It was through your efforts that the Harbin Research Institute of Electrical Measuring Instruments undertook the Secretariat of IEC/TC 85 in 2003, achiev- ing the zero breakthrough for playing a role in the technical ...
1.Introduction IEC 60051-1~9:1997 series standards Direct Acting Indicating Analogue Electrical Measuring Instruments and Their Accessories have covered and specified all analogue instruments for electrical parameter...