ISA 12.04.01 : 2003

Name: ISA 12.04.01 : 2003
Brand: ISA

Superseded

View Superseded by

ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - PART 2: PRESSURIZED ENCLOSURES "P"

Available format(s)

Hardcopy

Superseded date

27-08-2010

Language(s)

English

Published date

01-01-2003

Publisher

International Society of Automation

1 Scope
2 References
3 Terms and definitions
4 Protection types
5 Constructional requirements for pressurized enclosures
6 Temperature limits
7 Safety provisions and safety devices (except for static
   pressurization)
8 Safety provisions and safety devices for static
   pressurization
9 Supply of protective gas
10 Pressurized apparatus with an internal source of release
11 Release conditions
12 Design requirements for the containment system
13 Protective gas and pressurizing techniques
14 Ignition-capable apparatus
15 Internal hot surfaces
16 Type verification and tests
17 Routine tests
18 Marking
19 Instructions
Annex A (normative) - Purging and dilution tests
Annex B (informative) - Examples of functional sequence
        diagram
Annex C (informative) - Examples of the changes in pressure
        in ducts and enclosures
Annex D (informative) - Information to be provided to the
        user
Annex E (normative) - Classification of the type of release
        within enclosures
Annex F (informative) - Examples for the use of the dilution
        area concept
Annex G (normative) - Infallibility test for containment
        system
Annex H (Informative) - Introduction of an alternative risk
        assessment method encompassing "equipment protection
        levels" for Ex equipment
Annex I (Informative) - US conversion factors
Annex J (Informative) - United States major deviations

Specifies the specific requirements for the construction and testing of electrical apparatus with pressurized enclosures, of type of protection "p", intended for use in hazardous (classified) locations defined as Class I, Zone 1 or Zone 2 by the National Electrical Code (NEC[R]), ANSI/NFPA 70. Also describes requirements for pressurized enclosures containing a limited release of a flammable substance.

Committee	SP12
DevelopmentNote	Redesignated as ISA 60079-2. (07/2012)
DocumentType	Standard
Pages	70
PublisherName	International Society of Automation
Status	Superseded
SupersededBy	ISA 60079-2 : 2010(R2015)

API 14F : 2008 : R2013	DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, DIVISION 1 AND DIVISION 2 LOCATIONS
API 14F:2008	DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, DIVISION 1 AND DIVISION 2 LOCATIONS
API 14F REDLINE : 2008	DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, DIVISION 1 AND DIVISION 2 LOCATIONS

IEC 60050-151:2001	International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
IEC 60050-426:2008	International Electrotechnical Vocabulary (IEV) - Part 426: Equipment for explosive atmospheres
ISA 60079-0 : 2005	EXPLOSIVE ATMOSPHERES - PART 0: EQUIPMENT - GENERAL REQUIREMENTS