DIN EN 50085-2-1:2012 电气装置用电缆中继系统和电缆管道系统. 第2-1部分: 预期安装于墙壁和天花板的电缆中继系统和电缆管道系统; 德文版本EN 50085-2-1-2006 + A1-2011
Cable trunking systems and cable ducting systems for electrical installations - Part 2-1: Cable trunking systems and cable ducting systems intended for mounting on walls and ceilings; German version EN 50085-2-1:2006 + A1:2011