Simple Expressions for External Wire Impedance and Admittance for Lightning Current Pulse Propagation in Buried Wires
2006 (English)In: CEEM' 2006: Asia-Pacific Conference on Environmental Electromagnetics, Vols 1 and 2, Proceedings / [ed] Yougang, G; Yougang, G; Qianli, Y; Chuanjun, L, 2006, 513-517 p.Conference paper (Other academic)
Lightning surge propagation in buried cables and grounding systems is a subject of practical interest. In this paper we present simple expressions for external wire impedance and admittance that are valid for studying the lightning interaction with buried wires based on transmission line analysis. Buried wires can be either bare (counterpoise) or insulated (cables). Due to certain drawbacks of existing ground impedance expressions, a modified empirical ground impedance expression for buried wires is proposed. As it's well known that lightning transients have frequencies between few kHz to few MHz, the ground impedance and ground admittance behavior is investigated for wide frequency range.
Place, publisher, year, edition, pages
2006. 513-517 p.
buried wires;external wire impedance;ground admittance;ground impedance;grounding systems;lightning current pulse propagation;lightning surge propagation;transmission line analysis;earthing;lightning;transmission line theory;underground cables;
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-82374DOI: 10.1109/CEEM.2006.258008ISI: 000241457100113OAI: oai:DiVA.org:kth-82374DiVA: diva2:498165
Asia-Pacific Conference on Environmental Electromagnetics. Dalian, PEOPLES R CHINA. AUG 01-04, 2006
QC 201202292012-02-112012-02-112012-02-29Bibliographically approved