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1、Subject 60730-2-2 (1004, 1004A, 2111) (In reply, refer to Subject 60730-2-2) 12 Laboratory Drive Research Triangle Park, NC 27709 September 22, 2003 TO:Standards Technical Panel for Electric Motors, STP 1004 Electrical Council of Underwriters Laboratories Inc. Subscribers to ULs Standards Service fo
2、r: Electric Motors Overheating Protection for Motors SUBJECT:Request for Comments on Proposed First Edition of the Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Thermal Motor Protectors, UL 60730-2-2; PROPOSED EFFECTIVE DATE SUMMARY OF
3、TOPICS This bulletin proposes the following: First Edition of the Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Thermal Motor Protectors COMMENTS DUE: DECEMBER 22, 2003 Attached as Appendix A for your review and comment are proposed req
4、uirements for UL 60730-2-2. Questions regarding interpretation of requirements should be directed to the responsible UL Staff. Please see Appendix B of this bulletin regarding designated responsibility for the subject product categories. Please note that proposed requirements are of a tentative and
5、early nature and are for review and comment only. Current requirements are to be used to judge a product until these requirements are published in fi nal form. PRODUCTS AND INDUSTRIES AFFECTED BY THE PROPOSAL UL requests your assistance in identifying other products or industries that might be affec
6、ted by the requirements contained in this bulletin. UL suggests that all suppliers or customers for these products and industries be made aware of these requirements prior to their proposed effective date. Also, please forward your suggestions to UL so that these products and industries may be ident
7、ifi ed in future bulletins. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/15/2006 03:48:56 MDTNo reproduction or networking permitted without license from IHS -,-,- RATIONALE In response to request
8、s from industry, UL is proposing the First Edition of the Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Thermal Motor Protectors, UL 60730-2-2. If the proposed requirements for UL 60730-2-2 are adopted, they may be used as an alternate
9、for the requirements for these types of controls which are presently contained in the Standard for Overheating Protection for Motors, UL 2111, until the future effective date, when UL 60730-2-2 ultimately replaces UL 2111. IMPACT These proposed requirements will not necessitate a review or additiona
10、l testing of currently Listed or Recognized products. Therefore, UL proposes that the new requirements become effective upon publication. In addition, UL is proposing the following effective date schedule for the replacement of the requirements in UL 2111 with the requirements in UL 60730-2-2: Effec
11、tive Date Schedule DateActivity Publication date of UL 60730-2-2UL publishes 60730-2-2 with the proposed revisions to correlate that Standard with the third edition of UL 60730-1A. Publication to November 15, 2008Manufacturers have the option of investigating products to UL 2111 or UL 60730-2-2. Exi
12、sting products Listed or Recognized to UL 2111 may retain their Listing or Recognition. November 15, 2008 to November 15, 2009Unless requested by the manufacturer in writing to investigate to UL 2111, all new and revised products and constructions will be investigated to UL 60730-2-2. Existing produ
13、cts Listed or Recognized under UL 2111 may retain their Listing or Recognition. November 15, 2009All products must comply with UL 60730-2-2. The applicable requirements in UL 2111 that cover thermal motor protectors will be withdrawn. REQUESTS FOR COMMENTS ON PROPOSALS Please provide the following:
14、1. Your comments concerning the proposed requirements; and 2. Your comments concerning the proposed effective date, should the proposals be adopted. NOTE: The proposed Part 2 standard must be used in conjunction with UL 60730-1A, Automatic Electrical Controls for Household and Similar Use, Part 1: G
15、eneral Requirements in the U.S. To purchase a copy of UL 60730-1A, contact comm-2000 at 1-888-853-3503 (1-888-UL3-3503) or at m-. Written comments should be sent to the attention of Neil Dalmas at ULs Research Triangle Park office, 12 Laboratory Drive, Research Triangle Park, NC 27709-3995. Comments
