区域雷击风险评估的子区域划分  

Sub-region Division of Regional Lightning Risk Assessment

作　　者：李鑫[1] 叶博[1] 杨靖[1] 李享[1] 

机构地区：[1]湖北省防雷中心,武汉430074

出　　处：《湖北农业科学》2017年第5期848-850,共3页Hubei Agricultural Sciences

摘　　要：在对一些特殊场所或大型项目进行区域雷击风险评估时,会分成各个子区域分别根据区域雷击风险评估模型计算区域内的风险因子,传统方法是利用项目内的规划划分项目内的子区域,缺乏一定的合理性。而子区域的划分是区域雷击风险评估中的重要组成部分,在综合考虑各种因素后,提出了用交线法从雷击等效截收面积的角度来划分子区域,最后通过一个石化厂区的案例,比较了交线法与传统方法的特点,发现交线法在子区域的划分中更加合理。When assessing the regional lightning risk for some special places or large projects, the region is to be divided into smaller sections and risk factors are figured out according to the regional lightning risk assessment model within the smaller divisions. Traditionally, the region is divided according to the project planning, which lacks rationality to some extent. As the division of regions is an important part of regional lightning risk assessment. With various factors taken into consideration, the intersection line method was put forward in the division of regions from the perspective of the equivalent intercept area struck by lightening. Finally, the comparison of characteristics between intersection line method and the traditional method was carried out through the case of a petrochemical plant, the results showed that the intersection line method was more reasonable in the division of regions than the traditional method.

关 键 词：区域雷击风险评估 等效截收面积 交线法 

分 类 号：P429[天文地球—大气科学及气象学]