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各位: 聽說 UL 1581中 VW-1 在2008/7月有變更,比以前加嚴了,有這事嗎?到底加嚴了多少?
謝謝意
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Summary of Topics:
These revisions to ANSI/UL 1581 include the following changes in requirements: Revision to Mandrel Requirements to Permit the Use of Smaller Sized Mandrels Specification of Nichrome Support Wire for Repeated Flame Tests
Correction of Inadvertent Omission of Char Length Requirements from Horizontal
Specimen/FT2 Flame Test
Substantive Revisions Including a) Deletion of Tables Containing Redundant Materials Requirements; b) Revisions to Materials Tables Including i) Revision of SI Units for Tensile Strength; ii) Deletion of Fahrenheit Temperature from Wire and Cable Temperature Ratings; iii) Deletion of Class Number for Material Identification, and iv) Miscellaneous Revisions for Consistency with Other Wire and Cable Standards and Requirements; and c) Establishment of New 7-Day Aging Requirements for 125 C Type EPDM and 90 C Type FRPE
Revision and Deletion of Requirements Due to the Publication of UL 2556 and
Miscellaneous Editorial Corrections and Clarifications
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那位高手可以翻譯呀。小弟也期待這看看呀
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期待高手翻譯。