Protection of telecommunication equipment from nearby lightning magnetic field

This paper presents the protection procedures applied to an electronic equipment installed in the vicinity of a conductor carrying the partial or total lightning current. The paper assesses the level of overvoltages that might be induced within the equipment and the attenuation that may be achieved by the use of a metallic enclosure. Complementary procedures are also described, such as the treatment of external conductors and antennas. The application of these procedures is exemplified by showing a measuring system used to record the lightning current in rocket-triggered experiments.