Specification for radio disturbance and immunity measuring apparatus and methods - Part 2-1: Methods of measurement of disturbances and immunity - Conducted disturbance measurements

CISPR 16-2-1:2014 is designated a basic standard, which specifies the methods of measurement of disturbance phenomena in general in the frequency range 9 kHz to 18 GHz and especially of conducted disturbance phenomena in the frequency range 9 kHz to 30 MHz. With a CDNE, the frequency range is 9 kHz to 300 Hz. This third edition cancels and replaces the second edition published in 2008, Amendment 1:2010 and Amendment 2:2013. This edition constitutes a technical revision which includes added methods of measurement using a new type of ancillary equipment: the CDNE. Key Words: electromagnetic compatibility, EMC, emissions, immunity
The contents of the corrigendum 1 of August 2020 have been included in this copy.

Spécifications des méthodes et des appareils de mesure des perturbations radioélectriques et de l'immunité aux perturbations radioélectriques - Partie 2-1: Méthodes de mesure des perturbations et de l'immunité - Mesures des perturbations conduites

La CISPR 16-2-1:2014 est une norme fondamentale qui spécifie les méthodes de mesure des phénomènes perturbateurs en général, dans la gamme de fréquences de 9 kHz à 18 GHz et spécialement les perturbations conduites dans la gamme de fréquences de 9 kHz à 30 MHz. Avec un CDNE, la gamme de fréquences est comprise entre 9 kHz et 300 Hz. Cette troisième édition annule et remplace la deuxième édition parue en 2008, l'Amendement 1:2010 et l'Amendement 2:2013. Cette édition constitue une révision technique qui inclut des méthodes de mesure utilisant un nouveau type d'équipement d'appoint dont l'acronyme est: CDNE. Mots clé: compatibilité électromagnétique, CEM, EMC, émissions, immunité
Le contenu du corrigendum 1 d'août 2020 a été pris en considération dans cet exemplaire.

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Status
Published
Publication Date
25-Feb-2014
Current Stage
PPUB - Publication issued
Start Date
26-Feb-2014
Completion Date
26-Feb-2014
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CISPR 16-2-1
Edition 3.0 2014-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
BASIC EMC PUBLICATION
PUBLICATION FONDAMENTALE EN CEM
Specification for radio disturbance and immunity measuring apparatus and
methods –
Part 2-1: Methods of measurement of disturbances and immunity – Conducted
disturbance measurements
Spécifications des méthodes et des appareils de mesure des perturbations
radioélectriques et de l'immunité aux perturbations radioélectriques –
Partie 2-1: Méthodes de mesure des perturbations et de l'immunité – Mesures
des perturbations conduites
CISPR 16-2-1:2014-02(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
CISPR 16-2-1
Edition 3.0 2014-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
BASIC EMC PUBLICATION
PUBLICATION FONDAMENTALE EN CEM
Specification for radio disturbance and immunity measuring apparatus and
methods –
Part 2-1: Methods of measurement of disturbances and immunity – Conducted
disturbance measurements
Spécifications des méthodes et des appareils de mesure des perturbations
radioélectriques et de l'immunité aux perturbations radioélectriques –
Partie 2-1: Méthodes de mesure des perturbations et de l'immunité – Mesures
des perturbations conduites
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XE
ICS 33.100.10, 33.100.20 ISBN 978-2-8322-1445-9

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 – CISPR 16-2-1:2014 © IEC 2014
CONTENTS

FOREWORD ........................................................................................................................... 8

1 Scope ............................................................................................................................ 10

2 Normative references .................................................................................................... 10

3 Terms, definitions and abbreviations ............................................................................. 11

3.1 Terms and definitions ....................................................................................... 11

3.2 Abbreviations ................................................................................................... 16

4 Types of disturbance to be measured ............................................................................ 17

4.1 General ............................................................................................................ 17

4.2 Types of disturbance ........................................................................................ 17

4.3 Detector functions ............................................................................................ 17

5 Connection of measuring equipment .............................................................................. 18

5.1 General ............................................................................................................ 18

