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.
General Information
Relations
Overview
CISPR 11:2024 (IEC) - Industrial, scientific and medical equipment – Radio‑frequency disturbance characteristics – Limits and methods of measurement - is the 7th edition product‑family EMC standard that specifies emission requirements and measurement methods for ISM and similar equipment. It applies to equipment operating across 0 Hz to 400 GHz with emission requirements covering 9 kHz to 400 GHz (and 9 kHz to 18 GHz for ISM RF applications per ITU definitions). The standard defines limits and detailed test procedures for both conducted and radiated RF disturbances and addresses modern equipment types including robots and ISM devices that incorporate radio transmit/receive functions.
Key Topics and Requirements
- Frequency coverage: Emission measurements from 9 kHz to 400 GHz (ISM-specific to 9 kHz–18 GHz).
- Equipment classification: Group‑ and class‑based segregation (Group 1 and Group 2; Class A/B distinctions) and documentation requirements for users.
- Emission limits: Radiated and conducted disturbance limits aligned with generic EMC standards; new limits introduced above 1 GHz for Group 1 equipment and on wired network ports.
- Measurement methods: Test‑site setups (OATS, SAC, FAR), in‑situ measurement procedures, antenna selection, spectrum/signal analysis, and measurement uncertainty recording.
- Special topics: Artificial Network (AN) implementations (including Annex I for DC power ports of semiconductor power converters), artificial hand probe, mitigation of saturation in transformer‑less converters, and procedures for grid‑connected power converters (GCPC).
- Robots and moving equipment: Definitions for robot types and measurement provisions for movable robotic boundaries, operating modes, and test configurations.
- Radio functionality: Requirements for host equipment with radio transmit/receive functions (Annex F), and handling of combination emissions (e.g., intermodulation between radio and non‑radio subassemblies).
- Exclusions: Intentional transmissions from licensed radio transmitters (and their spurious emissions) are not covered, except where combination emissions occur.
Applications and Who Uses CISPR 11:2024
CISPR 11:2024 is essential for:
- EMC engineers and test laboratories performing radiated and conducted emissions testing and type‑approval testing.
- Manufacturers of ISM equipment, industrial and medical devices, ISM lighting and UV irradiators, welding/processing and robotic systems seeking product compliance.
- Product designers and integrators who need to design for EMC, specify filters/ANs, and validate grid‑connected converters.
- Regulatory bodies and compliance managers assessing conformity with international EMC requirements. Typical uses include product development EMC checks, compliance testing, pre‑compliance screening, and documentation for market access.
Related Standards
- CISPR 14‑1 (emission requirements for induction cooking appliances)
- Generic EMC standards referenced for limits and measurement alignment
- Other CISPR product and product‑family standards (products covered by other CISPR standards are excluded from CISPR 11 scope)
Keywords: CISPR 11:2024, ISM equipment, RF disturbance, radiated emissions, conducted emissions, EMC testing, robots, grid‑connected power converters, artificial network.
Standards Content (Sample)
CISPR 11 ®
Edition 7.0 2024-02
COMMENTED VERSION
INTERNATIONAL
STANDARD
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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
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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 assessment of series produced equipment against
the requirements of CISPR standards . 74
Annex I (normative) Artificial Network (AN) for the assessment of disturbance
voltages at d.c. power ports of semiconductor power converters . 79
Annex D (informative) Measurements on Grid Connected Power Converters (GCPC) –
Setups for an effective test site configuration . 100
D.1 General information and purpose . 100
D.2 Setup of the test site . 100
D.2.1 Block diagram of test site . 100
D.2.2 DC power supply . 101
D.2.3 AC power source . 101
D.2.4 Other components . 102
D.3 Other test setups . 102
D.3.1 Configuration comprising laboratory AC power source and resistive load . 102
D.3.2 Configuration with reverse power flow into the AC mains . 104
Annex E (informative) Test site configuration and instrumentation – Guidance on
prevention of saturation effects in mitigation filters of transformer-less power
converters during type tests according to this standard. 106
E.1 General information and purpose . 106
E.2 Recommendations for avoidance of saturation effects in the range 9 kHz to
150 kHz . 107
E.3 Detailed advice . 107
E.3.1 General . 107
E.3.2 Insert of series inductors (or common mode chokes) in the laboratory's
DC power supply chain . 108
E.3.3 Employment of additional common mode decoupling capacitors at
the interface between the AE port of the DC-AN and the laboratory DC
power supply port allocated in the test environment . 109
E.4 Background information . 110
Annex F (normative) Additional requirements for equipment with radio functionality . 113
F.1 Configuration of the EUT during emission tests. 113
F.2 Radiated emissions . 113
F.3 Conducted emissions . 113
Bibliography . 115
List of comments . 118
Figure 1 – Circuit for disturbance voltage measurements on mains supply . 44
Figure 2 – Artificial hand, RC element . 46
Figure 3 – Example for a typical cable arrangement for measurements of radiated
disturbances in 3 m separation distance, Table-top EUT. 48
Figure 4 – Example for a typical test set up for measurement of conducted and/or
radiated disturbances from a floor standing EUT, 3D view . 49
Figure 5 – EUT boundary determination for radiated disturbance measurements of
robots with extendable/moving arm . 53
Figure 6 – Example of a typical test setup for conducted disturbance measurement on
a floor-standing robot system . 54
Figure 7 – Example of a typical test setup for radiated disturbance measurement on a
floor-standing robot system . 55
Figure 8 – Example of a typical test setup for conducted disturbance measurement on
a combination robot system . 56
Figure 9 – Example of a typical test setup for radiated disturbance measurement on a
combination robot system . 57
Figure 10 – Disposition of medical equipment (capacitive type) and dummy load . 58
Figure 11 – Typical arrangement for measurement of conducted disturbances at LV DC
power ports with the DC-AN used as termination and decoupling unit to the laboratory
DC power source . 65
Figure 12 – Typical arrangement for measurement of conducted disturbances at LV DC
power ports with the DC-AN used as termination and voltage probe . 66
Figure 13 – Typical arrangement for measurement of conducted disturbances at LV DC
power ports with the DC-AN used as voltage probe and with a current probe – 2D
diagram . 67
Figure 14 – Typical arrangement for measurement of conducted disturbances at LV DC
power ports with a DC-AN used as voltage probe and with a current probe – 3D
diagram . 67
Figure 15 – Radiation test site . 69
Figure 16 – Minimum size of metal ground plane . 69
Figure 17 – Decision tree for the measurement of emissions from 1 GHz to 18 GHz of
group 2 equipment operating at frequencies above 400 MHz . 72
Figure D.1 – Setup of the test site (Case 1) – 2D diagram Test setup for Case 1
