CINRAD雷达站防雷设计改进及其科学依据  

Bases for Improving Lightning Protection at CINRAD Radar Station

作　　者：胡东明[1] 黄智慧[2] 邱雄 吴少峰[1] 张羽[1] 吴晓芳[1] 梁玉琼[1] 

机构地区：[1]广州中心气象台 [2]广东省防雷中心 [3]广东天文防雷工程有限公司,广州510080

出　　处：《气象科技》2010年第6期762-765,共4页Meteorological Science and Technology

基　　金：广东省科技计划项目(2009A030302012)资助

摘　　要：新一代多普勒天气雷达多布点在城郊的山头上,站址地质导电率低,雷达塔楼用钢筋混泥土代替钢架结构,防雷措施至关重要。早期建设的CINRAD/SA的防雷设计沿用美国WSR-88D雷达的单针方案,导致多次遭雷击故障。分析广州雷达多次遭雷击故障及当时天气背景,参考美国WSR-88D防雷评估报告,用理论结合实际的方法分析CINRAD/SA的防雷设计改进。得出以下结论,CINRAD雷达站防雷设计不适宜简单沿用WSR-88D雷达的单针方案,需要在天线罩四周增加3～4根避雷针,设备房还有必要增加金属屏蔽网连到防雷地网,形成不漏过任何细节的桶状保护网。Since the radar stations of CINRAD/SA are usually located on mountain tops in the suburb where the ground impedance is extraordinarily high and radar bases are constructed of reinforced concrete instead of iron towers,lightning protection is very important in those radar stations.While the lightning protection of the early CINRAD stations has adopted the same lightning protection system as at the WSR- 88D radar sites,which is a single vertical lightning pole on the radome top,lightning damages repeatedly happened to those early CINRAD stations.The lightning damages to the Guangzhou CINRAD station are analyzed mainly in terms of radar techniques combined with lightning protection techniques,and an efficient improved lightning protection system to the CINRAD/SA is discussed.

关 键 词：CINRAD/SA雷达 WSR-88D雷达 防雷系统 改进 

分 类 号：P481[天文地球—大气科学及气象学]