Impulsive disturbances of the geomagnetic field as a cause of induced currents of electric power linesVladimir Belakhovsky, Vyacheslav Pilipenko, Mark Engebretson, Yaroslav Sakharov and Vasily SelivanovJ. Space Weather Space Clim., 9 (2019) A18DOI: https://doi.org/10.1051/swsc/2019015