(schematic) . 100
Figure D.2 – Setup of the test site (Case 1) – 3D diagram Test setup for Case 1 (3D view) 101
Figure D.3 – Setup of the test site (Case 2) – 2D diagram Test setup for Case 2
(schematic) . 103
Figure D.4 – Setup of the test site (Case 2) – 3D diagram Test setup for Case 2 (3D view) 103
Figure D.5 – Setup of the test site (Case 3) – 2D diagram Test setup for Case 3
(schematic) . 104
Figure D.6 – Setup of the test site (Case 3) – 3D diagram Test setup for Case 3 (3D view) 105
Figure E.1 – Flow of the common mode RF current at test site configuration level . 108
Figure E.2 – Blocking of flow of common mode RF current by insert of series inductors . 109
Figure E.3 – Blocking of flow of common mode RF current by employment of additional
CM decoupling capacitors . 109
Figure E.4 – CM termination impedance at the EUT port of a DC-AN – Magnitude-
versus-frequency characteristic in the range 3 kHz to 30 MHz, Example . 110
Figure E.5 – Prevention of saturation of mitigation filters by use of additional decoupling
capacitors . 111
Figure E.6 – Change in the resonant frequency caused by the increase and decrease in
the decoupling capacitor's capacitance . 111
Figure E.7 – DC-AN circuit example where capacitance of blocking capacitors of the LC
decoupling circuit can be increased or decreased . 112
Table 1 – Frequencies in the radio-frequency (RF) range designated by ITU for use as
fundamental ISM frequencies . 22
– 6 – CISPR 11:2024 CMV © IEC 2024
Table 2 – Disturbance voltage limits for class A group 1 equipment measured on a test
site (AC mains power port) . 26
Table 3 – Limits for conducted disturbances of class A group 1 equipment measured on
a test site (DC power port). 27
Table 4 – Disturbance voltage limits for class B group 1 equipment measured on a test
site (AC mains power port) . 27
Table 5 – Disturbance voltage limits for class B group 1 equipment measured on a test
site (DC power port) . 28
Table 6 – Applicability of measurements at DC power ports . 28
Table 7 – Limits for conducted disturbances measured on a test site (wired network
port) . 29
Table 8 – Electromagnetic radiation disturbance limits for class A group 1 equipment
measured on a test site . 30
Table 9 – Electromagnetic radiation disturbance limits for class B group 1 equipment
measured on a test site . 30
Table 10 – Required highest frequency for radiated measurements . 31
Table 11 – Electromagnetic radiation disturbance limits for group 1 equipment measured
on a test site . 32
Table 12 – Disturbance voltage limits for class A group 2 equipment measured on a test
site (AC mains power port) . 33
Table 13 – Disturbance voltage limits for class B group 2 equipment measured on a test
site (AC mains power port) . 33
Table 14 – Electromagnetic radiation disturbance limits for class A group 2 equipment
measured on a test site . 35
Table 15 – Electromagnetic radiation disturbance limits for class A EDM and arc welding
equipment measured on a test site . 36
Table 16 – Electromagnetic radiation disturbance limits for class B group 2 equipment
measured on a test site . 37
Table 17 – Electromagnetic radiation disturbance peak limits for group 2 equipment
operating at frequencies above 400 MHz . 38
Table 18 – Electromagnetic radiation disturbance weighted limits for group 2 equipment
operating at frequencies above 400 MHz . 38
–1
Table 19 – Electromagnetic radiation disturbance APD level corresponding to 10 limits
for class B group 2 equipment operating at frequencies above 400 MHz . 39
Table 20 – Electromagnetic radiation disturbance limits for class A group 1 equipment
measured in situ . 40
Table 21 – Electromagnetic radiation disturbance limits for class A group 2 equipment
measured in situ . 41
Table 22 – Operation modes for fixed robots . 61
Table 23 – Operation modes for mobile robots . 61
Table 24 – Frequency subranges to be used for weighted measurements . 73
Table C.1 – Limits for electromagnetic radiation disturbances for in situ measurements
to protect specific safety-related radio services in particular areas . 81
Table C.2 – Frequency bands allocated for safety-related radio services. 82
Table C.3 – Frequency bands allocated for sensitive radio services . 84
Table F.1 – Disturbance voltage and current limits for group 1 and group 2 equipment
measured on a test site (antenna port) . 114
INTERNATIONAL ELECTROTECHNICAL COMMISSION
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
_____________
INDUSTRIAL, SCIENTIFIC AND MEDICAL EQUIPMENT –
RADIO-FREQUENCY DISTURBANCE CHARACTERISTICS –
LIMITS AND METHODS OF MEASUREMENT
FOREWORD
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This commented version (CMV) of the official standard CISPR 11:2024 edition 7.0 allows
the user to identify the changes made to the previous
CISPR 11:2015+AMD1:2016+AMD2:2019 CSV edition 6.2. Furthermore, comments from
CISPR Subcommittee B experts are provided to explain the reasons of the most relevant
changes, or to clarify any part of the content.
A vertical bar appears in the margin wherever a change has been made. Additions are in
green text, deletions are in strikethrough red text. Experts' comments are identified by a
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This publication contains the CMV and the official standard. The full list of comments is
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– 8 – CISPR 11:2024 CMV © IEC 2024
International Standard CISPR 11 has been prepared by CISPR Subcommittee B: Interference
relating to industrial, scientific and medical radio-frequency apparatus, to other (heavy)
industrial equipment, to overhead power lines, to high voltage equipment and to electric traction.
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.
The text of this document is based on the following documents:
Draft Report on voting
CIS/B/831/FDIS CIS/B/837/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
This document has the status of a Product Family EMC standard in accordance with IEC
Guide 107, Electromagnetic compatibility – Guide to the drafting of electromagnetic
compatibility publications (2014).
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
The main content of this document is based on CISPR Recommendation No. 39/2 given below:
RECOMMENDATION No. 39/2
Limits and methods of measurement of electromagnetic disturbance characteristics
of industrial, scientific and medical (ISM) radio-frequency equipment
The CISPR
CONSIDERING
a) that ISM RF equipment is an important source of disturbance;
b) that methods of measuring such disturbances have been prescribed by the CISPR;
c) that certain frequencies are designated by the International Telecommunication Union
(ITU) for unrestricted radiation from ISM equipment,
RECOMMENDS
that the latest edition of CISPR 11 be used for the application of limits and methods of
measurement of ISM equipment.
– 10 – CISPR 11:2024 CMV © IEC 2024
INTRODUCTION
This CISPR publication contains, amongst common requirements for the control of RF
disturbances from equipment intended for use in industrial, scientific, and medical electrical
applications, specific requirements for the control of RF disturbances caused by ISM RF
applications in the meaning of the definition of the International Telecommunication Union (ITU),
see also Definition 3.1.18 in this document. CISPR and ITU share their responsibilities for the
protection of radio services in respect of the use of ISM RF applications.