5.2 Connection of ancillary equipment ................................................................... 18

5.3 Connections to RF reference ground ................................................................ 18

5.4 Connection between the EUT and the artificial mains network .......................... 19

6 General measurement requirements and conditions ...................................................... 20

6.1 General ............................................................................................................ 20

6.2 Disturbance not produced by the equipment under test .................................... 20

6.2.1 General .......................................................................................... 20

6.2.2 Compliance testing ......................................................................... 20

6.3 Measurement of continuous disturbance .......................................................... 20

6.3.1 Narrowband continuous disturbance ............................................... 20

6.3.2 Broadband continuous disturbance ................................................. 20

6.3.3 Use of spectrum analyzers and scanning receivers ......................... 21

6.4 EUT arrangement and measurement conditions ............................................... 21

6.4.1 EUT arrangement ........................................................................... 21

6.4.2 Normal load conditions ................................................................... 23

6.4.3 Duration of operation ...................................................................... 23

6.4.4 Running-in/warm-up time ................................................................ 23

6.4.5 Supply ............................................................................................ 24

6.4.6 Mode of operation ........................................................................... 24

6.4.7 Operation of multifunction equipment .............................................. 24

6.4.8 Determination of EUT arrangement(s) that maximize(s)

emissions ....................................................................................... 24

6.4.9 Recording of measurement results .................................................. 24

6.5 Interpretation of measuring results ................................................................... 24

6.5.1 Continuous disturbance .................................................................. 24

6.5.2 Discontinuous disturbance .............................................................. 25

6.5.3 Measurement of the duration of disturbances.................................. 25

6.6 Measurement times and scan rates for continuous disturbance ........................ 25

6.6.1 General .......................................................................................... 25

6.6.2 Minimum measurement times ......................................................... 25

6.6.3 Scan rates for scanning receivers and spectrum analyzers ............. 26

6.6.4 Scan times for stepping receivers ................................................... 27

6.6.5 Strategies for obtaining a spectrum overview using the peak

detector .......................................................................................... 28

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CISPR 16-2-1:2014 © IEC 2014 – 3 –

6.6.6 Timing considerations using FFT-based instruments ....................... 31

7 Measurement of disturbances conducted along leads, 9 kHz to 30 MHz ........................ 33

7.1 General ............................................................................................................ 33

7.2 Measuring equipment (receivers, etc.) ............................................................. 33

7.2.1 General .......................................................................................... 33

7.2.2 Use of detectors for conducted disturbance measurements ............ 33

7.3 Ancillary measuring equipment ........................................................................ 34

7.3.1 General .......................................................................................... 34

7.3.2 Artificial networks (ANs) ................................................................. 34

7.3.3 Voltage probes ............................................................................... 34

7.3.4 Current probes ............................................................................... 35

7.4 Equipment under test configuration .................................................................. 35

7.4.1 Arrangement of the EUT and its connection to the AN .................... 35

7.4.2 Procedure for the measurement of unsymmetric disturbance

voltages with V-networks (AMNs) ................................................... 40

7.4.3 Measurement of common mode voltages at differential mode

signal terminals .............................................................................. 47

7.4.4 Measurements using voltage probes ............................................... 48

7.4.5 Measurement using a capacitive voltage probe (CVP) .................... 51

7.4.6 Measurements using current probes ............................................... 51

7.5 System test configuration for conducted emissions measurements .................. 51

7.5.1 General approach to system measurements ................................... 51

7.5.2 System configuration ...................................................................... 52

7.5.3 Measurements of interconnecting lines ........................................... 54

7.5.4 Decoupling of system components .................................................. 55

7.6 In situ measurements ....................................................................................... 55

7.6.1 General .......................................................................................... 55

7.6.2 Reference ground ........................................................................... 55

7.6.3 Measurement with voltage probes ................................................... 56

7.6.4 Selection of measuring points ......................................................... 56

8 Automated measurement of disturbances ...................................................................... 56

8.1 Precautions for automating measurements....................................................... 56

8.2 Generic measurement procedure ..................................................................... 57

8.3 Prescan measurements ................................................................................... 57

8.4 Data reduction ................................................................................................. 58

8.5 Disturbance maximization and final measurement ............................................ 58

8.6 Post processing and reporting .......................................................................... 59

8.7 Disturbance measurement strategies with FFT-based measuring

instruments ...................................................................................................... 59

