To consider the addition of general purpose transformers 600 volts and below to C57.12.01. NEMA standard St-20-1992 and UL-1561 reference C57.12.01 in their respective standards.
To consider the addition of general purpose transformers 600 volts and below to C57.12.01.
Revision Standard – Superseded. Superseded by IEEE Std C57.12.01-2005 Electrical, mechanical, and safety requirements of ventilated, nonventilated, and sealed dry-type distribution and power transformers or autotransformers, single and polyphase, with a voltage of 601 V or higher in the highest voltage winding, are described. Information that can be used as a basis for the establishment of performance, interchangeability, and safety requirements of equipment described, and for assistance in the proper selection of such equipment, is given.
To consider the addition of general purpose transformers 600 volts and below to C57.12.01.
Revision Standard – Superseded. Superseded by IEEE Std C57.12.01-2005 Electrical, mechanical, and safety requirements of ventilated, nonventilated, and sealed dry-type distribution and power transformers or autotransformers, single and polyphase, with a voltage of 601 V or higher in the highest voltage winding, are described. Information that can be used as a basis for the establishment of performance, interchangeability, and safety requirements of equipment described, and for assistance in the proper selection of such equipment, is given.
