UL-8730-2-7-BULLETINS-2002.pdf
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1、Subject 60730-2-7 (917, 8730-2-7) 333 Pfingsten Road Northbrook, IL 60062 February 8, 2002 TO: Electrical Council of Underwriters Laboratories Inc. Consumer Advisory Council of Underwriters Laboratories Inc. Fire Council of Underwriters Laboratories Inc. Subscribers to ULs Standards Service for Auto
2、matic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Timers and Time Switches Clock-Operated Switches SUBJECT: Request for Comments on Proposed Requirements for the First Edition of the Standard for Automatic Electrical Controls for Household and Similar Use;
3、Part 2: Particular Requirements for Timers and Time Switches, UL 60730-2-7; PROPOSED EFFECTIVE DATE SUMMARY OF TOPICS This bulletin proposes the following changes in requirements Revise UL 8730-2-7 to update that standard to the first edition of UL 60730-2-7 to be used in conjunction with the third
4、edition of UL 60730-IA. Proposed effective date schedule for the replacement of requirements for Timers and Time Switches Contained in UL 917 and UL 8730-2-7. COMMENTS DUE: March 8,2002 Attached as Appendix A for your review and comment are proposed requirements for UL 60730-2-7 Questions regarding
5、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 early nature and are for review and comment only
6、. Current requirements are to be used to judge a product until these requirements are published in final form. PRODUCTSANDINDUSTRIESAFFECTED BYTHE PROPOSAL UL requests your assistance in identifying other products or industries that might be affected by the requirements contained in this bulletin. U
7、L 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 identified in future bu I let ins. Copyright Underwriters
8、Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/21/2006 20:33:35 MDTNo reproduction or networking permitted without license from IHS -,-,- SUBJECT 60730-2-7 Date April 3, 1995 Februarv 11, 2002 -2- Activity UL published th
9、e first edition of UL 8730-2-7 UL Dublishes the first edition of UL 60730-2-7. FEBRUARY 8,2002 Until December 31, 2003 December 31, 2003 PROPOSED EFFECTIVE DATE Manufacturers have the option of investigating products to UL 917 or UL 60730-2-7. Existing products Listed or Recognized to UL 917 may ret
10、ain their Listing or Recognition. All timers and time switches covered under other categories will be transfered to the UL 60730-2-7 category. All products must comply with UL 60730-2-7. UL 917 will be withdrawn. These proposed requirements will not necessitate a review or additional testing of curr
11、ently Listed or Recognized products. Therefore, UL proposes that the new requirements become effective upon publication. However, the replacement of UL 917 with UL 60730-2-7, as explained in the Subject 917 (8730-2-7) Industry Bulletin dated February 3, 1999, will require a review of currently Liste
12、d or Recognized products. Since UL is proposing to replace UL 917 with UL 60730-2-7, which is to be used in conjunction with the third edition of UL 60730-IA (which replaced the first edition of UL 8730-I), UL is proposing the following effective date schedule for the replacement of the requirements
13、 in UL 917 with the requirements in UL 60730-2-7. UL is proposing this schedule so that product investigations take into account the updated requirements in the third edition of UL 60730-IA. This can be achieved with this schedule and a single file review. The third edition of the Standard for Autom
14、atic Electrical Controls for Household and Similar Use, Part 1: General Requirements, UL 60730-1A, was published on January 28, 2002. The proposed requirements in Appendix A would update UL 60730-2-7 to correlate that standard with the third edition O f UL 60730-IA. IMPACT The proposed revisions cla
15、rify the requirements in UL 60730-2-7. If they are adopted, they will not necessitate a review of currently Listed or Recognized products. The proposed withdrawal of UL 917 and its replacement with UL 60730-2-7 will require a review of presently Listed and Recognized timers and and time switches by
16、the effective date of December 31, 2003. Also, all timers and time switches covered under other categories will be transfered to Category Control Numbers (CCNs) WGZR, Clock-Operated Switches, and WGZR2, Clock-Operated Switches - Component. REQUEST FOR COMMENTS ON PROPOSALS Please provide the followi
17、ng: 1. Your comments concerning the proposed requirements; and 2. Your comments concerning the proposed effective date, should the proposals be adopted Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10
18、/21/2006 20:33:35 MDTNo reproduction or networking permitted without license from IHS -,-,- SUBJECT 60730-2-7 -3- FEBRUARY 8,2002 Written comments should be sent by regular mail, fax, or e-mail to the attention of Alan McGrath at ULs Northbrook office, 333 Pfingsten Road, Northbrook, IL 60062. Pleas
19、e reference all correspondence to Subject 60730-2-7. If you respond by fax or e-mail, please include your full name and company address to ensure a reply. All comments should be sent by March 8, 2002. Unless specifically requested to do so, UL will not acknowledge comments indicating concurrence wit
20、h these proposals. UNDERWRITERS LABORATORIES INC. REVIEWED BY: ALAN MCGRATH (Ext. 43038) Staff Engineer Standards Department Fax: (847) 509-6217 E-mail: Alan.T.McG KENNETH BART0 (Ext. 22573) Staff Engineer Engineering Services 301 5J SR: JM Copyright Underwriters Laboratories Inc. Provided by IHS un
21、der license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/21/2006 20:33:35 MDTNo reproduction or networking permitted without license from IHS -,-,- SUBJECT 60730-2-7 -Al- FEBRUARY 8,2002 APPENDIX A PROPOSED REQUIREMENTS AND PROPOSED EFFECTIVE DATES FOR THE FIRST EDIT
22、ION OF THE STANDARD FOR AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE; PART 2: PARTICULAR REQUIREMENTS FOR TIMERS AND TIME SWITCHES, UL 60730-2-7 For your convenience in review, proposed additions to existing requirements are shown underlined and proposed deletions are shown tmd-ek. TT
23、 ef !JL ; fie, 4keck i- , . . RATIONALE UL proposes the following revision to the UL deviation contained in clause 11.9A. This revision would result in identical requirements as are required for similar type equipment like photo controls and a ppl ia nce control s. Copyright Underwriters Laboratorie
24、s Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/21/2006 20:33:35 MDTNo reproduction or networking permitted without license from IHS -,-,- SUBJECT 60730-2-7 -A2- FEBRUARY 8,2002 IMPACT If the revision is adopted, it would not require
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