9 Test set-up and measurement procedure using the CDNE in the frequency range

30 MHz to 300 MHz ....................................................................................................... 59

9.1 General ............................................................................................................ 59

9.2 Test set-up ...................................................................................................... 60

9.3 Measurement procedure .................................................................................. 62

Annex A (informative) Guidelines for connection of electrical equipment to the artificial

mains network ...................................................................................................................... 63

A.1 General ............................................................................................................ 63

A.2 Classification of the possible cases .................................................................. 63

A.2.1 Well-shielded but poorly filtered EUT (Figures A.1 and A.2) ............ 63

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– 4 – CISPR 16-2-1:2014 © IEC 2014
A.2.2 Well-filtered but incompletely shielded EUT (Figures A.3 and

A.4) ................................................................................................ 64

A.2.3 Practical general case .................................................................... 64

A.3 Method of grounding ........................................................................................ 66

A.4 Conditions of grounding ................................................................................... 66

A.4.1 General .......................................................................................... 66

A.4.2 Classification of typical testing conditions ....................................... 67

A.5 Connection of the AMN as a voltage probe ...................................................... 68

Annex B (informative) Use of spectrum analyzers and scanning receivers ........................... 70

B.1 General ............................................................................................................ 70

B.2 Overload .......................................................................................................... 70

B.3 Linearity test .................................................................................................... 70

B.4 Selectivity ........................................................................................................ 70

B.5 Normal response to pulses ............................................................................... 70

B.6 Peak detection ................................................................................................. 70

B.7 Frequency scan rate ........................................................................................ 71

B.8 Signal interception ........................................................................................... 71

B.9 Average detection ............................................................................................ 71

B.10 Sensitivity ........................................................................................................ 71

B.11 Amplitude accuracy .......................................................................................... 72

Annex C (informative) Decision tree for use of detectors for conducted disturbance

measurements ...................................................................................................................... 73

Annex D (informative) Scan rates and measurement times for use with the average

detector ................................................................................................................................ 75

D.1 General ............................................................................................................ 75

D.2 Suppression of impulsive disturbance .............................................................. 75

D.2.1 General .......................................................................................... 75

D.2.2 Suppression of impulsive disturbance by digital averaging .............. 76

D.3 Suppression of amplitude modulation ............................................................... 76

D.4 Measurement of slowly intermittent, unsteady or drifting narrowband

disturbances .................................................................................................... 76

D.5 Recommended procedure for automated or semi-automated

measurements ................................................................................................. 78

Annex E (informative) Guidelines for the improvement of the test set-up with ANs ............... 79

E.1 In situ verification of the AN impedance and voltage division factor .................. 79

E.2 PE chokes and sheath current absorbers for the suppression of ground

loops ................................................................................................................ 82

Annex F (normative) Determination of suitability of spectrum analyzers for compliance

tests ..................................................................................................................................... 84

Annex G (informative) Basic guidance for measurements on telecommunications ports ....... 85

G.1 Limits ............................................................................................................... 85

G.2 Combination of current probe and capacitive voltage probe (CVP) ................... 86

G.3 Basic ideas of the capacitive voltage probe ...................................................... 86

G.4 Combination of current limit and voltage limit ................................................... 87

G.5 Adjusting the TCM impedance with ferrites ...................................................... 89

G.6 Ferrite specifications for use with methods of Annex H .................................... 89

Annex H (normative) Specific guidance for conducted disturbance measurements on

telecommunication ports ....................................................................................................... 92

H.1 General ............................................................................................................ 92

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CISPR 16-2-1:2014 © IEC 2014 – 5 –

H.2 Characteristics of AANs ................................................................................... 93

H.3 Characteristics of current probe ....................................................................... 94

H.4 Characteristics of capacitive voltage probe ...................................................... 94

H.5 Procedures for common mode measurements .................................................. 94

H.5.1 General .......................................................................................... 94

H.5.2 Measurement procedure using AANs .............................................. 94

H.5.3 Measurement procedure using a 150 Ω load connected to the

outside surface of the cable screen ................................................ 95

