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
电气装置用电缆槽系统和电缆管道系统第2-1部分:安装在墙壁和天花板上的电缆槽系统和电缆管道系统;德文版EN 50085-2-1:2006+A1:2011