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UL
UL 1203:5ED 2013-11

UL 1203:5ED 2013-11

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

ExplosionProof and Dust-IgnitionProof Electrical Equipment for Use in Hazardous (Classified) Locations

Available format(s)

Hardcopy

Superseded date

02-11-2021

Published date

22-11-2013

Publisher

Underwriters Laboratories

FOREWORD
INTRODUCTION
1. Scope
2. General
3. Enclosure Types
3A. Class 1, Zone, and Group Equivalency
PART I - EXPLOSION-PROOF EQUIPMENT
CONSTRUCTION
4. Enclosure Material
5. Enclosure Thickness
6. Joints in Enclosures
7. Shaft Openings
8. Holes in Enclosures
9. Drain and Breather Fittings in Enclosures
10. Supply Connections
11. Protection Against Corrosion
12. Materials Applied to Joint Surfaces
PERFORMANCE
13. Temperature Test
14. Explosion Tests
15. Hydrostatic Pressure Test
16. Leakage Test on Factory-Installed Conduit Seals
17. Rust-Resistance Test
18. Thermal-Shock Test on Glass Parts
19. Secureness Test on Conduit Hubs
20. Tests on Joint Gaskets
21. Electrical-Resistance Test
22. Accelerated Aging Test on Bushings
23. Strain-Relief Test
24. Rough-Usage Test
25. Drop Test
PART II - DUST-IGNITION-PROOF EQUIPMENT
CONSTRUCTION
26. Enclosure
27. Joints in Enclosures
28. Shaft Openings
29. Holes in Enclosures
30. Drain and Breather Fittings in Enclosures
31. Supply Connections
32. Protection Against Corrosion
33. Materials Applied to Joints Surfaces
PERFORMANCE
34. Dust-Penetration Test
35. Temperature Test with Dust Blanket
36. Polymeric Enclosure Test
37. Leakage Test on Factory-Installed Conduit Seals
38. Rust-Resistance Test
39. Thermal-Shock Test on Glass Parts
40. Secureness Test on Conduit Hubs
41. Tests on Joint Gaskets
42. Electrical-Resistance Test
43. Accelerated-Aging Test on Bushings
44. Strain-Relief Test
45. Rough-Usage Test
46. Drop Test
PART III - MANUFACTURING AND PRODUCTION TESTS
47. Bonding Test on Cord-Connected Equipment
48. Hydrostatic Pressure Test
PART IV - MARKING
49. Details

Specifies explosion-proof and dust-ignition-proof electrical equipment for installation and use in hazardous (classified) locations, Class I, Division 1, Groups A, B, C, and D, and Class II, Division 1, Groups E, F, and G, in accordance with the National Electrical Code, NFPA 70.

DevelopmentNote
Supersedes UL 698, UL 877, UL 886, UL 894, UL 1002 and UL 1010. (01/2012) NEW CHILD REV 7 IS ADDED NEW CHILD REV 8 2020 IS ADDED NEW CHILD REV 9 2021 IS ADDED New child REV 10 2022 is added.
DocumentType
Standard
Pages
0
ProductNote
NEW CHILD REV 7 IS ADDED NEW CHILD REV 8 2020 IS ADDED NEW CHILD REV 9 2021 IS ADDED New child REV 10 2022 is added.
PublisherName
Underwriters Laboratories
Status
Superseded
SupersededBy

IEEE 303-2004 IEEE Recommended Practice for Auxiliary Devices for Rotating Electrical Machines in Class I, Division 2 and Zone 2 Locations
CSA C22.2 No. 60079.1 : 2016 EXPLOSIVE ATMOSPHERES - PART 1: EQUIPMENT PROTECTION BY FLAMEPROOF ENCLOSURES 'D'
SAE AS 6479 : 2014 SPLICER, FUSION, FIBER OPTIC, AEROSPACE
UNE-EN 60079-1:2015 Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"
API 14FZ : 2013 RECOMMENDED PRACTICE FOR DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, ZONE 0, ZONE 1, AND ZONE 2 LOCATIONS
CSA PLUS 2203 : 2001 HAZARDOUS LOCATIONS - GUIDE FOR THE DESIGN, TESTING, CONSTRUCTION, AND INSTALLATION OF EQUIPMENT IN EXPLOSIVE ATMOSPHERES
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I.S. EN 60079-1:2014 EXPLOSIVE ATMOSPHERES - PART 1: EQUIPMENT PROTECTION BY FLAMEPROOF ENCLOSURES 'D'
API 14F : 2008 : R2013 DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, DIVISION 1 AND DIVISION 2 LOCATIONS
NFPA 70 : 2017 NATIONAL ELECTRICAL CODE
UL 1740:4ED 2018-01 Robots and Robotic Equipment
CSA C22.2 No. 145 : 2011 ELECTRIC MOTORS AND GENERATORS FOR USE IN HAZARDOUS (CLASSIFIED) LOCATIONS
UL 1682:5ED 2017-02 Plugs, Receptacles, and Cable Connectors of the Pin and Sleeve Type
UL 2208:3ED 2010-07 Standard for Solvent Distillation Units
CSA C22.2 No. 145 : 2011 : INC : UPD 1 : 2017 : R201500 ELECTRIC MOTORS AND GENERATORS FOR USE IN HAZARDOUS (CLASSIFIED) LOCATIONS
CSA C22.2 No. 145 : 2011 : R2015 ELECTRIC MOTORS AND GENERATORS FOR USE IN HAZARDOUS (CLASSIFIED) LOCATIONS
NASA KSC STD 164 : 1992 ENVIRONMENTAL TEST METHODS FOR GROUND SUPPORT EQUIPMENT, STANDARD FOR
UL 1480:6ED 2016-01 Speakers for Fire Alarm and Signaling Systems, Including Accessories
UL 515:2ED 2015-07 Standard for Electrical Resistance Trace Heating for Commercial Applications
UL 2251:4ED 2017-11 Plugs, Receptacles, and Couplers for Electric Vehicles
ASTM F 2363/F2363M : 2017 : REDLINE Standard Specification for Sewage and Graywater Flow Through Treatment Systems
CSA C22.2 No. 60079.1 : 2016 EXPLOSIVE ATMOSPHERES - PART 1: EQUIPMENT PROTECTION BY FLAMEPROOF ENCLOSURES 'D'
ANSI/AIHA/ASSP Z9.9-2010 PORTABLE VENTILATION SYSTEMS
C22.2 NO. 182.1-17 Plugs, receptacles, and cable connectors of the pin and sleeve type (Trinational standard with NMX-J-719-ANCE and UL 1682)
IEC 60079-1 REDLINE : 7ED 2014 EXPLOSIVE ATMOSPHERES - PART 1: EQUIPMENT PROTECTION BY FLAMEPROOF ENCLOSURES 'D'
API 14F:2008 DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, DIVISION 1 AND DIVISION 2 LOCATIONS
CSA C22.2 No. 282 : 2013 PLUGS, RECEPTACLES, AND COUPLERS FOR ELECTRIC VEHICLES
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13/30286778 DC : 0 BS EN 60079-1 - EXPLOSIVE ATMOSPHERES - PART 1: EQUIPMENT PROTECTION BY FLAMEPROOF ENCLOSURES 'D'
EN 60079-1:2014 Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"

UL 50:13ED 2015-10 Enclosures for Electrical Equipment, Non-Environmental Considerations
UL 746A:6ED 2012-09 Polymeric Materials - Short Term Property Evaluations
UL 429:7ED 2013-11 Electrically Operated Valves

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