The CISPR is concerned with the control of RF disturbances from ISM RF applications by means
of an assessment of these disturbances either at a standardised test site or, for an individual
ISM RF application which cannot be tested at such a site, at its place of operation. Consequently,
this CISPR Publication covers requirements for conformity assessment of both, equipment
assessed by means of type tests at standardised test sites or of individual equipment under in
situ conditions.
The ITU is concerned with the control of RF disturbances from ISM RF applications during
normal operation and use of the respective equipment at its place of operation (see
Definition 1.15 in the ITU Radio Regulations (2020)). There, use of radio-frequency energy
decoupled from the ISM RF application by radiation, induction or capacitive coupling is
restricted to the location of that individual application.
This CISPR publication contains, in 6.3, the essential emission requirements for an assessment
of RF disturbances from ISM RF applications at standardised test sites. These requirements
allow for type testing of ISM RF applications operated at frequencies up to 18 GHz. It further
contains, in 6.4, the essential emission requirements for an in situ assessment of RF
disturbances from individual ISM RF applications in the frequency range up to 1 GHz. All
requirements were established in close collaboration with the ITU and enjoy approval of the
ITU.
However, for operation and use of several types of ISM RF applications the manufacturer,
installer and/or customer should be aware of additional national provisions regarding possible
licensing and particular protection needs of local radio services and applications. Depending
on the country concerned, such additional provisions may can apply to individual ISM RF
applications operated at frequencies outside designated ISM bands (see Table 1). They also
may can apply to ISM RF applications operated at frequencies above 18 GHz. For the latter
type of applications, local protection of radio services and appliances requires an
accomplishment of the conformity assessment by application of the relevant national provisions
in the frequency range above 18 GHz in accordance with vested interests of the ITU and
national administrations. These additional national provisions may apply to spurious emissions,
emissions appearing at harmonics of the operation frequency, and to wanted emissions at the
operation frequency allocated outside a designated ISM band in the frequency range above
18 GHz.
Recommendations of CISPR for the protection of radio services in particular areas are found in
Annex C of this document.
Definition 1.15 of the ITU Radio Regulations reads as follows:
1.15 industrial, scientific and medical (ISM) applications (of radio frequency energy):
Operation of equipment or appliances designed to generate and use locally radio frequency
energy for industrial, scientific, medical, domestic or similar purposes, excluding applications
in the field of telecommunications.
[ITU Radio Regulations Volume 1: 2012 – Chapter I, Definition 1.15]
– 12 – CISPR 11:2024 CMV © IEC 2024
Introduction to Amendment 1
This Amendment introduces the fully-anechoic room (FAR) for measurements of the disturbance
field strength in the range 30 MHz to 1 GHz on equipment in the scope of CISPR 11.
It contains the complete set of requirements for measurement of radiated disturbances from
equipment fitting into the validated test volume of a given FAR. It specifies a separation distance
of 3 m and restricts use of the FAR to measurements on table-top equipment.
At the moment the FAR can be used:
• for measurements on table-top equipment fitting into the validated test volume of the given
FAR,
• for a separation distance of 3 m only, and
• if the FAR was validated according to CISPR 16-1-4.
The limits for class A and class B group 1 equipment in this CDV base on the limits in the
generic emission standards IEC 61000-6-3:2006/AMD 1 (2010) and
IEC 61000-6-4:2006/AMD 1 (2010). The limits for class A and class B group 2 equipment were
derived using the same approximation formula as used when deriving the limits for the generic
emission standards in mid of the years 2000 to 2010. CISPR/H/104/INF, published in 2005,
gives detailed explanations how these limits for the FAR were derived.
More detailed background information is still found in CISPR/B/627/CDV.
CISPR/B WG1 in October 2015
Introduction to the Amendment 2
This AMD 2 combines the contents of two fragments which have been circulated as
CIS/B/688/CDV (f2) and CIS/B/697/CDV (f3).
Fragment 2: Requirements for semiconductor power converters (SPC)
CISPR 11 Ed. 6.1 needs to be supplemented with further information for full inclusion of type
test requirements for SPCs specified hereafter. These requirements apply only to the following
types of equipment:
a) power conversion equipment intended for assembly into photovoltaic power generating
systems, such as grid connected power converters (GCPCs) and d.c. to d.c. converters,
b) GCPCs intended for assembly into energy storage systems.
Fragment 3: Improvement of repeatability for measurements in the frequency range 1-18 GHz
Based on the comments from the National Committees on CIS/B/662/DC, CIS/B/WG1 decided
on its meeting in Hangzhou 2016 to amend the test procedure for group 2 equipment in the
frequency range 1 to 18 GHz for the following reasons:
a) CISPR 11 allows final measurements on group 2 equipment operating at frequencies above
400 MHz with two different weighting functions, the traditional “LogAV detector” with a video
bandwidth of 10 Hz and the new APD method, where the Amplitude Probability Distribution
is evaluated.
With the alignment of emission requirements for sources of fluctuating emissions with those
generating CW-type emissions (Fraction 4 of the last general maintenance of CISPR 11) for
most of the frequency range 1 to 18 GHz the peak detector is used mostly for preliminary
measurements, while the number of final measurements with the LogAV detector has been
increased from 2 frequencies to max. 7 frequencies.
In parallel, with fraction 3, the APD detector has been introduced,
...
