VERTICAL AND RADIAL ELECTRIC FIELDS FROM LEADERS AND RETURN STROKES ASSOCIATED WITH LIGHTNING STRIKES TO THE GAISBERG TOWER

被引：0

作者：

Mosaddeghi, A. ^{[1
]}

Shoory, A. ^{[1
]}

Rachidi, F. ^{[1
]}

Diendorfer, G. ^{[2
]}

Pichler, H. ^{[2
]}

Pavanello, D. ^{[1
,3
]}

Rubinstein, M. ^{[4
]}

Zweiacker, P. ^{[1
]}

Nyffeler, M. ^{[5
]}

机构：

[1] Swiss Fed Inst Technol EPFL, Lausanne, Switzerland

[2] Austrian Electrotech Assoc OVE, Vienna, Austria

[3] Coll Champittet, Pully, Switzerland

[4] Univ Appl Sci Western Switzerland, Yverdon, Switzerland

[5] Armasuisse, HPEM Lab, Spiez, Switzerland

来源：

2010 30TH INTERNATIONAL CONFERENCE ON LIGHTNING PROTECTION (ICLP) | 2010年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present and discuss measurements of electric fields (vertical and radial) from leaders and return strokes associated with lightning strikes to the Austrian Gaisberg Tower (GBT) obtained in 2008. The fields were measured at a distance of about 20 m from the tower. Simultaneously with the fields, return-stroke currents were also measured at the top of the tower. The vertical electric field waveforms appeared as asymmetrical V-shaped pulses. The initial, relatively slow, negative electric field change is due to the downward leader and the ensuing fast positive field change is due to the upward return stroke phase of the lightning discharge. The horizontal (radial) electric field due to the leader phase has a similar waveshape to the vertical electric field. However, the radial field due to the return stroke is characterized by a short negative pulse of the order of 1 microsecond or so, starting with a fast negative excursion followed by a positive one.

引用

页数：4