Active Standard

IEEE 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)

This standard applies to premium-efficiency totally enclosed fan-cooled (TEFC) and totally enclosed nonventilated (TENV), horizontal and vertical, single-speed, squirrel cage polyphase induction motors, 0.75 kW to 370 kW (1 hp to 500 hp), and up to 4000 V nominal, in National Electrical Manufacturers Association (NEMA) frame sizes 143T and larger, for petroleum, chemical, and other severe-duty applications (commonly referred to as premium-efficiency severe-duty motors). Excluded from the scope of this standard are motors with sleeve bearings and additional specific features required for explosion-proof motors.

Standards Committee
IAS/PCI - Petroleum and Chemical Industry
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Status
Active Standard
PAR Approval
2020-02-13
Superseding
841-2009
Board Approval
2021-03-25
History
Published:
2021-05-28

Working Group Details

Society
IEEE Industry Applications Society
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Standards Committee
IAS/PCI - Petroleum and Chemical Industry
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Working Group
841_WG - Totally Enclosed Fan-Cooled (TEFC) Squirrel Cage Induction Motors Working Group
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IEEE Program Manager
Ron Hotchkiss
Contact
Working Group Chair
Donald Dunn

Other Activities From This Working Group

Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.


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Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.


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These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.


841-2001

IEEE Standard for Petroleum and Chemical Industry - Severe Duty Totally Enclosed Fan-Cooled (TEFC) Squirrel Cage Induction Motors - Up to and Including 370 kW (500 hp)

This standard applies to high-efficiency TEFC, horizontal and vertical, single-speed, squirrel cage polyphase induction motors up to and including 500 hp, in NEMA frame sizes 143T and larger, for petroleum, chemical, and other severe duty applications (commonly referred to as severe duty motors). Excluded from the scope of this standard are motors with sleeve bearings and additional specific features required for explosion-proof motors.

Learn More

841-2009

IEEE 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)

This standard applies to premium efficiency totally enclosed fan-cooled (TEFC), horizontal and vertical, single-speed, squirrel cage polyphase induction motors, up to and including 370 kW (500 hp), and 4000 volts in National Electrical Manufacturers Association (NEMA) frame sizes 143T and larger, for petroleum, chemical, and other severe duty applications (commonly referred to as premium efficiency severe duty motors). Excluded from the scope of this standard are motors with sleeve bearings and additional specific features required for explosion-proof motors.

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These standards have been removed from active status through a ballot where the standard is made inactive as a consensus decision of a balloting group.


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These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.


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