新的！IEC 60974-9:20 18作为IEC 60974-9:20 18 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 60974-9:20 18适用于根据IEC 60974-1、IEC 60974-6或同等标准的安全要求设计的弧焊和相关工艺设备的安装和使用说明。本标准取消并取代2010年发布的第一版。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: -加入新的第8条； -在表1中添加插值细节。

NEW!IEC 60974-9:2018 is available as IEC 60974-9:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60974-9:2018 is applicable to requirements for installation and instructions for use of equipment for arc welding and allied processes designed in accordance with safety requirements of IEC 60974-1, IEC 60974-6 or equivalent. This standard 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:
- addition of a new Clause 8;
- addition of interpolation details in Table 1.