H.5.4 Measurement procedure using a combination of current probe

and capacitive voltage probe .......................................................... 96

H.5.5 Measurement of cable, ferrite and AE common mode

impedance ...................................................................................... 97

Annex I (informative) Examples of AANs and ANs for screened cables ................................ 99

Bibliography ........................................................................................................................ 108

Figure 1 – Example of a recommended test set-up with PE chokes with three AMNs

and a sheath current absorber on the RF cable ..................................................................... 19

Figure 2 – Measurement of a combination of a CW signal (“NB”) and an impulsive

signal (“BB”) using multiple sweeps with maximum hold ........................................................ 28

Figure 3 – Example of a timing analysis ................................................................................ 29

Figure 4 – A broadband spectrum measured with a stepped receiver .................................... 30

Figure 5 – Intermittent narrowband disturbances measured using fast short repetitive

sweeps with maximum hold function to obtain an overview of the disturbance spectrum ....... 30

Figure 6 – FFT scan in segments .......................................................................................... 32

Figure 7 – Frequency resolution enhanced by FFT-based measuring instrument .................. 32

Figure 8 – Illustration of current I .................................................................................. 35

CCM
Figure 9 – Test configuration: table-top equipment for conducted disturbance

measurements on power mains ............................................................................................. 37

Figure 10 – Arrangement of EUT and AMN at 40 cm distance, with a) vertical RGP

and b) horizontal RGP .......................................................................................................... 38

Figure 11 – Optional example test configuration for an EUT with only a power cord

attached ............................................................................................................................... 38

Figure 12 – Test configuration: floor-standing equipment (see 7.4.1 and 7.5.2.3) .................. 39

Figure 13 – Example test configuration: floor-standing and table-top equipment (see

7.4.1 and 7.5.2.3) ................................................................................................................. 40

Figure 14 – Schematic of disturbance voltage measurement configuration (see also

7.5.2.3) ................................................................................................................................. 42

Figure 15 – Equivalent circuit for measurement of unsymmetric disturbance voltage for

safety-class I (grounded) EUT............................................................................................... 43

Figure 16 – Equivalent circuit for measurement of unsymmetric disturbance voltage for

safety-class II (ungrounded) EUT .......................................................................................... 44

Figure 17 – RC element for artificial hand ............................................................................. 46

Figure 18 – Portable electric drill with artificial hand ............................................................. 46

Figure 19 – Portable electric saw with artificial hand ............................................................. 46

Figure 20 – Measuring example for voltage probes ............................................................... 49

Figure 21 – Measurement arrangement for two-terminal regulating controls .......................... 50

Figure 22 – Generic process to help reduce measurement time ............................................ 57

Figure 23 – Test set-up for measurement of an EUT with one cable ...................................... 61

---------------------- Page: 7 ----------------------
– 6 – CISPR 16-2-1:2014 © IEC 2014
Figure 24 – Test set-up for measurement of an EUT with two cables connected

adjacent surfaces of the EUT ................................................................................................ 61

Figure 25 – Test set-up for measurement of an EUT with two cables connected on the

same surface of the EUT ...................................................................................................... 62

Figure A.1 – Basic schematic of well-shielded but poorly filtered EUT ................................... 63

Figure A.2 – Detail of well-shielded but poorly filtered EUT ................................................... 64

Figure A.3 – Well-filtered but incompletely shielded EUT ...................................................... 64

Figure A.4 – Well-filtered but incompletely shielded EUT, with U reduced to zero ............... 64

Figure A.5 – Disturbance supply through shielded conductors .............................................. 65

Figure A.6 – Disturbance supply through unshielded but filtered conductors ......................... 65

Figure A.7 – Disturbance supply through ordinary conductors ............................................... 66

Figure A.8 – AMN configurations .......................................................................................... 68

Figure C.1 – Decision tree for optimizing speed of conducted disturbance

measurements with peak, quasi-peak and average detectors ................................................ 73

Figure D.1 – Weighting function of a 10 ms pulse for peak (“PK”) and average

detections with (“CISPR AV”) and without (“AV”) peak reading; meter time constant

160 ms.................................................................................................................................. 77

Figure D.2 – Weighting
...

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