16、 may be sent by mail or faxed to (919) 547-6192, e-mail: Neil.S.D. Please reference all correspondence to Subject 60730-2-2. All comments should be sent by December 22, 2003. SEPTEMBER 22, 2003SUBJECT 60730-2-2-2- Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee
17、=North Carolina State University/5618801100 Not for Resale, 10/15/2006 03:48:56 MDTNo reproduction or networking permitted without license from IHS -,-,- Unless specifi cally requested to do so, UL will not acknowledge comments indicating concurrence with these proposals. UNDERWRITERS LABORATORIES I
18、NC. NEIL DALMAS Project Engineer Standards Department RESEARCH TRIANGLE PARK DIVISION Phone: (919) 549-1879 Fax: (919) 547-6192 E-mail: Neil.S.D http:/ REVIEWED BY: JAYENDRA PARIKH Primary Designated Engineer 3615DSNK NORTHBROOK DIVISION Phone: (847) 664-2667 Fax: (847) 272-8129 E-mail: Jayendra.S.P
19、 Copyright 2003 Underwriters Laboratories Inc. SR: SAB 99st00430_uliec60730-2-2.1 SEPTEMBER 22, 2003SUBJECT 60730-2-2-3- Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/15/2006 03:48:56 MDTNo reprodu
20、ction or networking permitted without license from IHS -,-,- APPENDIX A PROPOSED FIRST EDITION OF THE STANDARD FOR AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE; PART 2: PARTICULAR REQUIREMENTS FOR THERMAL MOTOR PROTECTORS, UL 60730-2-2 DRAFT SEPTEMBER 22, 2003SUBJECT 60730-2-2-A1- Cop
21、yright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/15/2006 03:48:56 MDTNo reproduction or networking permitted without license from IHS -,-,- NATIONAL DIFFERENCES National differences from IEC 60730-2-2 te
22、xt are indicated by the following margin notation: There are fi ve types of national differences as noted below. The national difference type is noted on the fi rst line of the national difference in the standard. The standard may not include all types of these national differences. DR These are nat
23、ional differences based on the National Electrical Code (NEC) and other U.S. Regulatory Requirements. D1 These are national differences which are based on basic safety principles and requirements, elimination of which would compromise safety for U.S. consumers and users of products. D2 These are nat
24、ional differences based on safety practices. These are national differences for IEC requirements that may be acceptable, but adopting the IEC requirements would require considerable retesting or redesign on the manufacturers part. DC These are national differences based on the component standards an
25、d 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 corrections. SEPTEMBER 22, 2003SUBJECT 60730-2-2-A2- Copyright Underwriters Laboratories Inc. Provided by IHS under license with
26、 ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/15/2006 03:48:56 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL ELECTROTECHNICAL COMMISSION AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE; Part 2: Particular Requirements
27、for Thermal Motor Protectors Foreword (IEC) 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 international consensus of op
28、inion 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 unifi cation, the IEC expresses the wish that all National Committees should adopt the text of the IEC
29、 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. SEPTEMBER 22, 2003SUBJECT 60730-2-2-A3- Copyright Underwriters Lab
30、oratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/15/2006 03:48:56 MDTNo reproduction or networking permitted without license from IHS -,-,- 1 Scope This clause of Part 1 is replaced by the following: 1.1 This standard applies
31、to the partial evaluation of thermal motor protectors as defi ned in Publication 60730-1 for household and similar use including heating, air conditioning and similar applications. A thermal motor protector is an integrated control which is dependent on its correct mounting and fi xing in or on a mo
32、tor and which can only be fully tested in combination with the relevant motor. Requirements concerning the testing of the combination of motor and thermal motor protector are given in Appendix AA for information and include requirements taken from other IEC standards. This part of IEC 60730 applies
33、to thermal motor protectors using thermistors (NTC, PTC), additional requirements for which are contained in annex J of part 1. 1.1.1 This standard applies to the inherent safety, to the operating values, operating times and operating sequences where such are associated with equipment safety and to
