The observation equipment of earthquake monitoring stations is exposed to the risk of lightning strike for a long time.Once lightning strikes occur,it will cause serious interference to the normal operation of the monitoring station.From June 7 to 8,2021,the Xiliu Underground Fluid Observation Station in Danzhou City,Hainan Province,was struck by lightning twice in a row,causing huge losses.Through the field investigation,analysis was conducted on the damaged components and equipment to study the path and method of lightning intrusion.The results indicate that the 2 lightning strikes were caused by the communication network terminal induction,which are typical induced lightning strikes caused by network communication line induction.
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