IEC 60670-1:2024 家用和类似用途固定式电气装置用电气附件盒和外壳第1部分:一般要求

标准编号：IEC 60670-1:2024

中文名称：家用和类似用途固定式电气装置用电气附件盒和外壳第1部分:一般要求

英文名称：Boxes and enclosures for electrical accessories for household and similar fixed electrical installations - Part 1: General requirements

发布日期：2024-12-09

标准范围

IEC 60670-1:20 24适用于额定电压不超过1 000 V AC和1 500 V DC的电气附件的箱体、外壳和外壳部件（以下简称“箱体”和“外壳”），用于室内或室外的家用或类似固定电气装置。符合本文件的箱体和外壳适用于通常不超过+40°C的环境温度，但其24小时内的平均值不超过+35°C，环境空气温度的下限为？5摄氏度。根据箱和外壳的分类，可以应用上述范围之外的其他温度。本文件旨在适用于IEC技术委员会23范围内的电气附件的盒子和外壳。这第三版取消并取代了2015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)在低于正常使用的环境温度下使用和安装的箱体和外壳的分类、标记和试验被修改；b)修改标记耐久性测试；c)增加了固定有帽保护的螺钉的试验；d)增加了一个规范性附件，规定了适用于用IK代码声明的盒子和外壳的测试；e)规定了不需要保留载流部件的内部部件的耐热性和耐火性要求。

IEC 60670-1:2024 applies to boxes, enclosures and parts of enclosures (hereafter called "boxes" and "enclosures") for electrical accessories with a rated voltage not exceeding 1 000 V AC and 1 500 V DC intended for household or similar fixed electrical installations, either indoors or outdoors. Boxes and enclosures complying with this document are suitable for use at ambient temperatures not normally exceeding +40 °C, but their average over a period of 24 h does not exceed +35 °C, with a lower limit of the ambient air temperature of？5 °C. Other temperatures outside the above range can apply according to the classification of the boxes and the enclosures. This document is intended to apply to boxes and enclosures for electrical accessories within the scope of IEC technical committee 23.
This third edition cancels and replaces the second edition published in 2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the classifications, markings and tests of boxes and enclosures for use and installation in ambient temperature below normal use are modified;
b) the test for the durability of markings is modified;
c) a test is added for fixing screws protected by caps;
d) a normative annex is added to specify the tests applied to boxes and enclosures declared with an IK code;
e) requirements for the resistance to abnormal heat and fire of internal parts not necessary to retain current carrying parts are specified.

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