摘要
通过闪电先导发展的二维模型,对IEC62305中雷电风险评估位置因子C_d参数取值进行细化修正,通过分析得出:由于对雷击建筑物概率的影响因素比较复杂,各地区的气候特征、地形特点、城市化水平等方面不尽相同,在进行风险评估时应该根据区域性的不同更加合理的选择参数取值,从而使雷电风险评估更加科学合理,对雷电防护设计起到更好的指导作用。
In this paper, we use the two-dimensional model of lightning leader to refine the parameters of lightning risk assessment in IEC62305, and the result shows that the influence factors of lightning strike probability are complex. Terrain characteristics, urbanization level and so different, in the risk assessment should be based on regional differences in a more reasonable choice of parameter values, so that the lightning risk assessment more scientific and rational, lightning protection design play a better guiding role.
出处
《电瓷避雷器》
CAS
北大核心
2017年第2期112-115,共4页
Insulators and Surge Arresters
关键词
雷电风险评估
位置因子
环境因子
修正
lightning risk assessment
position factor
environmental factor
amendment
