A physical derivation of the horizontal electric field under the ground associated with lightning return strokes

Rubinstein, Marcos (School of Management and Engineering Vaud, HES-SO // University of Applied Sciences Western Switzerland) ; Diaz, Luis Gerardo (Simon Bolivar University (USB), Caracas, Venezuela) ; Shoory, Abdolhamid (ABB Corporate Research, Baden-Dättwil, Switzerland) ; Rachidi, Farhad (EPFL, Lausanne, Switzerland)

We derive expressions for the lightning return stroke horizontal electric field and the azimuthal magnetic field under the ground assuming that the fields impinging on the ground can be represented as a sum of plane waves, each being diffracted into the ground with approximately the same angle. The results we obtain are equivalent to those presented by Cooray, who derived approximate expressions by mathematical manipulation of Banister's expressions. We use experimental magnetic fields at ground level from strikes to the 553-m tall CN-Tower to calculate the horizontal electric field and azimuthal magnetic field under the ground at different depths and for different ground conductivities.


Keywords:
Conference Type:
short paper
Faculty:
Ingénierie et Architecture
School:
HEIG-VD
Institute:
IICT - Institut des Technologies de l'Information et de la Communication
Publisher:
Fortaleza, Brazil, 3-7 October 2011
Date:
2011-10
Fortaleza, Brazil
3-7 October 2011
Pagination:
4 p.
Published in:
Proceedings of 2011 International Symposium on Lightning Protection, 3-7 October 2011, Fortaleza, Brazil
Numeration (vol. no.):
2011, pp. 78-81
DOI:
ISBN:
978-1-4577-1897-7
Appears in Collection:

Note: The status of this file is: restricted


 Record created 2020-07-07, last modified 2020-07-09

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