THUNDERBOLT PROTECTION SYSTEM OF HEBEI DIGITAL SEISMIC TELEMETRY STATIONS

Thunderbolt threaten the operation and security of the instruments in Digital Seismic Telemetry Stations.Thunderbolt disaster is ranked one of the most ten serious disasters by "International Decade Reduced Disaster".In this paper, we introduce the inbreak way of thunderbolt and how to defend.Furthermore, we propose some technical measures and solving schemes to defend thunderbolt, such as screening system and general earthing devices.