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About This Item

 

Full Description

This recommended practice provides guidelines for determining the degree and extent of Class I, Division 1 and Class I, Division 2 locations at petroleum facilities, for the selection and installation of electrical equipment. Basic definitions provided in the "National Electric Code" have been followed in developing this document which applies to the classification of locations for both temporarily and permanently installed electrical equipment. RP 500 is intended to be applied where there may be a risk of ignition due to the presence of flammable gas or vapor, mixed with air under normal atmospheric conditions
 

Document History

  1. API RP 500


    Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division I and Division 2, Third Edition

    • Most Recent
  2. API RP 500 (R2002)

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    Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division I and Division 2

    • Historical Version
  3. API RP 500C


    Classification of Locations for Electrical Installations at Pipeline Transportation Facilities

    • Historical Version
 

Amendments & Errata

  1. API 500 Errata

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    Errata - Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division I and Division 2