CISPR 11:2024
(Main)Industrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement
Industrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement
CISPR 11:2024 applies to industrial, scientific and medical electrical equipment operating in the frequency range 0 Hz to 400 GHz and to domestic and similar appliances designed to generate and/or use locally radio-frequency energy. This document covers emission requirements related to radio-frequency (RF) disturbances in the frequency range of 9 kHz to 400 GHz. For ISM RF applications in the meaning of the definition found in the ITU Radio Regulations (2020) (see Definition 3.1.18), this document covers emission requirements related to radio-frequency disturbances in the frequency range of 9 kHz to 18 GHz. ISM equipment which incorporates radio transmit/receive functions (host equipment with radio functionality) is included in the scope of this document, see Annex F. However, the emission requirements in this document are not intended to be applicable to the intentional transmissions from a radio transmitter as defined by the ITU including their spurious emissions.
NOTE 1 This exclusion only applies to emissions from the intentional radio transmitter. However, combination emissions, for example emissions resulting from intermodulation between the radio and the non-radio subassemblies of the ISM equipment, are not subject to this exclusion.
NOTE 2 Emission requirements for induction cooking appliances are specified in CISPR 14-1.
Requirements for ISM RF lighting equipment and UV irradiators operating at frequencies within the ISM frequency bands defined by the ITU Radio Regulations are contained in this document.
Robots used for industrial, scientific and medical applications are in the scope of this document.
EXAMPLE Welding robots, spraying robots, handling robots, processing robots, assembly robots, medical robots, education and experimental robots. A comprehensive list of robots in the scope of this document is given on the IEC EMC zone.
NOTE 3 Flying robots, domestic helper robots, toy robots and entertainment robots are examples of robots in the scope of other CISPR standards.
Equipment covered by other CISPR product and product family emission standards are excluded from the scope of this document.
This seventh edition cancels and replaces the sixth edition published in 2015, Amendment 1:2016 and Amendment 2:2019. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) introduction of limits for radiated disturbances in the frequency range above 1 GHz for group 1 equipment in line with the requirements given in the generic emission standards;
b) introduction of limits for conducted disturbances on the wired network port in line with the requirements given in the generic emission standards;
c) introduction of requirements for equipment which incorporates radio transmit/receive functions;
d) introduction of definitions for various types of robots;
e) consideration of some particular conditions when measuring robots, such as measurement setups and operating modes of robots.
Appareils industriels, scientifiques et médicaux - Caractéristiques de perturbations radioélectriques - Limites et méthodes de mesure
La CISPR 11:2024 s'applique aux appareils industriels, scientifiques et électromédicaux qui fonctionnent dans la plage de fréquences de 0 Hz à 400 GHz, ainsi qu’aux appareils domestiques et similaires conçus pour produire et/ou utiliser, dans un espace réduit, de l'énergie radioélectrique. Le présent document couvre les exigences d’émission relatives aux perturbations radioélectriques dans la plage de fréquences de 9 kHz à 400 GHz. Pour les applications industrielles, scientifiques et médicales (ISM) à fréquences radioélectriques, au sens de la définition fournie par le règlement des radiocommunications de l'UIT (2020) (voir la Définition 3.1.18), le présent document couvre les exigences d’émission relatives aux perturbations à fréquences radioélectriques dans la plage de fréquences de 9 kHz à 18 GHz. Les appareils ISM qui intègrent des fonctions d’émission/réception radio (équipement hôte avec une fonctionnalité radio) sont inclus dans le domaine d’application du présent document, voir l’Annexe F. Toutefois, les exigences d’émission du présent document ne sont pas destinées à s’appliquer aux transmissions intentionnelles d’un émetteur radio tel que défini par l’UIT, y compris leurs émissions parasites.
NOTE 1 Cette exclusion s’applique uniquement aux émissions de l’émetteur radio intentionnel. Toutefois, les émissions combinées, par exemple les émissions qui résultent de l'intermodulation entre la radio et les sous-ensembles non radioélectriques de l'appareil ISM, ne sont pas soumises à cette exclusion.
