1、 INTERNATIONAL STANDARD IEC60939-2 Second edition2005-02 Passive filter units for electromagnetic interference suppression Part 2:Sectional specification Passive filter units for which safety tests are appropriate Test methods and general requirements Reference number IEC 60939-2:2005(E)LICENSED TO
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8、,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONAL STANDARD IEC60939-2 Second edition2005-02 Passive filter units for
9、 electromagnetic interference suppression Part 2:Sectional specification Passive filter units for which safety tests are appropriate Test methods and general requirements IEC 2005 Copyright-all rights reserved No part of this publication may be reproduced or utilized in any form or by any means,elec
10、tronic or mechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch X For pr
11、ice,see current catalogue PRICE CODE Commission Electrotechnique InternationaleInternational Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 60939-2 IEC:2005(E)CONTENTS FOREWORD.4 1 General.6 1.1 Scope.6 1
12、.2 Normative references.6 1.3 Information to be given in a detail specification.7 1.4 Definitions.8 1.5 Marking.9 2 Preferred ratings and characteristics.10 2.1 Preferred characteristics.10 2.2 Preferred values of ratings.10 3 Quality assessment procedures.11 3.1 Primary stage of manufacture.11 3.2
13、Structurally similar filters.11 3.3 Certified records of released lots.11 3.4 Approval testing.11 3.5 Quality conformance inspection.13 4 Test and measurement procedures.18 4.1 Earth inductors incorporated in filters.18 4.2 Capacitance and tan measurements.18 4.3 Visual examination and check of dime
14、nsions.18 4.4 Voltage proof.19 4.5 Insulation resistance.20 4.6 DC line resistance or voltage drop at rated current.20 4.7 Insertion loss.21 4.8 Discharge resistance.21 4.9 Robustness of terminations.22 4.10 Resistance to soldering heat.22 4.11 Solderability.22 4.12 Rapid change of temperature.22 4.
15、13 Vibration.23 4.14 Bump.23 4.15 Shock.24 4.16 Container sealing.24 4.17 Climatic sequence.25 4.18 Damp heat,steady state.26 4.19 Temperature rise.26 4.20 Impulse voltage.28 4.21 Endurance.29 4.22 Charge and discharge.31 4.23 Passive flammability.32 4.24 Current overload.32 4.25 Solvent resistance
16、of the marking.32 4.26 Component solvent resistance.33 4.27 Active flammability.33 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.60939-2 IEC:2005(E)3 Annex A(normative)Test schedule for qualification approval Assessment level D/DZ.34 Annex B(normative)Test schedule for safety requirements only.38 Annex C(normative)Circuit for the impulse voltage test.40 Annex D(normative)Circuit for the endurance test.42 Annex E(normative)Declara
