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Description / Abstract:
This Practice describes the requirements for design,
construction, and testing for motors in accordance with IEC
requirements for single-speed, horizontal or vertical, polyphase
squirrel cage induction motors that are 1000 volts and below. This
Practice covers motors that are totally-enclosed fan-cooled (IC
411) type, premium efficiency IE3, air-cooled, with IP 54 degree of
protection for motors and auxiliaries, and with IP 55 degree of
protection for bearing housing and terminal boxes.
Purpose
This Practice provides requirements for manufacturing and
testing AC squirrel cage induction motors.