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
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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
9.4 Measuring procedure . 66
9.4.1 General . 66
9.4.2 Operating conditions of the EUT (group 2 equipment only) . 67
9.4.3 Peak measurements (group 2 equipment only) . 67
9.4.4 Weighted measurements (group 2 equipment only) . 68
10 Measurement in situ . 69
11 Safety precautions for emission measurements on ISM RF equipment . 70
12 Measurement uncertainty . 70
Annex A (informative) Examples of equipment classification . 71
A.1 General . 71
A.2 Group 1 equipment . 71
A.2.1 General Group 1 equipment . 71
A.2.2 Detailed Group 1 equipment . 71
A.3 Group 2 equipment . 72
A.3.1 General Group 2 equipment . 72
A.3.2 Detailed Group 2 equipment . 72
Annex B (normative) Measurement of electromagnetic radiation disturbance in the
presence of signals from radio transmitters . 73
Annex C (informative) Recommendations of CISPR for protection of certain radio
services in particular areas . 74
C.1 General . 74
C.2 Recommendations for protection of safety-related radio services . 74
– 4 – CISPR 11:2024 © IEC 2024
C.3 Recommendations for protection of specific sensitive radio services . 76
Annex D (informative) Measurements on Grid Connected Power Converters (GCPC) –
Setups for an effective test site configuration . 79
D.1 General information and purpose . 79
D.2 Setup of the test site . 79
D.2.1 Block diagram of test site . 79
D.2.2 DC power supply . 80
D.2.3 AC power source . 80
D.2.4 Other components . 81
D.3 Other test setups . 81
D.3.1 Configuration comprising laboratory AC power source and resistive load . 81
D.3.2 Configuration with reverse power flow into the AC mains . 82
Annex E (informative) Guidance on prevention of saturation effects in mitigation filters
of transformer-less power converters during tests . 84
E.1 General information and purpose . 84
E.2 Recommendations for avoidance of saturation effects in the range 9 kHz to
150 kHz . 85
E.3 Detailed advice . 85
E.3.1 General . 85
E.3.2 Insert of series inductors (or common mode chokes) in the laboratory's
DC power supply chain . 86
E.3.3 Employment of additional common mode decoupling capacitors at the
interface between the AE port of the DC-AN and the laboratory DC
power supply port allocated in the test environment . 87
E.4 Background information . 87
Annex F (normative) Additional requirements for equipment with radio functionality . 90
F.1 Configuration of the EUT during emission tests . 90
F.2 Radiated emissions . 90
F.3 Conducted emissions . 90
Bibliography . 92
Figure 1 – Circuit for disturbance voltage measurements on mains supply . 41
Figure 2 – Artificial hand, RC element . 42
Figure 3 – Example for a typical cable arrangement for measurements of radiated
disturbances in 3 m separation distance, Table-top EUT . 44
Figure 4 – Example for a typical test set up for measurement of conducted and/or
radiated disturbances from a floor standing EUT, 3D view . 45
Figure 5 – EUT boundary determination for radiated disturbance measurements of
robots with extendable/moving arm . 49
Figure 6 – Example of a typical test setup for conducted disturbance measurement on
a floor-standing robot system . 50
Figure 7 – Example of a typical test setup for radiated disturbance measurement on a
floor-standing robot system . 51
Figure 8 – Example of a typical test setup for conducted disturbance measurement on
a combination robot system . 52
Figure 9 – Example of a typical test setup for radiated disturbance measurement on a
combination robot system . 53
Figure 10 – Disposition of medical equipment (capacitive type) and dummy load . 54
Figure 11 – Typical arrangement for measurement of conducted disturbances at LV DC
power ports with the DC-AN used as termination and decoupling unit to the laboratory
DC power source . 60
Figure 12 – Typical arrangement for measurement of conducted disturbances at LV DC
power ports with the DC-AN used as termination and voltage probe . 61
Figure 13 – Typical arrangement for measurement of conducted disturbances at LV DC
power ports with the DC-AN used as voltage probe and with a current probe – 2D
diagram . 62
Figure 14 – Typical arrangement for measurement of conducted disturbances at LV DC
power ports with a DC-AN used as voltage probe and with a current probe – 3D
diagram . 62
Figure 15 – Radiation test site . 64
Figure 16 – Minimum size of metal ground plane . 64
Figure 17 – Decision tree for the measurement of emissions from 1 GHz to 18 GHz of
group 2 equipment operating at frequencies above 400 MHz . 67
Figure D.1 – Test setup for Case 1 (schematic) . 79
Figure D.2 – Test setup for Case 1 (3D view) . 80
Figure D.3 – Test setup for Case 2 (schematic) . 81
Figure D.4 – Test setup for Case 2 (3D view) . 82
Figure D.5 – Test setup for Case 3 (schematic) . 83
Figure D.6 – Test setup for Case 3 (3D view) . 83
Figure E.1 – Flow of the common mode RF current at test site configuration level . 86
Figure E.2 – Blocking of flow of common mode RF current by insert of series inductors . 86
Figure E.3 – Blocking of flow of common mode RF current by employment of additional
CM decoupling capacitors . 87
Figure E.4 – CM termination impedance at the EUT port of a DC-AN – Magnitude-
versus-frequency characteristic in the range 3 kHz to 30 MHz, Example . 88
Figure E.5 – Prevention of saturation of mitigation filters by use of additional
decoupling capacitors . 88
Figure E.6 – Change in the resonant frequency caused by the increase and decrease
in the decoupling capacitor's capacitance . 89
Figure E.7 – DC-AN circuit example where capacitance of blocking capacitors of the
LC decoupling circuit can be increased or decreased . 89
Table 1 – Frequencies in the radio-frequency (RF) range designated by ITU for use as
fundamental ISM frequencies . 19
Table 2 – Disturbance voltage limits for class A group 1 equipment measured on a test
site (AC mains power port). 23
Table 3 – Limits for conducted disturbances of class A group 1 equipment measured
on a test site (DC power port) . 24
Table 4 – Disturbance voltage limits for class B group 1 equipment measured on a test
site (AC mains power port). 24
Table 5 – Disturbance voltage limits for class B group 1 equipment measured on a test
site (DC power port) . 25
Table 6 – Applicability of measurements at DC power ports . 25
Table 7 – Limits for conducted disturbances measured on a test site (wired network
port) . 26
Table 8 – Electromagnetic radiation disturbance limits for class A group 1 equipment
measured on a test site . 27
– 6 – CISPR 11:2024 © IEC 2024
Table 9 – Electromagnetic radiation disturbance limits for class B group 1 equipment
measured on a test site . 27
Table 10 – Required highest frequency for radiated measurements . 28
Table 11 – Electromagnetic radiation disturbance limits for group 1 equipment
measured on a test site . 28
Table 12 – Disturbance voltage limits for class A group 2 equipment measured on a
test site (AC mains power port) . 30
Table 13 – Disturbance voltage limits for class B group 2 equipment measured on a
test site (AC mains power port) . 30
Table 14 – Electromagnetic radiation disturbance limits for class A group 2 equipment
measured on a test site . 32
Table 15 – Electromagnetic radiation disturbance limits for class A EDM and arc
welding equipment measured on a test site . 33
Table 16 – Electromagnetic radiation disturbance limits for class B group 2 equipment
measured on a test site . 33
Table 17 – Electromagnetic radiation disturbance peak limits for group 2 equipment
operating at frequencies above 400 MHz . 34
Table 18 – Electromagnetic radiation disturbance weighted limits for group 2
equipment operating at frequencies above 400 MHz . 35
–1
Table 19 – Electromagnetic radiation disturbance APD level corresponding to 10
limits for class B group 2 equipment operating at frequencies above 400 MHz . 36
Table 20 – Electromagnetic radiation disturbance limits for class A group 1 equipment
measured in situ . 37
Table 21 – Electromagnetic radiation disturbance limits for class A group 2 equipment
measured in situ . 38
Table 22 – Operation modes for fixed robots . 57
Table 23 – Operation modes for mobile robots . 57
Table 24 – Frequency subranges to be used for weighted measurements . 68
Table C.1 – Limits for electromagnetic radiation disturbances for in situ measurements
to protect specific safety-related radio services in particular areas . 74
Table C.2 – Frequency bands allocated for safety-related radio services . 75
Table C.3 – Frequency bands allocated for sensitive radio services . 77
Table F.1 – Disturbance voltage and current limits for group 1 and group 2 equipment
measured on a test site (antenna port) . 91
INTERNATIONAL ELECTROTECHNICAL COMMISSION
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
_____________
INDUSTRIAL, SCIENTIFIC AND MEDICAL EQUIPMENT –
RADIO-FREQUENCY DISTURBANCE CHARACTERISTICS –
LIMITS AND METHODS OF MEASUREMENT
FOREWORD
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9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
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International Standard CISPR 11 has been prepared by CISPR Subcommittee B: Interference
relating to industrial, scientific and medical radio-frequency apparatus, to other (heavy)
industrial equipment, to overhead power lines, to high voltage equipment and to electric traction.
