旋转电机绝缘结构功能性评定 成型绕组试验规程 50MVA、15kV及以下电机绝缘结构热评定和分级
Functional evaluation of insulation systems for rotating electrical machines—Test procedures for form-wound windings—Thermal evaluation and classification of insulation systems used in machines up to and including 50 MVA and 15kV