A methodology to select a wire insulation for use in habitable spacecraft.
This paper investigates electrical overheating events aboard a habitable spacecraft. The wire insulation involved in these failures plays a major role in the entire event scenario from threat development to detection and damage assessment. Ideally, if models of wire overheating events in microgravity existed, the various wire insulations under consideration could be quantitatively compared. However, these models do not exist. In this paper, a methodology is developed that can be used to select a wire insulation that is best suited for use in a habitable spacecraft. The results of this study show that, based upon the Analytic Hierarchy Process and simplifying assumptions, the criteria selected, and data used in the analysis, Tefzel is better than Teflon for use in a habitable spacecraft.
Lockheed Martin Skunk Works, Palmdale, California 93599-7241, USA.
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Paulos
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Apostolakis
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003343:Corrosion; D003661:Decision Support Techniques; D004560:Electricity; D004780:Environment, Controlled; D006358:Hot Temperature; D006801:Humans; D008962:Models, Theoretical; D011138:Polytetrafluoroethylene / Q000031:analogs & derivatives*; D018570:Risk Assessment; D012680:Sensitivity and Specificity; D012906:Smoke; D018531:Spacecraft; D013499:Surface Properties; D013997:Time Factors; D014893:Weightlessness
D012906:Smoke; C040378:poly(ethylene-tetrafluoroethylene); D011138:Polytetrafluoroethylene