农业科学与技术(英文版)
農業科學與技術(英文版)
농업과학여기술(영문판)
Agricultural Science & Technology
2015年
10期
2318-2321
,共4页
高山观缆车%雷电灾害风险评估%技术研究
高山觀纜車%雷電災害風險評估%技術研究
고산관람차%뇌전재해풍험평고%기술연구
Cable cars%Lightning strike risk evaluation%Technology research
基于标准 IEC62305-2提出的评估模型及评估方法,针对高山观缆车的结构功能及雷电损害特点,提出了切实可行的高山观缆车雷电灾害风险评估方法。考虑高山观缆车与一般建筑物的区别,应用三维作图法、区域雷电特征分析解决了观缆车倾斜布设导致等效截收区域高度不均,跨度大导致沿途雷电活动规律差异大的问题,确定了年预计雷击次数的计算方法;以不同类型损害过程及损失后果为基础,根据不同雷电防护措施对雷电侵袭的拦截效果,并结合标准提出的概率选取方法,确定了观缆车特有的雷电击中观缆车、等候区导致人员伤亡以及电气系统失效间接导致人员伤亡的损害概率的计算方法。
基于標準 IEC62305-2提齣的評估模型及評估方法,針對高山觀纜車的結構功能及雷電損害特點,提齣瞭切實可行的高山觀纜車雷電災害風險評估方法。攷慮高山觀纜車與一般建築物的區彆,應用三維作圖法、區域雷電特徵分析解決瞭觀纜車傾斜佈設導緻等效截收區域高度不均,跨度大導緻沿途雷電活動規律差異大的問題,確定瞭年預計雷擊次數的計算方法;以不同類型損害過程及損失後果為基礎,根據不同雷電防護措施對雷電侵襲的攔截效果,併結閤標準提齣的概率選取方法,確定瞭觀纜車特有的雷電擊中觀纜車、等候區導緻人員傷亡以及電氣繫統失效間接導緻人員傷亡的損害概率的計算方法。
기우표준 IEC62305-2제출적평고모형급평고방법,침대고산관람차적결구공능급뇌전손해특점,제출료절실가행적고산관람차뇌전재해풍험평고방법。고필고산관람차여일반건축물적구별,응용삼유작도법、구역뇌전특정분석해결료관람차경사포설도치등효절수구역고도불균,과도대도치연도뇌전활동규률차이대적문제,학정료년예계뢰격차수적계산방법;이불동류형손해과정급손실후과위기출,근거불동뇌전방호조시대뇌전침습적란절효과,병결합표준제출적개솔선취방법,학정료관람차특유적뇌전격중관람차、등후구도치인원상망이급전기계통실효간접도치인원상망적손해개솔적계산방법。
According to structure function and lightning damage of a cable car, a feasible method of lightning strike risk evaluation for a cable car was put forward based on the evaluation model and evaluation method in the standard IEC62305-2. According to the difference between common buildings and cable cars, problems of height non-uniformity of equivalent section caused by inclination of the cable car and diversity of lightning activity regularity caused by the large area were resolved, and expected annual average frequency of lightning strike was calculated using three dimensional graphic approach and regional lightning characteristic analysis. Based on different types of damage process and loss consequences, according to interception effect against lightning invasion of the lightning protection measures and the method of probability selection proposed in the standard, the probability of casu-alty caused by direct lightning strike in a cable car and a waiting area as wel as probabilities of casualty caused by failure of electronic information systems were cal-culated.