1, generally has no effect, you can turn on the light, mainly because the light is dim and you can't see clearly, so you can turn on the light to work.

2. In the past, transmission lines were bare wires, which were easily affected by wind, rain and lightning. Now they are all externally insulated lines, and the line system is equipped with lightning arrester and other protection devices to prevent lightning overvoltage. If the lightning is strong enough, the protection device will automatically start to prevent accidents.