新IEEE标准-已被取代。 本标准旨在作为确定所涵盖设备的性能、互换性和安全性的基础，并帮助正确选择此类设备。

New IEEE Standard - Superseded. This standard is intended for use as a basis for establishing the performance,interchangeability, and safety of the equipment covered and to assist in the proper selection of such equipment.