IEC指南116:2018(E)是非强制性的，是对ISO/IEC指南51的补充，并建立了有助于实现低压设备安全的指南。这些指南包括风险评估，其中汇集了与低压设备相关的设计、使用、事件、事故和危害的知识和经验，以评估设备生命周期相关阶段的风险，并实施降低风险措施的基础。本IEC指南应由技术委员会在其决定应用的范围内酌情使用。它为ISO/IEC指南50、51和71提供了关于进行风险评估所需信息的额外指导。 IEC指南116的第二版取消并取代了2010年发布的第一版，构成了技术修订；与第一版相比的主要变化如下: ？-增加一个条款，处理源自IEC的与安全相关的安全方面？62443系列； ？-提及“家畜”而非“家畜”； ？-定义和图2与最新版ISO/IEC指南51（2014）的一致性

IEC Guide 116:2018(E) is non-mandatory and complements ISO/IEC Guide 51 and establishes guidelines useful for achieving safety in low voltage equipment. These guidelines include risk assessment, in which the knowledge and experience of the design, use, incidents, accidents and harm related to low voltage equipment are brought together in order to assess the risks during the relevant phases of the life of the equipment and to implement the basics for risk reduction measures. This IEC guide should be used by technical committees as far as appropriate and to the extent they decide to apply it. It gives additional guidance to ISO/IEC Guides 50, 51 and 71 on the information required to allow risk assessment to be carried out performed.
This second edition of IEC Guide 116 cancels and replaces its first edition published in 2010 and constitutes a technical revision; main changes with respect to the first edition are as follows:
？- addition of a clause dealing with safety related security aspects, derived from the IEC？62443 series;
？- reference to “domestic animals” rather than to “livestock”;
？- alignment of definitions and Figure 2 with the latest edition of ISO/IEC Guide 51 (2014)