Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum (src_forum@alionscience.com )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

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Original Message:

Posted by: Michael Moriarty (mike.moriarty@lmco.com )
Organization:Lockheed Martin
Date posted: Thu Mar 11 18:59:37 US/Eastern 1999
Subject: Kapton insulated flexible circuits
Message:
Does anyone have information regarding the fielded or predicted reliability of Kapton (polyimide) insulated flex circuits. Our potential airborne application is with a "twist-flex capsule" in a turret assembly. Please note the distinction between flexible circuit and lead wire. I'm well aware of the widely documented "arc tracking" failure mechanisms associated with bundled Kapton-insulated lead wire on aircraft. My goal is to assess the probability of arc tracking occurring with single layered flex circuits, not lead wire. Any help would be appreciated.

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