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42V Lichtbogenproblematik

42V arcing faults
 
: Langhoff, W.

Peier, D. ; MESAGO Messe Frankfurt GmbH, Stuttgart:
ECT 2002, Electronics & Communications in Traffic Systems. Tagungsband : Messe und Kongress, Augsburg 04. - 06.06. 2002
Heidelberg: Hüthig, 2002
ISBN: 3-7785-2885-8
pp.181-188
Kongress "Electronics & Communications in Traffic Systems" (ECT) <2002, Augsburg>
German
Conference Paper
Fraunhofer IPA ()
42V Bordnetz; Lichtbogen

Abstract
Arcing faults are a severe threat to electric contacts and wires. This article deals with the topic, how arcing faults are established and what are the consequences. Based on tests at the Fraunhofer IPA and by discussing the theoretical background, it is shown that the voltage in the 42V powernet is high enough that arcing occurs. The minimum arcing current depends on the connectors which are used. At a current of about five ampere, arcing was detected at all tested connectors. Due to these facts, methods to deal with the problem are necessary. It is shown, that for example the geometrical design has an important influence to the density of the electric field and the origin of an arc.

: http://publica.fraunhofer.de/documents/N-16032.html