SECTION 16273

b. National Electrical Manufacturers Association (NEMA): 1) ST 20-1992 (R1997) Dry Type Transformers for General Applications. 2) TP1-1996 Guide for Determining Energy Efficiency for Distribution Transformers. 3) TR1-1993, Transformers, Regulators and Reactors. c. American National Standards Institute (ANSI): ................
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