Article(id=1242127909243130512, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242127895448064607, articleNumber=null, orderNo=null, doi=10.3981/j.issn.1000-7857.2011.26.008, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1303315200000, receivedDateStr=2011-04-21, revisedDate=1313337600000, revisedDateStr=2011-08-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1316275200000, onlineDateStr=2011-09-18, pubDate=1316275200000, pubDateStr=2011-09-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1316275200000, onlineIssueDateStr=2011-09-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774075971182, creator=sys-migrate, updateTime=1774075971182, updator=sys-migrate, issue=Issue{id=1242127895448064607, tenantId=1146029695717560320, journalId=1146031591421210625, year='2011', volume='29', issue='26', pageStart='3', pageEnd='96', issueExtLink='null', onlineDate='null', pubDate='1316275200000', pubDateStr='2011-09-18', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774075967893, creator='sys-migrate', updateTime=1774075967893, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=57, endPage=60, ext={EN=ArticleExt(id=1242127912489521839, articleId=1242127909243130512, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Impact of Transient Current and Ground Potential Rising on P_C in Lightning Risk Assessment, columnId=1242116080374710456, journalTitle=Science & Technology Review, columnName=Articles, runingTitle=null, highlight=null, articleAbstract=IEC 62305 proposed by the International Electrotechnical Commission is most commonly used. In IEC 62305, parameter P_C is defined as follows: the probability of system failure is due to buildings stroking by the lighting. The parameter depends on the protection level of Surge Protective Device (SPD). However, when lightning strokes buildings, the lightning current in steel will produce electromagnetic interference on the internal system. And when the current runs into the earth, there is a high ground potential increase. In this case, SPD will not work well. Therefore, the definition of P_C is no longer appropriate. Transient calculation models when lightning strokes metal frame of buildings have been proposed. However, no one has applied them to the study of lightning risk assessment. Here, a transient calculation model with Matlab is established to figure out transient current distribution in steels of the buildings when they are stroked by lightning and to calculate the back voltage due to ground potential rise. Under a certain approximate conditions, the effect due to lightning strokes buildings and the current goes into the earth on internal system is analyzed. Using the previous data, a clear physical model is set to show what factors affect the internal system most when lightning strokes buildings or the current goes into the earth. It is able to find that wiring mode and the installation of metal tube are the important parameters having the effect on the value of P_C. Finally, by means of determining the factor that affects the parameter of P_C and improving the parameter value, the value of lightning risk is accurately calculated with this method. The design of lightning protection and the planning of lightning protection are scientifically guided by the method., authors=YANG Zhongjiang, YU Shuyu, CHENG Bin, authorsList=YANG Zhongjiang;YU Shuyu;CHENG Bin, authorCompany=Institue of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=rnZ1bAy7OL6e/Z6xLlnblQ==, pdfFileSize=964452, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1242127911549997737, articleId=1242127909243130512, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=暂态电流和电位抬升对雷电风险参数P_C的影响, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=雷电防护标准IEC 62305中定义参数P_C为雷击建筑物导致内部系统故障的概率,P_C完全取决于浪涌保护器(Surge Protective Device,SPD)的保护等级.SPD在很多情况下并不能起到很好的保护作用,在计算雷电风险值时仅依靠SPD的保护等级是不够的.本文建立雷击建筑中钢筋的简化模型,通过近似的暂态计算得到各钢筋上的电流分布,以及因暂态电压抬升所产生的反击电压,分析其对内部系统的干扰,得出良好的布线方式和线路加装金属管是影响P_C参数取值的重要因素,进而完善P_C参数的取值公式.以至于能更加科学准确地计算雷电风险值,指导雷电防护和规划., authors=杨仲江, 余蜀豫, 程斌, authorsList=杨仲江;余蜀豫;程斌, authorCompany=南京信息工程大学大气物理学院,南京 210044, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=iIA6InQ/eYpWbG/S1fofjQ==, pdfFileSize=964452, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null)}, authors=[Author(id=1288463817973666736, 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