UL-987-BULLETINS-2001.pdf
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1、Subject 987 TO: SUBJECT: 12 Laboratory Drive Research Triangle Park, NC 27709 August 31, 2001 Standards Technical Panel (STP) for Tools, STP 745 Subscribers to ULs Standards Service for Other Interested Parties Stationary and Fixed Electric Tools Request for Comments on Proposed Requirements for the
2、 Sixth Edition of the Standard for Stationary and Fixed Electric Tools, UL 987; PROPOSED EFFECTIVE DATE INSTRUCTIONS STP Members: If you are a voting member of the STP, complete the attached ballot with your vote on the proposals. Please note that all negative ballots must be accompanied by supporti
3、ng written reasons and, where possible, proposals for a solution to the problem raised. Impact statements and effective date information are not subject to letter ballot. Therefore, comments regarding impact statements and effective dates may be made and should be sent to the STP Secretary separate
4、from the letter ballot. Subscribers and other interested parties: If you are a subscriber or other interested party, you are requested to send comments on the proposed requirements, impact statement, and proposed effective date to the STP Secretary. The STP member ballot should not be used to submit
5、 your comments. Comments should be made in writing and may be sent by fax to (919) 547-6192 or by mail to the attention of Neil Dalmas at ULs Research Triangle Park Office at 12 Laboratory Drive, Research Triangle Park, NC 27709. Comments may also be sent via E-mail to Neil.S.D. Please reference all
6、 correspondence to Subject 987. Note all comments received are public and may be circulated to others. If you respond by fax or E-mail, please include your full name and company name and address to ensure a reply. SUMMARY OF TOPICS This bulletin proposes the following changes in requirements: Lower
7、guarding for radial arm saws STP BALLOTS AND ALL COMMENTS DUE: SEPTEMBER 28,2001 Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/02/2007 01:43:59 MDTNo reproduction or networking permitted without l
8、icense from IHS -,-,- SUBJECT 987 -2- AUGUST 31,2001 Attached as Appendix A for your review and comment are proposed requirements for UL 987. Attached as Appendix B for your review and comment are the impact statement and proposed effective date. Attached as Appendix C and Appendix D are the STP mem
9、bership roster and the STP ballot, respectively. Questions regarding interpretation of requirements should be directed to the responsible UL Staff. Please see Appendix E of this bulletin regarding designated responsibility for the subject product categories. Please note that proposed requirements ar
10、e of a tentative and 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 final form. PRODUCTSANDINDUSTRIESAFFECTED BYTHE PROPOSAL UL requests your assistance in identifying other products or industries tha
11、t might be affected 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 industr
12、ies may be identified in future bu I let ins. Unless specifically requested to do so, UL will not acknowledge comments indicating concurrence with these proposals. UNDERWRITERS LABORATORIES INC. REVIEWED BY: NEIL DALMAS Secretary for STP 745 Standards Department Fax: (919) 547-6192 Email: Neil.S.D h
13、ttp:/ (91 9) 549-1 879 GARY SCHREMPP Chair for STP 745 Conformity Assessment Services 301 3HRTP Fax: (919) 547-6053 Email: Gary.F.S (91 9) 549-1 800 SR: SAB O 1 st00361-u1987.6 Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=Wing,
14、 Bernie Not for Resale, 04/02/2007 01:43:59 MDTNo reproduction or networking permitted without license from IHS -,-,- SUBJECT 987 -Al- AUGUST 31,2001 APPENDIX A PROPOSED REQUIREMENTS AND PROPOSED EFFECTIVE DATE FOR THE SIXTH EDITION OF THE STANDARD FOR STATIONARY AND FIXED ELECTRIC TOOLS, UL 987 For
15、 your convenience in review, proposed additions to existing requirements are shown underlined and proposed deletions are shown tmd-e Exception: A one-piece combination upper and lower blade guard may have a I-1/4-inch (31.8-mm) side slot on the motor side, extending from the motor-shaft to the botto
16、m of the guard, for motor-shaft clearance. b) Cover the teeth of the blade to their full depth; c) For miter and bevel angles of 45 degrees and less, comply with (a) and (b) in a radial direction, and (d); and d) Automatically ride over the workpiece and return to the original position upon leaving
17、the workpiece. Exception: A mechanical means may be provided to raise and lower the lower guard during crosscutting. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/02/2007 01:43:59 MDTNo reproducti
18、on or networking permitted without license from IHS -,-,- SUBJECT 987 -A2- AUGUST 31,2001 38.12 The manufacturer shall wtake provide a spreader awiabte for a saw used for ripping. When in use, the spreader shall be aligned with the saw blade. Copyright Underwriters Laboratories Inc. Provided by IHS
19、under license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/02/2007 01:43:59 MDTNo reproduction or networking permitted without license from IHS -,-,- SUBJECT 987 -BI- AUGUST 31,2001 APPENDIX B IMPACT STATEMENT AND PROPOSED EFFECTIVE DATE Standard Number 987 Paragrap
20、hs, Tables, Figures, or Section Number 38.11, 38.12 Impact If the proposals are adopted, no review of currently Listed products is necessary. Manufacturers are currently supplying guards and spreaders with radial arm saws. UL proposes that these requirements shall be effective upon date of publicati
21、on. Proposed Effective Date Date of Publication Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/02/2007 01:43:59 MDTNo reproduction or networking permitted without license from IHS -,-,- SUBJECT 987
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