34、the testing of thermal motor protectors used in or on household or similar equipment. This standard is also applicable to thermal motor protectors for appliances within the scope of IEC Publication 335. Throughout this standard the word “equipment” means “appliance and equipment”. Throughout the man
35、datory text of this standard, the words “not applicable” mean that the test is not applicable to the evaluation of the thermal motor protector submitted separately. However, the test may be applicable to the evaluation of the thermal motor protector in combination with the motor. Thermal motor prote
36、ctors for equipment not intended for normal household use, but which nevertheless may be used by the public, such as equipment intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard. This standard does not apply to thermal motor protectors desig
37、ned exclusively for industrial applications. D2Addition: 1.1.101DV In the U.S.A, this standard applies to thermal motor protectors designed for household, commercial, or industrial use. 1.1.2 This standard does not apply to other means of motor protection. 1.1.3 This standard does not apply to a man
38、ual device for opening the circuit. 1.1.4 This standard does not apply to thermal motor protectors for hermetic or semi-hermetic motor compressors. For such devices, IEC 60730-2-4 is applicable. D2Addition: 1.1.102DV This standard does not apply to a motor protector the contacts of which control a r
39、elay coil in a motor starter. SEPTEMBER 22, 2003SUBJECT 60730-2-2-A4- Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/15/2006 03:48:56 MDTNo reproduction or networking permitted without license from
40、IHS -,-,- 1.1.103DV This standard does not apply to thermal protectors incorporating a melting alloy or other fusible element. 1.2 This standard applies to thermal motor protectors for use with electric motors with a rated voltage equal to or less than 660 V and a rated output of 11 kW or less. 1.5
41、Normative references This subclause of part 1 is applicable. 2 Defi nitions This clause of Part 1 is applicable, except as follows: 2.6 Addition: 2.6.101 Type 3 action Type 3 action denotes an automatic action for which reliability of the operating characteristics can only be evaluated in terms of m
42、easurements made on the protected motor. 3 General requirements This clause of Part 1 is applicable. 4 General notes on tests This clause of Part 1 is applicable, except as follows: 4.3.1.1 Not applicable. 4.3.1.2 Not applicable. 4.3.2 Not applicable. 5 Rating This clause of Part 1 is not applicable
43、. 6 Classifi cation This clause of Part 1 is applicable, except as follows: 6.4 According to features of automatic action 6.4.1 Not applicable. SEPTEMBER 22, 2003SUBJECT 60730-2-2-A5- Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State Universi
44、ty/5618801100 Not for Resale, 10/15/2006 03:48:56 MDTNo reproduction or networking permitted without license from IHS -,-,- 6.4.2 Replacement: Type 3 action. 6.4.3 Replacement: Type 3 actions are further classifi ed according to one or more of the following constructional or operational features: Th
45、ese further classifi cations are only applicable if the relevant declarations have been made and any appropriate tests completed. An action providing more than one feature may be classifi ed by a combination of the appropriate letters, for example, Type 3CL. A manual action is not classifi ed accord
46、ing to this sub-clause. 6.4.3.1 void; 6.4.3.2 micro-disconnection on operation (Type 3B); 6.4.3.3 micro-interruption on operation (Type 3C); 6.4.3.4 void; 6.4.3.5 void; 6.4.3.6 void; 6.4.3.7 void; 6.4.3.8 a trip-free mechanism in which the contacts cannot be prevented from opening and which may auto
47、matically be reset to the “closed” position after safe operation conditions have been restored if the reset means is held in the “reset” position (Type 3H). 6.7 Not applicable. 6.10 Not applicable. 6.11 Not applicable. 6.12 Not applicable. 6.14 Not applicable. 6.16 Not applicable. 7 Information This
48、 clause of Part 1 is applicable except as follows: 7.2.6 Replacement For thermal motor protectors, information shall be provided as indicated in Table 7.2. SEPTEMBER 22, 2003SUBJECT 60730-2-2-A6- Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/15/2006 03:48:56 MDTNo reproduction or networking permitted without license from IHS -,