ISA S12.1 : 1991
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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DEFINITIONS AND INFORMATION PERTAINING TO ELECTRICAL INSTRUMENTS IN HAZARDOUS (CLASSIFIED) LOCATIONS
03-12-2013
12-01-2013
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Superseded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 |
| ISA RP92.06.02 : 1999 | INSTALLATION, OPERATION, AND MAINTENANCE OF CHLORINE DETECTION INSTRUMENTS (0.5-30 PPM FULL SCALE) |
| ISA 92.02.01-1 : 1998 | PERFORMANCE REQUIREMENTS FOR CARBON MONOXIDE DETECTION INSTRUMENTS (50-1000 PPM FULL SCALE) |
| ISA 92.02.01-1 : 1998 : R2007 | PERFORMANCE REQUIREMENTS FOR CARBON MONOXIDE DETECTION INSTRUMENTS (50-1000 PPM FULL SCALE) |
| ISA RP92.03.02 : 1999 | INSTALLATION, OPERATION, AND MAINTENANCE OF AMMONIA DETECTION INSTRUMENTS (25-500 PPM - FULL SCALE) |
| ISA RP92.02.02-2 : 1998 | INSTALLATION, OPERATION, AND MAINTENANCE OF CARBON MONOXIDE DETECTION INSTRUMENTS (50-1000 PPM FULL SCALE) |
| ISA RP12.4 : 1996 | PRESSURIZED ENCLOSURES |
| ISA RP92.0.02-2 : 1998 | INSTALLATION, OPERATION, AND MAINTENANCE OF TOXIC GAS-DETECTION INSTRUMENTS: HYDROGEN SULFIDE |
| ISA TR12.2 : 1995 | INTRINSICALLY SAFE SYSTEM ASSESSMENT USING THE ENTITY CONCEPT |
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