The reason of withstand voltage tester harness clip falling off.

1. Loose clamp: The wire harness clamp may be loose due to long-term use or material problems, resulting in wire falling off.

2. Wiring harness aging: After a long period of use, the wiring harness may age, resulting in wire falling off.

3. Harness damage: During use, the harness may be subjected to forces such as squeezing and pulling, which may lead to harness damage and lead to wire falling off.

4. Improper installation: Improper installation of the harness clip or mismatch between the harness clip and the harness may also cause the wires to fall off.

5. Environmental factors: The environment in which the harness clip is located may affect its service life. For example, high temperature, humidity and other environments may lead to the aging or damage of the harness clamp, which may lead to the wire falling off.