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Continuing Current in Tower-Initiated Lightning
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering. (EMC)
Austrian Electrotechnical Association (ÖVE), Vienna.
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering. (EMC)ORCID iD: 0000-0002-1607-2493
Austrian Electrotechnical Association (ÖVE), Vienna.
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2010 (English)In: 2010 30th International Conference on Lightning Protection, ICLP 2010, Institute of Electrical and Electronics Engineers (IEEE), 2010, 7845865Conference paper, Published paper (Refereed)
Abstract [en]

We investigate 172 upward-initiated negative lightning flashes containing at least one leader-return stroke sequence observed to the Gaisberg Tower (GBT) in Austria from 2000 to 2009. A geometric mean value of 8.75 kA of the return stroke peak current is determined, followed by a continuing current of 1.48 ms with a charge transfer of 0.786 C. We find that in case of the continuing current duration larger than 40 ms, usually defined as long continuing current, or when the continuing current charge transfer is greater than 5 C, the initiating peak return stroke current did not exceed 20 kA. Moreover, continuing currents with durations of less than 20 ms or with a charge transfer smaller than 5 C, those continuing currents were initiated by return strokes with peaks of any range.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2010. 7845865
Series
International Conference on Lightning Protection, ISSN 2469-8784
Keyword [en]
Lightning
National Category
Engineering and Technology Meteorology and Atmospheric Sciences
Identifiers
URN: urn:nbn:se:kth:diva-87444ISI: 000394698300113Scopus ID: 2-s2.0-85015852851OAI: oai:DiVA.org:kth-87444DiVA: diva2:501657
Conference
30th International Conference on Lightning Protection - ICLP 2010. Cagliari, Italy. September 13th - 17th 2010
Note

QC 20120423

Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2017-06-15Bibliographically approved

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Thottappillil, Rajeev

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