指定用于从接地源向飞机供电的连接器的特性。描述飞机固定连接器（体面）和地面电源自由连接器（插头），它们的极性或相序，额定电流，控制电流母触点，密封，额定电压，母触点的可更换性，检查和测试，标记和订购程序。

Specifies the characteristics for connectors used to supply electrical power from a ground source to an aircraft. Describes the aircraft fixed connector (respectable) and the ground supply free connector (plug), their polarity or phase sequence, current ratings, control current female contact, sealing, voltage rating, replaceability of female contacts, inspection and testing and marking and ordering procedures.