IEEE 841-2001 Petroleum and chemical industry - Severe duty Totally Enclosed Fan-Cooled (TEFC) - Squirrel cage induction motors, up to and including 370 kW (500 hp)
Covers mechanical and electrical design, electrical insulation systems, corrosion protection, and electrical and mechanical testing for severe-duty squirrel-cage polyphase induction motors for chemical industry applictions. Applies to high-efficiency, totally enclosed fan-cooled (TEFC), horizontal and vertical, single-speed, squirrel-cage polyphase induction motors, up to and including 370 kW (500 hp), in NEMA frame sizes 143T and larger, for petroleum, chemical, and other severe duty applications (commonly referred to as severe duty motors).
IEEE 841-2001 history
1970IEEE 841-2021 IEEE Standard for Petroleum and Chemical Industry--Premium-Efficiency, Severe-Duty, Totally Enclosed Squirrel Cage Induction Motors from 0.75 kW to 370 kW (1 hp to 500 hp)
2009IEEE 841-2009 Standard for petroleum and chemical industry - Premium-efficiency, severe-duty, Totally Enclosed Fan-Cooled (TEFC) squirrel cage induction motors - Up to and including 370 kW (500 hp)
2002IEEE 841/INT 1-2-2002 IEEE Standards Interpretation for IEEE Std 841™-1994 IEEE Standard for the Petroleum and Chemical Industry-Severe Duty Totally Enclosed Fan-Cooled (TEFC) Squirrel Cage Induction Motors-Up to and Including 500 hp
2001IEEE 841-2001 Petroleum and chemical industry - Severe duty Totally Enclosed Fan-Cooled (TEFC) - Squirrel cage induction motors, up to and including 370 kW (500 hp)
1994IEEE 841-1994 Petroleum and chemical industry - Severe duty Totally Enclosed Fan-Cooled (TEFC) squirrel-cage induction motors - Up to and including 500 hp
1986IEEE 841-1986 RECOMMENDED PRACTICE FOR CHEMICAL INDUSTRY SEVERE DUTY SQUIRREL-CAGE INDUCTION MOTORS - 600 V AND BELOW