1、 IEC 60939-3 Edition 1.0 2015-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Passive filter units for electromagnetic interference suppression Part 3: Passive filter units for which safety tests are appropriate Filtres passifs dantiparasitage Partie 3: Filtres passifs pour lesquels des essais de scu
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19、 lIEC. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60939-3 Edition 1.0 2015-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Passive filter units for electromagnetic interference su
20、ppression Part 3: Passive filter units for which safety tests are appropriate Filtres passifs dantiparasitage Partie 3: Filtres passifs pour lesquels des essais de scurit sont appropris INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 31.160 ISBN 978-2-8322-28
21、07-4 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via u
22、n distributeur agr. 2 IEC 60939-3:2015 IEC 2015 CONTENTS FOREWORD . 7 1 General . 9 1.1 Scope . 9 1.2 Normative references 9 1.3 Information to be given in a detail specification 11 1.3.1 General . 11 1.3.2 Outline drawing and dimensions . 11 1.3.3 Mounting 11 1.3.4 Ratings and characteristics 12 1.
23、3.5 Marking . 12 1.4 Terms and definitions 12 1.5 Marking . 17 1.5.1 General . 17 1.5.2 Coding . 18 1.5.3 Marking details 18 1.5.4 Marking of filters 18 1.5.5 Marking of packaging . 18 1.5.6 Additional marking . 18 1.6 Components 18 1.7 Overcurrent protective devices 18 1.8 Wiring and Insulation . 1
24、9 1.8.1 General . 19 1.8.2 Sleeving, tubing and wire insulation 19 1.8.3 Properties of insulation material . 19 1.9 Protective Bonding Conductors 19 1.10 Corrosion 20 2 Preferred ratings and characteristics 20 2.1 Preferred characteristics . 20 2.1.1 General . 20 2.1.2 Preferred climatic categories
25、20 2.2 Preferred values of ratings 20 2.2.1 Rated voltage (U R ) 20 2.2.2 Rated temperature . 20 2.2.3 Passive flammability 20 3 Test plan for safety tests 21 3.1 Structurally similar filters . 21 3.2 Safety approval procedure . 21 3.2.1 General . 21 3.2.2 Sampling . 21 3.2.3 Tests . 22 3.3 Requalif
26、ication tests 22 4 Test and measurement procedures 24 4.1 General . 24 4.1.1 General . 24 4.1.2 Standard atmospheric conditions 24 4.1.3 Standard atmospheric conditions for testing 24 4.1.4 Recovery conditions . 25 IEC 60939-3:2015 IEC 2015 3 4.1.5 Referee conditions . 25 4.1.6 Reference conditions
27、. 25 4.1.7 Drying 26 4.2 Visual examination and check of dimensions . 26 4.2.1 Visual examination . 26 4.2.2 Dimensions (gauging) 26 4.2.3 Dimensions (detail) 26 4.2.4 Creepage distances and clearances . 26 4.3 Inductance measurement 29 4.3.1 General . 29 4.3.2 Measuring conditions . 29 4.4 Earth in
28、ductors incorporated in filters. 29 4.5 Capacitance 29 4.5.1 General . 29 4.5.2 Measuring conditions . 29 4.6 Insertion loss 30 4.7 Insulation resistance . 30 4.7.1 General . 30 4.7.2 Measuring voltage 30 4.7.3 Application of measuring voltage 31 4.7.4 Mean time to measuring . 32 4.7.5 Temperature c
29、orrection factor 32 4.7.6 Information to be given in a detail specification . 32 4.7.7 Requirements 34 4.8 Voltage proof 35 4.8.1 General . 35 4.8.2 Test procedure . 35 4.8.3 Applied voltage 35 4.8.4 Tests . 36 4.8.5 Requirements 37 4.8.6 Repetition of the voltage proof test . 37 4.8.7 Information t
30、o be given in a detail specification . 37 4.8.8 Requirements 37 4.9 DC line resistance or voltage drop at rated current . 37 4.9.1 General . 37 4.9.2 DC line resistance 37 4.9.3 Voltage drop at rated current 37 4.10 Discharge resistance . 38 4.10.1 General . 38 4.10.2 Resistor Test . 38 4.11 Robustn
31、ess of terminations . 39 4.11.1 General . 39 4.11.2 Test Ua1 Tensile . 39 4.11.3 Test Ub Bending . 39 4.11.4 Test Uc Torsion . 39 4.11.5 Test Ud Torque . 39 4.11.6 Visual examination . 41 4.12 Resistance to soldering heat . 41 4.12.1 Applicability of the test . 41 4 IEC 60939-3:2015 IEC 2015 4.12.2
32、Pre-measurement 41 4.12.3 Test conditions 41 4.12.4 Test severity 41 4.12.5 Intermediate inspection, measurements and requirements 41 4.13 Solderability (for performance only) . 41 4.13.1 General . 41 4.13.2 Test method . 42 4.13.3 Test conditions 42 4.13.4 Requirements 42 4.13.5 Final measurements
33、and requirements . 42 4.14 Rapid change of temperature (for performance only) 42 4.14.1 Pre-measurements . 42 4.14.2 Test method . 43 4.14.3 Final inspection 43 4.15 Vibration (for performance only) 43 4.15.1 Pre-measurements . 43 4.15.2 Test method . 43 4.15.3 Test conditions 43 4.15.4 Intermediate
34、 inspection 43 4.15.5 Final Inspection . 43 4.16 Shock (for performance only) . 43 4.16.1 Pre measurements . 43 4.16.2 Test method . 44 4.16.3 Test conditions 44 4.16.4 Final Inspection . 44 4.17 Container sealing (for performance only) . 44 4.17.1 General . 44 4.17.2 Test conditions 44 4.17.3 Requi