NOTE 2 Les exigences d'émission pour les appareils de cuisson à induction sont spécifiées dans la CISPR 14‑1.
Les exigences relatives aux appareils d'éclairage ISM à fréquences radioélectriques et aux générateurs de rayonnement UV qui fonctionnent dans les bandes de fréquences ISM définies par le règlement des radiocommunications de l'UIT sont spécifiées dans le présent document. Les robots utilisés pour les applications industrielles, scientifiques et médicales relèvent du domaine d’application du présent document.
EXEMPLE Robots de soudage, robots de pulvérisation, robots de manutention, robots de traitement, robots d'assemblage, robots médicaux, robots éducatifs et expérimentaux. Une liste exhaustive des robots qui relèvent du domaine d’application de la présente norme est donnée dans la zone CEM de l’IEC.
NOTE 3 Les robots volants, les robots d'aide domestique, les robots jouets et les robots de divertissement sont des exemples de robots qui relèvent du domaine d’application des autres normes CISPR.
Les appareils couverts par d’autres normes de produits du CISPR et d’autres normes d’émission de famille de produits n’entrent pas dans le domaine d’application du présent document. tension et aux appareils de traction électrique.
Cette septième édition annule et remplace la sixième édition parue en 2015, l'Amendement 1:2016 et l'Amendement 2:2019. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) introduction de limites pour les perturbations rayonnées dans la plage de fréquences supérieure à 1 GHz pour les appareils du groupe 1, conformément aux exigences données dans les normes d'émission génériques;
b) introduction de limites pour les perturbations conduites sur l’accès de réseau câblé conformément aux exigences données dans les normes d'émission génériques;
c) Introduction d’exigences relatives aux appareils qui intègrent des fonctions d’émission/réception radio;
d) introduction de définitions pour les différents types de robots;
e) prise en considération de certaines conditions particulières lors de la mesure des robots, comme les configurations de mesure et les modes de fonctionnement des robots.
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CISPR 11 ®
Edition 7.0 2024-02
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INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
PRODUCT FAMILY EMC STANDARD
Industrial, scientific and medical equipment – Radio-frequency disturbance
characteristics – Limits and methods of measurement
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CISPR 11 ®
Edition 7.0 2024-02
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
PRODUCT FAMILY EMC STANDARD
Industrial, scientific and medical equipment – Radio-frequency disturbance
characteristics – Limits and methods of measurement
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.10 ISBN 978-2-8322-8316-5
– 2 – CISPR 11:2024 CMV © IEC 2024
CONTENTS
FOREWORD .7
INTRODUCTION . 10
1 Scope . 14
2 Normative references . 14
3 Terms, definitions and abbreviated terms . 16
3.1 Terms and definitions . 16
3.2 Abbreviated terms . 21
4 Frequencies designated for ISM use . 22
5 Classification of equipment . 23
5.1 Separation into groups . 23
5.2 Division into classes . 23
5.3 Documentation for the user . 23
6 Limits of electromagnetic disturbances . 24
6.1 General . 24
6.2 Group 1 equipment measured on a test site . 24
6.2.1 Limits for conducted disturbances . 24
6.2.2 Limits of electromagnetic radiation disturbance . 29
6.3 Group 2 equipment measured on a test site . 32
6.3.1 Limits for conducted disturbances . 32
6.3.2 Limits of electromagnetic radiation disturbance . 33
6.4 Group 1 and group 2 class A equipment measured in situ . 39
6.4.1 Limits for conducted disturbances . 39
6.4.2 Limits of electromagnetic radiation disturbance . 39
7 Measurement requirements . 42
7.1 General . 42
7.2 Ambient noise . 42
7.3 Measuring equipment . 43
7.3.1 Measuring instruments. 43
7.3.2 Artificial network (AN) . 43
