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API RP 505 : 2025

Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Zone 0, Zone 1, and Zone 2

Standard Details

The purpose of this recommended practice (RP) is to provide guidelines for classifying locations Zone 0, Zone 1, and Zone 2 at petroleum facilities for the selection and installation of electrical equipment. Basic definitions given in the 2023 edition of NFPA 70, the National Electrical Code (NEC), have been followed in developing this RP. This publication is only a guide and requires the application of sound engineering judgment

General Information

Status : ACTIVE
Standard Type: Main
Document No: API RP 505 : 2025
Document Year: 2025
Pages: 192
Edition: 3
  • Section Volume:
  • 08 Refining

Life Cycle

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ACTIVE
API RP 505 : 2025
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