
Low-voltage Switchgear And Controlgear Assemblies - Part 4: Particular Requirements For Assemblies For Construction Sites (acs)
出版:Nederlands Normalisatie Instituut

专家解读视频
Applicable to type-tested assemblies (TTA) intended for use on construction sites, i.e. temporary places of work to which the public do not generally have access and where building construction, installation, repairs, alteration or demolition of property (buildings) or civil engineering (public works) or excavation or any other similar operations are carried out.
IEC 60439-4 Ed. 2.0 - Identical