IEEE Standard for Relays and Relay Systems Associated with Electric Power Apparatus
NORM herausgegeben am 28.12.1989
Designation standards: IEEE C37.90-1989
Note: UNGÜLTIG
Publication date standards: 28.12.1989
Approximate weight : 300 g (0.66 lbs)
Country: International technical standard
Kategorie: Technische Normen IEEE