SCIENTIFIC AND TECHNICAL AEROSPACE REPORTS
A Biweekly Publication of the National Aeronautics and Space Administration
VOLUME 43, ISSUE 26 - DECEMBER 30, 2005
06 AVIONICS AND AIRCRAFT INSTRUMENTATION
Includes all avionics systems, cockpit and cabin display devices, and flight instruments intended for use in aircraft.
For related information see also 04 Aircraft Communications and Navigation; 08 Aircraft Stability and Control; 19 Spacecraft Instrumentation and Astrionics; and 35 Instrumentation and Photography.
20050245241General Dynamics OTS-Aerospace, Redmond, WA, USA
Development and Validation of a Microenergy High-Voltage Technology for Aircraft Wiring
Ballas, M.; Eisenhart, S.; Garrison, A.; Oct. 2005; 76 pp.; In English Report No.(s): PB2006-101518; No Copyright; Avail.: National Technical Information Service (NTIS)
This report will introduce the reader to a suite of proactive diagnostic tools for commercial use, employing microenergy high-voltage (MEHV) technology for assessing the integrity of wire insulation. The MEHV specifically identifies those insulation breaches that are likely to or have already degraded to the point of failure, resulting in potential arcing between conductors or between a conductor and the aircraft frame or other low impedance paths to ground. The system has the unique ability to provide distance-to-fault determination, when arcing has not occurred under normal aircraft operating loads. The target application is in testing new and aged vehicle aircraft wire bundles for insulation breaches. MEHV is used to identify and locate compromised or damaged insulation. The MEHV technology was evaluated as a diagnostic concept for detection of defects by conducting validation tests, including safety and performance evaluation. NTIS
Electrical Insulation; High Voltages; Nondestructive Tests; Wire; Wiring
Source: NASA.
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