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Attractive radii of vertical and horizontal conductors evaluated using a self consistent leader inception and propagation model—SLIM
Division for Electricity, Uppsala University.
Division for Electricity, Uppsala University.ORCID iD: 0000-0002-6375-6142
2012 (English)In: Atmospheric research, ISSN 0169-8095, Vol. 117, no S1, 64-70 p.Article in journal (Refereed) Published
Abstract [en]

A self consistent lightning connecting leader inception and propagation model (SLIM) is utilized to study the attachment of lightning flashes to grounded structures and hence to evaluate the lightning attractive radii of vertical cylindrical structures and horizontal conductors as a function of height of the structure and peak current of the first return stroke. The attractive radius is defined as the maximum lateral distance from where the structure would be able to attract a down-coming stepped leader. The results are compared with the ones that one would obtain using Electro-Geometrical Method (EGM). The results show that for structure heights of the order of 30 m or less the attractive radii obtain from SLIM do not deviate significantly (i.e. the error is less than about 20%) from the EGM values. However, for taller objects SLIM predicts significantly larger attractive radii than EGM and the error increases with increasing height.

Place, publisher, year, edition, pages
2012. Vol. 117, no S1, 64-70 p.
Keyword [en]
Lightning protection, Electrogeometrical model
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-72268DOI: 10.1016/j.atmosres.2011.08.007ISI: 000309300100009OAI: diva2:487488
Swedish Research Council, 2009-2697

QC 20130204

Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2013-02-04Bibliographically approved

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Becerra Garcia, Marley
Electrical Engineering, Electronic Engineering, Information Engineering

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