7.3.3 Voltage probe . 44
7.3.4 Antennas . 44
7.3.5 Artificial hand . 45
7.4 Frequency measurement. 46
7.5 Configuration of equipment under test . 46
7.5.1 General . 46
7.5.2 Interconnecting EUT cables and components . 49
7.5.3 Connection to the electricity supply network on a test site . 50
7.5.4 Measurements of robots . 53
7.6 Load conditions of the EUT . 57
7.6.1 General . 57
7.6.2 Medical equipment . 57
7.6.3 Industrial equipment . 59
7.6.4 Scientific, laboratory and measuring equipment . 59
7.6.5 Microwave cooking appliances . 59
7.6.6 Other equipment in the frequency range 1 GHz to 18 GHz . 59
7.6.7 Electric welding equipment . 60
7.6.8 ISM RF lighting equipment . 60
7.6.9 Medium voltage (MV) and high voltage (HV) switchgear . 60
7.6.10 Grid connected power converters . 60
7.6.11 Robots . 61
7.7 Recording of test-site measurement results . 61
7.7.1 General . 61
7.7.2 Conducted emissions. 62
7.7.3 Radiated emissions . 62
8 Special provisions for test site measurements (9 kHz to 1 GHz) . 62
8.1 Ground planes . 62
8.2 Measurement of conducted disturbances . 62
8.2.1 General . 62
8.2.2 Measurements on grid connected power converters . 63
8.2.3 Handheld equipment which is normally operated without an earth
connection . 68
8.3 OATS and SAC for measurements in the range 9 kHz to 1 GHz . 68
8.3.1 General . 68
8.3.2 Validation of the radiation test site (9 kHz to 1 GHz) . 69
8.3.3 Disposition of equipment under test (9 kHz to 1 GHz) . 69
8.3.4 Radiation measurements (9 kHz to 1 GHz) . 70
8.4 Alternative radiation test sites for the frequency range 30 MHz to 1 GHz . 70
8.5 FAR for measurements in the range 30 MHz to 1 GHz . 70
9 Radiation measurements: 1 GHz to 18 GHz . 70
9.1 Test arrangement . 70
9.2 Receiving antenna . 71
9.3 Validation and calibration of test site . 71
9.4 Measuring procedure . 71
9.4.1 General . 71
9.4.2 Operating conditions of the EUT (group 2 equipment only) . 72
9.4.3 Peak measurements (group 2 equipment only) . 72
9.4.4 Weighted measurements (group 2 equipment only) . 73
10 Measurement in situ . 74
11 Safety precautions for emission measurements on ISM RF equipment . 75
12 Measurement uncertainty . 75
Annex A (informative) Examples of equipment classification . 76
A.1 General . 76
A.2 Group 1 equipment . 76
A.2.1 General Group 1 equipment . 76
A.2.2 Detailed Group 1 equipment . 76
A.3 Group 2 equipment . 77
A.3.1 General Group 2 equipment . 77
A.3.2 Detailed Group 2 equipment . 77
Annex B (informative) Precautions to be taken in the use of a spectrum analyzer
(see 7.3.1) .
Annex B (normative) Measurement of electromagnetic radiation disturbance in
the presence of signals from radio transmitters . 79
Annex D (informative) Propagation of interference from industrial radio-frequency
equipment at frequencies between 30 MHz and 300 MHz .
– 4 – CISPR 11:2024 CMV © IEC 2024
Annex C (informative) Recommendations of CISPR for protection of certain radio
services in particular areas . 81
C.1 General . 81
C.2 Recommendations for protection of safety-related radio services . 81
C.3 Recommendations for protection of specific sensitive radio services . 83
Annex F (informative) Frequency bands allocated for safety-related radio services. 71
Annex G (informative) Frequency bands allocated for sensitive radio services . 72
Annex H (informative) Statistical assessmen
...
CISPR 11 ®
Edition 7.0 2024-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
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INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
PRODUCT FAMILY EMC STANDARD
NORME DE FAMILLE DE PRODUITS EN CEM
Industrial, scientific and medical equipment – Radio-frequency disturbance
characteristics – Limits and methods of measurement
Appareils industriels, scientifiques et médicaux – Caractéristiques de
perturbations radioélectriques – Limites et méthodes de mesure
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International Standards for all electrical, electronic and related technologies.
