IEEE 1349-2021
IEEE Guide for the Application of Electric Machines in Zone 2 and Class I, Division 2 Hazardous (Classified) Locations - Redline
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- Language: English
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- Language: English
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- Updates: Included
About This Item
IEEE 1349-2021 is a technical guide for applying electric machines in Zone 2 and Class I, Division 2 hazardous (classified) locations, with a redline format that highlights changes to the document. It is intended to support safer selection, installation, and use of motors and related equipment where flammable gases or vapors may be present under abnormal conditions. For engineers and specifiers, IEEE 1349-2021 helps align machine design and application practices with hazardous-area requirements.
About IEEE 1349-2021
This standard focuses on the practical application of electric machines in locations classified for limited hazardous exposure, especially Zone 2 and Class I, Division 2 areas. The guide is relevant to components, circuits, devices, and systems that must operate with controlled ignition risk and appropriate protection measures. As a redline edition, IEEE 1349-2021 can be especially useful when reviewing revisions, comparing requirements, or updating internal engineering criteria for hazardous-location equipment.
Where is IEEE 1349-2021 used?
IEEE 1349-2021 is commonly used in industrial installations where electric machines may be placed near process equipment, pumping systems, material handling equipment, or other machinery in classified areas. It is relevant to facilities that need careful application of motors, drives, and related electrical assemblies in environments with intermittent or abnormal presence of flammable atmospheres. The standard supports engineering review, equipment selection, and documentation for hazardous-location compliance.
Importance in practice
In practice, this guide helps reduce risk by giving a structured basis for deciding how electric machines should be applied in classified locations. It can support compliance efforts, procurement reviews, and design checks by clarifying expectations for installation and safe operation. Using IEEE 1349-2021 may also improve consistency between engineering teams and maintenance personnel, especially when evaluating whether a machine is suitable for Zone 2 or Class I, Division 2 service.
- Zone 2 and Class I, Division 2 application guidance
- Electric machines and related equipment
- Hazardous-location safety and compliance review
- Redline format for change comparison
- Publication Date: 2021
- Standard Status: Active
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Fields, Waves and Electromagnetics; Power, Energy and Industry Applications
- Official IEEE: Doi link
- New Version Available: 1349 (2023)
- This Version: 1349 (2021)
- Previous Version: 1349 (2011)
- Previous Version: 1349 (2002)
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