IEC 60364-4-44:2024 低压电气设备 - 第4-44部分:安全保护 - 防止电压干扰和电磁干扰

标准编号：IEC 60364-4-44:2024

中文名称：低压电气设备 - 第4-44部分:安全保护 - 防止电压干扰和电磁干扰

英文名称：Low-voltage electrical installations - Part 4-44: Protection for safety - Protection against voltage disturbances and electromagnetic disturbances

发布日期：2024-12-19

标准范围

IEC 60364-4-44:2024提供了在因不同规定原因产生电压干扰和电磁干扰的情况下电气装置的安全性要求。本文件的要求不适用于向公众分配能源的系统，或此类系统的发电和输电（参见IEC 60364-1的范围），尽管此类干扰可以通过这些供应系统传导到电气装置中或电气装置之间。本第三版取消并取代了2007年出版的第二版、修正案1:20 15和修正案2:20 18。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）根据ISO/IEC指令第2部分更新了文件的结构:2021年:术语、定义和符号已在新的子条款440.3下重新分组，表格和图表已重新编号；b)第443条已予修订，以更好地引入DC SPD，并改善部分措辞。

IEC 60364-4-44:2024 provides requirements for the safety of electrical installations in the event of voltage disturbances and electromagnetic disturbances generated for different specified reasons. The requirements of this document are not intended to apply to systems for distribution of energy to the public, or power generation and transmission for such systems (see the scope of IEC 60364-1) although such disturbances can be conducted into or between electrical installations via these supply systems. This third edition cancels and replaces the second edition published in 2007, Amendment 1:2015 and Amendment 2:2018. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the structure of the document has been updated in accordance with the ISO/IEC Directives, Part 2:2021: the terms, definitions and symbols have been regrouped under a new Subclause 440.3, the tables and figures have been renumbered;
b) Clause 443 has been amended to better introduce the DC SPD and to improve some of the wording.

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