Subcommittee Scope

Welcome to the home page for the CRE Subcommittee on Electrical Equipment (SOEE). The mission of the SOEE is to develop standards and recommended practices specific to the refining industry including:

  • RP 500 Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class 1, Division 1 and Division 2
  • RP 505 Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class 1, Zone 0, Zone1, and Zone 2
  • Std 540 Electrical Installations in Petroleum Processing Plants ​(this standard is in stabilized maintenance)​
  • Std. 541 Form-wound Squirrel Cage Induction Motors - 500 Horsepower and Larger
  • Std 546 Brushless Synchronous Machines - 500 kVA and Larger
  • Std 547 General​ Purpose Form-wound Squirrel Cage Induction Motors - 250 Horsepower through 3,000 Horsepower ​

The SOEE also works closely with other standards developing organizations (SDOs)​​, such as the Institute of Electrical and Electronics Engineers (IEEE) and the National Fire Protection Association (NFPA), and provides​​ technical comments to NFPA 70 National Electrical Code (NEC). The subcommittee analyzes technical issues, provides training and advice on relevant technical issues, and shares information, which is useful to the industry as a group.

This site provides information on upcoming meetings, minutes and presentations from recent meeting, and information on the status and balloting of standards maintained by the SOEE. This page displays public information while the SOEE Documents page​ stores committee member-only materials. ​

Those interested in participating in API standards committees can apply here​. Reach out to the API representative for additional information. ​​

Chairman:Mark Metzdorf, BP

Vice Chair: Gerard Ngo, Valero ​

 Ballots - Motors Group

 Ballot IDStatusResultsOpensClosesDescription
Committee ID : 30000226SOEE Motors Voting Group
5832ClosedIn Progress08/02/202209/14/2022API 541 6th Edition - Final Ballot
5912ClosedIn Progress10/04/202210/18/2022Reaffirmation Ballot for API 547 ed. 2, General-purpose Form-wound Squirrel Cage Induction Motors-250 Horsepower and Larger



The 2022 Fall SOEE Standards Meetings will be held on September 22-23 at the Sheraton Denver Downtown Hotel as part of the IEEE PCIC conference.For more information please visit the PCIC Standards Working Group page​ or reach out to the API representative. 

Committee members can view the agenda and additional meetings documents in the SOEE Documents page​​.

Folder: API 500 4th Edition Recirculation
10/24/2022 10:01
Antitrust Guide_Official.pdf
3/3/2022 1:59
API Antitrust Slide.pdf
3/3/2022 1:58
API Document Format and Style Manual_2020.pdf
3/3/2022 1:57
API Procedures for Standards Development-2022.pdf
4/7/2022 1:50
API Reverse Request For IP Permission Form.docx
3/3/2022 2:01
CRE Policy & Procedures_2021.pdf
3/3/2022 1:57
CRE SR3_March2021.docx
3/3/2022 2:00

 API Contact

American Petroleum Institute
200 Massachusetts Ave NW
Washington, DC 20005


Privacy Policy | Terms and Conditions | Legal Notices | Copyright - API. All rights reserved