New Insulation Constructions for Aerospace Wiring Applications. Volume 2. 270 VDC Arc Tracking Testing with Power Controllers
Abstract
The objective of Amendment 2 testing was to further evaluate the ability of insulations to inhibit arc propagation during short circuit conditions in 270 volt dc power distribution systems. Evaluations were performed using Dry Arc Propagation tests on three inorganic insulations in unprotected harnesses and on four candidate and two baseline insulation constructions protected by power controllers. Six different power controllers were tested. Evaluations showed that the three unprotected inorganic insulations were not able to inhibit arc propagation in a 270 volt dc power distribution system. The three solid state power controllers demonstrated good to excellent performance in inhibiting arc propagation in 270 volt dc power distribution systems, and two of the three electromechanical controllers demonstrated moderate abilities. The third electromechanical controller was not able to inhibit arc propagation. The insulation constructions played no part in inhibiting arc propagation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1991
- Accession Number
- ADA240639
Entities
People
- Lynn Woodford
- Ron Soloman
- Steve Domalewski
Organizations
- McDonnell Aircraft Corporation