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IEEE 1349 2002

$65.54

IEEE Guide for Application of Electric Motors in Class I, Division 2 Hazardous (Classified) Locations

Published By Publication Date Number of Pages
IEEE 2002 78
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New IEEE Standard – Inactive – Superseded. This guide was developed to assist individuals, organizations, and suppliers with the application of motors in Class I, Division 2 locations, where flammable gases and vapors may occasionally be present. Three-phase and single-phase ac synchronous and induction electric motors, fractional through very large sizes, are covered in this guide. Primary emphasis is on the use of general-purpose enclosures and precautions against excessive surface temperatures and sparking of rotor bars and enclosure joints. Results of motor surface temperature tests and calculations performed by Working Group Member companies are documented in the guide. Guidance is included for maintaining the life-cycle integrity of motors in Class I, Division 2 locations. Existing codes and standards contain cautionary notes for general-purpose motor applications in Class I, Division 2 areas. Industry experience and established practices are documented for the application of general-purpose motors in Class I, Division 2 locations and guidance is given for applying motors in these locations. This guide is not a specification and is not intended for use as a specification for purchasing motors installed in Division 2 locations.

PDF Catalog

PDF Pages PDF Title
1 Cover
2 IEEE Guide for the Application of Electric Motors in Class I, Division 2 Hazardous (Classified) Locations
4 Credits
5 Introduction
Participants
7 Contents
10 IEEE Guide for the Application of Electric Motors in Class I, Division 2 Hazardous (Classified) Locations
1. Overview
1.1 Scope
11 1.2 Purpose
1.3 Background
12 1.4 Industry experience
2. References
13 3. Definitions, abbreviations, and acronyms
3.1 Definitions
15 3.2 Acronyms and abbreviations
4. Phenomenon of a motor as a possible ignition source
16 4.1 Ignition overview
4.2 Ignition components
17 4.3 Gas AIT and group designation
4.4 Gas ingress
19 5. Common applications
5.1 Common application conditions
20 5.2 Surface temperatures
21 5.3 Sparking
5.4 General equipment considerations
24 5.5 Application considerations for motors 1000V and below
25 5.6 Application considerations for motors above 1000 V
27 5.7 Application considerations for synchronous motors
29 6. Uncommon application considerations
30 6.1 High or low ambient temperature
6.3 Nonsinusoidal power or adjustable speed operations
6.2 High altitudes
32 6.4 Duty cycle other than continuous
6.5 Excessive starts
6.6 High inertia load
6.7 NEMA Design C or D motors
33 6.8 Voltage and frequency variation
6.9 Overload
34 6.10 Atmospheres with an AIT at or less than those of Table 1
6.11 Motor exposed surface temperature above Table 1 values or above Class B rise
35 6.12 Other considerations
36 7. Operation and maintenance considerations
7.1 Commissioning considerations
7.2 Maintenance considerations for existing motors in Class I, Division 2 locations
37 8. Motor surface temperature test methods
39 Annex Aā€”Bibliography
42 Annex Bā€”Regulations and standards for motors used in areas where flammable gases or vapors may be present
45 Annex Cā€”AIT and group designations for Class I materials
50 Annex Dā€”Motor enclosures types
53 Annex Eā€”Motor information tables
56 Annex Fā€”Multisection motor inspection procedure
57 Annex Gā€”Motor sparking considerations
61 Annex Hā€”Surface temperature study results
75 Annex Iā€”Surface temperature test methods
78 Annex Jā€”Event history
IEEE 1349 2002
$65.54