Active Standard

IEEE 303-2023

IEEE Recommended Practice for Auxiliary Devices for Rotating Electrical Machines in Class I, Division 2 and Zone 2 Locations and Class II, Division 2 and Zone 22 Locations

This recommended practice applies to the application and installation procedures of auxiliary devices in or on electric rotating machines that are employed in hazardous locations classified as Class I, Division 2 and Zone 2 and Class II, Division 2 and Zone 22 under commonly used worldwide regulations. These regulations are: the National Electrical Code® (NEC®); the Canadian Electrical Code (CE Code); and combined practices of the International Electrotechnical Commission (IEC). Included is a list of source documents, definitions and nomenclature. Devices include terminal housings, heaters, surge protection, power factor correction capacitors, shaft bonding (shaft grounding), and enclosures. Special marking requirements are also discussed.

Sponsor Committee
IAS/PCI - Petroleum and Chemical Industry
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Status
Active Standard
PAR Approval
2020-02-13
Superseding
303-2004
Board Approval
2023-11-08
History
Published:
2024-02-21

Working Group Details

Society
IEEE Industry Applications Society
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Sponsor Committee
IAS/PCI - Petroleum and Chemical Industry
Learn More About IAS/PCI - Petroleum and Chemical Industry
Working Group
303_WG - Division 2 & Zone 2 Aux. Devices
IEEE Program Manager
Michael Kipness
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Working Group Chair
Arthur Neubauer

Other Activities From This Working Group

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303-2004

IEEE Recommended Practice for Auxiliary Devices for Rotating Electrical Machines in Class I, Division 2 and Zone 2 Locations

Revision of IEEE Std 303-1991 This recommended practice applies to the application and installation procedures of auxiliary devices in or on electric rotating machines that are employed in hazardous locations classified as Class I, Division 2 or Class I Zone 2 under commonly used worldwide regulations. These regulations are: the National Electrical Code (United States); the Canadian Electrical Code, Part 1 (Canada); and combined practices of the International Electrotechnical Commission (IEC), the European Committee for Electrotechnical Standardization (CENELEC), and Standards Australia / Standards New Zealand (AS/NZS). Included is a list of source documents, definitions and nomenclature. Devices include terminal housings, heaters, surge protection, power factor correction capacitors, shaft grounding, and enclosures. Special marking requirements are also discussed.

Learn More About 303-2004

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