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2011 International Symposium on Lightning Protection最新文献

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Effects of lightning in oil plants construction sites — Step and touch voltage simulation and tests in work footwear 石油工厂建筑工地雷电的影响。工作鞋的步进和接触电压模拟和试验
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088427
H. E. Sueta, M. Shigihara, L. E. Caires, G. Burani, W. J. D. Nascimento
{"title":"Effects of lightning in oil plants construction sites — Step and touch voltage simulation and tests in work footwear","authors":"H. E. Sueta, M. Shigihara, L. E. Caires, G. Burani, W. J. D. Nascimento","doi":"10.1109/SIPDA.2011.6088427","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088427","url":null,"abstract":"This paper presents a study on the effects caused by indirect lightning on oil refinery construction site workers. We made some tests on work footwear, commonly used by workers in these refineries, and some simulations for a specific site for the evaluation of step and touch voltages.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116637531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Engineering return stroke models a review and evaluation 工程回程模型综述与评价
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088424
F. Santamaria, J. A. Alarcón, Carlos Gomez Vargas
{"title":"Engineering return stroke models a review and evaluation","authors":"F. Santamaria, J. A. Alarcón, Carlos Gomez Vargas","doi":"10.1109/SIPDA.2011.6088424","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088424","url":null,"abstract":"A return stroke model is a mathematical description that can reproduce some of the observed features of the lightning return stroke. Return stroke models help to characterize and quantify the electromagnetic fields produced by return strokes at different distances. For engineering applications, the most important parameters are the return stroke current and its generated electromagnetic fields. Therefore, return stroke models should be capable of generating electromagnetic fields and channel base currents similar to those obtained experimentally. In this paper, a review of the most commonly used engineering return stroke models is developed. A brief description of the models is presented, and using a typical channel base current waveform and return stroke speed as model inputs, the electric fields at different distances are calculated and compared with those observed in nature. In addition, by using the calculated electric fields, the main signature characteristics are evaluated and a ranking of the evaluated models is proposed.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122005067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Step-voltage-optimized Lightning Protection earth-termination systems analysis and simulation 步进电压优化防雷接地端系统分析与仿真
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088444
R. Brocke, V. Hinrichsen, S. Suchanek, Jing Gao
{"title":"Step-voltage-optimized Lightning Protection earth-termination systems analysis and simulation","authors":"R. Brocke, V. Hinrichsen, S. Suchanek, Jing Gao","doi":"10.1109/SIPDA.2011.6088444","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088444","url":null,"abstract":"Earth-Termination Systems as an important part of the Lightning Protection Systems must be designed in a way that lightning currents are safely diverted into the ground without generating step-voltages on the surface of the soil that would be dangerous to human beings. The paper considers safety limits for step-voltages and examines the effectiveness of several design principles of earth-termination systems using the possibilities of finite element computer simulations.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122274657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Measurements of lightning discharges in overhead distribution feeders 架空配电馈线雷电放电的测量
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088460
A. Lazzaretti, M. A. Ravaglio, L. F. Toledo, J. Teixeira, P. Rojas, C. Pinto
{"title":"Measurements of lightning discharges in overhead distribution feeders","authors":"A. Lazzaretti, M. A. Ravaglio, L. F. Toledo, J. Teixeira, P. Rojas, C. Pinto","doi":"10.1109/SIPDA.2011.6088460","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088460","url":null,"abstract":"This paper presents the development of an automatic system designed to measure fast electromagnetic transients on energized distribution network on both, medium and low voltage circuits. The four developed systems were installed on class 15 kV feeders. The feeders were chosen according to the flash lightning density levels of the region. Besides the constructive details of the develop system, the paper shows the main results achieved.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127325380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Lightning parameters for engineering applications — An update on CIGRE WG C4.407 activities 工程应用的闪电参数-对CIGRE WG C4.407活动的更新
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088434
V. Rakov
{"title":"Lightning parameters for engineering applications — An update on CIGRE WG C4.407 activities","authors":"V. Rakov","doi":"10.1109/SIPDA.2011.6088434","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088434","url":null,"abstract":"This report summarizes activities of CIGRE WG C4.407 from April 2008 to present. A total of seven meetings were held. Main topics discussed are listed. Current version of the outline of the Reference Document is presented.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114187445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Study of lightning protection systems in oil plants due maintenance job: Risk analysis 油厂维护作业雷电防护系统的研究:风险分析
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088442
G. H. L. Coelho, J. Paulino, R. K. Moreira, Alexandre Kascher Moreira
{"title":"Study of lightning protection systems in oil plants due maintenance job: Risk analysis","authors":"G. H. L. Coelho, J. Paulino, R. K. Moreira, Alexandre Kascher Moreira","doi":"10.1109/SIPDA.2011.6088442","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088442","url":null,"abstract":"Oil refinery industries regularly stop the production of a part of the plant for maintenance job. The workers involved on this job may be subjected to risks related to lightning strikes. This article deals with risk analysis in maintenance job. A study of references about lightning protection systems is made. The IEC 62305-2 toll for risk calculation is present and a tolerable risk is defined. Risk of loss of human life is calculated in several situations and the necessity of implementation of measures to reduce the risk is analyzed. The particularities of the maintenance job are studied and the principles of protection are presented.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"5 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123899541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Lightning initiated from tall structures — A review 高层建筑引发的闪电——回顾
