What happened when there was no electricity at home and it tripped?

There are many reasons why there is no electricity at home, and the switch is just one of them. If there is no leakage and overload, the switch will not trip.

Check whether the power supply fuse is blown. Sometimes, although there is no overcurrent and overload, the fuse has poor contact, which leads to the increase of contact resistance and accumulated heat, thus fusing the fuse. Check whether the lead contact screw of the electric meter introduced into the home is loose. The lead contact screw is loose, and the connector may be oxidized for a long time, resulting in poor contact and no electricity at home. Also, check whether the lead contact screw introduced into the electric meter is loose. Open circuit or poor contact of the current coil inside the instrument.

Check carefully whether the power supply fuse is broken.

Sometimes, although there is no overcurrent and overload, the fuse is poorly contacted, which leads to the increase of contact resistance and accumulated heat, thus blowing the fuse. If the fuse at home is small, it may blow when using high-power household appliances.

It may be that circuit maintenance needs a collective power outage. In this case, the community or community will generally notify in advance, you can call to ask about the property. If there is no power failure nearby, it is also possible that there is something wrong with the sub-circuit, resulting in a regional power failure. Check whether the lead contact screw of the electric meter introduced into the home is loose. The lead contact screw is loose, and the connector may be oxidized for a long time, resulting in poor contact and no electricity at home.