标准摘要
[中文适用范围]： IEC 60721-3-7:2026 标准对产品在便携式及非固定式使用过程中所面临的环境参数类别及其严重程度进行了分类，涵盖运输、停机、维护及维修等阶段。所述环境条件包括产品可临时放置或使用地点的环境状况，以及产品在不同地点间转运过程中的环境状况。本第三版废止并取代1995年发布的第二版及1996年第1号修订版。本版本属于技术性修订，主要技术变更如下：a）多数类别已基于引用技术报告所获新信息，更新为全新类别；b）表1至表5已修订；c）五个资料性 annex 的内容已分别并入正文或予以删除。 [外文原描述]： IEC 60721-3-7:2026 classifies the groups of environmental parameters and their severities to which products are subject to during portable and non-stationary use. This includes periods of transfer, down time, maintenance and repair. The environmental conditions encompassed by these groups include the environmental conditions occurring - at locations where the product can be placed or used temporarily, and - during the transfer of products between different locations. This third edition cancels and replaces the second edition published in 1995 and Amendment 1:1996. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) most classes have been replaced by completely new classes based on the use of new information obtained from referenced Technical Reports; b) Table 1 through to Table 5 have been updated; c) the content of the five informative annexes has either been incorporated into the main body of the document or deleted.
英文名称Classification of environmental conditions - Part 3-7: Classification of groups of environmental parameters and their severities - Portable and non-stationary use