【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。更多还原

【Abstract】 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 automatically.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.更多还原