NEMA ST 20:1992 (R1997)被替代
Dry Type Transformers For General Applications
出版：National Electrical Manufacturers Association
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基本信息
标准编号： NEMA ST 20:1992 (R1997)
发布时间：1992/1/1 0:00:00
标准类别：Standard
出版单位：National Electrical Manufacturers Association
标准页数：74
标准简介
Describes single and polyphase dry type transformers (including auto transformers and noncurrent limiting reactors) which supply energy to power, heating and lighting circuits installed and used following National Electrical Code. For commercial, institutional and industrial use in nonhazardous locations. Includes ratings. Coverage includes voltage ranges, coil insulation, flexible cords, capacitors, nameplates, field connections, audible soud levels, terminal markings, enclosure compression test, parallel operation, and personnel and public safety. Also contains detailed tables and diagrams.
替代本标准的新标准
