本推荐规程概述了为商用运输机提供400赫兹电力的连续工作、柴油或汽油发动机驱动的无刷交流发电机装置的电气性能特征。它旨在帮助航空公司对各种尺寸和配置的设备的建议进行标准化，并为编制详细规范提供指南。该装置主要用于在乘客装卸和维修操作期间为飞机供电。此处规定的设备和400之间的互连电缆的组合- 赫兹交流发电机和飞机应在飞机插座处提供符合MIL-STD-704“B”类设备要求的电源特性。买方必须规定满足特定条件所需的其他限制。

This Recommended Practice outlines the electrical performance characteristics for a continuous duty, diesel or gasoline engine driven brushless alternator unit for supplying 400-Hertz electrical power to commercial transport aircraft. It is intended to assist the airlines in standardizing recommendations for various sizes and configurations of equipment and it is a guide for the preparation of detailed specifications. The unit is primarily intended to supply power to the aircraft during passenger loading and unloading, and during servicing operations. The combination of the equipment specified herein and the interconnecting cables(s) between the 400-Hertz alternator and the aircraft shall provide power characteristics at the aircraft receptacle which meet MIL-STD-704 requirements for Category "B" equipment. Other limits which are necessary to meet specific conditions must be specified by the purchaser.