Risk from lightning down a telephone line?
30. August 2019

An average duration of about two milliseconds, a temperature of 30,000°C and an electric potential of some 100 million volts – lighting is an awe-inspiring phenomenon. There were a total of 446,000 lightning strikes in 2018 in Germany, most of them in Saarland. They can cause an electrical surge to shoot through wires and even more