What's the matter with the sudden power failure at home without tripping?

1, power failure caused by power failure. Once the power supply station stops supplying power, it will cause a large-scale power outage, which is usually the reason. 2. Long-term use of high-power electrical appliances or aging lines. The use of high-power electrical appliances causes voltage overload, fuse blowing and power failure. The wire is disconnected at a switch at home. 4. The electricity meter is damaged due to power failure. Suggested solution: 1. Go to the neighbor's house or the upstairs and downstairs residents' house and ask if there is a power outage. If there is a power outage upstairs and downstairs, it may be a collective power outage in the power supply station. Generally speaking, if there is a temporary power outage, the property and the community will make a notice, or make a notice in the property group. It's better to pay attention to this reason. 2. After checking that the power failure is not caused by the trip of the electric meter, it is necessary to check whether there are any high-power electrical appliances in use at home. Long-term use of high-power electrical appliances or aging lines may lead to power failure. 3. Check the switch at home. Connect a small light bulb to the terminal of the switch. The light bulb is on, which means the switch is broken. At this time, we need to find an electrician to repair it. 4. Check the electric meter. Multimeters can be used to test the voltage of incoming wires. If the incoming voltage reaches 220V, it means that the power failure is caused by the damage of the electric meter.