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API 505 : 1997

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS AT PETROLEUM FACILITIES CLASSIFIED AS CLASS I, ZONE 0, ZONE 1, AND ZONE 2

Available format(s)

Hardcopy , PDF

Superseded date

24-10-2018

Language(s)

English

Published date

01-01-2013

1 SCOPE
2 REFERENCES
3 ACRONYMS AND ABBREVIATED DEFINITIONS
4 BASIC CONDITIONS FOR A FIRE OR EXPLOSION
5 FLAMMABLE AND COMBUSTIBLE LIQUIDS, GASES,
   AND VAPORS
6 CLASSIFICATION CRITERIA
7 EXTENT OF A CLASSIFIED LOCATION
8 RECOMMENDATIONS FOR DETERMINING DEGREE
   AND EXTENT OF CLASSIFIED LOCATIONS - COMMON
   APPLICATIONS
9 RECOMMENDATIONS FOR DETERMINING DEGREE
   AND EXTENT OF CLASSIFIED LOCATIONS IN PETROLEUM
   REFINERIES
10 RECOMMENDATIONS FOR DETERMINING DEGREE
   AND EXTENT OF CLASSIFIED LOCATIONS AT DRILLING
   RIGS AND PRODUCTION FACILITIES ON LAND AND ON
   MARINE FIXED PLATFORMS
11 RECOMMENDATIONS FOR DETERMINING DEGREE AND
   EXTENT OF CLASSIFIED LOCATIONS ON MOBILE OFFSHORE
   DRILLING UNITS (MODUS)
12 RECOMMENDATIONS FOR DETERMINING DEGREE AND
   EXTENT OF CLASSIFIED LOCATIONS AT DRILLING RIGS
   AND PRODUCTION FACILITIES ON FLOATING PRODUCTION
   UNITS
13 RESERVED FOR FUTURE USE
14 RECOMMENDATIONS FOR DETERMINING DEGREE AND
   EXTENT OF CLASSIFIED LOCATIONS AT PETROLEUM
   PIPELINE TRANSPORTATION FACILITIES
APPENDIX A - SAMPLE CALCULATION TO ACHIEVE ADEQUATE
             VENTILATION OF AN ENCLOSED AREA BY NATURAL
             MEANS USING EQUATIONS 1 AND 2
APPENDIX B - CALCULATION OF MINIMUM AIR INTRODUCTION
             RATE TO ACHIEVE ADEQUATE VENTILATION USING
             FUGITIVE EMISSIONS
APPENDIX C - PREFERRED SYMBOLS FOR DENOTING CLASS I,
             ZONE 0, ZONE 1, AND ZONE 2 HAZARDOUS
             (CLASSIFIED) AREAS
APPENDIX D - INFORMATIVE ANNEX - AN ALTERNATE METHOD
             FOR AREA CLASSIFICATION
APPENDIX E - PROCEDURE FOR CLASSIFYING LOCATIONS
ANNEX F (INFORMATIVE) - ALTERNATE VENTILATION CRITERIA

Gives guidelines for classifying locations Class I, Zone 0, Zone 1, and Zone 2 locations at petroleum facilities for the selection and installation of electrical equipment.

DocumentType
Standard
Pages
154
PublisherName
American Petroleum Institute
Status
Superseded
SupersededBy
Supersedes

