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Attractive radii of vertical and horizontal conductors evaluated using a self consistent leader inception and propagation model—SLIM
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Royal Technical College, Stockholm.
2012 (English)In: Atmospheric research, ISSN 0169-8095, Vol. 117, no SI, 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 SI, 64-70 p.
Keyword [en]
Lightning, Lightning protection, Electrogeometrical model, Lightning attachment, Attractive radius, Striking distance
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Science of Electricity
URN: urn:nbn:se:uu:diva-164011DOI: 10.1016/j.atmosres.2011.08.007ISI: 000309300100009OAI: oai:DiVA.org:uu-164011DiVA: diva2:465951
Available from: 2011-12-15 Created: 2011-12-15 Last updated: 2012-11-08Bibliographically approved

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Publisher's full texthttp://www.sciencedirect.com/science/article/pii/S0169809511002572

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