2012 International Conference on Lightning Protection (ICLP)最新文献_第2页

On the validity of the Cooray formula for the evaluation of the underground horizontal electric fields of lightning 论库雷公式在地下雷电水平电场评价中的有效性

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344318

M. Khosravi-Farsani, R. Moini, S. Sadeghi, F. Rachidi

引用次数: 0

Preliminary results of the performance of grounding electrodes encased in bentonite-mixed concrete 膨润土混合混凝土中包裹接地电极性能的初步结果

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344296

S. C. Lim, M. A. Ab. Kadir, C. Gomes, S. Buba

{"title":"Preliminary results of the performance of grounding electrodes encased in bentonite-mixed concrete","authors":"S. C. Lim, M. A. Ab. Kadir, C. Gomes, S. Buba","doi":"10.1109/ICLP.2012.6344296","DOIUrl":"https://doi.org/10.1109/ICLP.2012.6344296","url":null,"abstract":"Earth resistance of buried steel cages, encased in bentonite mixed concrete has been investigated. A reference pit was constructed with steel cage encasing in ordinary concrete. The land mass of the site has somewhat uniform surface soil resistivity which is in the range of 100 Ωm. The performance of earth resistance in each electrode has been measured for five months. The results show that for the first month, the lowest earth resistance and the highest decrement in earth resistance are shown by the pit with concrete having 20% bentonite. However, for the following four months, pits with bentonite mixed concrete showed increased earth resistance compared to the reference pit. These results indicate that the long-term reduction in earth resistance in electrodes encased with bentonite, as observed in previous studies, is not the case with electrodes embedded in bentonite mixed concrete. The initial reduction of earth resistance observed at pits with bentonite mixed concrete may most probably be due to the presence of hydrated bentonite which is not mixed with other constituents of concrete. Other than the pits with 20% and 70% bentonite, the outcome of this research thus far reaffirms the capability of concrete blocks to maintain earth resistance with small fluctuation.","PeriodicalId":400743,"journal":{"name":"2012 International Conference on Lightning Protection (ICLP)","volume":"8 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":"127742267","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: 14

Laboratory test results and natural lightning strike effects: How well do they compare 实验室测试结果和自然雷击效应:它们比较起来有多好

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344201

J. Plumer

引用次数: 17

Computational model of grounding systems 接地系统的计算模型

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344213

M. Lefouili, Z. Belli, K. Kerroum, K. El Khamlichi Drissi

引用次数: 2

Recent statistics on lightning fatalities in Malaysia 马来西亚最近的雷击死亡数据

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344337

M. A. Kadir, N. R. Misbah, C. Gomes, J. Jasni, W. Ahmad, Mohd Khair Hassan

引用次数: 38

Monitoring, diagnosis and safety-related functions for surge protective devices for the use in MCR applications MCR应用中使用的浪涌保护装置的监测，诊断和安全相关功能

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344225

G. Finis, Steffen Pförtner, T. Meyer, Andrei Siegel

引用次数: 2

Impulse response of grounding grids: Experimental versus simulated results 接地网的冲击响应:实验与模拟结果

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344333

M. Guimarães, L. Araújo, R. V. Castro, L. F. D. Santos, M. H. M. Vale, S. Visacro

引用次数: 6

Field measurement of the grounding impedance of a wind farm in Venezuela 委内瑞拉某风电场接地阻抗的现场测量

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344393

M. Lozano, L. G. D. Pulgar

引用次数: 2

Some characteristics of positive and bipolar lightning flashes recorded on the Säntis tower in 2010 and 2011 2010年和2011年Säntis塔记录的正极和双极闪电的一些特征

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344271

C. Romero, M. Rubinstein, F. Rachidi, M. Paolone, V. Rakov, D. Pavanello

{"title":"Some characteristics of positive and bipolar lightning flashes recorded on the Säntis tower in 2010 and 2011","authors":"C. Romero, M. Rubinstein, F. Rachidi, M. Paolone, V. Rakov, D. Pavanello","doi":"10.1109/ICLP.2012.6344271","DOIUrl":"https://doi.org/10.1109/ICLP.2012.6344271","url":null,"abstract":"We present an analysis of measured current waveforms associated with positive and bipolar flashes recorded on the Säntis tower, Switzerland, from May 2010 till January 2012. The overall number of recorded flashes in the considered period was 201, of which 30 were of positive polarity (effectively transported positive charge to ground) and three were bipolar. The recorded positive flashes were mainly concentrated in the summer months, August being the month during which most of them occurred (6 events in 2010 and 16 events in 2011). The observed positive flashes are characterized by a median peak current of 11.8 kA, and a median flash duration of 80 ms. These values are consistent with those associated with the data recorded at the Gaisberg Tower in Austria. On the other hand, the amount of transferred charge is substantially larger in our dataset, with a median value of 169 C (6 times as large as the values obtained in Monte San Salvatore and in Japan, and 3 times as large as the value obtained in Austria). Eight flashes out of 30 transported positive charge to the ground in excess of 500 C. The obtained results confirm also the findings of Saba et al. according to which positive lightning flashes may combine high peak currents with high charge transfers (or flash durations). The three bipolar flashes recorded during the considered time period occurred during one storm occurred on August 27, 2011. The relative number of bipolar flashes (1.5%) is found to be lower than the values reported in previous studies in Austria and in Switzerland (3 to 6%). On the basis of the classification proposed by Rakov, two of the three observed bipolar flashes belonged to Type 2 and one to Type 3.","PeriodicalId":400743,"journal":{"name":"2012 International Conference on Lightning Protection (ICLP)","volume":"294 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":"124172290","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: 13

Lightning related effects on the neighborhood of telecommunication tower sites 闪电对电信塔址附近的影响

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI: 10.1109/ICLP.2012.6344410

A. Chandimal, C. Gomes

引用次数: 6