1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 60730-2-4 Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Thermal Motor Protectors for Motor-Compressors of Hermetic and Semi-Hermetic TypeUL
2、 COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Automatic Electrical Controls for Household and Similar Use; P
3、art 2: Particular Requirements for Thermal Motor Protectors for Motor-Compressors of Hermetic and Semi-Hermetic Type, UL 60730-2-4 First Edition, Dated January 17, 2003 Summary of Topics These revisions are being issued to: 1) Add a national difference to the Heat, Fire and Tracking section, Section
4、 21, to clarify that it is applicable only to non-metallic and insulating materials which are outside the motor-compressor housing. 2) Reect the established effective date of UL 60730-2-4. AS OF OCTOBER 19, 2018, THE TWELFTH EDITION OF UL 873 WILL BE WITHDRAWN AND WILL BE REPLACED BY THIS STANDARD.
5、Text that has been changed in any manner or impacted by ULs electronic 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 November 27, 2013 and February 25, 2014. Although every page is being
6、 redated, the only changes being made are to the UL Title Page, Preface, Foreward, National Difference page and to Section 21. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopyin
7、g, 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 or tness for any purpose. In no event will UL be liable for any special, incid
8、ental, 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 representative has been advised of the possibility of such damage. In no event
9、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 harmless from and against any loss, expense, liability, damage, claim, or judgmen
10、t (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 effect, except for those paragraphs, sections, tables, gures, and/or other elemen
11、ts 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 a SUPERSEDED REQUIREMENTS notice. The following table lists the future effect
12、ive dates with the corresponding reference. MAY 28, 2014 UL 60730-2-4 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Future Effective Date Reference October 19, 2018 Entire 1st Edition MAY 28, 2014 UL 60730-2-4 tr2UL COPYRIGHTED MATERIAL
13、 NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 17, 2003 (Title Page Reprinted: May 28, 2014) 1 UL 60730-2-4 Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Thermal Motor Protectors for Motor- C
14、ompressors of Hermetic and Semi-Hermetic Type Prior to the rst edition of UL 60730-2-4, the requirements for the products covered by this Standard were included in UL 8730-2-4. First Edition January 17, 2003 This UL Standard for Safety consists of the First Edition including revisions through May 28
15、, 2014. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a print
16、ed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FUR
17、THER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 28, 2014 UL 60730-2-4 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface (UL) 5 Foreword (UL) 6 NATIONAL DIFFERENCES .7 FOREWORD 8 1 Scope a
18、nd normative references .11 1.5 Normative references 12 2 Denitions 12 2.6 Denitions of type of AUTOMATIC ACTION of a control according to test procedures .13 2.13 Miscellaneous denitions 13 3 General requirement .13 4 General notes on tests .13 5 Rating 13 6 Classication 13 6.4 According to feature
19、s of AUTOMATIC ACTION .13 7 Information 15 8 Protection against electric shock .15 9 Provision for protective earthing .15 10 Terminals and TERMINATIONS .15 10.2 Terminals and TERMINATIONS for INTERNAL CONDUCTORS 16 11 Constructional requirements 16 11.3.4 SETTING BY THE MANUFACTURER .16 11.4 Action
20、s 16 12 Moisture resistance .16 12.2 Protection against humid conditions: 17 13 Electric strength and insulation resistance .17 14 Heating 17 15 MANUFACTURING DEVIATION and DRIFT 17 16 Environmental stress 17 17 Endurance .17 17.1 Limited short-circuit capability for thermal protectors classied unde
21、r Sub-clause 6.101 .18 18 Mechanical strength .20 19 Threaded parts and connections 21 20 CREEPAGE DISTANCES, CLEARANCES and distances through solid insulation 21 21 Resistance to heat, re and tracking 24 22 Resistance to corrosion 24 23 Electromagnetic compatibility (EMC) requirements Emission .24
22、24 Components .24 25 Normal OPERATION 24 26 Electromagnetic compatibility (EMC) requirements Immunity .24 27 Abnormal OPERATION .24 28 Guidance on the use of ELECTRONIC DISCONNECTION 24 MAY 28, 2014 UL 60730-2-4 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT
23、 PERMISSION FROM UL Annexes Annex C Cotton Used for Mercury Switch Test Annex D Resistance to Heat, Fire and Tracking Annex E Circuit for Measuring LEAKAGE CURRENT Annex H Requirements for ELECTRONIC CONTROLS Annex AA (informative) Endurance test for THERMAL MOTOR PROTECTORS as components, i.e. not
24、installed on a motor AA.1 Purpose .25 AA.2 Endurance test of AUTOMATIC ACTION at accelerated rate .25 AA.2.1 Electrical conditions for tests 25 AA.2.2 Thermal conditions for the tests 26 AA.2.3 Manual and mechanical conditions for the test .26 AA.2.4 Test of AUTOMATIC ACTION at accelerated rate 27 A
25、A.2.5 Evaluation of test results 27 MAY 28, 2014 UL 60730-2-4 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface (UL) This UL Standard 60730-2-4, Standard for Safety for Automatic Electrical Controls for Household and Similar Use; Part
26、 2: Particular Requirements for Thermal Motor Protectors for Motor-Compressors of Hermetic and Semi-Hermetic Type, is to be used in conjunction with the third edition of UL 60730-1A. Consideration may be given to future editions of UL 60730-1. The requirements for thermal motor protectors for motor-
27、compressors of hermetic and semi-hermetic type are contained in this part 2 Standard and UL 60730-1. Requirements of this part 2 Standard, where stated, amend the requirements of UL 60730-1. Where a particular subclause of UL 60730-1 is not mentioned in UL 60730-2-4, the UL 60730-1 subclause applies
28、. The text, gures and tables of IEC Publication Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Thermal Motor Protectors for Motor-Compressors of Hermetic and Semi-Hermetic Type, IEC 60730-2-4, copyright 1990, as amended in 1994 and 2001, are used in