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;
– 8 – CISPR 11:2024 © IEC 2024
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.
The text of this document is based on the following documents:
Draft Report on voting
CIS/B/831/FDIS CIS/B/837/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
This document has the status of a Product Family EMC standard in accordance with IEC
Guide 107, Electromagnetic compatibility – Guide to the drafting of electromagnetic
compatibility publications (2014).
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
The main content of this document is based on CISPR Recommendation No. 39/2 given below:
RECOMMENDATION No. 39/2
Limits and methods of measurement of electromagnetic disturbance characteristics
of industrial, scientific and medical (ISM) radio-frequency equipment
The CISPR
CONSIDERING
a) that ISM RF equipment is an important source of disturbance;
b) that methods of measuring such disturbances have been prescribed by the CISPR;
c) that certain frequencies are designated by the International Telecommunication Union
(ITU) for unrestricted radiation from ISM equipment,
RECOMMENDS
that the latest edition of CISPR 11 be used for the application of limits and methods of
measurement of ISM equipment.
– 10 – CISPR 11:2024 © IEC 2024
INTRODUCTION
This CISPR publication contains, amongst common requirements for the control of RF
disturbances from equipment intended for use in industrial, scientific, and medical electrical
applications, specific requirements for the control of RF disturbances caused by ISM RF
applications in the meaning of the definition of the International Telecommunication Union (ITU),
see also Definition 3.1.18 in this document. CISPR and ITU share their responsibilities for the
protection of radio services in respect of the use of ISM RF applications.
The CISPR is concerned with the control of RF disturbances from ISM RF applications by means
of an assessment of these disturbances either at a standardised test site or, for an individual
ISM RF application which cannot be tested at such a site, at its place of operation. Consequently,
this CISPR Publication covers requirements for both, equipment assessed by means of tests at
standardised test sites or of individual equipment under in situ conditions.
The ITU is concerned with the control of RF disturbances from ISM RF applications during
normal operation and use of the respective equipment at its place of operation (see
Definition 1.15 in the ITU Radio Regulations(2020)). There, use of radio-frequency energy
decoupled from the ISM RF application by radiation, induction or capacitive coupling is
restricted to the location of that individual application.
This CISPR publication contains, in 6.3, the essential emission requirements for an assessment
of RF disturbances from ISM RF applications at standardised test sites. These requirements
allow for testing of ISM RF applications operated at frequencies up to 18 GHz. It further contains,
in 6.4, the essential emission requirements for an in situ assessment of RF disturbances from
individual ISM RF applications in the frequency range up to 1 GHz. All requirements were
established in close collaboration with the ITU and enjoy approval of the ITU.
However, for operation and use of several types of ISM RF applications the manufacturer,
installer and/or customer should be aware of additional national provisions regarding possible
licensing and particular protection needs of local radio services and applications. Depending
on the country concerned, such additional provisions can apply to individual ISM RF
applications operated at frequencies outside designated ISM bands (see Table 1). They also
can apply to ISM RF applications operated at frequencies above 18 GHz.
Recommendations of CISPR for the protection of radio services in particular areas are found in
Annex C of this document.
INDUSTRIAL, SCIENTIFIC AND MEDICAL EQUIPMENT –
RADIO-FREQUENCY DISTURBANCE CHARACTERISTICS –
LIMITS AND METHODS OF MEASUREMENT
1 Scope
This document 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 [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.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
CISPR 16-1-1:2019, Specification for radio disturbance and immunity measuring apparatus and
methods – Part 1-1: Radio disturbance and immunity measuring apparatus – Measuring
apparatus
___________
1 Figures in square brackets refer to the Bibliography.
– 12 – CISPR 11:2024 © IEC 2024
CISPR 16-1-2:2014, Specification for radio disturbance and immunity measuring apparatus and
methods – Part 1-2: Radio disturbance and immunity
...
Frequently Asked Questions
CISPR 11:2024 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Industrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement". This standard covers: 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.
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.
CISPR 11:2024 is classified under the following ICS (International Classification for Standards) categories: 33.100.10 - Emission. The ICS classification helps identify the subject area and facilitates finding related standards.
CISPR 11:2024 has the following relationships with other standards: It is inter standard links to CISPR PAS 38:2025, CISPR 11:2015/AMD2:2019, CISPR 11:2015, CISPR 11:2015/AMD1:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase CISPR 11:2024 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of IEC standards.
The CISPR 11:2024 standard, titled "Industrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement," provides a comprehensive framework for assessing the emission characteristics of various industrial, scientific, and medical (ISM) equipment operating within the frequency range of 0 Hz to 400 GHz. This standard specifically delineates the emission requirements pertinent to radio-frequency (RF) disturbances, which are pivotal in maintaining compliance and ensuring the electromagnetic compatibility of ISM devices. A significant strength of CISPR 11:2024 is its extensive scope, which not only covers traditional ISM equipment but also encompasses domestic appliances designed to generate or utilize locally produced radio-frequency energy. The inclusion of emission requirements for frequencies ranging from 9 kHz to 400 GHz is particularly relevant in today's technologically advanced landscape, where RF disturbances can interfere with the operation of sensitive electronic devices across various industries. Moreover, this document adds clarity by addressing emerging technologies, such as robots used in industrial, scientific, and medical applications. It provides definitions and specifications that enhance understanding and compliance for entities involved in the development and testing of robotics within these sectors. The clear categorization of equipment, including welding robots, spraying robots, and others, aligns with current trends and user expectations. The seventh edition of this standard reflects a vital technical revision, incorporating significant updates from previous editions. The introduction of limits for radiated disturbances above 1 GHz aligns with advancements in generic emission standards, which greatly enhances relevance for contemporary applications. Additionally, the new requirements for equipment capable of transmitting and receiving radio signals ensure that the standard remains comprehensive and forward-thinking. Furthermore, the inclusion of conducted disturbance limits on wired network ports provides additional layers of protection and compliance, crucial for systems reliant on wired connectivity. These enhancements underscore the standard’s commitment to addressing evolving technological scenarios. Lastly, the standard smartly differentiates between intentional transmissions and emissions from ISM equipment’s non-radio components, providing essential clarity in compliance guidelines. This distinction is critical for manufacturers and testing laboratories navigating the complexities of electromagnetic emissions. Overall, CISPR 11:2024 stands out as a robust and relevant standard, crucial for ensuring the safe and compliant operation of industrial, scientific, and medical equipment in an increasingly digital and connected world. Its comprehensive approach to RF disturbance characteristics not only supports compliance but also fosters innovation by accommodating emerging technologies and applications.
