Traditional Culture Encyclopedia - Traditional stories - About the maintenance of high-voltage wire harness, the correct statement is

About the maintenance of high-voltage wire harness, the correct statement is

Regarding the maintenance of high-voltage wire harness, the correct statement is:

1. The high-voltage wiring harness needs to be tested every maintenance cycle.

2. The overhaul appearance of the high-voltage wire harness is intact in the technical standard, and the insulation resistance is greater than 550M ohms.

3. The high-voltage harness connector is waterproof and intact, and the interface is firmly crimped.

4. The high-voltage harness of the motor is connected with the motor for insulation detection.