摘要
L21雷电预警系统在呼和浩特基准地震台防雷击试运行发现,雷电到来发出预警并自动切换电源,对前兆设备防雷击起到关键作用,为替代人工断电措施提供安全保障,保证观测记录的正常运行。
The testing operation of L21 lightning warning system in Hohhot basis earthquake station shows that as lightning coming,the device can alarm in prior and switch power supply auto-matically.It plays a key rule in lightning protection of precursor equipment and is a replacer of manual power-offmeasures to provide security safeguards to protect precursor observation equipment to ensure the normal operation of observation records.
出处
《地震地磁观测与研究》
2014年第1期209-212,共4页
Seismological and Geomagnetic Observation and Research
关键词
雷电
预警
隔离
保护
前兆设备
thunderstrike
pre-warning
insulate
protect
earthquake precursory observato-ry device
