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ISA S12.1 : 1991

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

DEFINITIONS AND INFORMATION PERTAINING TO ELECTRICAL INSTRUMENTS IN HAZARDOUS (CLASSIFIED) LOCATIONS
Superseded date

12-03-2013

Published date

01-12-2013

1. Purpose
2. Scope
3. Definitions
4. Area (location) classification
4.1 North American methods
4.2 European methods
4.3 Additional background information
5. Protection techniques for electrical apparatus in
     hazardous (classified) locations
5.1 Explosion confinement
5.2 Isolation
5.3 Energy release limitation
5.4 Other methods of protection
5.5 Summary of protection techniques
6. Wiring methods for hazardous (classified) locations
6.1 Conduit system
6.2 Cable systems
6.3 Comparison of the installation systems
6.4 Comparisons of wiring methods
7. Grounding and bonding practices
8. Maintenance practices
Appendices
A. Acronyms
B. References
C. Listing of worldwide codes, guides, and standards
D. Listing of worldwide installation requirements

Gives definitions and information on protection techniques, terminology, and the installation of electrical instruments in hazardous (classified) locations and provides an introduction and basic background to the ISA SP12, Electrical Safety, series of publications and committee activities. Gives general guidelines for the safe design, installation, and maintenance of electrical instrument systems using appropriate means to prevent ignition of flammable gases and vapors, flammable liquids, combustible dusts, or ignitable fibers or flyings.

DocumentType
Standard
PublisherName
International Society of Automation
Status
Superseded
SupersededBy
Supersedes

ISA RP92.04.02-2 : 1996 INSTALLATION, OPERATION, AND MAINTENANCE OF INSTRUMENTS USED TO DETECT OXYGEN-DEFICIENT/OXYGEN-ENRICHED ATMOSPHERES
API 670 : 2014 MACHINERY PROTECTION SYSTEMS

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