Airplane Electrical Wiring Committee Approves First Standard

摘要

ASTM INTERNATIONAL COMMITTEE F39 on Normal and Utility Category Airplane Electrical Wiring Systems has approved its first standard, F 2490, Guide for Aircraft Electrical Load and Power Source Capacity Analysis. The new guide covers how to prepare an electrical load analysis to meet Federal Aviation Administration requirements. "This standard is a model for a consistent method of determining the state of a small airplane's electrical system capacity," says Barry Ballenger, aerospace engineer, Small Airplane Directorate, Federal Aviation Administration. "This is not only important for initial design considerations but also throughout the life of the aircraft." Ballenger notes that many aircraft are modified over their lives and that any modification must show that additional electrical loads will meet the design requirements of the manufacturer's type design.