Why does the power sometimes go out when it thunders in summer?

Thunderstorm weather in summer, once the lightning flashes and thunders, many places will lose power. This is because lightning is a discharge phenomenon in the atmosphere, and the high voltage and current generated by lightning have great influence on various electrical facilities on the ground, so thunderstorm weather often causes power failure.

In thunderstorm weather, power failure is generally due to the following reasons. First of all, direct lightning will cause line damage, failure and trip, leading to power failure.

Secondly, thunderstorm and windy weather will reduce the insulation of the line, which is prone to short circuit failure. Strong winds blow down trees or other sundries and hit wires or power supply equipment, resulting in failure. This kind of power outage requires the power department to repair and replace equipment, which usually takes a long time.

Some short-term power outages may also be the result of lightning protection measures for line start-up. The strong electromagnetic radiation caused by lightning leads to induced current pulse in the line, and the safety device will start and disconnect the line to maintain the electrical safety of the end user. This kind of power outage is shorter and easier to handle. The line can be reconnected after the lightning.

The lightning protection equipment of power supply bureau is not good enough! When it thunders, it is caused by overcurrent and main brake tripping protection. In order to ensure the safety of people's lives and property, power supply is limited to electricity. Because there are fewer high-rise buildings and more flat land in rural areas, the transformer is easily damaged by lightning, so in order to avoid lightning strike, the voltage protector is cut off.