Die Norm CISPR 11:2024 befasst sich mit den elektromagnetischen Störeinflüssen von industriellem, wissenschaftlichem und medizinischem elektrischen Equipment, das im Frequenzbereich von 0 Hz bis 400 GHz arbeitet. Ihr Anwendungsbereich erstreckt sich zudem auf Haushaltsgeräte und ähnliche Applikationen, die dazu konzipiert sind, lokal Radiowellenenergie zu erzeugen oder zu nutzen. Dies macht die Norm besonders relevant in aktuellen technische Anwendungen, in denen RF-Störungen ein wesentliches Thema darstellen. Ein herausragendes Merkmal der CISPR 11:2024 ist die umfassende Abdeckung der Emissionsanforderungen für Hochfrequenzstörungen im Frequenzbereich von 9 kHz bis 400 GHz. Insbesondere werden auch spezifische Emissionsanforderungen für ISM-RF-Anwendungen in der Frequenzspanne von 9 kHz bis 18 GHz thematisiert. Dies ist besonders wichtig für Geräte, die über integrierte Funkübertragungs- und -empfangsfunktionen verfügen, da diese in den Anwendungsbereich dieser Norm fallen. Die neue Auflage hat wesentliche technische Änderungen vorgenommen, die die Anforderungen an die abgestrahlten Störungen über 1 GHz für Geräte der Gruppe 1 vereinheitlichen. Die Einführung spezifischer Grenzwerte für leitungsgebundene Störungen an Netzwerkports sorgt ebenfalls für eine zeitgemäße Anpassung an die aktuellen Standards der allgemeinen Emissionsnormen und erhöht die Relevanz der Norm für moderne industrielle Anwendungen. Des Weiteren werden auch Roboter, die in verschiedenen industriellen, wissenschaftlichen und medizinischen Anwendungen eingesetzt werden, klar definiert. Die Norm berücksichtigt verschiedene Robotertypen wie Schweißroboter, Handhabungsroboter und medizinische Roboter, was ihre Anwendbarkeit und Relevanz in zahlreichen Sektoren unterstreicht. Durch diese umfassenden Änderungen und die klare Definition des Anwendungsbereichs trägt die CISPR 11:2024 bedeutend zur Harmonisierung der Emissionsstandards in der Industrie bei und erfüllt die Bedürfnisse einer sich schnell entwickelnden technologischen Landschaft. Diese Norm stellt sicher, dass die Standards für elektromagnetische Störungen im Einklang mit den neuesten Entwicklungen und Anwendungen in der Elektrotechnik stehen.
CISPR 11:2024 문서는 산업, 과학 및 의료 장비의 전자기 방해 특성을 다루며, 주파수 범위 0 Hz에서 400 GHz까지 작동하는 전기 장비에 적용됩니다. 이 표준은 9 kHz에서 400 GHz 사이의 주파수 범위에 대한 방출 요구 사항을 다루며, ITU 라디오 규정에서 정의된 ISM RF 애플리케이션에 대한 방출 요구 사항도 포함하고 있습니다. 이 문서는 라디오 송수신 기능을 포함하는 ISM 장비를 포함하므로, 관련 기술에 대한 포괄적인 이해를 제공합니다. CISPR 11:2024의 강점은 다양한 산업용 로봇을 아우르는 범위에 있습니다. 용접 로봇, 분사 로봇, 처리 로봇 및 의료 로봇 등 다양한 응용 분야에서 사용되는 로봇에 대한 요구 사항이 구체화되어 있습니다. 이 표준은 고주파 방해의 방출 한계를 명확히 하고, 측정 및 평가 방법도 제시하고 있어 실질적인 활용도를 높입니다. 또한, 이전 버전에서 변경된 주요 기술적 수정 사항은 방출 한계를 사양함으로써 글로벌 표준을 따르는 데 주요한 역할을 합니다. 1GHz 이상의 주파수에서 발생하는 방사 방해에 대한 한계와 유선 네트워크 포트에서의 전도 방해에 대한 요구 사항은 현대 산업기기의 필요성을 잘 반영하고 있습니다. 결론적으로 CISPR 11:2024 표준은 전자기적 방출 제어의 중요성을 강조하며, 다양한 전기 및 과학 장비의 안전성과 규정을 준수하는 데 필수적인 문서로 자리잡고 있습니다.
La norme CISPR 11:2024, intitulée "Caractéristiques de perturbation radiofréquence des équipements industriels, scientifiques et médicaux - Limites et méthodes de mesure", joue un rôle crucial dans la sécurité et la conformité des équipements électriques dans le domaine des radiofréquences. Son champ d'application est étendu, couvrant une gamme de fréquences allant de 0 Hz à 400 GHz, ce qui inclut tant les équipements industriels que ceux scientifiques et médicaux. De plus, elle s'applique également aux appareils domestiques conçus pour générer et/ou utiliser de l'énergie radiofréquence localement. Les forces de cette norme résident dans son approche exhaustive des exigences d'émission relatives aux perturbations radiofréquences. En se concentrant sur les fréquences particulières de 9 kHz à 400 GHz, et plus spécifiquement de 9 kHz à 18 GHz pour les applications ISM, cette norme répond aux besoins variés des industries en garantissant que les équipements n'émettent pas de perturbations nuisibles. La clarification des équipements ISM incluant des fonctions de transmission/réception radio renforce la pertinence de cette norme pour les technologies modernes, comme les robots utilisés dans divers contextes industriels, médicaux et scientifiques. La mise à jour de cette septième édition apporte des changements techniques significatifs, introduisant des limites pour les perturbations rayonnées dans la plage de fréquence au-dessus de 1 GHz, et des limites pour les perturbations conduites sur les ports de réseau câblés. Ces évolutions sont en ligne avec les exigences des normes d'émission génériques, ce qui témoigne d'un effort constant pour maintenir la norme alignée avec les développements technologiques actuels. De plus, les définitions révisées concernant les types de robots et les considérations spécifiques lors de la mesure de ces robots font de cette norme un document vivant qui s'adapte aux nouvelles réalités du marché. La pertinence de la norme CISPR 11:2024 est accentuée par son exclusion des émissions intentionnelles des émetteurs radio, tout en adaptant les exigences pour les équipements qui présentent des émissions combinées. Cela renforce la sécurité des équipements, en garantissant qu'ils répondent à des standards élevés de conformité sans compromettre leurs fonctions essentielles. En somme, cette norme constitue un outil indispensable pour les fabricants et les utilisateurs d'équipements ISM, en leur fournissant des directives claires et rigoureuses pour minimiser l'impact des émissions radiofréquences.
