IEC 60255-1:20 22规定了适用于测量继电器和保护设备的通用规则和要求，包括任何设备组合形成电力系统保护的分布式保护方案，如控制、监测和过程接口设备，以获得要求和测试的统一性。本文档涵盖了当今使用的主要技术；其他新兴技术存在特定的EMC和安全问题，但本文档中的理念将得到应用。 第二版取消并取代了2009年出版的第一版。与上一版相比，此版本包括以下重大技术变更: a.澄清文件范围； b.合并单元和通信作为保护的一个组成部分；c.二元输出澄清扩大； d.增加了环境操作条件（附录B）； e.增加了测试参考条件； f.多次修改以提高对大多数条款的理解； g.增加制造商的降额； h.安全性和EMC测试从文件中删除，仅供参考； i.修改后的继电器设置和型式试验指南（附件A） j.增加了电池监控端口和低功耗仪表变压器。

IEC 60255-1:2022 specifies common rules and requirements applicable to measuring relays and protection equipment, including any combination of equipment to form a distributed protection scheme for power system protection such as control, monitoring and process interface equipment, to obtain uniformity of requirements and tests. This document covers the main technologies in use today; other emerging technologies present specific EMC and safety issues but the philosophy in this document will be applied.
This second edition cancels and replaces the first edition published in 2009. This edition includes the following significant technical changes with respect to the previous edition:
a. scope of document clarified;
b. merging units and communications as an integral part of the protection added;
c. binary output clarification expanded;
d. environmental operating conditions added (Annex B);
e. test reference conditions added;
f. multiple changes to improve understanding across most clauses;
g. derating by manufacturer added;
h. safety and EMC tests removed from document and referenced only;
i. relay setting and type test guidelines modified (Annex A)
j. battery monitor port and low power instrument transformers added.