IEC: 51 - 5 - 1985; Direct Acting Indicating Analogue Electrical Measuring Instruments and Their Accessories Part 5 Special Requirements for Phase Meters, Power Factor Meters and Synchroscopes
IEC: 51 - 5 - 1985; Direct Acting Indicating Analogue Electrical Measuring Instruments and Their Accessories Part 5 Special Requirements for Phase Meters, Power Factor Meters and Synchroscopes
- Geneva IEC 1985
- 19p
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