IEC 60974-11:20 21 RLV包含官方IEC国际标准及其红线版本。Redline版本仅提供英文版本，为您提供了一种快速简单的方法来比较IEC官方标准与其以前版本之间的所有变化。 IEC 60974-11:20 21适用于电极直径不超过10 mm的手动金属电弧焊的电极支架。不适用于水下焊接的电极夹。本文件规定了电极夹持器的安全性和性能要求。第四版取消并取代了2010年出版的第三版。本版构成技术修订版。与上一版相比的重大技术变更如下: -将3.6 A型修改为A类；-将3.7 B型修改为B类； -修改8.1以澄清对IEC 60529的引用； -为澄清目的修改10.1； -增加了参考书目。 IEC 60974的这一部分将与IEC 60974-1一起使用。

IEC 60974-11:2021 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 60974-11:2021 is applicable to electrode holders for manual metal arc welding with electrodes up to 10 mm in diameter. It is not applicable to electrode holders for underwater welding. This document specifies safety and performance requirements of electrode holders. This fourth edition cancels and replaces the third edition, published in 2010. This edition constitutes a technical revision. The significant technical changes with respect to the previous edition are the following:
- Modify 3.6 type A to category A;
- Modify 3.7 type B to category B;
- Modify 8.1 to clarify reference to IEC 60529;
- Modification of 10.1 for clarification purposes;
- Added Bibliography.
This part of IEC 60974 is to be used in conjunction with IEC 60974-1.