Voices: Tactics and Practices
Tactics and Practices is a back-to-basics column written by Plant Services Chief Editor Mike Bacidore with contributing insight from industry experts.
As of March 9, general-purpose small electric motors with open drip-proof enclosures have to meet new Department of Energy efficiency requirements. The requirements apply to single-phase and polyphase motors built in a two-digit National Electrical Manufacturers Association frame and rated between 1/4 and 3 hp. Split-phase, shaded-pole and permanent-split capacitor motors don't qualify as general-purpose motors and thus aren't covered under the new rule.Read More
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