建筑物雷电综合防护效率分析与评估

Analysis and Assessment of Integrated Lightning Protection Efficiency of Buildings

通过对重庆市闪电定位系统的监测资料(1999年-2008年)进行了数理统计和数学模拟,重点分析了建筑物防雷装置的截收效率、尺寸效率和综合防护效率.结果表明:不同类别的防雷装置截收效率、尺寸效率不同,其中一类、二类、三类防雷装置截收效率高于IEEE/GB推荐值,而IEEE/GB推荐值高于DL/T620.一类防雷装置尺寸效率高于DL/T620,而DL/T620推荐值高于IEEE/GB;二类、三类防雷装置尺寸效率高于IEEE/GB推荐值,而IEEE/GB推荐值又高于DL/T620.在此基础上,获得了重庆地区防雷装置综合防护效率,为防雷减灾规划和防雷工程设计提供理论参考.

Based on the monitoring data of lightning location system in Chongqing from 1999to 2008,statistical analysis and mathematical simulation are made to study the interception efficiency,size efficiency and comprehensive protection efficiency of the lightning protection devices of local buildings.The results suggest that the interception efficiency and size efficiency of different classes of lightning protection devices are different.The interception efficiency of all the three classes of lightning protection devices in Chongqing is higher than that of IEEE/GB,and that of IEEE/GB is higher than that of DL.The size efficiency of Class I is higher than that of DL,and that of DL is higher than that of IEEE/GB.The size efficiency of Class II and Class III is higher than that of IEEE/GB,and that of IEEE/GB is higher than that of DL.Based on the above results,the comprehensive protection efficiency of lightning protection devices in Chongqing is calculated to provide a theoretical support to the work of lightning protection and disaster mitigation planning and lightning protection engineering design.