NEN EN IEC 61534-21:2006被替代
Powertrack Systems - Part 21: Particular Requirements For Powertrack Systems Intended For Wall And Ceiling Mounting
出版：Nederlands Normalisatie Instituut
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基本信息
标准编号： NEN EN IEC 61534-21:2006
发布时间：2006/10/1 0:00:00
标准类别：Standard
出版单位：Nederlands Normalisatie Instituut
标准页数：17
标准简介
Defines the particular requirements and tests for PT systems intended for mounting on walls and/or ceiling. They may be installed flush or semi-flush, surface mounted, suspended or spaced away from the surface using fixing devices.
替代本标准的新标准