CISPR 11:2024は、産業、科学、医療用の電気機器における無線周波数干渉特性に関する国際標準であり、その適用範囲は非常に広範です。この文書は、0 Hzから400 GHzの周波数範囲で動作する機器と、局所的な無線周波数エネルギーを生成または利用するために設計された家庭用及び類似機器に関連する放射要件をカバーしています。特に、9 kHzから400 GHzの範囲内における無線周波数干渉に関する排出要件が定義されている点が強みです。また、ITU無線規則におけるISM RFアプリケーションに関する放射要件も含まれているため、業界全体にとって非常に重要な標準となっています。 CISPR 11:2024の改訂により、前版（2015年版）と比較して幾つかの重要な技術変更が行われています。例えば、1 GHz以上の周波数範囲での放射干渉限界の導入や、有線ネットワークポートにおける伝導干渉の限界の設定などが行われており、これにより、より高い安全性と信頼性が求められる現代の技術環境に適応しています。さらに、無線送信/受信機能を持つ機器に対する要求の導入も大きな進展です。このように、この標準は柔軟性と適用性が高く、特にロボット技術の進展に対応するための新しい定義が含まれています。 ロボット技術に関しては、産業、科学、医療用アプリケーションにおけるロボットも本標準の適用範囲に含まれており、溶接ロボット、スプレーロボット、ハンドリングロボットなどの具体例が挙げられています。このため、CISPR 11:2024は、様々な産業分野において実用性と安全性を両立させるための非常に重要な文書であると言えます。 総じて、CISPR 11:2024は無線周波数干渉に関する厳格な要件を提供し、国際的な取引や標準化を支える基盤を構築しています。これにより、工業界や医療分野における技術の発展と安全な運用を支援することに対するその関連性は高まる一方です。以上の点からも、この標準は今後の技術発展において欠かせない要素となるでしょう。
CISPR 11:2024は、工業、科学、医療において使用される電気機器に関連する標準であり、周波数範囲0 Hzから400 GHzで動作する機器及び地元の無線周波数エネルギーを生成または使用することを目的とした家庭用および類似の器具に適用されます。本標準は、9 kHzから400 GHzの周波数範囲における無線周波数(RF)干渉に関する放出要件をカバーします。特に、ITU無線規則(2020)で定義されたISM RF用途に関連する放出要件が9 kHzから18 GHzの範囲で適用される点が強調されています。 CISPR 11:2024の強みは、非常に広範な機器の種類が対象に含まれ、産業用ロボットや医療機器を含むさまざまな用途に応じた詳細な技術的要件が規定されていることです。特に、ロボットの範囲についての説明があり、ウェルディングロボット、スプレーロボット、医療ロボットなど多岐にわたる例が挙げられています。この詳細な指定は、ユーザーや製造者が遵守すべき基準を明確にするために重要です。 さらに、2024年版では、前版に対して重要な技術的変更が含まれており、特に1 GHz以上の周波数範囲における放射干渉の限度が導入されている点が新しい視点を提供します。また、有線ネットワークポートにおける伝導干渉の限度や、無線送受信機能を備えた機器に対する要件の導入も評価されます。 この標準は、無線機能を持つ産業機器や医療機器が増加する中で、その妥当性を持ち続けるものであり、国際的なコンプライアンスを確保するための基盤を提供しています。CISPR 11:2024は、無線周波数干渉における評価と管理を行うための信頼性の高いガイドラインとして、製造業者や技術者にとって非常に重要で関連性の高い文書となっています。
CISPR 11:2024 표준 문서는 산업, 과학 및 의료 전기 장비의 라디오 주파수 방해 특성에 관한 종합적인 규정을 제공하며, 주파수 범위 0Hz에서 400GHz까지 작동하는 다양한 장비에 적용됩니다. 이 문서는 9kHz에서 400GHz 사이의 무선 주파수(RF) 방해와 관련된 배출 요건을 상세히 다룹니다. 특히, ITU 라디오 규정에서 정의하는 ISM RF 응용 분야에 대한 배출 요건도 포함되어 있습니다. 이 표준의 강점으로는 다음과 같은 세 가지 주요 요소가 있습니다. 첫째, RF 장비의 방출 요구 사항에 대한 명확한 가이드라인을 제공함으로써, 제조업체들이 제품이 세부 요구 사항을 충족하도록 지원하는 데 중점을 둡니다. 둘째, 로봇 장비와 관련하여 다양한 유형의 로봇에 대한 정의와 측정을 고려하고 있어, 실제 운영 환경에서의 적용 가능성을 높이고 있습니다. 셋째, 1GHz 이상의 주파수 범위에 대한 방사 방해 한계를 추가하여, 현대 기술 진보에 맞춘 실질적인 요구 사항을 제정했습니다. 또한, CISPR 11:2024는 산업, 과학 및 의료 분야에서 사용되는 다양한 장비 뿐만 아니라, 도시 및 가정용 기기에서도 사용될 수 있는 해당 전자 기구들에 대한 표준을 포괄합니다. 이는 가전 기기가 무선 주파수를 발생하거나 사용하는 방식에 대한 안전성을 담보하는 데 기여합니다. 특히, 로봇 기술의 발전에 발맞춰, 이 표준은 다양한 작업용 로봇, 의료 로봇 및 실험용 로봇을 포함하여 이들 각각에 대한 방출 요건을 정의함으로써, 산업계에서의 실질적인 필요에 부응합니다. 최신판인 이번 제7판은 предыдущий 슬제6판을 대체하며, 기술적 수정 사항이 포함되어 있어 신뢰성과 정확성을 갖춘 문서로 자리 잡고 있습니다. 이렇게 볼 때, CISPR 11:2024 표준은 관련 산업 규제 준수뿐만 아니라, 기술 혁신에 대한 실제적인 대응력을 갖춘 필수적인 문서임을 알 수 있습니다.
