EN 60794-3-40-2008 光缆.第3-40部分:室外光缆.充气和/或拉式非人类可及排雨管和生活污水管安装用下水道光缆和管道用系列规范
Optical fibre cables - Part 3-40: Outdoor cables - Family specification for sewer cables and conduits for installation by blowing and/or pulling in non-man accessible storm and sanitary sewers