UFC 3 -520-01
June 10, 2002
C57.12.10-1997, Safety Requirements 230 kV and Below 833/958 Through 8333/10417
kVA, Single-Phase, and 750/862 Through 60,000/80 ,000/100,000 kVA, Three-
Phase Without Load Tap Changing; and 3750/4687 Through
60,000/80,000/100,000 kVA with Load Tap Changing
C57.12.23-1992 (R1999), Standard for Transformers--Underground-Type, Self-Cooled,
Single -Phase Distribution Transformers With Separable, Insulated, High-Voltage
Connectors; High Voltage (24940 GrdY/14400 V and Below) and Low Voltage
(240/120 V, 167 kVA and Smaller)
C57.12.25-1990, Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled,
Single -Phase Distribution Transformers with Separable Insulated High-Voltage
Connectors: High Voltage, 34500 GrdY/19920 Volts and Below; Low Voltage,
-
240/120 Volts; 167 kVA and Smaller
C57.12.50-1981 (R1998), Requirements for Ventilated Dry-Type Distribution
Transformers, 1 to 500 kVA, Single-Phase, and 15 to 500 kVA, Three -Phase, with
High-Voltage 601 to 34500 Volts, Low Voltage 120 to 600 Volts
C57.12.51-1981 (R1998), Requirements for Ventilated Dry-Type Power Transformers,
501 kVA and Larger, Three-Phase, with High-Voltage 601 to 34500 Volts, Low
Voltage 208Y/120 to 4160 Volts
C57.12.52-1981 (R1998), Requirements for Sealed Dry-Type Power Transformers, 501
kVA and Larger, Three-Phase, with High-Voltage 601 to 34500 Volts, Low Voltage
208Y/120 to 4160 Volts
C57.12.70-2000, Terminal Markings and Connections for Distribution and Power
Transformers
C57.13-1993, Instrument Transformers
C57.94-1982 (R2000), Recommended Practice for Installation, Application, Operation,
and Maintenance of Dry-Type General Purpose Distribution and Power
Transformers
C57.110-1998, Recommended Practice for Establishing Transformer Capability When
Supplying Nonsinusoidal Load Currents
C62.41-1991 (R1995), IEEE Recommended Practice on Surge Voltages in Low-Voltage
AC Power Circuits
C62.45-1992 (R1997), IEEE Guide on Surge T esting for Equipment Connected to Low-
Voltage AC Power Circuits
C62.48-1995, IEEE Guide on Interactions Between Power System Disturbances and
Surge-Protective Devices
C84.1-1995 (R2001), Electrical Power Systems and Equipment--Voltage Ratings (60
Hz)
Y32.9-1972 (R1989), Graphic Symbols for Electrical Wiring and Layout Diagrams Used
in Architecture and Building Construction
Electrical Generating Systems Association
Electrical Generating Systems Association (EGSA), On-Site Power Generation: A
Reference Book, 1993
100B-1997, Performance Standard for Engine Cranking Batteries Used with Engine
Generator Sets
A-4
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