Wire (AWG) Calculator v2

IMPORTANT NOTICE: THIS CALCULATOR IS NOT A GENERAL PURPOSE WIRE GUAGE CALCULATOR.

IT IS INTENDED SOLELY FOR FAA REGISTERED AIRCRAFT WIRING, LIMITED TO THE FOLLOWING APPROVED VOLTAGES: 14VDC, 28VDC, 115VAC, AND 200VAC.

This application assists the aircraft airframe and powerplant (A&P) mechanic in determining the correct American Wire Gauge (AWG) wire size for given conditions, following the procedures outlined in FAA Publication AC 43-13 1B (Acceptable Methods, Techniques, and Practices - Aircraft Inspection and Repair), Chapter 11.

Conditions include circuit length, current, voltage, wire temperature (known or estimated), and derating factors for altitude and wire bundle size/loading percentage.

The application also includes utilities to help the aircraft mechanic determine various parameters without active use of AC 43-13 (when on-site conditions make it impractical), referencing specific figures:

• Maximum Wire Length (standard temperature).
  • Input parameters: circuit voltage, current, current flow, AWG
  • Output: L1
  • Reference: AC 43-13 1B, Fig 11-2/3
• Maximum Current (standard temperature).
  • Input parameters: circuit voltage, current flow, wire length, AWG
  • Output: Max Current
  • Reference: AC 43-13 1B, Fig 11-2/3
• Altitude Deration Factor.
  • Input parameter: Max Altitude
  • Output: Altitude Deration Factor
  • Reference: AC 43-13 1B, Fig 11-6
• Bundle Deration Factor.
  • Input parameters: Wire Count, Loading Percentage
  • Output: Bundle Deration Factor
  • Reference: AC 43-13 1B, Fig 11-5
• IMAX (elevated temperature).
  • Input parameters: ambient temperature, conductor temp rating, AWG
  • Output: IMAX
  • Reference: AC 43-13 1B, Fig 11-4a/b

"Bundle Builder" Feature (NEW!)

• Input parameters: number of wires, AWG sizes, wire currents, max altitude, ambient temp, wire rating, loading factor
• Output: Bundle IMAX (derated for bundle & altitude) with table for IMAX per wire
• Reference: AC 43-13 1B, Fig 11-4a/b

If data extrapolation is necessary due to exceeding chart limits in input/output parameters, appropriate warnings ("** extrapolated data") are displayed.

Disclaimer:

The user of AWG CALCULATOR utilizes it for any specific application at their risk without independent verification of its accuracy. They assume all liability resulting from such use. No warranty is provided concerning result accuracy. Users should have a comprehensive understanding of the relevant theoretical criteria.

AWG Calculator
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TurboSoftSolutions