Why does the air switch trip when the weather is wet?

This trip phenomenon in wet weather indicates that there is serious leakage in the circuit.

If the weather is wet and the leakage is serious, the line will break and trip.

It is best to replace the wire from the switch to the air conditioner. If it was originally buried in the wall, it may be the insulation damage caused by moisture, or it may be the joint leakage. It is suggested to change the line first to solve the problem.

Concept:

The main task of traction substation (switching station, district pavilion) is to supply power to catenary. The short-circuit current that causes "trip" mainly comes from catenary, except the equipment failure of traction substation (switching station, sub-district pavilion).

OCS is in uninterrupted operation, and the electric locomotives under OCS are constantly carrying out busy transportation tasks, as well as the joint coordination of transportation and public works departments. Any accident may affect the catenary and make the circuit breaker "trip".