The light in the room burned out and tripped. Please tell me the reason.

The first reason: because the overload exceeds the rated load, it belongs to overload protection tripping;

The second reason: because some electrical appliances are grounded, the leakage protection trips;

You can gradually plug in the power supply or turn on the electrical appliance. When you turn on an electrical appliance to trip, first of all, check whether there is any suspicion of leakage, or whether the load of high-power electrical appliances has exceeded the rated load;

The third reason: check whether the leakage can turn off or unplug all other appliances, and turn on this one alone. If it is turned on normally, it means there is no leakage. If it also trips, it means that the problem lies in this equipment;

The fourth reason: if the equipment is not leaking, it is a load problem. You can first look at the size of your air switch (also pay attention to the allowable load of the electric meter), and then convert the total power of the electrical appliances you are using (whether the refrigerator air conditioner is started with a compressor). If it is really overloaded, it is necessary to consider the expansion of the meter and the replacement of the empty switch.

Finally, if the above problems don't exist, replace it with a new one with the same capacity to see if the empty one is invalid or allergic.

Precautions:

If you don't understand, it's safer to find a professional. After all, electricity is a very dangerous commodity.

Pay attention to safety;

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".