The standard replaces the previous IEC 60044-1 and IEC 60044-2 standards.
The importance of IEC 61869-1 cannot be overstated. By standardizing the requirements for instrument transformers, the IEC aims to ensure: Iec 61869-1 Pdf
гост iec 61869-1-2015 трансформаторы измерительные The standard replaces the previous IEC 60044-1 and