标准摘要
[中文适用范围]： 本部分IEC 60794提出了针对此类电缆的详细要求，以确保与国际标准系列ISO/IEC 11801《信息技术 客户场所通用布线（第1至6部分）》的兼容性。家族规范IEC 60794-2-20的要求适用于本文件涵盖的电缆。第4条中详述的特殊要求定义了与IEC 60794-2-20要求相关的特定选项或附加要求。 [外文原描述]： IEC 60794-2-21:2019+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 60794-2-20 are applicable to cables covered by this document. Particular requirements detailed in Clause 4 define either a specific option in relation to the requirements of IEC 60794-2-20 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: multi-fibre distribution cables
英文名称Optical fibre cables - Part 2-21: Indoor cables - Detailed specification for multi-fibre optical distribution cables for use in premises cabling