求助:IEC-612249 (已应助)

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IEC61249orIEC611249? plsconfirm

大俠 是 IEC61249-2-21 謝謝 金老大 我下次改進

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IEC61249-2-21-2003 FOREWORD..........................................................................................................................7 1Scope.............................................................................................................................13 2Normativereferences......................................................................................................13 3Materialsandconstruction..............................................................................................13 3.1Resinsystem.........................................................................................................15 3.2Reinforcement.......................................................................................................15 3.3Metalfoil................................................................................................................15 4Internalmarking..............................................................................................................15 5Electricalproperties........................................................................................................15 6Non-electricalpropertiesofthecopper-cladlaminate......................................................17 6.1Appearanceofthecopper-cladsheet.....................................................................17 6.2Appearanceoftheuncladface...............................................................................19 6.3Laminatethickness................................................................................................19 6.4Bowandtwist........................................................................................................21 6.5Propertiesrelatedtothecopperfoilbond...............................................................21 6.6Punchingandmachining........................................................................................23 6.7Dimensionalstability..............................................................................................23 6.8Sheetsizes............................................................................................................25 6.9Cutpanels.............................................................................................................25 7Non-electricalpropertiesofthebasematerialaftercompleteremovalof thecopperfoil.................................................................................................................27 7.1Appearanceofthedielectricbasematerial.............................................................27 7.2Flexuralstrength....................................................................................................29 7.3Flammability..........................................................................................................29 7.4Waterabsorption...................................................................................................31 7.5Measling................................................................................................................31 7.6Glasstransitiontemperatureandcurefactor..........................................................31 8Qualityassurance...........................................................................................................33 8.1Qualitysystem.......................................................................................................33 8.2Responsibilityforinspection...................................................................................33 8.3Qualificationinspection..........................................................................................33 8.4Qualityconformanceinspection..............................................................................33 8.5Certificateofconformance.....................................................................................33 8.6Safetydatasheet...................................................................................................33 9Packagingandmarking...................................................................................................35 10Orderinginformation.......................................................................................................35 AnnexA(informative)Engineeringinformation.....................................................................37 AnnexB(informative)Commonlaminateconstructions.........................................................41 AnnexC(informative)Guidelineforqualificationandconformanceinspection.......................45 Bibliography..........................................................................................................................47

大俠太感謝你了:loveliness:

感谢！学习一下！