T/AOPA 0063-2024 Active

Scope: This document covers the minimum requirements for the design of high-voltage power distribution systems for electric aircraft electric propulsion systems, including general requirements, technical conditions, and testing methods for high-voltage power distribution systems. This document applies to high-voltage power distribution systems that provide high-voltage electrical distribution for light sport aircraft, normal-category aircraft, normal-category rotorcraft, and multi-rotor and fixed-wing unmanned aerial vehicles under normal and emergency conditions. This document does not include design requirements for low-voltage power distribution systems in electric aircraft. It only specifies relevant provisions for high-voltage power distribution systems (i.e., transmission lines and networks from power batteries to high-voltage loads such as motors and controllers). If a hybrid electric propulsion system (electric propulsion system and internal combustion engines jointly driving propellers) or other electric propulsion systems powered by hydrogen energy or fuel cells are involved, the applicable parts of the high-voltage power distribution system can refer to this document, but it cannot cover all issues related to the high-voltage power distribution system of the hybrid electric propulsion system or other new energy systems. Main technical content: The high-voltage power distribution system of electric aircraft transmits and distributes the output power of various high-voltage power sources to various electrical loads. Its safe and reliable operation is crucial for the electric propulsion system. Due to the unique characteristics of the high-voltage power distribution system of electric aircraft, such as high voltage levels and the fact that most electrical equipment is drive motors, special requirements are imposed on the power supply safety, design, and verification standards of the high-voltage power distribution system. Based on this, this technica