Le document de normalisation CISPR 11:2024, portant sur les caractéristiques de perturbation radio-fréquence des équipements industriels, scientifiques et médicaux, ainsi que sur les limites et méthodes de mesure, constitue une avancée significative dans le domaine de la conformité des équipements électromagnétiques. Son champ d'application est bien défini, englobant les équipements opérant dans une large gamme de fréquences, de 0 Hz à 400 GHz, ainsi que les appareils ménagers conçus pour générer ou utiliser localement de l'énergie radio-fréquence. Cette portée étendue assure que tous les équipements ISM (Industriel, Scientifique et Médical) sont couverts, garantissant ainsi des exigences d'émission précises pour les perturbations radio-fréquence dans la bande de fréquence critique de 9 kHz à 400 GHz. Parmi les points forts de cette norme, on note l'introduction de nouvelles limites pour les perturbations rayonnées dans la plage de fréquence au-dessus de 1 GHz pour les équipements de groupe 1, ce qui répond aux exigences des normes d'émission génériques. De plus, la prise en compte des perturbations conduites sur le port réseau câblé renforce la pertinence de cette norme dans le contexte actuel où la connectivité est primordiale. La norme CISPR 11:2024 se distingue également par sa révision technique complète, incluant des exigences spécifiques pour les équipements incorporant des fonctions d'émission/réception radio, ainsi que des définitions précises pour divers types de robots utilisés dans des applications industrielles, scientifiques et médicales. Cela démontre une attention croissante portée à l'évolution rapide de la technologie, s'assurant que même les nouveaux dispositifs, comme les robots de soudage, de pulvérisation et d'assemblage, sont conformes aux meilleures pratiques en matière d'émission. Le document exclut clairement les émissions intentionnelles des émetteurs radio, ce qui démontre une compréhension des différents types d'appareils et de leurs fonctionnalités. Cette clarification est essentielle pour éviter toute confusion entre les appareils régis par la présente norme et ceux régis par d'autres normes CISPR. Enfin, la mise à jour de la norme, qui annule et remplace les éditions précédentes, témoigne de l'engagement à maintenir les exigences à jour face aux innovations technologiques en matière d'équipement ISM. En intégrant les meilleures pratiques et les leçons tirées des versions antérieures, le CISPR 11:2024 s'impose comme une référence incontournable pour les fabricants et les utilisateurs d'équipements industriels, scientifiques et médicaux, garantissant ainsi leur conformité et leur fiabilité dans un environnement en constante évolution.
Die Norm CISPR 11:2024 bezieht sich auf industrielle, wissenschaftliche und medizinische elektrische Geräte, die im Frequenzbereich von 0 Hz bis 400 GHz betrieben werden, sowie auf Haushaltsgeräte und ähnliche Anwendungen, die lokal radiofrequente Energie erzeugen und/oder nutzen. Diese umfassende Norm behandelt die Emissionsanforderungen, die mit radiofrequenten Störungen im Frequenzbereich von 9 kHz bis 400 GHz verbunden sind. Besonders hervorzuheben ist, dass sie die spezifischen Anforderungen für ISM-RF-Anwendungen berücksichtigt, die in der ITU-Rundfunkverordnung definiert sind. Ein wesentlicher Stärke der Norm CISPR 11:2024 liegt in der präzisen Definition von Emissionsgrenzen für verschiedene Gerätetypen, einschließlich solcher, die Funkübertragungs- und Empfangsfunktionen integrieren. Dies schließt ein breites Spektrum an Geräten ein, von Schweißrobotern bis hin zu medizinischen Robotern, was die Relevanz der Norm in modernen industriellen Anwendungen unterstreicht. Der umfassende Anwendungsbereich dieser Norm ermöglicht eine umfangreiche Abdeckung entscheidender Technologien, die in verschiedenen Sektoren eingesetzt werden, und gewährleistet, dass die Emissionen innerhalb sicherer Grenzen gehalten werden, um Störungen zwischen Geräten zu minimieren. Die technischen Änderungen in dieser siebten Ausgabe, die die vorherige Auflage von 2015 ersetzt, sind signifikant. Die Einführung von Grenzwerten für abgestrahlte Störungen über 1 GHz und für leitungsgebundene Störungen am Netzwerkport entspricht den Anforderungen der allgemeinen Emissionsstandards. Dieser Schritt ist entscheidend, um sowohl der Weiterentwicklung der Technologien als auch den steigenden Anforderungen an die elektromagnetische Verträglichkeit gerecht zu werden. Darüber hinaus werden in dieser Norm spezielle Bedingungen beim Messen von Robotern berücksichtigt, wie z.B. Messanordnungen und Betriebsmodi, was entscheidend für die genaue Bewertung der Emissionen in der Praxis ist. Die Definitionen verschiedener Robotertypen innerhalb der Norm tragen zur Klarheit und Verständlichkeit der Emissionsanforderungen bei und ermöglichen es Herstellern, ihre Produkte effektiv zu normen. Zusammenfassend lässt sich sagen, dass die CISPR 11:2024 eine wichtige Ressource für alle Hersteller und Anwender von industriellen, wissenschaftlichen und medizinischen Geräten darstellt. Ihre umfassenden Anforderungen und die Berücksichtigung neuer Technologien gewährleisten, dass sie auch in Zukunft relevant bleibt.
CISPR 11:2024 is a comprehensive standard that establishes limits and methods of measurement for radio-frequency disturbance characteristics pertinent to industrial, scientific, and medical (ISM) equipment. Its scope encompasses a broad frequency range from 0 Hz to 400 GHz, specifically targeting both the emission requirements for radio-frequency disturbances and the necessary measurement methodologies. One of the significant strengths of CISPR 11:2024 lies in its detailed coverage of RF disturbances, particularly in the frequency range of 9 kHz to 400 GHz. This is crucial for ensuring that all industrial, scientific, and medical electrical equipment, alongside domestic appliances that generate or utilize locally radio-frequency energy, adhere to safe and effective operating standards. The document’s inclusion of emission requirements for robotic systems further enhances its relevance as these robots play a vital role in modern ISM applications, including welding, processing, and medical fields. The technical revisions introduced in this seventh edition mark a notable improvement over earlier versions. Notably, it includes newly established limits for radiated disturbances above 1 GHz, aligning these requirements with generic emission standards, which strengthens compliance across the board. Additionally, the introduction of limits for conducted disturbances on wired network ports is a significant advancement, as it addresses the interference potential of connected devices more comprehensively. Expansion of the definition of robots highlights the evolving landscape of ISM applications, providing clarity on the scope of equipment covered under this standard. The standard acknowledges the necessity of specifying measurements based on varying operational contexts, thus ensuring more accurate assessments of robotic performance and compliance. Furthermore, CISPR 11:2024 excludes emissions from intentional radio transmitters, ensuring that the focus remains on unintentional RF disturbances. This distinction is crucial for manufacturers looking to navigate the complexities of both regulatory compliance and technological incorporation. Overall, CISPR 11:2024 serves as an essential document for organizations involved in the design and manufacture of ISM equipment. Its relevance is underscored by its adaptability to include new technologies and methodologies, ensuring safety and compliance in an increasingly interconnected world of industrial, scientific, and medical applications. This standard is a pivotal resource in safeguarding operational integrity while fostering innovation across various sectors.
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