CISPR 15:2018

Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment

CISPR 15:2018 applies to the emission (radiated and conducted) of radiofrequency disturbances from:
- lighting equipment (3.3.16);
- the lighting part of multi-function equipment where this lighting part is a primary function;
- UV and IR radiation equipment for residential and non-industrial applications;
- advertising signs;
- decorative lighting;
- emergency signs.
Excluded from the scope of this document are:
- components or modules intended to be built into lighting equipment and which are not user-replaceable;
- lighting equipment operating in the ISM frequency bands (as defined in Resolution 63 (1979) of the ITU Radio Regulation);
- lighting equipment for aircraft and airfield facilities (runways, service facilities, platforms);
- video signs;
- installations;
- equipment for which the electromagnetic compatibility requirements in the radio-frequency range are explicitly formulated in other CISPR standards, even if they incorporate a built-in lighting function.
The frequency range covered is 9 kHz to 400 GHz. No measurements need to be performed at frequencies where no limits are specified in this document.
Multi-function equipment which is subjected simultaneously to different clauses of this document and/or other standards need to meet the provisions of each clause/standard with the relevant functions in operation.
For equipment outside the scope of this document and which includes lighting as a secondary function, there is no need to separately assess the lighting function against this document, provided that the lighting function was operative during the assessment in accordance with the applicable standard. The radiated emission requirements in this document are not intended to be applicable to the intentional transmissions from a radio transmitter as defined by the ITU, nor to any spurious emissions related to these intentional transmissions.
Within the remainder of this document, wherever the term "lighting equipment" or "EUT" is used, it is meant to be the electrical lighting and similar equipment falling in the scope of this document as specified in this clause. This ninth edition cancels and replaces the eighth edition published in 2013 and its Amendment 1:2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) full editorial revision and restructuring;
b) the restriction to mains and battery operation is deleted in the scope;
c) radiated disturbance limits in the frequency range 300 MHz to 1 GHz have been introduced;
d) the load terminals limits and the CDNE (alternative to radiated emissions) limits have changed;
e) deletion of the insertion-loss requirements and the associated Annex A;
f) introduction of three basic ports: wired network ports, local wired ports and the enclosure port;
g) introduction of a more technology-independent approach;
h) replacement of Annex B (CDNE) by appropriate references to CISPR 16-series of standards;
i) modified requirements for the metal holes of the conical housing;
j) new conducted disturbance measurement method for GU10 self-ballasted lamp;
k) addition of current probe measurement method and limits for various types of ports (in addition to voltage limits and measurement methods);
l) introduction of the term ‘module’ (instead of independent auxiliary) and requirements for measurement of modules using a host (reference) system;
m) modified specifications for stabilization times of EUTs;
n) for large EUT (> 1,6 m), addition of the magnetic field measurement method using a 60 cm loop antenna at 3 m distance (method from CISPR 14-1) as an alternative to the 3 m and 4 m LAS.
Keywords: emission (radiated and conducted) of radiofrequency disturbance
The contents of the Interpretation Sheet 1 of November 2019 have been included in this copy.

Limites et méthodes de mesure des perturbations radioélectriques produites par les appareils électriques d'éclairage et les appareils analogues

