IEC 60186/AMD1:1988 Voltage transformers; amendment No. 1 to IEC 60186:1987 was changed to IEC 60044-2:1997 Instrument transformers - Part 2: Inductive voltage transformers.
IEC 60186/AMD1:1988 Voltage transformers; amendment No. 1 to IEC 60186:1987 was changed to IEC 60044-5:2004 Instrument transformers - Part 5: Capacitor voltage transformers.
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