Passive filter units for electromagnetic interference suppression - Part 3: Passive filter units for which safety tests are appropriate

IEC 60939-3:2015 covers passive filters used to attenuate unwanted radio-frequency signals (such as noise or interference) generated from electromagnetic sources. Both single and multi-channel filters within one enclosure or which are built on a printed circuit board forming a compact entity are included within the scope of this specification. This specification applies to passive filter units for electromagnetic interference suppression for which safety tests are appropriate. This implies that filters specified according to this specification will either be connected to mains supplies, when compliance with the mandatory tests of Table 3 is necessary, or used in other circuit positions where the equipment specification prescribes that some or all of these safety tests are required. This specification applies to passive filter units, which will be connected to an a.c. mains or other supply (d.c. or a.c.) with a nominal voltage not exceeding 1 000 V a.c., with a nominal frequency not exceeding 400 Hz, or 1 500 V d.c. The contents of the corrigendum of April 2016 and May 2018 have been included in this copy.

Filtres passifs d'antiparasitage - Partie 3: Filtres passifs pour lesquels des essais de sécurité sont appropriés

L'IEC 60939-3:2015 couvre les filtres passifs utilisés pour atténuer les signaux aux fréquences radioélectriques indésirables (par exemple le bruit ou le brouillage) générés par des sources électromagnétiques. Les filtres à voie unique et à voies multiples à l'intérieur d'une enveloppe, ou montés sur une carte de circuit imprimé formant une entité compacte, font partie du domaine d'application de la présente spécification. La présente spécification s'applique aux filtres passifs d'antiparasitage pour lesquels des essais de sécurité sont appropriés. Ceci implique que les filtres spécifiés conformément à la présente spécification seront, soit connectés à des réseaux d'alimentation, lorsque la conformité avec les essais obligatoires du Tableau 3 est nécessaire, soit utilisés dans d'autres positions de circuit où la spécification du matériel prescrit que certains ou tous ces essais de sécurité sont exigés. La présente spécification s'applique à des filtres passifs qui seront connectés à un réseau d'alimentation en courant alternatif ou à une autre alimentation (en courant continu ou en courant alternatif) dont la tension nominale ne dépasse pas 1 000 V en courant alternatif et dont la fréquence nominale ne dépasse pas 400 Hz, ou dont la tension nominale ne dépasse pas 1 500 V en courant continu. Le contenu du corrigendum d'avril 2016 et de mai 2018 a été pris en considération dans cet exemplaire.

General Information

Status
Published
Publication Date
11-Aug-2015
Current Stage
PPUB - Publication issued
Completion Date
12-Aug-2015
Ref Project

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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 d’antiparasitage –
Partie 3: Filtres passifs pour lesquels des essais de sécurité sont appropriés
IEC 60939-3:2015-08(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
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 d’antiparasitage –
Partie 3: Filtres passifs pour lesquels des essais de sécurité sont appropriés
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.160 ISBN 978-2-8322-2807-4

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 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

1.3.5 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 ........................................................................................... 19

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 ........................................................................ 20

2.2 Preferred values of ratings .................................................................................. 20

2.2.1 Rated voltage (U ) ...................................................................................... 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 Requalification 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

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IEC 60939-3:2015 © IEC 2015 – 3 –

4.1.5 Referee conditions ....................................................................................... 25

4.1.6 Reference conditions ................................................................................... 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 inductors 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 correction 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 to 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 Robustness 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

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– 4 – IEC 60939-3:2015 © IEC 2015

4.12.2 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 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 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 Requirements .............................................................................................. 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 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 overload ................................................................................................. 50

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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 Test 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 – combined 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 conditions ............................................................................................ 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 solvent 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 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 (normative) Circuit for the endurance test ............................................................. 69

Annex E (normative) Declaration of design ......................................................................... 70

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