UL 250-1993 UL Standard for Safety Household Refrigerators and Freezers (Tenth Edition Reprint with revisions through and including February 22 2013)《家用冰箱和冷冻柜》.pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 250 Household Refrigerators and FreezersUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F

2、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Household Refrigerators and Freezers, UL 250 Tenth Edition, Dated November 1, 1993 Summary of Topics Revisions to the Tenth Edition of UL 250 are being issued to incorporate an effective date for the following

3、clauses and table originally revised on December 7, 2012. Addition of ame spread/radiant panel test for very thin doors and cabinets and clarication to applicability of current requirement Clauses 4.8.1.5, 4.8.1.5A, and 9.9.1; Table 4.3 Text that has been changed in any manner or impacted by ULs ele

4、ctronic publishing system is marked with a vertical line in the margin. The revised requirements are substantially in accordance with Proposal(s) on this subject dated May 4, 2012 and September 20, 2012. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system

5、, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability o

6、r tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL re

7、presentative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harm

8、less from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effe

9、ct, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the preface. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by

10、a SUPERSEDED REQUIREMENTS notice. The following table lists the future effective dates with the corresponding reference. FEBRUARY 22, 2013 UL 250 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Future Effective Date Reference September 30

11、, 2014 Paragraphs 4.8.1.5, 4.8.1.5A, 9.9.1, Table 4.3 FEBRUARY 22, 2013 UL 250 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Household Refrigerators and Freezers November 1, 1993 (Title Page Reprinted: February 22, 2013) CSA Group CAN/C

12、SA-C22.2 No. 63-93 Fourth Edition Underwriters Laboratories Inc. UL 250 Tenth EditionUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Canadian Standards Association (operating a

13、s “CSA Group”) and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to CSA Group or UL at anytime. Revisions to this standard will be made only after processing according to the standards development procedures of CSA Group and UL.

14、 CSA Group and UL will issue revisions to this standard by means of a new edition or revised or additional pages bearing their date of issue. The Department of Defense (DoD) has adopted UL 250 on March 23, 1976. The publication of revised pages or a new edition of this Standard will not invalidate t

15、he DoD adoption. ISSN 0317-5669 Copyright 1993 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. Copyright 2013 Underwriters Laboratories Inc.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTI

16、ON OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .6 1 Scope .9 2 Denitions 9 3 General .11 3.1 Components 11 3.2 Units of measurement 12 3.3 Undated references 12 4 Construction .12 4.1 General 12 4.2 Enclosures .13 4.3 Mechanical protection 13 4.4 Electrical protection 15 4.5 Assembly

17、 .16A 4.6 Accessories 18 4.7 Latch-release mechanism 19 4.8 Polymeric materials application 20 4.9 Field supply connections 22A 4.10 Wiring and wiring methods 31 4.11 Secondary circuits 36 4.12 Separation of circuits .37 5 Electrical Components 38 5.1 Capacitor .38 5.2 Current-carrying parts 39 5.3

18、Defrost heaters .39 5.4 Guarding of lamps .40 5.5 Incandescent lighting systems 41 5.6 Insulating material .41 5.7 Motors and motor overload protection 42 5.8 Switches and controllers 44A 5.9 Transformers, power converters, and power inverters 46 6 Electrical Spacings .46 6.1 Line-voltage circuits 4

19、6 6.2 Extra-low voltage (Class 2) circuits 48 7 Refrigeration System 48A 7.1 Refrigerant 48A 7.2 Refrigerant tubing and ttings 48A 7.3 Refrigerant-containing parts .50 7.4 Pressure relief 50 8 Performance 50 8.1 Instrumentation .50 8.1.2 Pressure measurements 51 8.2 Test voltage and frequency .51 8.

20、3 Leakage current test cord-connected refrigerators .52 8.4 Component washing test .55 8.5 Input test .56 8.6 Temperature and pressure test 56 8.7 Starting test 61 8.8 Dielectric voltage-withstand test .61 8.9 Defrost test .62 DECEMBER 7, 2012 CAN/CSA-C22.2 NO. 63-93 UL 250 3UL COPYRIGHTED MATERIAL

21、NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 8.10 Defrost heater burnout test 63 8.11 Condenser fan motor failure test .63 8.12 Overow test 64 8.13 Spill test .64 8.14 Stability test .64 8.15 Static load test cabinets .65 8.16 Strain relief test 66 8.17 Overvolt

22、age and undervoltage tests 67 8.18 Limited short circuit test .67 8.19 Current overload test bonding conductors and connections 68 8.20 Defrost heater control tests 68 8.21 Insulation resistance test 69 8.22 Accelerated aging test electric heaters 69 8.23 Reliability test heater terminations 70 8.24

23、 Strength tests pressure containing components 70 8.25 Shelf strength test 72 8.26 Component restraint test 73 8.27 Glass strength test .73 8.28 Door latch release test 73 8.29 Door hinge strength test .74 8.30 Impact test .74A 9 Polymeric Materials Performance 75 9.1 Electrical enclosure ammability

24、 .75 9.2 Vertical burning test 5VA, 5VB, materials .76 9.3 Vertical burning test V-0, V-1, or V-2 solid materials .76 9.4 Horizontal burning test HB materials .76 9.5 Horizontal burning test HBF, HF-1, or HF-2 foamed materials .76A 9.6 Mold stress-relief test .76A 9.7 Fastener strength test 76B 9.8

