ISA TR12.12.04 : 2011
Current
The latest, up-to-date edition.
ELECTRICAL EQUIPMENT IN A CLASS 1, DIVISION 2/ZONE 2 HAZARDOUS LOCATION
01-01-2011
1 Introduction
2 Hazardous locations
3 The nonincendive equipment concept
4 Nonincendive and non-sparking terminology
5 Related terminology
6 General design requirements
7 Field wiring
8 Maintenance
9 References
ANSI/ISA-TR12.12.04-2011, Electrical Equipment in a Class I, Division 2/Zone 2 Hazardous Location, explains how electrical equipment can be safely used in hazardous environments where flammable gases, vapors or dusts might occasionally be present. This technical report offers guidance on designing, installing and wiring electrical equipment intended for use in Class I, Division 2 or Zone 2 hazardous areas. It clarifies key terminology related to nonincendive and non-sparking equipment, outlines essential safety concepts and details protection techniques to reduce ignition risks during normal operation. It also addresses compliance with relevant standards and codes, including wiring methods and maintenance considerations, aligning practices with recognized industry standards and supporting safer operations in environments with explosion hazards.
| DevelopmentNote |
Supersedes ISA TR12.06.01. (09/2011)
|
| DocumentType |
Technical Report
|
| PublisherName |
International Society of Automation
|
| Status |
Current
|
| Supersedes |
| C22.1-15 PACKAGE | Consists of C22.1-15, Canadian electrical code, part I (23rd edition), safety standard for electrical installations; C22.1HB-15, Canadian electrical code handbook - an explanation of rules of the Canadian electrical code, part I and the 2015 Electrical quick reference |
| C22.1HB-18 | Canadian Electrical Code Handbook - An Explanation of the Rules of the Canadian Electrical Code, Part I |