This Standard applies to three-phase cage induction motors with ratings from 0.73 kW andup to but not including 185 kW. The scope covers motors of rated voltages up to1100 V a.c.NOTE: This range includes motors with ratings of 1 hp and 1 CV/PS (French/German or metrichorsepower).This Standard specifies the minimum efficiency values that a motor shall meet, and also theminimum efficiency values that a motor shall meet in order to be designated ‘highefficiency’. Two methods of measurement are prescribed (Method A and Method B) foreach category; see Sections 2 and 3.Only one method need be applied.