warn users and maintenance personnel to pay attention to these high-voltage components during maintenance and repair.
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.