IEC 60794-3-11:2010规定了管道和直埋安装用单模光纤电缆的技术要求和特性。本规范包括功能机械、环境和光学要求、推荐特征和测试方法，以根据规定要求评估产品。本规范的要求补充了IEC 60794-3和IEC 60794-3-10的要求。与上一版本相比，主要变化如下: -规范的标题已经更新，以包括捆绑应用； -纤维规范条款（子条款5.2.2）已扩大，包括B6_a型纤维。

IEC 60794-3-11:2010 sets forth technical requirements and characteristics of single-mode optical fibre cables for duct and direct buried installation. This specification includes functional mechanical, environmental and optical requirements, recommended features and test methods for assessing the product against the stated requirements. The requirements of this specification supplement those of IEC 60794-3 and IEC 60794-3-10. The main changes with respect to the previous edition are as follows: - the title of the specification has been updated to include lashed applications; - the fibres specification clause (subclause 5.2.2) has been enlarged to include fibres types B6_a.