25、Adhesive test 76B 9.9 Flame spread test .77 9.10 Volume resistivity test .77 9.11 High-current arc ignition test .78 9.12 Hot wire ignition test 78 9.13 Burnout test impedance protected motors .78 9.14 Electrical disturbance test .79 9.15 Grounding continuity test 79 9.16 Distortion test 81 9.17 Hea

26、ting test condensate wiring .81 10 Manufacturing and Production Tests 82 10.1 Pressure tests .82 10.2 Production line dielectric voltage-withstand tests .83 10.3 Production line grounding continuity test .84A 11 Marking 84A 11.1 General 84A 11.2 Installation and operating instructions .87 DECEMBER 7

27、, 2012 CAN/CSA-C22.2 NO. 63-93 UL 250 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SUPPLEMENT SA - REQUIREMENTS FOR REFRIGERATORS AND FREEZERS EMPLOYING A FLAMMABLE REFRIGERANT IN THE REFRIGERATING SYSTEM SA1 Scope SA1 SA2 Denitions SA1

28、SA3 General SA2 SA4 CONSTRUCTION .SA3 SA4.1 General SA3 SA4.2 Valves/Fittings SA3 SA4.3 Resistance to Corrosion SA4 SA5 PERFORMANCE SA4 SA5.1 Leakage Test .SA4 SA5.2 Ignition test .SA6 SA5.3 Temperature test SA7 SA5.4 Scratch test SA7 SA6 MARKING AND INSTALLATION AND OPERATING INSTRUCTIONS .SA9 SA6.

29、1 Marking SA9 SA6.2 Installation and operating instructions .SA10 Appendix A Standards for Components A1 Component Standards A1 A2 Other Standards .A6 Appendix B Marking Translations AUGUST 25, 2000 CAN/CSA-C22.2 NO. 63-93 UL 250 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DI

30、STRIBUTION WITHOUT PERMISSION FROM UL Preface This is the common UL and CSA Group Standard for Household Refrigerators and Freezers. It is the Fourth edition of CAN/CSA-C22.2 No. 63 Household Refrigerators and Freezers and the tenth edition of UL 250, Household Refrigerators and Freezers. This commo

31、n Standard was prepared by CSA Group and Underwriters Laboratories Inc., and the appliance manufacturing industry. The efforts and support of the Canadian Appliance Manufacturers Association (CAMA) and the Association of Home Appliance Manufacturers (AHAM) are gratefully acknowledged. This Standard

32、is considered suitable for use for conformity assessment within the stated scope of the Standard. This Standard was reviewed by the CSA Subcommittee of the Technical Committee on Consumer and Commercial Products under the jurisdiction of the CSA Strategic Steering Committee on Requirements for Elect

33、rical Safety, and has been formally approved by the CSA Technical Committee. Note: Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular

34、purpose. CSA Group Effective Date The effective date for CSA Group will be announced through CSA Informs or a CSA Group certication notice. This Standard is subject to periodic review, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change,

35、 please send the following information to inquirescsagroup.org and include Proposal for change in the subject line: Standard designation (number); relevant clause, table, and/or gure number; wording of the proposed change; and rationale for the change. To purchase CSA Group Standards and related pub

36、lications, visit CSA Groups Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. UL Effective Date As of February 22, 2013 all products Listed or Recognized by UL must comply with the requirements in this Standard except for the Clauses in the following list which have an ef

37、fective date of September 30, 2014. Clauses 4.8.1.5, 4.8.1.5A, 9.9.1 and Table 4.3. Between February 22, 2013 and September 30, 2014 for Clauses 4.8.1.5, 4.8.1.5A, 9.9.1 and Table 4.3, new product submittals to UL may be evaluated under all requirements in this Standard or, if requested in writing,

38、evaluated under presently effective requirements only. The presently effected requirements are contained in this Tenth Edition. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, o

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43、 MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Household Refrigerators and Freezers 1 Scope 1.1 This Standard applies to self-contained household refrigerators and freezers designed to be installed and used in residential occupancies in accordance with t

44、he Canadian Electrical Code, Part I, CSA Standard C22.2, and the National Electrical Code, ANSI/NFPA 70. 1.2 These requirements apply to household refrigerators and freezers intended for connection to 15 or 20 A, 100 to 140 V or 15 A, 200 to 250 V, single phase, alternating-current (ac) circuits; an

45、d combination ac/dc circuits or direct-current (dc) circuits where the dc voltage does not exceed 30 V. 1.3 The terms appliance , refrigerator , product , equipment , and unit are used interchangeably and refer to all household refrigerators, combination refrigerator-freezers, freezers, and refriger

46、ated kitchen units or any part thereof covered by this Standard unless specically noted otherwise. 1.4 The equipment is air-cooled employing hermetic refrigerant motor-compressors or is of the absorption type employing electricity as a heat source. These requirements apply to (a) freestanding, wall-

47、hung, recessed, and built-in refrigerators and freezers; (b) refrigerators and freezers for use in recreational vehicles; (c) refrigerated kitchen units; and (d) accessories. 1.5 A product that contains features, characteristics, components, materials, or systems new or different from those in use w

48、hen the Standard was developed, and that involves a risk of re, electric shock, or injury to persons, shall be evaluated using the appropriate additional component and end-product requirements as determined necessary to maintain the level of safety for the user of the product as originally anticipat

49、ed by the intent of this Standard. 2 Denitions 2.1 For the purpose of this Standard, the following denitions apply. 2.2 ABSORPTION TYPE REFRIGERATOR A refrigerator in which electricity is used as a heat source. 2.3 ACCESSORY An optional electrical device, such as an ice maker, intended for installation in or connection to a refrigerator for the purpose of modifying or supplementing the functions of the refri