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Effects of thermal and electrical stressing on the breakdown behavior of space wiringSeveral failures in the electrical wiring systems of many aircraft and space vehicles have been attributed to arc tracking and damaged insulation. In some instances, these failures proved to be very costly as they have led to the loss of many aircraft and imperilment of space missions. Efforts are currently underway to develop lightweight, reliable, and arc track resistant wiring for aerospace applications. In this work, six wiring constructions were evaluated in terms of their breakdown behavior as a function of temperature. These hybrid constructions employed insulation consisting of Kapton, Teflon, and cross-linked Tefzel. The properties investigated included the 400 Hz AC dielectric strength at ambient and 200 C, and the lifetime at high temperature with an applied bias of 40, 60, and 80% of breakdown voltage level. The results obtained are discussed, and conclusions are made concerning the suitability of the wiring constructions investigated for aerospace applications.
Document ID
19950024439
Document Type
Contractor Report (CR)
Authors
Hammoud, Ahmad (NYMA, Inc. Brook Park, OH, United States)
Stavnes, Mark (NYMA, Inc. Brook Park, OH, United States)
Suthar, Jayant (State Univ. of New York, Buffalo, NY., United States)
Laghari, Javaid (State Univ. of New York, Buffalo, NY., United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1995
Subject Category
SPACECRAFT PROPULSION AND POWER
Report/Patent Number
NAS 1.26:198360
NASA-CR-198360
E-9750
Funding Number(s)
CONTRACT_GRANT: NAG3-1345
PROJECT: RTOP 297-50-00
CONTRACT_GRANT: NAS3-27186
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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