Standard for Overhead Type Distribution Transformers, 500 kVA and Smaller: High Voltage, 34500 Volts and Below; Low Voltage, 7970/13800Y Volts and Below
NORM herausgegeben am 9.12.2005
Designation standards: IEEE C57.12.20-2005
Note: UNGÜLTIG
Publication date standards: 9.12.2005
Approximate weight : 300 g (0.66 lbs)
Country: International technical standard
Kategorie: Technische Normen IEEE