UL 104-1998 UL Standard for Safety Elevator Door Locking Devices and Contacts (Tenth Edition Reprint with Revisions Through and Including April 02 2007)《升降机门锁装置和触点》.pdf
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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL 104ISBN 0-7629-0232-9Elevator Door Locking Devicesand ContactsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL N
2、OT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUnderwriters Laboratories Inc. (UL)333 Pfingsten RoadNorthbrook, IL 60062-2096UL Standard for Safety for Elevator Door Locking Devices and Contacts, UL 104Tenth Edition, Dated March 12, 1998Revisions: This Standard conta
3、ins revisions through and including April 2, 2007.Summary of TopicsThis revision of Standard UL 104 is being issued to clarify the marking requirements inParagraph 21.1.UL Standards for Safety are developed and maintained in the Standard Generalized Markup Language(SGML). SGML - an international sta
4、ndard (ISO 8879-1986) - is a descriptive markup language thatdescribes a documents structure and purpose, rather than its physical appearance on a page. Due toformatting differences resulting from the use of ULs new electronic publishing system, please note thatadditional pages (on which no requirem
5、ents have been changed) may be included in revision pages dueto relocation of existing text and reformatting of the Standard.Text that has been changed in any manner is marked with a vertical line in the margin. Changes inrequirements are marked with a vertical line in the margin and are followed by
6、 an effective date noteindicating the date of publication or the date on which the changed requirement becomes effective.The revised requirements are substantially in accordance with ULs Proposal(s) on this subject datedJanuary 8, 2007.The revisions dated April 2, 2007 include a reprinted title page
7、 (page1) for this Standard.The UL Foreword is no longer located within the UL Standard. For information concerning the use andapplication of the requirements contained in this Standard, the current version of the UL Foreword islocated on ULStandardsInfoNet at: http:/ master for this Standard at ULs
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24、ive date, unlessthe applicant specifically requests that the product be judged under the current requirements. However, ifthe applicant elects this option, it should be noted that compliance with all the requirements in thisStandard will be required as a condition of continued Listing, Recognition,
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