IEC 62561-4:20 23 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 62561-4:20 23涉及用于保持和支撑空气端接、引下线和接地端接系统的金属和非金属导体紧固件的要求和测试。这第三版取消并取代了2017年出版的第二版。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: a)与有关盐雾气氛处理的最新版本ISO IEC 60068-2-52:2017保持一致； b)与有关潮湿含硫气氛处理的新版ISO 22479:2019保持一致； c)关于先前测试适用性的新规范性附件。

IEC 62561-4:2023 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 62561-4:2023 deals with the requirements and tests for metallic and non-metallic conductor fasteners that are used to retain and support the air-termination, down-conductor and earth-termination systems. This third edition cancels and replaces the second edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with the latest edition of ISO IEC 60068-2-52:2017 relating to salt mist atmosphere treatment;
b) alignment with the new edition of ISO 22479:2019 relating to humid sulphurous atmosphere treatment;
c) new normative annex for the applicability of previous tests.