Description: This standard is a basis for the establishment of performance, limited electrical and mechanical interchangeability, and safety requirements of equipment described; and for assistance in the proper selection of such equipment. This standard describes electrical, mechanical, and safety requirements of liquid immersed distribution and power transformers, and autotransformers and regulating transformers; single and polyphase, with voltage 601 V or higher in the highest voltage winding. Service conditions, rating data, construction, short-circuit characteristics, testing and calculations, and tolerances are all covered by the standard.
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