光缆. 第3-12部分: 室外光缆. 房屋布线用管道和直埋通信光缆的详细规格

[中文适用范围]： IEC 60794 的这一部分是用于场所布线的管道和直埋光通信电缆的详细规范，以确保与 ISO/IEC 11801-1 的兼容性。本文档的要求确保 ISO/IEC 11801-1 模型适用于通用布线 [外文原描述]： IEC 60794-3-12:2021 is a detailed specification for duct and directly buried optical telecommunication cables for use in premises cabling to ensure compatibility with ISO/IEC 11801-1. This document's requirements ensure that the ISO/IEC 11801-1 models work for generic cabling and system performances. Values in this document support these models. The requirements of the family specification IEC 60794-3-10 are applicable to cables covered by this document. Particular requirements detailed in Clause 5 either define a specific option relative to the requirements of IEC 60794-3-10 or define additional requirements. This third edition cancels and replaces the second edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - addition of references to ISO/IEC 11801-1; - removal of references to ISO/IEC 24702; - incorporation of the OM5 cabled fibre performance category; - incorporation of the OS1a cabled fibre performance category; - cabled fibre performance categories OM1, OM2 and OS1 are no longer normative, and are retained for information.