chapter  24
United States Power Transformer Equipment Standards and Processes
Pages 22

The U.S. uses a voluntary process for the development of nationally recognized power transformer

equipment standards. This chapter describes the U.S. standards accreditation process and provides flow

charts to show how accredited standards are approved. With the International Electrotechnical Com-

mittee (IEC) taking on increased importance, the interaction of the U.S. technical experts with IEC is

also described. Finally, relevant power transformer documents are listed for the key power transformer

equipment standards that guide the U.S. industry.