How to check if the electrical ready board box is overloaded or short circuited?

To check whether the electrical ready board box is overloaded or short circuited, the following steps can be taken:

Check for overload

Observing the circuit breaker: Observe whether the circuit breaker trips frequently, especially at irregular times or after a period of time after closing, and whether the reset button does not protrude after tripping. This may be a manifestation of overload.

Measuring current: Use tools such as calipers to measure the current of the live wire in the circuit and compare it with the rated current of the air switch. If the measured current is greater than the rated current of the switch, there is an overload situation.

Compare electrical parameters: Check the rated working current of the electrical equipment used in the circuit, compare it with the rated current of the air switch, and ensure that the current of the electrical equipment does not exceed the carrying capacity of the switch.

Check for short circuit

Observe the reset button: If the circuit breaker trips immediately after re closing and the reset button does not protrude, it may be caused by a short circuit.

Tool detection: Disconnect all load appliances and use tools such as multimeters to detect the voltage and resistance values of the circuit. If the resistance value of the circuit is extremely low or the voltage is abnormal, there may be a short circuit fault.

One by one investigation: Classify the circuit according to certain rules, and investigate the possible sections of the short circuit one by one until the specific short circuit point is found.

Please note that the above steps need to be operated by electricians with professional knowledge to ensure personal safety and the normal operation of equipment.