Applies to new inductive voltage transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 to 100 Hz. This standard relates basically to transformers with separate windings, but also to autotransformers. It replaces IEC 60186 (1987) plus Amendments 1 and 2 only for inductive voltage transformers. IEC 60186 remains in force for capacitive voltage transformers. This consolidated version consists of the first edition (1997) and its amendment 1 (2000). Therefore, no need to order amendment in addition to this publication.