scope:

Inclusions. The requirements in this standard apply to 60-hertz polyphase induction motors intended for use in power generating stations, including the following

(1) Frame size larger than NEMA 440

(2) Squirrel-cage type

(3) Single speed or multispeed

(4) Horizontal or vertical construction

Exclusions. Excluded from the scope of this standard are:

(1) Additional specific features that may be required for application in nuclear-fueled power gene rating stations

(2) Additional specific features required in motors for use in locations involving hazardous (classified) locations.

(3) Starting motors for reversible synchronous generator/motor units for pumped storage installations

(4) Wound-rotor motors