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Evaluation of Kapton pyrolysis, arc tracking, and arc propagation on the Space Station Freedom (SSF) solar array Flexible Current Carrier (FCC)Recent studies involving the use of polyimide Kapton coated wires indicate that if a momentary electrical short circuit occurs between two wires, sufficient heating of the Kapton can occur to thermally char (pyrolyze) the Kapton. Such charred Kapton has sufficient electrical conductivity to create an arc which tracks down the wires and possibly propagates to adjoining wires. These studies prompted an investigation to ascertain the likelihood of the Kapton pyrolysis, arc tracking and propagation phenomena, and the magnitude of destruction conceivably inflicted on Space Station Freedom's (SSF) Flexible Current Carrier (FCC) for the photovoltaic array. The geometric layout of the FCC, having a planar-type orientation as opposed to bundles, may reduce the probability of sustaining an arc. An experimental investigation was conducted to simulate conditions under which an arc can occur on the FCC of SSF, and the consequences of arc initiation.
Document ID
19920001921
Document Type
Conference Paper
Authors
Stueber, Thomas J. (Sverdrup Technology, Inc. Brook Park, OH, United States)
Date Acquired
September 6, 2013
Publication Date
November 1, 1991
Subject Category
CHEMISTRY AND MATERIALS (GENERAL)
Report/Patent Number
NASA-CR-189056
NAS 1.26:189056
E-6655
Meeting Information
Photovoltaic Specialists Conference(Las Vegas, NV)
Funding Number(s)
CONTRACT_GRANT: NAS3-25266
PROJECT: RTOP 474-46-10
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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