29、this Standard with the consent of the IEC and the American National Standards Institute (ANSI). The IEC copyrighted material has been reproduced with permission from ANSI. ANSI should be contacted regarding the reproduction of any portion of the IEC material. The IEC Foreword and Introduction are no
30、t a part of the requirements of this Standard but are included for information purposes only. Copies of IEC Publication 60730-2-4 may be purchased from ANSI, 11 West 42 nd Street, New York, New York, 10036, (212) 642-4900. Note Although the intended primary application of this Standard is stated in
31、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 purpose. MAY 28, 2014 UL 60730-2-4 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL These materi
32、als are subject to copyright claims of IEC and UL. No part of this publication may be reproduced in any form, including an electronic retrieval system, without the prior written permission of UL. All requests pertaining to UL 60730-2-4 should be submitted to UL. Effective Date The effective date for
33、 this edition is October 19, 2018. A UL effective date is one established by Underwriters Laboratories Inc. and is not part of the ANSI approved standard. Foreword (UL) THE UL FOREWORD IS NO LONGER PART OF THIS DOCUMENT MAY 28, 2014 UL 60730-2-4 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER RE
34、PRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NATIONAL DIFFERENCES GENERAL National Differences from the text of International Electrotechnical Commission (IEC) Publication 60730-2-4, Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Thermal Mot
35、or Protectors for Motor-Compressors of Hermetic and Semi-Hermetic Type, copyright 1990, as amended in 1994 and 2001, are indicated by notations (differences) and are presented in bold text. There are ve types of National Differences as noted below. The difference type is noted on the rst line of the
36、 National Difference in the standard. The standard may not include all types of these National Differences. DR These are National Differences based on the national regulatory requirements. D1 These are National Differences which are based on basic safety principles and requirements, elimination of w
37、hich would compromise safety for consumers and users of products. D2 These are national differences from IEC requirements based on existing safety practices. These requirements reect national safety practices, where empirical substantiation (for the IEC or national requirement) is not available or t
38、he text has not been included in the IEC standard. DC These are National Differences based on the component standards and will not be deleted until a particular component standard is harmonized with the IEC component standard. DE These are National Differences based on editorial comments or correcti
39、ons. MAY 28, 2014 UL 60730-2-4 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTERNATIONAL ELECTROTECHNICAL COMMISSION AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE Part 2: Particular Requirements for Thermal Motor Protector
40、s for Motor-Compressors of Hermetic and Semi-Hermetic Type FOREWORD 1) The formal decisions or agreements of the IEC on technical matters, prepared by Technical Committees on which all the National Committees having a special interest therein are represented, express, as nearly as possible, an inter
41、national consensus of opinion on the subjects dealt with. 2) They have the form of recommendations for international use and they are accepted by the National Committees in that sense. 3) In order to promote international unication, the IEC expresses the wish that all National Committees should adop
42、t the text of the IEC recommendation for their national rules in so far as national conditions will permit. Any divergence between the IEC recommendation and the corresponding national rules should, as far as possible, be clearly indicated in the latter. PREFACE This publication has been prepared by
43、 IEC Technical Committee No. 72: Automatic controls for household use. It forms the rst edition of IEC Publication 60730-2-4. The text of this publication is based upon the following documents: Six Months Rule Report on Voting 72(CO)39 72(CO)50 Full information on the voting for the approval of this
44、 publication can be found in the Voting Report indicated in the above table. Amendment 1 has been prepared by IEC technical committee 72: Automatic controls for household use. The text of this amendment is based on the following documents: DIS Report on Voting 72(CO)131 72(CO)137 Full information on
45、 the voting for the approval of this amendment can be found in the report on voting indicated in the above table. Amendment 2 has been prepared by IEC technical committee 72: Automatic controls for household use. MAY 28, 2014 UL 60730-2-4 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCT
46、ION OR DISTRIBUTION WITHOUT PERMISSION FROM UL The text of this amendment is based on the following documents: FDIS Report on Voting 72/522/FDIS 72/533/RVD Full information on the voting for the approval of this amendment can be found in the report on voting indicated in the above table. The committ
47、ee has decided that the contents of the base publication and its amendments will remain unchanged until 2003. At this date, the publication will be reconrmed; withdrawn; replaced by a revised edition, or amended. This part 2-4 is intended to be used in conjunction with IEC 60730-1. It was establishe
48、d on the basis of the third edition of that standard (1999). Consideration may be given to future editions of, or amendments to, IEC 60730-1. This Part 2 supplements or modies the corresponding clauses in IEC Publication 60730-1 so as to convert that publication into the IEC standard: Safety require
49、ments for electrical controls for electrical household appliances (rst edition). Where this rst edition states addition , modication or replacement , the relevant requirement, test specication or explanatory matter in Part 1 should be adapted accordingly. Where no change is necessary the Part 2 indicates that the relevant clause or sub-clause applies. In the development of a fully international standard it has been necessary to take into consideration the differing requirements
