Is it necessary to unplug the network cable in thunderstorm weather because the optical cat fiber is installed?

It is best to unplug the network cable in thunderstorm weather.

Although the optical cat optical fiber will not introduce lightning signals from the outdoor, the optical cable is connected to the household optical fiber in optical splitter with a leather cable, and the butt ends are pigtails, among which the glass optical fiber is used as a carrier for conducting optical signals and is not conductive. So don't worry about lightning strikes in this regard.

However, in a thunderstorm, if the lightning protection measures in the external environment are not good, it will be connected to the user's home from the power supply network and damage the equipment connected to the power socket. If the network cable is connected to a computer or router, it is also possible to import the network cable from the equipment, thus damaging the equipment opposite the network cable. Therefore, from the perspective of safety, it is better to avoid surfing the Internet and using electricity in rainy days.