IEC 61300-2-27:2024确定了灰尘对光纤互连设备或无源元件的影响。第二版取消并取代了1995年出版的第一版。本版本为技术修订版。与上一版相比，本版包括以下重大技术更改: a） 增加了规范性引用文件； b） 试验期间的相对湿度要求已被修改； c） 程序描述已被修改； d） 添加了显示可能测试配置的图1； e） 测试的严重程度已根据组件和性能类别进行了更新； f） 增加了第8条，列出了需要指定和报告的详细信息。

IEC 61300-2-27:2024 determines the effects of dust on fibre optic interconnecting devices or passive components. This second edition cancels and replaces the first edition published in 1995. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) normative references have been added; b) the relative humidity requirement during the test has been modified; c) the procedure description has been modified; d) Figure 1 showing possible test configurations has been added; e) the severity of the test has been updated according to the component and performance category; f) Clause 8 has been added, listing details to be specified and reported.