The switch at home is broken. Who should I call to repair it?

Usually the switch behind the electric meter or the air (leakage) switch in your home trips.

1. The back switch of the electricity meter trips usually because your household electricity load exceeds the installed capacity. I suggest you apply to the power supply enterprise for capacity increase. For details, please pay attention to and bind the public platform of China Southern Power Grid 95598 > My Power Consumption > Business Handling > Business Change > Select Capacity Expansion > Fill in the handling information, manager information and SMS verification code, and then click.

2. The air (leakage) switch trips generally because the rated current of the air switch is too small to meet your household electricity load or your household appliances are leaking or short-circuited. It is recommended that you entrust a qualified electrician to check for you.

Related content explanation

The safe operation of traction power supply system of electric locomotive should be ensured. In the event of an accident, the relay protection devices installed in the traction substation (switching station, sub-district pavilion) will be started by the short-circuit current generated by the accident, and the circuit breaker supplying power to the accident point will be automatically disconnected, so as to narrow the scope of the accident and ensure the safe operation of other equipment and normal power supply to non-accident lines. This action of automatically disconnecting the circuit breaker due to an accident is customarily called "tripping".