Evaluation of wiring constructions for space applications

A 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...

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Bibliographic Details
Main Authors: Hammoud, A.N., Stavnes, M.W., Dickman, J.E., Burkhardt, L.A., Woodford, L.M., Ide, J.R., Muegge, E.
Format: Conference Proceeding
Language:English
Subjects:
Aerospace safety
Aerospace testing
Cable insulation
Corona
Insulation testing
Military standards
NASA
Voltage
Wire
Wiring
Online Access:Request full text
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Summary:A 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/spl deg/C and 150/spl deg/C), and dynamic cut-through (23/spl deg/C to 200/spl deg/C). The results obtained in this testing effort are presented and discussed in this paper.< >
ISSN:1089-084X
DOI:10.1109/ELINSL.1994.401385