IEC 60794-2-31:2019+A1:2020提出了针对此类电缆的详细要求，以确保与ISO/IEC 11801系列国际标准《信息技术-客户场所通用布线》（第1至6部分）兼容。系列规范IEC 60794-2-30的要求适用于本文件涵盖的电缆。第4条中详述的特定要求定义了与IEC 60794-2-30要求或附加要求相关的特定选项。这第三版取消并取代了2012年出版的第二版。它构成技术修订。与上一版相比，此版本包括以下重大技术变更: a)纳入OM5电缆光纤性能类别；b)纳入OS1a电缆光纤性能类别； c)光缆性能类别OM1、OM2和OS1不再是规范性的，保留仅供参考。 该合并版本由第三版（2019年）及其修正案1（2020年）组成。因此，除本出版物外，无需下令修订。 关键词:光纤带状电缆

IEC 60794-2-31:2019+A1:2020 presents the detailed requirements specific to this type of cable to ensure compatibility with the series of International Standards ISO/IEC 11801, Information technology – Generic cabling for customer premises (Parts 1 to 6). The requirements of family specification IEC 60794-2-30 are applicable to cables covered by this document. The particular requirements detailed in Clause 4 define either a specific option in relation to the requirements of IEC 60794-2-30 or additional requirements. This third edition cancels and replaces the second edition published in 2012. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) incorporation of the OM5 cabled fibre performance category;
b) incorporation of the OS1a cabled fibre performance category;
c) cabled fibre performance categories OM1, OM2 and OS1 are no longer normative, and are retained for information.
This consolidated version consists of the third edition (2019) and its amendment 1 (2020). Therefore, no need to order amendment in addition to this publication.

Keywords: optical fibre ribbon cables