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There are many reasons for air switch tripping, including line overload, short circuit, poor contact, thunderstorm and humidity, electric leakage and so on. Among them, line overload means that the current flowing through the air switch exceeds its rated current, while short circuit means that when the distribution line is short-circuited, the air switch where it is located will immediately trip and power off to prevent the line from burning or causing more serious problems. Poor contact refers to the problem of poor contact of air switch terminals, which leads to the development of heat when current flows through space and time, and finally leads to thermal tripping. Thunderstorms and humid weather may also cause voltage fluctuations, leading to tripping. In addition, electric leakage may also cause the air switch to trip. There are many reasons for air switch tripping, including line overload, short circuit, poor contact, thunderstorm and humidity, electric leakage and so on. Among them, line overload means that the current flowing through the air switch exceeds its rated current, while short circuit means that when the distribution line is short-circuited, the air switch where it is located will immediately trip and power off to prevent the line from burning or causing more serious problems. Poor contact refers to the problem of poor contact of air switch terminals, which leads to the development of heat when current flows through space and time, and finally leads to thermal tripping. Thunderstorms and humid weather may also cause voltage fluctuations, leading to tripping. In addition, electric leakage may also cause the air switch to trip. 1, line overload: the current flowing through the air switch exceeds the rated current of the air switch, resulting in air-to-air trip protection. 2. Short circuit: When the distribution line is short-circuited, the idle line will immediately trip and cut off the power supply to prevent the line from burning or causing more serious problems. 3. Poor contact: The air switch terminal has poor contact, which causes the current to flow through time and space to develop heat, and finally leads to thermal trip.