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BS EN ISO 13354:2014 Petroleum and natural gas industries. Drilling and production equipment. Shallow gas diverter equipment
API RP 11S3:1999(R2013) Recommended Practice for Electrical Submersible Pump Installations<br>
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C22.1-18 Canadian Electrical Code, Part I (24th Edition), Safety Standard for Electrical Installations
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CFR 33(PTS125-199) : JUL 2017 NAVIGATION AND NAVIGABLE WATERS
IEC 60079-10:2002 Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas
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API 500 : 2012 RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS AT PETROLEUM FACILITIES CLASSIFIED AS CLASS 1, DIVISION 1 AND DIVISION 2
IEC TR 60079-20:1996 Electrical apparatus for explosive gas atmospheres - Part 20: Data for flammable gases and vapours, relating to the use of electrical apparatus
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NFPA 70B : 2016 RECOMMENDED PRACTICE FOR ELECTRICAL EQUIPMENT MAINTENANCE
ISA RP12.24.01 : 1998 RECOMMENDED PRACTICE FOR CLASSIFICATIONS OF LOCATIONS FOR ELECTRICAL INSTALLATIONS CLASSIFIED AS CLASS I ZONE 0, ZONE 1, OR ZONE 2
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NFPA 496 : 2017 PURGED AND PRESSURIZED ENCLOSURES FOR ELECTRICAL EQUIPMENT
CFR 49(PTS186-199) : 0 TRANSPORTATION
API 4615 : 1994 EMISSION FACTORS FOR OIL AND GAS PRODUCTION OPERATIONS
ASHRAE HDBK FUNDAMENTALS : 2013 ASHRAE HANDBOOK - FUNDAMENTALS
IEC 60050-426:2008 International Electrotechnical Vocabulary (IEV) - Part 426: Equipment for explosive atmospheres
API 521 : 2014 PRESSURE-RELIEVING AND DEPRESSURING SYSTEMS
IEC 60079-11:2011 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
IEC 60079-3:1990 Electrical apparatus for explosive gas atmospheres - Part 3: Spark-test apparatus for intrinsically-safe circuits
ISA 12.13.01 : 2003 PERFORMANCE REQUIREMENTS FOR COMBUSTIBLE GAS DETECTORS
IEEE C2-2017 NATIONAL ELECTRICAL SAFETY CODE (NESC)(R)
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ISA RP12.13.02 : 2003 INSTALLATION, OPERATION, AND MAINTENANCE OF COMBUSTIBLE GAS DETECTION INSTRUMENTS
ISA S12.4 : 1970 INSTRUMENT PURGING FOR REDUCTION OF HAZARDOUS AREA CLASSIFICATION
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CFR 30(PTS200-699) : JUL 2017 MINERAL RESOURCES - DEPARTMENT OF THE INTERIOR
API 14G : 2007 RECOMMENDED PRACTICE FOR FIRE PREVENTION AND CONTROL ON FIXED OPEN-TYPE OFFSHORE PRODUCTION PLATFORMS
API 4322 : 1980 FUGITIVE HYDROCARBON EMISSIONS FROM PETROLEUM PRODUCTION OPERATIONS
API 2G : 1ED 74 SUPP 1 RECOMMENDED PRACTICE FOR PRODUCTION FACILITIES ON OFFSHORE STRUCTURES
NFPA 37 : 2018 INSTALLATION AND USE OF STATIONARY COMBUSTION ENGINES AND GAS TURBINES
IEC TR 60079-12:1978 Electrical apparatus for explosive gas atmospheres - Part 12:Classification of mixtures of gases of vapours with air accordingto their maximum experimental safe gaps and minimum ignitingcurrents
API 4589 : 1993 Fugitive Hydrocarbon Emissions from Oil and Gas Production Operations
ISA 51.1 : 1979 PROCESS INSTRUMENTATION TERMINOLOGY
IEC 60079-13:2017 Explosive atmospheres - Part 13: Equipment protection by pressurized room "p" and artificially ventilated room "v"
NFPA 497 : 2017 CLASSIFICATION OF FLAMMABLE LIQUIDS, GASES, OR VAPORS AND OF HAZARDOUS (CLASSIFIED) LOCATIONS FOR ELECTRICAL INSTALLATIONS IN CHEMICAL PROCESS AREAS
IEC 60079-4A:1970 Electrical apparatus for explosive gas atmospheres - Part 4: Method of test for ignition temperature - First supplement. *Note.-This supplement applies also to the second edition of 1975

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