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Evaluation of Wiring Constructions for Space ApplicationsA NASA Office of Safety and Mission Assurance (OS&MA) program to develop lightweight, reliable, and safe wiring insulations for aerospace applications is being performed by the NASA Lewis Research Center (LeRC). As part of this effort, a new wiring construction utilizing high strength PTFE (poly tetrafluoroethylene) as the insulation has been tested and compared with the existing military standard polyimide-based MIL-W-81381 wire construction. Electrical properties which were investigated included ac corona inception and extinction voltages (sea level and 60,000 feet), time/current to smoke, and wire fusing time. The two constructions were also characterized in terms of their mechanical properties of flexural strength, abrasion resistance (23 C and 150 C), and dynamic cut-through (23 C and 200 C). The results obtained in this testing effort are presented and discussed in this paper.
Document ID
19950006781
Document Type
Conference Paper
Authors
Hammoud, Ahmad N. (NYMA, Inc. Brook Park, OH., United States)
Stavnes, Mark W. (NYMA, Inc. Brook Park, OH., United States)
Dickman, John E. (NASA Lewis Research Center Cleveland, OH, United States)
Burkhardt, Linda A. (NASA Lewis Research Center Cleveland, OH, United States)
Woodford, Lynn M. (NASA Lewis Research Center Cleveland, OH, United States)
Ide, James R. (NASA Lewis Research Center Cleveland, OH, United States)
Muegge, ED (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
October 1, 1994
Subject Category
SPACECRAFT DESIGN, TESTING AND PERFORMANCE
Report/Patent Number
E-9129
NASA-TM-106735
NAS 1.15:106735
Meeting Information
1994 International Symposium on Electrical Insulation(Pittsburgh, PA)
Funding Number(s)
CONTRACT_GRANT: NAS3-25266
CONTRACT_GRANT: NAS3-27186
CONTRACT_GRANT: NAS1-18580
PROJECT: RTOP 323-57-4A
Distribution Limits
Public
Copyright
Public Use Permitted.

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