IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)
NORMA vydaná dňa 25.1.2012
Designation standards: IEEE C57.12.40-2011
Note: NEPLATNÁ
Publication date standards: 25.1.2012
Approximate weight : 300 g (0.66 lbs)
Country: International technical standard
Kategória: Technické normy IEEE