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088435
G. Diendorfer
{"title":"Lightning initiated from tall structures — A review","authors":"G. Diendorfer","doi":"10.1109/SIPDA.2011.6088435","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088435","url":null,"abstract":"Current parameters of tower triggered lightning are of interest for the lightning protection of high objects, such as wind turbines. Initiation conditions of upward lightning are still subject of ongoing research and probably needs consideration of local conditions. In this paper results of measurements of upward lightning from the Gaisberg Tower (GBT) in Austria are summarized and compared with some other measurements on towers or rocket-triggered lightning. Upward lightning initiated by a positive upward leader is the most common type (93%) of lightning observed at the GBT, nevertheless 3% of the discharges are bipolar and 4% of the tower flashes are lowering positive charge to ground. Positive flashes are initiated by a negatively charged leader and short current pulses associated with the stepping leader process are observed.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121957419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Electromagnetic analysis of lightning surge response of interconnected wind turbine grounding system 互联风电机组接地系统雷击浪涌响应的电磁分析
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088443
M. R. Ahmed, M. Ishii
{"title":"Electromagnetic analysis of lightning surge response of interconnected wind turbine grounding system","authors":"M. R. Ahmed, M. Ishii","doi":"10.1109/SIPDA.2011.6088443","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088443","url":null,"abstract":"IEC TR61400-24 [1] suggests interconnection of the grounding system of wind turbines to achieve low steady-state resistance, however, the transient behavior during a lightning strike to the interconnected wind turbine grounding system remains to be discussed. This paper investigates the influence of interconnection on the lightning surge response of wind turbine grounding system. Two different numerical methods, Numerical Electromagnetics Code (NEC-4) based on Method of Moments (MoM), and Virtual Surge Test Lab (VSTL) based on Finite Difference Time Domain (FDTD) method are used for electromagnetic analysis of lightning surge response of wind turbine grounding system. Comparison of results using NEC-4 and VSTL are made to clarify the usefulness of these methods for transient analysis of a large grounding system. The influences of resistivity of soil and front time of lightning impulse current, on the response of interconnected wind turbine grounding system are analyzed.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125324346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Analysis of the effect of lightning on the energized shield wire line technology 雷电对带电屏蔽导线技术的影响分析
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088423
J. E. Ramos, V. A. Pires, A. Piantini, P. F. Obase, A. S. Neto, T. O. de Carvalho, Paulo R. Borges de Oliveira
{"title":"Analysis of the effect of lightning on the energized shield wire line technology","authors":"J. E. Ramos, V. A. Pires, A. Piantini, P. F. Obase, A. S. Neto, T. O. de Carvalho, Paulo R. Borges de Oliveira","doi":"10.1109/SIPDA.2011.6088423","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088423","url":null,"abstract":"This paper examines the effect of lightning overvoltages resulting from direct strikes to the two SWL (energized shield wire line technology) systems located in the State of Rondônia, Brazil, with the aim of understanding how lightning affects the SWL system. The analysis covers the periods from 1996 to 2000 (Jaru SWL) and from 1997 to 2007 (Itapuã do Oeste SWL). Field measurements were carried out regarding both soil resistivity and tower footing resistance, as well as laboratory tests to determine the positive and negative critical impulse flashover voltage (CFO) of insulator strings. The influence of soil ionization is also considered.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121287748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Probability of insulation failures in isolated LPS according to the used insulation technologies 根据所使用的绝缘技术计算隔离LPS的绝缘失效概率
2011 International Symposium on Lightning Protection Pub Date : 2011-12-01 DOI: 10.1109/SIPDA.2011.6088445
Ing. Ralph Brocke, Ing. Ottmar Beierl
{"title":"Probability of insulation failures in isolated LPS according to the used insulation technologies","authors":"Ing. Ralph Brocke, Ing. Ottmar Beierl","doi":"10.1109/SIPDA.2011.6088445","DOIUrl":"https://doi.org/10.1109/SIPDA.2011.6088445","url":null,"abstract":"The calculation of separation distances as described in the IEC-Standard for lightning protection is the basis for correct dimensioning of isolated or partly isolated lightning protection systems. In the new IEC 62305 series the negative first stroke became part of the standardization process the first time. Up to now the calculation of separation distances in the IEC-Standard is determined only by the parameters of negative subsequent strokes. The paper shows, that the parameters of the negative first stroke have a big impact on this calculation. By means of three different examples the influence of first and subsequent strokes on the probability of insulation failure per flash was investigated. These examples represent insulated standoffs and insulated down conductors which are the main technologies currently used in isolated LPS. The calculations are done using the logarithmic normal distributions of I and di/dt. As a result it is shown that the probability of insulation failure of an insulated LPS depends strongly on the technology used. It seems to be that the rod-rod spark gap which is basis for the calculation of separation distances according to the IEC standard as well as the insulated stand-off show a similar performance. On the other hand the insulated down conductor shows a completely different behaviour and seems to be oversized.","PeriodicalId":277573,"journal":{"name":"2011 International Symposium on Lightning Protection","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116428234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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