IEC TS 62666:2016(E)提供了指南，以确保系统或产品委员会提供的IEC出版物中信息、文档和图形符号要求规范的一致性。第二版取消并取代了2010年出版的第一版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: -更新了相关标准的参考文献，并指定了横向标准； -增加了一个新的子条款“设备、基本和安全原则的识别”。其原因是一组标准已被置于TC 3的责任之下。

IEC TS 62666:2016(E) provides guidelines to ensure consistency with respect to the specification of requirements for information, documentation and graphical symbols in IEC publications provided by system or product committees. This second edition cancels and replaces the first edition published in 2010. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition:
- the references to relevant standards have been updated and horizontal standards have been designated;
- a new subclause "Identification of equipment, basic and safety principles" has been added. The reason for this is that a group of standards have been placed under the responsibility of TC 3.