Last 3rd of May, between 14h and 16h, meteorology changed abruptly over the Headquarters of Aplicaciones Tecnológicas, S.A., shifting from a stable weather with clear sky into a heavy thunderstorm.

This image belongs to a lightning strike that occurred recently at a golf field. The imprint on the green has the same shape as the discharge from the cloud to the ground. Its length is around 6 meters. 

The lightning discharge resulted in an overvoltage that caused a failure in the electrical and electronical systems, stopping the train and disabling the communications. Surge protection devices such as ATPV and ATLINE avoid the serious damages caused by thunderstorms.