标准摘要
[中文适用范围]: IEC 60364-4-44 部分为电压干扰和电磁干扰事件中的电气装置安全提供了要求。本文档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系统(见 IEC 60364-1 的范围),尽管此类干扰可以通过这些供电系统传导到电气装置内或在电气装置之间传导。 [外文原描述]: 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.
英文名称Low-voltage electrical installations - Part 4-44: Protection for safety - Protection against voltage disturbances and electromagnetic disturbances