CISPR 15:2008 concerne l'émission (rayonnée et conduite) des perturbations radioélectriques:
- des appareils d'éclairage (3.3.16);
- de la partie éclairage des appareils à fonctions multiples lorsque celle-ci est une fonction primaire;
- des appareils à rayonnement ultraviolet et infrarouge destinés aux applications domestiques et non industrielles;
- des enseignes publicitaires;
- de l'éclairage décoratif;
- des enseignes d'urgence.
Les appareils suivants sont exclus du domaine d'application du présent document:
- les composants ou modules destinés à être intégrés dans des appareils d'éclairage et qui ne sont pas remplaçables par l'utilisateur;
- les appareils d'éclairage fonctionnant dans les bandes de fréquences ISM (telles que définies dans la résolution 63 (1979) du Règlement des radiocommunications de l'UIT);
- les appareils d'éclairage des aéronefs et des installations aéroportuaires (pistes, installations de service, plateformes);
- les enseignes vidéo;
- les installations;
- les équipements pour lesquels les exigences relatives à la compatibilité électromagnétique dans la plage de radiofréquences sont formulées de manière explicite dans d'autres normes CISPR, même s'ils possèdent une fonction d'éclairage intégrée.
La plage de fréquences couverte est comprise entre 9 kHz et 400 GHz. Aucune mesure n'est nécessaire aux fréquences pour lesquelles aucune limite n'est spécifiée dans le présent document.
Les appareils à fonctions multiples qui sont simultanément couverts par différents articles du présent document et/ou d'autres normes doivent satisfaire aux dispositions de chaque article/norme, les fonctions concernées étant en fonctionnement.
Pour les équipements qui ne relèvent pas du domaine d'application du présent document et qui comportent un éclairage comme fonction secondaire, il n'est pas nécessaire d'évaluer séparément la fonction d'éclairage selon le présent document, à condition que la fonction d'éclairage soit en fonctionnement lors de l'évaluation conformément à la norme applicable.
Les exigences d'émissions rayonnées indiquées dans le présent document ne s'appliquent pas aux transmissions intentionnelles provenant d'un émetteur radio telles que définies par l'UIT ni aux rayonnements non essentiels liés à ces transmissions.
Dans le reste du présent document, à chaque fois que le terme "appareil d'éclairage" ou "EUT" est utilisé, il désigne un appareil d'éclairage électrique ou analogue relevant du domaine d'application du présent document comme spécifié dans le présent article.
Cette neuvième édition annule et remplace la huitième édition parue en 2013 et son Amendement 1:2015. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) révision et restructuration éditoriale complètes;
b) suppression de la restriction concernant l'alimentation par le réseau et sur batterie dans le domaine d'application;
c) introduction de limites de perturbations rayonnées dans la plage de fréquences comprises entre 300 MHz et 1 GHz;
d) modification des limites aux bornes de sortie et des limites CDNE (alternative aux émissions rayonnées);
e) suppression des exigences de perte d'insertion et de l'Annexe A associée;
f) introduction de trois accès de base: accès réseau câblés, accès câblés locaux et accès par l’enveloppe;
g) introduction d'une approche visant à s'affranchir de la technologie;
h) remplacement de l'Annexe B (CDNE) par des références à la série de normes CISPR 16;
i) modification des exigences relatives aux trous métalliques du support conique;
j) ajout d'une méthode de mesure des perturbations conduites pour les lampes à ballast intégré GU10;
k) ajout d'une méthode de mesure par sonde de courant et de limites pour différents types d'accès (en complément de nouvelles limites de tension et méthodes de mesure);
l) introduction du terme "module" (à la place du terme "appareil auxiliaire indépe

General Information

• Status: Published
• Publication Date: 14-May-2018
• ICS: 33.100.10 - Emission
• Technical Committee: CIS/F - Interference relating to household appliances, electric tools, electrical lighting equipment, and similar apparatus
• Current Stage: PPUB - Publication issued
• Start Date: 15-May-2018
• Completion Date: 18-May-2018

Relations

• Amended By: CISPR 15:2018/AMD1:2024 - Amendment 1 - Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
• Effective Date: 05-Sep-2023
• Revises: CISPR 15:2013 - Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
• Effective Date: 05-Sep-2023
• Revised: CISPR 15:2018/ISH1:2019 - Interpretation Sheet 1 - Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
• Effective Date: 05-Sep-2023
• Revises: CISPR 15:2013/AMD1:2015 - Amendment 1 - Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
• Effective Date: 05-Sep-2023
• Revises: CISPR 15:2013/ISH2:2013 - Interpretation sheet 2 - Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
• Effective Date: 05-Sep-2023
• Revises: CISPR 15:2013/ISH1:2013 - Interpretation sheet 1 - Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equiment
• Effective Date: 05-Sep-2023

