This Standards Publication defines minimum mechanical and electrical construction and performance requirements applying to the following arc welding power sources: 1. Single phase transformer or transformer-rectifier; 2. Polyphase transformer or transformer-rectifier; 3. DC generator; 4. AC generator or ac generator with rectifier; and 5. Associated electrical attachments.
EW 1-1988由NEMA - National Electrical Manufacturers Association 发布于 1988-01-01,并于 2005-03-10 实施。
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