2012 International Conference on Lightning Protection (ICLP)最新文献_第6页

The electric field of negative upward lightning strikes at the Peissenberg tower, Germany 负向上雷击在德国佩森伯格塔的电场

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344205

M. Manhardt, F. Heidler, K. Stimper

{"title":"The electric field of negative upward lightning strikes at the Peissenberg tower, Germany","authors":"M. Manhardt, F. Heidler, K. Stimper","doi":"10.1109/ICLP.2012.6344205","DOIUrl":"https://doi.org/10.1109/ICLP.2012.6344205","url":null,"abstract":"Subject matter of this paper is the analysis of the slow-varying electric fields and the associated currents of the total of 35 negative upward lightning initiated by the Peissenberg tower, Germany. 34 of which were from winter upward lightning and only one from summer upward lightning. It appears that all of the winter upward lightning were initiated without nearby preceding lightning activity (called “self-initiated” lightning) and only the summer lightning was triggered by nearby lightning activity (called “other-triggered” lightning). The slow-varying electric fields of the winter upward lightning showed a fast rise characterized by the 10-to-90% risetime, with an arithmetic mean of 13.8 ms. After attaining the maximum, the electric field turned into a slow decay being characterized by the time on half value which was evaluated to having the arithmetic mean of 441 ms. Transported charges to ground were on average 44.8 C and on maximum 165 C. The maximum value of the electric field was 39.9 kV/m on average, with the highest value being 64.5 kV/m. For the electric fields, higher values were prevented by recovery effects such as the corona from objects at ground and the redistribution of the charge in the thundercloud. Due to these effects, no or only weak correlations were found between the 10-to-90% risetime, the time on half value, the charge, and the maximum of the electric field. From additional measurements with a field mill, it was found that the electric field recovers to the starting level within some seconds.","PeriodicalId":400743,"journal":{"name":"2012 International Conference on Lightning Protection (ICLP)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126956204","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: 12

Clarification of the mechanism of wind turbine blade damage taking lightning characteristics into consideration and relevant research project 明确考虑雷电特性的风力机叶片损伤机理及相关研究项目

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344332

S. Yokoyama, Y. Yasuda, M. Minowa, S. Sekioka, K. Yamamoto, N. Honjo, T. Sato

引用次数: 13

Summary of 2011 direct and nearby lightning strikes to Launch Complex 39B, Kennedy Space Center, Florida 2011年佛罗里达肯尼迪航天中心39B发射场直接和附近雷击的总结

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344321

C. Mata, A. G. Mata

引用次数: 5

Analytical investigation on OPGW strands melting due to DC arc discharge simulating lightning strike 模拟雷击的直流电弧放电导致OPGW股熔化的分析研究

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344238

M. Iwata, T. Ohtaka, Y. Kuzuma, Y. Goda

引用次数: 6

Influence of thunderstorm-like wind velocities on point discharge corona currents 雷暴样风速对点放电电晕电流的影响

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344399

F. Avella, J. Diaz, D. Ariza, O. Escobar, F. Roman

引用次数: 5

Analysis of lightning detection network data for selected areas in Canada 加拿大选定地区雷电探测网数据分析

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344395

V. Shostak, O. Bormotov, D. Pavanello, W. Janischewskyj, F. Rachidi

{"title":"Analysis of lightning detection network data for selected areas in Canada","authors":"V. Shostak, O. Bormotov, D. Pavanello, W. Janischewskyj, F. Rachidi","doi":"10.1109/ICLP.2012.6344395","DOIUrl":"https://doi.org/10.1109/ICLP.2012.6344395","url":null,"abstract":"An analysis of Canadian Lightning Detection Network (CLDN) data recorded during years 2004 - 2006 is performed for two selected areas in Canada within a 20-km radius around two tall structures: the CN Tower (CNT, 553 m) in Toronto and the Superstack (SS, 380 m) in Sudbury. The explored lightning characteristics include stroke polarity, lake water or land termination (WT or LT), ground stroke densities Ngs, stroke peak currents (including values of I50%, I95%, I5%), distributions of parameters. The results show noticeable differences between characteristics of lightning terminated to lake water and land. In Toronto area (Ngs ≈ 3.24 strokes/(km2·year)), a commonly accepted feature, according to which positive strokes exhibit dominating peak currents in comparison to negative ones, is confirmed only for WT lightning (not close to the CNT), especially in the range of high currents. For LT lightning in the range of current amplitudes close to 50% values, the negative strokes are characterized by larger peaks (by more than 30%) with respect to positive ones. No positive strokes to water were recorded within 5 km near the CNT during the period of analysis. While WT events exhibit a lower Ngs than LT ones, they show larger peak currents. The Sudbury area, characterized by a lower lightning activity (Ngs ≈ 0.91 strokes/(km2·year)), shows the common relation between peak currents of positive and negative polarities (first are dominating). For the SS, the estimated number of upward lightning looks rather low: 0.47 strokes or 0.37 flashes per year. For the CNT, it is about 32 strokes or 14 upward flashes per year. Distributions of Ngs along the distance from the tall objects, beside the increased levels near object, contain dips next to object (up to 3 - 7 km).","PeriodicalId":400743,"journal":{"name":"2012 International Conference on Lightning Protection (ICLP)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134437453","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: 7

Site errors estimation and correction for MDF/TOA combined lightning location network MDF/TOA组合闪电定位网的站点误差估计与校正

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344308

Tao Lu, Ming-li Chen, Ya-ping Du

引用次数: 2

Grounding resistance of grounding electrode using carbon plate made of woody material 采用木质碳板的接地电极的接地电阻

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344327

H. Shimizu, N. Watanabe

引用次数: 2

Lightning induced voltages in simple configurations of underground cables 地下电缆简单配置中的雷击感应电压

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344394

L. Diaz, M. Martínez, J. Ramirez, M. Rubinstein

引用次数: 3

Investigation of compacted and extended objects lightning protection effectiveness on models using artificial clouds of charged water aerosol 使用带电水气溶胶人工云的模式对压缩和扩展物体防雷效果的研究

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344280

A. Temnikov, L. Chernensky, A. Orlov, M. Sokolova, T. Gerastenok, O. Belova

引用次数: 3