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On the Interaction of Lightning Upward ConnectingPositive Leaders With Humans
Division for Electricity, Uppsala University.ORCID iD: 0000-0002-6375-6142
Division for Electricity, Uppsala University.
2009 (English)In: IEEE transactions on electromagnetic compatibility (Print), ISSN 0018-9375, E-ISSN 1558-187X, Vol. 51, no 4, 1001-1008 p.Article in journal (Refereed) Published
Abstract [en]

Upward connecting leaders can be initiated from humansunder the influence of lightning downward stepped leaders,thereby causing severe injuries. In order to improve the scarceknowledge about the interaction of upward connecting leaders withhumans, a self-consistent model based on the physics of leader dischargesis used in this paper. Furthermore, a current-generationtypereturn-stroke model is applied to calculate the current pulseproduced during the neutralization of unsuccessful aborted upwardleaders. It is estimated that an upward connecting leader canbe initiated even when the victim is located several tens of metersaway from the lightning channel. However, the lightning exposureto a direct strike and to an aborted leader is found to be reduced by50% and 70%, respectively, when an individual standing straightadopts the squat position. In the case of an aborted upward leader,it is estimated that a short-duration pulse of opposite polarity in thekiloampere range would be produced by the neutralization of theleader charge. Rough estimates of the total energy dissipated in thevictim’s body by the current of an aborted unsuccessful upwardleader range between hundred and thousand joules.

Place, publisher, year, edition, pages
2009. Vol. 51, no 4, 1001-1008 p.
Keyword [en]
Lightning, modeling, safety
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-72358DOI: 10.1109/TEMC.2009.2033265ISI: 000271951600015OAI: oai:DiVA.org:kth-72358DiVA: diva2:487560
Note
QC 20120201Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2017-12-08Bibliographically approved

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Becerra, Marley

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