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Coupling of the HEMP environment to above-ground wires

Zum leitungsgebundenen NEMP-Bedrohungsszenario
 
: Leuthäuser, K.-D.
: Fraunhofer-Institut für Naturwissenschaftlich-Technische Trendanalysen -INT-, Euskirchen

Euskirchen: Fraunhofer INT, 1996, 41 pp. : Ill.
Bericht - Fraunhofer-Institut für Naturwissenschaftlich-Technische Trendanalysen, 167
German
Book
Fraunhofer INT ()
Bedrohungsszenario; coupling; Einkopplung; Erdboden; ground; HEMP; induzierter Spannungspuls; Leerlaufspannung; Leitung; Leitungstheorie; NEMP; nuclear electromagnetic pulse; nuklearer elektromagnetischer Puls; open-circuit voltage; Polarisation; polarization; reflection; reflexion; transmission line system; transmission line theory

Abstract
This paper deals with the interaction of the electromagnetic pulse environment generated by high altitude bursts (HEMP) with transmission lines. The environments is determined from the EXEMP computer code (Theoretical Notes Nos. 363 to 365). The coupling of these fields to above-ground conductors is then obtained by time-domain transmission line theory (TLT) assuming a perfectly conducting earth. In particular, the contributions of the vertical potential differences at the end of semi-infinite horizontal lines and different types of vertical line elements (vertical risers) are also discussed within the framework of the TLT rules. The paper presents open-circuit voltages induced in transmission lines at distinct locations within the illuminated area as well as contour plots of peak voltages and cumulative voltage distribution functions.

: http://publica.fraunhofer.de/documents/PX-45241.html