
Electrical insulation systems - Thermal evaluation of modifications to an established wire-wound EIS
出版:International Electrotechnical Committee

专家解读视频
Lists the required test procedures for qualification of modifications of an established electrical insulation system (EIS) with respect to its thermal classification. This standard is applicable to EIS used in wire-wound electrotechnical devices. The test procedures are comparative in that the performance of a candidate EIS is compared to that of a reference EIS, which has proven service experience in accordance with IEC 60791 or has been evaluated by one of the procedures given in the IEC 61857 series. This second edition cancels and replaces the first edition, published in 1999, and constitutes a technical revision that incorporates test procedures referenced in IEC 60034-18-22.
NEN EN IEC 61858:2005 - Identical
PN EN 61858:2005 - Identical
I.S. EN 61858:2005 - Identical
OVE/ONORM EN 61858:2005 - Identical
DIN EN 61858 (2005-09) - Identical
CEI EN 61858 Ed. 2 (2005) - Identical
SS EN 61858 Ed. 2 (2005) - Identical
NF EN 61858:2005 - Identical
UNE EN 61858:2005 - Identical
VDE 0302-30:2005 - Identical
BS EN 61858:2005 - Identical
SN EN 61858:2000 - Identical