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Position: Home > Articles > Analysis of Lightning Protection Effect Based on Lightning Rod Maximum Protection Angle in IEC 62305 Journal of Southwest University(Natural Science Edition) 2012,34 (11) 43-46

基于IEC62305避雷针最大保护角法防雷效果分析

作  者:
李家启;王代新;江孟蜀
单  位:
重庆市防雷中心;重庆工商大学计算机科学与信息工程学院;重庆市雷电灾害鉴定与防御工程技术研究中心
关键词:
避雷针;避雷针斜角;保护角;防正击;防侧击
摘  要:
针对闪电对地物发生闪击的瞬间状态,采用库仑定律重点分析研究IEC62305推荐的避雷针最大保护角法的雷电防护效果.结果表明:IEC62305推荐的避雷针最大保护角,其保护域内不仅可免遭雷电正击,还可免遭雷电侧击;而GBJ57推荐的最大保护角保护域内仅可免遭雷电正击.基于此,为GB50057采用IEC62305推荐最大保护角而不继续采用GBJ57推荐最大保护角提供了理论支撑和科学依据.
译  名:
Analysis of Lightning Protection Effect Based on Lightning Rod Maximum Protection Angle in IEC 62305
作  者:
LI Jia-qi1,2,WANG Dai-xin3,JIANG Meng-shu3 1.Lightning Protection Center of Chongqing,Chongqing 401147,China;2.Chongqing Lightning Disaster Indentification and Protection Project Engingeering Research Center,Chongqing 401147,China;3.School of Computer Science and Information Engineering,Chongqing Technology and Business University,Chongqing 400067,China
关键词:
lightning rod;angle of lightning rod;angle of protection;direct-strike lightning protection;flank-striking lightning protection
摘  要:
Aiming at the instantaneous state of the cloud-ground lightning and using the Coulomb's law,we analyze the lightning protection effect in this study based on the lightning rod maximum protection angle in IEC 62305.The result shows that the lightning rod maximum protection angle recommended by IEC 62305 can not only protect direct-strike lightning but also flank-striking lightning,while the maximum protection angle recommended by GBJ57 can only protect direct-strike lightning,thus providing a theoretical support and a scientific basis for the adoption of the maximum protection angle recommended by IEC 62305 instead of that by GBJ57 in GB50057.

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