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CISPR 11 ®
Edition 7.0 2024-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
PRODUCT FAMILY EMC STANDARD
NORME DE FAMILLE DE PRODUITS EN CEM
Industrial, scientific and medical equipment – Radio-frequency disturbance
characteristics – Limits and methods of measurement
Appareils industriels, scientifiques et médicaux – Caractéristiques de
perturbations radioélectriques – Limites et méthodes de mesure
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10 ISBN 978-2-8322-8166-6
– 2 – CISPR 11:2024 © IEC 2024
CONTENTS
FOREWORD . 7
INTRODUCTION . 10
1 Scope . 11
2 Normative references . 11
3 Terms, definitions and abbreviated terms . 13
3.1 Terms and definitions . 13
3.2 Abbreviated terms . 18
4 Frequencies designated for ISM use . 19
5 Classification of equipment . 20
5.1 Separation into groups . 20
5.2 Division into classes . 20
5.3 Documentation for the user . 20
6 Limits of electromagnetic disturbances . 21
6.1 General . 21
6.2 Group 1 equipment measured on a test site . 21
6.2.1 Limits for conducted disturbances . 21
6.2.2 Limits of electromagnetic radiation disturbance. 26
6.3 Group 2 equipment measured on a test site . 29
6.3.1 Limits for conducted disturbances . 29
6.3.2 Limits of electromagnetic radiation disturbance. 30
6.4 Group 1 and group 2 class A equipment measured in situ . 36
6.4.1 Limits for conducted disturbances . 36
6.4.2 Limits of electromagnetic radiation disturbance. 36
7 Measurement requirements . 39
7.1 General . 39
7.2 Ambient noise . 39
7.3 Measuring equipment . 40
7.3.1 Measuring instruments. 40
7.3.2 Artificial network (AN) . 40
7.3.3 Voltage probe . 41
7.3.4 Antennas . 41
7.3.5 Artificial hand . 42
7.4 Frequency measurement . 42
7.5 Configuration of equipment under test. 42
7.5.1 General . 42
7.5.2 EUT cables and components . 45
7.5.3 Connection to the electricity supply network on a test site . 46
7.5.4 Measurements of robots . 49
7.6 Load conditions of the EUT . 53
7.6.1 General . 53
7.6.2 Medical equipment . 53
7.6.3 Industrial equipment . 55
7.6.4 Scientific, laboratory and measuring equipment . 55
7.6.5 Microwave cooking appliances . 55
7.6.6 Other equipment in the frequency range 1 GHz to 18 GHz . 55
7.6.7 Electric welding equipment . 56
7.6.8 ISM RF lighting equipment . 56
7.6.9 Medium voltage (MV) and high voltage (HV) switchgear . 56
7.6.10 Grid connected power converters . 56
7.6.11 Robots . 57
7.7 Recording of test-site measurement results . 57
7.7.1 General . 57
7.7.2 Conducted emissions . 58
7.7.3 Radiated emissions . 58
8 Special provisions for test site measurements (9 kHz to 1 GHz) . 58
8.1 Ground planes . 58
8.2 Measurement of conducted disturbances . 58
8.2.1 General . 58
8.2.2 Measurements on grid connected power converters . 59
8.2.3 Handheld equipment which is normally operated without an earth
connection . 63
8.3 OATS and SAC for measurements in the range 9 kHz to 1 GHz . 63
8.3.1 General . 63
8.3.2 Validation of the radiation test site (9 kHz to 1 GHz) . 64
8.3.3 Disposition of equipment under test (9 kHz to 1 GHz) . 64
8.3.4 Radiation measurements (9 kHz to 1 GHz) . 65
8.4 Alternative radiation test sites for the frequency range 30 MHz to 1 GHz . 65
8.5 FAR for measurements in the range 30 MHz to 1 GHz . 65
9 Radiation measurements: 1 GHz to 18 GHz . 65
9.1 Test arrangement . 65
9.2 Receiving antenna . 66
9.3 Validation of test site . 66
...
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