Vehicle waterproof verification
Regarding the waterproof test at the vehicle level, there is generally a water seal test, that is, under the specified conditions, close the car door cover and hole cover, etc., check the waterproof condition of the vehicle interior and the sealing system, which is mainly used to evaluate the wiring harness in the transition area. Water tightness of the harness required for sealing. The water sealing test is generally divided into three types: spray chamber spray test, car wash test, and high pressure flushing.
● The spray chamber test is divided into two types: no negative pressure and negative pressure. The spraying time is generally 10min. The specific spraying speed and pressure are according to the requirements of each OEM.
● In the car wash test, automatic washing equipment is generally used, and the car is automatically washed 50 times.
● High-pressure flushing test, that is, flushing with pressure ranging from 50 to 100 bar, and the time is as close to the actual car washing operation as possible. After the test, the door trim panel shall be removed and all dry zone wiring harnesses shall be inspected for damage.