ANSI/IEEE C57.12.20:2011
Standard for Overhead Type Distribution Transformers, 500 kVA and Smaller: High Voltage, 34 500 Volts and Below; Low Voltage, 7970/13 800Y Volts and Below

Standard No.

ANSI/IEEE C57.12.20:2011

Release Date

2011

Published By

American National Standards Institute （ANSI)

Latest

ANSI/IEEE C57.12.20:2011

ANSI/IEEE C57.12.20:2011 history

• 2011 ANSI/IEEE C57.12.20:2011 Standard for Overhead Type Distribution Transformers, 500 kVA and Smaller: High Voltage, 34 500 Volts and Below; Low Voltage, 7970/13 800Y Volts and Below