全球导航卫星系统基准站防雷设计

Lightning Protection Design for GNSS Reference Stations

针对全球导航卫星系统(GNSS)基准站容易遭受雷击损失严重的问题,从GNSS基准站自身特点出发,参考传统建筑物防雷设计方法,依据防雷设计原则,分析了GNSS基准站的防雷等级,从外部防雷和内部防雷两方面对防雷过程中接闪、引下线、接地、等电位连接、屏蔽、合理布线等重要环节及电涌保护器等重要装置进行了研究,设计出各环节的具体防雷措施。实际应用表明所设计的方法科学实用、安全可靠,能够有效地提高基准站的防雷效果。

GNSS reference stations are vulnerable to the thunders and lightning. The design of lightning protection devices is of great importance for the establishment of GNSS reference stations. According to the regulations of lightning protection for general buildings and the characteristics of GNSS reference stations, the lightning protection levels of GNSS reference stations are analyzed, and the external and internal protection of lightning arresters, down-conductors, grounding, equipotential bonding, shield, reasonable wiring and SPDs are discussed. Practice shows that the method is effective for preventing the reference stations from being stricken by lightning.