ISO 6858:2017规定了飞机和地面支持电源之间的电气输出特性和接口要求。这包括作为中央电源或使用点应用的一部分提供的所有外部发电设施。还包括对安全功能的要求。本文件不涉及区域控制下的性能和安全问题。地面交通控制的要求，如牵引点、识别灯和警示灯等也不包括在内。 电气特性与标称28 V DC和115/200 V或230/400 V三种电压有关- 相位，400 Hz交流输出，在飞机连接连接器处测量，如图1所示。

ISO 6858:2017 specifies the electrical output characteristics and interface requirements between an aircraft and ground support electrical supplies. This includes all external electric power generation facilities, provided as part of a central source or in point-of-use application. Requirements for safety features are also included. Performance and safety issues under regional control are not addressed in this document. Requirements for ground traffic control purposes, such as towing points, identification and warning lights, etc. are also excluded. The electrical characteristics relate to nominal 28 V DC and either 115/200 V or 230/400 V three-phase, 400 Hz AC outputs measured at the aircraft attaching connector as indicated in Figure 1.