IEC 61439-4 : 1ED 2012现行
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 4: PARTICULAR REQUIREMENTS FOR ASSEMBLIES FOR CONSTRUCTION SITES (ACS)
出版：International Electrotechnical Committee
专家解读视频
Describes the specific requirements of ACS as follows: - ASSEMBLIES for which the rated voltage does not exceed 1000 V in case of a.c. or 1500 V in case of d.c.; - ASSEMBLIES where the nominal primary voltage and the nominal secondary voltage of transformers incorporated in ACS are within the limits specified above; - ASSEMBLIES intended for use on construction sites, both indoors and outdoors, 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; - transportable (semi-fixed) or mobile ASSEMBLIES with enclosure.
NF EN 61439-4 : 2013 - Identical
NEN EN IEC 61439-4 : 2013 - Identical
DS EN 61439-4 : 2013 - Identical
VDE 0660-600-4 : 2013 - Identical
CEI EN 61439-4 : 2014 - Identical
DIN EN 61439-4 : 2013 - Identical
BS EN 61439-4 : 2013 - Identical
GOST IEC 61439-4 : 2015 - Identical
PN EN 61439-4 : 2013 - Identical
UNE EN 61439-4 : 2013 - Identical
SANS 61439-4 : 1ED 2014 - Identical
