GB/T 19215.3-2012
ActiveCable trunking and ducting systems for electrical installations - Part 2-2: Particular requirements - Cable trunking systems and cable ducting systems intended for underfloor and flushfloor installations
电气安装用电缆槽管系统 第2部分:特殊要求 第2节:安装在地板下和与地板齐平的电缆槽管系统