35、rements 44 4.18 Climatic sequence . 44 4.18.1 General . 44 4.18.2 Initial measurements 44 4.18.3 Dry heat . 45 4.18.4 Damp heat, cyclic . 45 4.18.5 Cold . 45 4.18.6 Low air pressure 45 4.18.7 Damp heat, cyclic, remaining cycles . 46 4.18.8 Final inspection, measurements and requirements 46 4.19 Damp
36、 heat, steady state 46 4.19.1 Pre-measurements . 46 4.19.2 Test method . 46 4.19.3 Test conditions 46 4.19.4 Final inspection, measurements and requirements 47 4.20 Temperature rise . 47 4.20.1 General . 47 4.20.2 Test method . 47 4.20.3 Test description . 48 4.20.4 Requirements 49 4.21 Current over
37、load . 50 IEC 60939-3:2015 IEC 2015 5 4.21.1 Pre-measurements . 50 4.21.2 Test method . 50 4.21.3 Final inspection, measurements and requirements 50 4.22 Leakage current 50 4.23 Protective conductor resistance . 50 4.24 Impulse voltage . 51 4.24.1 General . 51 4.24.2 Initial measurements 51 4.24.3 T
38、est conditions 51 4.24.4 Requirements 51 4.25 Endurance 52 4.25.1 General . 52 4.25.2 General test conditions 52 4.25.3 Test conditions current test . 52 4.25.4 Test conditions voltage test, terminations/case 53 4.25.5 Test conditions voltage test between terminations 53 4.25.6 Test conditions combi
39、ned voltage/current tests 54 4.25.7 Final inspection, measurements and requirements 54 4.26 Charge and discharge (for performance only) 54 4.26.1 General . 54 4.26.2 Test circuits and wave forms 54 4.26.3 Information given in detail specification 56 4.26.4 Initial measurements 56 4.26.5 Test conditi
40、ons 57 4.26.6 Final measurements and requirements . 57 4.27 Passive flammability 57 4.27.1 General . 57 4.27.2 Test method . 57 4.28 Active flammability 58 4.29 Solvent resistance of the marking 58 4.29.1 General . 58 4.29.2 Test description . 58 4.29.3 Requirements after test 59 4.30 Component solv
41、ent resistance (for performance only) 59 4.30.1 General . 59 4.30.2 Initial measurements 59 4.30.3 Test description . 59 4.30.4 Final measurements . 59 Annex A (informative) Calculation of leakage current 60 A.1 General . 60 A.2 Calculation of leakage current for 1-line filters . 60 A.3 Calculation
42、of leakage current for 2-line filters . 61 A.4 Calculation of leakage current for 3-line filters . 61 A.5 Calculation of leakage current for 4-line filters . 63 Annex B (normative) Test schedule for safety requirements only . 64 Annex C (normative) Circuit for the impulse voltage test . 67 Annex D (
43、normative) Circuit for the endurance test . 69 Annex E (normative) Declaration of design . 70 6 IEC 60939-3:2015 IEC 2015 Annex F (informative) Safety and performance tests qualification approval Assessment level DZ 71 Annex P (informative) Additional components and material standards . 73 Bibliogra
44、phy . 74 Figure 1 Asymmetrical and symmetrical test circuit . 17 Figure 2 Examples for the application of Tests A and B of Table 9 33 Figure 3 Examples for the application of Test C of Table 9 34 Figure 4 Impulse wave form . 51 Figure 5 Relay circuit . 55 Figure 6 Thyristor circuit 55 Figure 7 Volta
45、ge and current waveforms . 56 Figure A.1 Leakage current for 1-line filters 60 Figure A.2 Leakage current for 2-line filters 61 Figure A.3 Leakage current for 3-line filters 62 Figure A.4 Leakage current for 4-line filters 63 Figure C.1 Impulse voltage test circuit 67 Figure D.1 Endurance test circu
46、it . 69 Table 1 Classification of Class X capacitors 13 Table 2 Classification of Class Y capacitors 14 Table 3 Tests concerning safety requirements only . 23 Table 4 Lot-by-lot test Safety tests only approval . 24 Table 5 Standard atmospheric conditions . 25 Table 6 Creepage distances . 28 Table 7
47、Clearance 29 Table 8 DC voltage for insulation resistance . 31 Table 9 Measuring points . 33 Table 10 Insulation resistance Safety tests only . 34 Table 11 Insulation resistance Safety and performance tests . 35 Table 12 Voltage proof (filter connected to mains) 36 Table 13 Voltage proof (filter not
48、 connected to mains; e.g. d.c. filters) . 36 Table 14 Force for wire terminations 39 Table 15 Torque 40 Table 16 Preferred severity 44 Table 17 Number of cycles . 46 Table 18 Maximum temperatures 49 Table 19 Measurements and requirements after charge and discharge 57 Table 20 Categories of flammabil
49、ity 58 Table B.1 Test schedule for safety requirements only (1 of 3) . 64 Table C.1 Values of C X , C T , R P , R S , C P. 67 Table C.2 Values and tolerances of Cx, tr, td 68 Table F.1 Sampling plan Assessment level DZ (1 of 2) . 71 IEC 60939-3:2015 IEC 2015 7 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ PASSIVE FILTER UNITS FOR ELECTROMAGNETIC I
