Inconsistencies in Electric Motor Certification Requirements
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The Final Rule on certification requirements for induction motors issued by the Department of Energy contains different assumptions for the compliance and the enforcement procedures. These differences may yield unexpected results under certain conditions. For example, at times, the enforcement procedure can support a higher nameplate rating for a motor lot than would be possible by an appropriate application of the compliance procedure and vice versa. This paper examines, in detail, the nature of the problem and gives several examples where the enforcement plan fails to achieve its intended purpose.