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Dictionary of Electrical Engineering

Commonly used terms in the Electrical industry.

lineman
utility employee working on primary facilities, distribution class equipment, as opposed to customer service level facilities.
National Electrical Manufacturers Association (NEMA)
an electrical trade association that establishes standards for electrical equipment. In the case of electric motors, NEMA establishes standard frame sizes, starting torque, starting current, and other quantities for a given horsepower machine.
NEMA

See National Electrical Manufacturers Association
NEMA code letter
the nameplate letter designation used to indicate the input kilowatt-amp rating of a motor under locked-rotor, or starting conditions.
NEMA size
a standard-size device, such as a motor controller. The NEMA size establishes the rating of the device.
See National Electrical Manufacturers Association
NEMA type
for induction motors NEMA establishes five types of induction motors (A, B, C, D, and E) that have different torque-speed characteristics to account for various types of loads.