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.
- Sponsor Committee
- IAS/PCI - Petroleum and Chemical Industry
Learn More - Status
- Inactive-Reserved Standard
- PAR Approval
- 2002-12-11
- Superseding
- 303-1991
- Board Approval
- 2004-06-24
- History
-
- ANSI Approved:
- 2004-12-16
- Published:
- 2004-12-17
- Reaffirmed:
- 2011-12-07
- Inactivated Date:
- 2022-03-24
Working Group Details
- Society
- IEEE Industry Applications Society
Learn More - Sponsor Committee
- IAS/PCI - Petroleum and Chemical Industry
Learn More - Working Group
-
303_WG - Division 2 & Zone 2 Aux. Devices
Learn More - IEEE Program Manager
- Ron Hotchkiss
Contact - Working Group Chair
- Arthur Neubauer
P303
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 is limited to auxiliary devices associated with rotating electrical machines operating in Class I Division 2 and Zone 2 or Class II Division 2 and Zone 22 areas, as classified under the practice of the National Fire Protections Association (NFPA) standard NFPA 70, National Electrical Code(R) (NEC(R)) and the Canadian Standards Association (CSA) standard CSA C22.1, Canadian Electrical Code (CE Code). This recommended practice is not an attempt to rewrite or otherwise supersede applicable sections or clauses of these noted documents or any other codes or ordinances. Rather, it is intended to serve as a supplement to existing codes that in this area may not be sufficiently specific to serve as a guide to good engineering practice.
No Active Standards
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards