BS EN 61857-33. Electrical insulation systems. Procedures for thermal evaluation. Part 33. Multifactor evaluation with increased factors at elevated temperature— 21 стр.
Electrical insulation systems. Thermal evaluation of modifications to an established electrical insulation system (EIS). Wire-wound winding EIS— 38 стр.
Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) – Part 1: Wire-wound winding EIS (IEC 61858-1:2014) (english version)
Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications (IEC 61857-21:2009) (english version)
Electrical insulation systems - Procedures for thermal evaluation -- Part 31: Applications with a designed life of 5 000 h or less (IEC 61857-31:2017) (english version)
