EN 61857-31:2017现行
Electrical Insulation Systems - Procedures For Thermal Evaluation - Part 31: Applications With A Designed Life Of 5000 H Or Less (Iec 61857-31:2017)
出版：European Committee for Standards - Electrical
专家解读视频
2017 [01/04/2017]
VDE 0302-31:2017 - Identical
CEI EN 61857-31 Ed. 1 (2017) - Identical
ONORM OVE EN 61857-31:2017 - Identical
DIN EN 61857-31:2017 - Identical
BS EN 61857-31:2017 - Identical
SN EN 61857-31:2017 - Identical
I.S. EN 61857-31:2017 - Identical
