UL 1446-2008 Standard for Systems of Insulating Materials-General.doc
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1、UL 1446Systems of Insulating Materials GeneralUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULThis PDF Standard downloaded from JANUARY 30, 2008 UL 1446tr3Underwriters Laboratories Inc. (UL)333 Pfingsten RoadNorthbrook, IL 60062-2096UL Standa
2、rd for Safety for Systems of Insulating Materials General, UL 1446Sixth Edition, Dated February 8, 2007Revisions: This Standard contains revisions through and including January 30, 2008.SUMMARY OF TOPICSThese revisions to ANSI/UL 1446 include the following changes in requirements: Revision of 8.5.8
3、to reflect current practice.Revision to the Scope changing the 600 V limit to 1000 VCorrection of Order of the Environmental Conditionings for Insulation System AgingRevision of 5.2.4 - One Temperature Aging of a Magnet WireUL Standards for Safety are developed and maintained in the Standard General
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5、em, please note that additional pages (on which no requirements have been changed) may be included in revision pages due to 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 in requirements are
6、marked with a vertical line in the margin and are followed by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective.The following table lists the future effective dates with the corresponding reference:UL COPYRIGHTED MATERIAL NOT AUT
7、HORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULThis PDF Standard downloaded from Future Effective DatesReferencesJuly 28, 2012Paragraphs 5.2.4, 9.2, 10.3, and theReference Publication ANSI/NEMA MW1000 in Clause 2The requirements are substantially in accordance with ULs Pr
8、oposal(s) on this subject dated July 27,2007 and November 2, 2007.The revisions dated January 30, 2008 include a reprinted title page (page1) for this Standard.As indicated on the title page (page 1), this UL Standard for Safety is an American National Standard. Attention is directed to the note on
9、the title page of this Standard outlining the procedures to be followed to retain the approved text of this ANSI/UL Standard.The UL Foreword is no longer located within the UL Standard. For information concerning the use and application of the requirements contained in this Standard, the current ver
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