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UL 923:7ED 2013-05

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Microwave Cooking Appliances
Available format(s)

Hardcopy

Superseded date

24-12-2021

Published date

01-05-2013

INTRODUCTION
1. Scope
2. Glossary
3. General
CONSTRUCTION
4. General
5. Frame and Enclosure
6. Accessibility of Live Parts
7. Protection Against Injury
8. Mechanical Assembly
9. Protection Against Corrosion
10. Interlocks
11. Interlock Monitors
12. Polymeric Materials
13. Supply Connections
14. Live Parts
15. Polarization
16. Internal Wiring
17. Heating Elements
18. Electrical Insulation
19. Thermal Insulation
20. Motors
21. Motor Overload Protection
22. Short-Circuit and Ground-Fault Protection
23. Thermostats
24. Thermal Cutoffs
25. Attachment-Plug Receptacles
26. Lampholders
27. Switches and Controls
28. Filters
29. Spacings
30. Grounding
31. Secondary Circuits
PERFORMANCE
32. General
33. Leakage Current Test
34. Microwave Radiation Emission Test
35. Power Input Test
36. Temperature Test
37. Surface Temperature Tests
38. Insulation Resistance and Leakage Current Test as a
     Result of Moisture
39. Dielectric Voltage-Withstand Test
40. Door Assembly Tests
41. Glass Control Panel Test
42. Interlock System Endurance Test
43. Interlock Monitor Circuit Test
44. Mechanical Endurance Test
45. Moisture Conditioning Test
46. Spill Test
47. Abnormal Operation Tests
48. Abnormal Operation Tests on Motors Used with Solid-
     State Controls
49 Abnormal Operation - Fire Isolation Test
50. Magnetically Operated Interlock Test
51. X-Radiation Test
52. Temperature Control Tests
53. Temperature Probe Test
54. Motor Switch Test
55. Interlock Malfunction Test
56. Salt Spray Corrosion Test
57. Cavity Fire Containment Test
58. Strength of Mounting Test
59. Tests on Motors Exposed to Grease or Cooking Vapors
MANUFACTURING AND PRODUCTION-LINE TESTS
60. Dielectric Voltage Withstand Test
61. Grounding Continuity Test
RATING
62. Details
MARKINGS
63. General
64. Visible After Installation
65. Visible to the User During Use
66. Visible During Installation and Examination
67. Instruction Manuals
68. Important Safety Instructions
69. Warning Markings and Instructions Concerning Micro-
     wave and X-Radiation Emission
70. Grounding Instructions
SELF-CLEANING OVENS
General
71. Scope
Construction
72. Materials
73. Oven Door Latch/Interlock Assembly
74. Seals and Gaskets
Performance
75. General
76. Temperature Test
77. Latch-Solenoid Temperature Test
78. Shorted Thermostat - Abnormal Test
79. Oven-Door Latch Endurance Test
80. Window Impact Tests
Fire and Explosion
81. General
82. Test Electrodes
83. Test Samples
84. Installation of Test Sample
85. Fire and Explosion Test Within Oven
86. Emission of Carbon Monoxide
87. Vent Gases and Vapors Test
88. Vertical Cool-Air-Mixing Duct Test
89. Self-Cleaning of Removable Companion Oven Panels
     Test
90. Elevated Interlock Operating Temperature Tests
Marking
91. Details
SUPPLEMENT SA - MICROWAVE COOKING APPLIANCES FOR MARINE
     USE
GENERAL
SA1. Scope
CONSTRUCTION
SA2. Mounting
SA3. Corrosion
SA4. Supply Connections
SA5. Internal Wiring
SA6. Electrical Connections
PERFORMANCE
SA7. General
SA8. Vibration Test
SA9. Shock Test
SA10. Salt Spray Corrosion Test
MARKINGS
SA11. Visible After Installation
SA12. Visible During Installation and Examination
APPENDIX A
Standards for Components

Describes household and commercial microwave cooking appliances operated in the Industrial, Scientific and Medical (ISM) bands of 915 +/-25 and 2450 +/-50 MHz, for use in ordinary locations in accordance with the National Electrical Code, NFPA 70, and rated not more than 600 V.

DevelopmentNote
NEW CHILD REV 8 2020 IS ADDED
DocumentType
Standard
Pages
0
ProductNote
NEW CHILD REV 8 2020 IS ADDED
PublisherName
Underwriters Laboratories
Status
Superseded

ASTM F 1360 : 2017 : REDLINE Standard Specification for Ovens, Microwave, Electric
NFPA 96 : 2017 VENTILATION CONTROL AND FIRE PROTECTION OF COMMERCIAL COOKING OPERATIONS
ICC 2009 INT. RESI.CODE & COMM.-I1 : 2009 2009 INTERNATIONAL RESIDENTIAL CODE & COMMENTARY - VOLUME 2: CHAPTERS 12 TO 44
CSA 1.1 : 2016 HOUSEHOLD COOKING GAS APPLIANCES
NFPA 1 : 2021 FIRE CODE
ICC IRC CODE AND COMMENTARY VOLUME 2 : 2015 IRC® Code and Commentary, Volume 2
UL 507:10ED 2017-11 Electric Fans
ICC IMC Code and Commentary : 2015 IMC® Code and Commentary
ICC 2012 INTERNATIONAL RESI. CODE : 2012 INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS
UL 858:16ED 2014-11 Household Electric Ranges
ANSI Z21.1 : 2016 HOUSEHOLD COOKING GAS APPLIANCES
NFPA 1 : 2018 FIRE CODE
ICC 2012 INTERNATIONAL MECH. CODE : 2012 INTERNATIONAL MECHANICAL CODE

UL 5085-3:1ED 2006-04 Low Voltage Transformers - Part 3: Class 2 and Class 3 Transformers
UL 858:16ED 2014-11 Household Electric Ranges
UL 4248-11:1ED 2007-02 Fuseholders - Part 11: Type C (Edison Base) and Type S Plug Fuse
UL 900:8ED 2015-04 Air Filter Units
UL 83:16ED 2017-07 Standard for Thermoplastic-Insulated Wires and Cables
UL 917:5ED 2006-11 Standard for Clock-Operated Switches
UL 4248-9:1ED 2007-02 Fuseholders - Part 9: Class K
UL 746A:6ED 2012-09 Polymeric Materials - Short Term Property Evaluations
UL 60730-1:5ED 2016-08 Automatic Electrical Controls - Part 1: General Requirements
UL 4248-6:1ED 2007-02 Fuseholders - Part 6: Class H
UL 4248-15:1ED 2007-02 Fuseholders - Part 15: Class T
UL 4248-4:1ED 2007-02 Fuseholders - Part 4: Class CC
UL 496:14ED 2017-09 Lampholders

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