aircraft wiring
DESCRIPTION
Federal Aviation Administration. Aircraft Wiring. Pat Cahill Engineer, Fire Safety Team FAA Wm. J. Hughes Technical Center Atlantic City International Airport, NJ 08405. International Aircraft Materials Fire Test Working Group Atlantic City, NJ October 19 – 20, 2011. - PowerPoint PPT PresentationTRANSCRIPT
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1Federal AviationAdministration
Aircraft Wiring
Aircraft Wiring
Federal AviationAdministration
International Aircraft Materials Fire Test Working GroupAtlantic City, NJOctober 19 – 20, 2011
Pat CahillEngineer, Fire Safety TeamFAA Wm. J. Hughes Technical CenterAtlantic City International Airport, NJ 08405
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Aircraft Wiring
Recent Aircraft Wiring Tests• Testing was performed on Cross-Linked ETFE wires with three
different wall thicknesses: 0.006”, 0.008”, and 0.010”• Included in this testing were single wires, bundles of 6 or 7
wires, cables of twisted pairs (20 and 22 AWG), flat and round shields, and jackets.
• The wire was supplied by two manufacturers.• Bombardier prepared all of the wires and cables.• The Task Group suggested that we evaluate 7-wire bundles
since they are used in the Arc-Tracking Tests.• The Task Group also wanted to compare the burn length of a
single wire with that of a bundle
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Aircraft Wiring
Recent Aircraft Wiring Test Results
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Recent Aircraft Wiring Test Results
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Recent Aircraft Wiring Test Results
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• Requirements: The average burn length may not exceed 3 inches (76.197mm), and the average flame time after removal of the flame source may not exceed 30 seconds. Drippings from the test specimen may not continue to flame for more than an average of 3 seconds after falling.
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Recent Aircraft Wiring Test Results
• Requirements: The average burn length may not exceed 3 inches (76.197mm), and the average flame time after removal of the flame source may not exceed 30 seconds. Drippings from the test specimen may not continue to flame for more than an average of 3 seconds after falling.
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Recent Aircraft Wiring Test Results
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Recent Aircraft Wiring Tests• This series of testing will be performed with the
hybrid construction which is PTFE/polyimide/PTFE.
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Task Group Discussion• The 7-wire bundle• Single wire test?• Planning a Round Robin?