Overview

CISPR 15:2018 (Edition 9) is an IEC international standard that specifies limits and methods of measurement of radiofrequency disturbance (both radiated and conducted) from electrical lighting and similar equipment. It covers lighting equipment, lighting parts of multi-function devices (when lighting is a primary function), UV/IR residential equipment, advertising and decorative lighting, and emergency signs. The frequency range addressed is 9 kHz to 400 GHz, with measurements required only where limits are specified.

The edition introduces a technology‑neutral approach, updated measurement methods, and new port definitions to reflect modern lighting systems and networked devices.

Key topics and technical requirements

• Scope and exclusions
  • Applies to mains, battery and other powered lighting equipment; excludes modules not user-replaceable, ISM‑band lighting, aircraft/airfield lighting, video signs, installations, and equipment covered by other CISPR standards.
• Frequency coverage
  • 9 kHz to 400 GHz (measurements only where limits exist).
• Ports and interfaces
  • Introduction of three basic ports: wired network ports, local wired ports, and the enclosure port; port‑specific limits and measurement methods are defined.
• Conducted and radiated emissions
  • Defines measurement methods for conducted disturbances (power and other wired interfaces) and radiated disturbances (various antenna and loop methods across frequency ranges).
• New/updated measurement methods
  • Radiated disturbance limits added for 300 MHz–1 GHz.
  • Current‑probe measurement methods and limits for various ports (in addition to voltage methods).
  • New conducted disturbance method for GU10 self‑ballasted lamps.
  • Magnetic field loop method for large equipment (>1.6 m) as an alternative to standard LAS distances.
• Modules and multi‑function equipment
  • Introduces the term module and requirements for testing modules using a host (reference) system; multi‑function equipment must meet provisions for each applicable function.
• Operational modes and worst‑case testing
  • Guidance (including Interpretation Sheet 1) on selecting worst‑case operating modes (e.g., prescanning modes, guidance for colour‑shifting LED modes).

Practical applications - who uses CISPR 15

• Lighting manufacturers - design for EMC compliance and prepare products for market approval.
• EMC test laboratories - perform standardized conducted and radiated emission testing for certification.
• Product compliance and certification bodies - assess conformity to international emission limits.
• Design and R&D teams - reduce radiofrequency disturbance during development of LED drivers, smart luminaires, advertising displays and modules.
• Regulators, specifiers and procurement - set procurement and safety requirements for public and commercial lighting installations.

Related standards

• CISPR 16‑series - referenced for measurement instrumentation and procedures (replacing previous CDNE annex).
• CISPR 14‑1 - source of magnetic field loop method for large EUTs.
• ITU Radio Regulations (Resolution 63) - referenced for ISM frequency band definitions.

Keywords: emission (radiated and conducted) of radiofrequency disturbance, radio disturbance characteristics, lighting equipment, EMC testing, CISPR 15.

Standards Content (Sample)

CISPR 15 ®
Edition 9.1 2024-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
Limits and methods of measurement of radio disturbance characteristics of
electrical lighting and similar equipment

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CISPR 15 ®
Edition 9.1 2024-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
Limits and methods of measurement of radio disturbance characteristics of
electrical lighting and similar equipment
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.10 ISBN 978-2-8322-9378-2
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CISPR 15
Edition 9.0  2018-05
LIMITS AND METHODS OF MEASUREMENT
OF RADIO DISTURBANCE CHARACTERISTICS OF
ELECTRICAL LIGHTING AND SIMILAR EQUIPMENT

INTERPRETATION SHEET 1
This interpretation sheet has been prepared by subcommittee CISPR F: Interference relating to
household appliances tools, lighting equipment and similar apparatus, of IEC technical
committee CISPR: International special committee on radio interference.
The text of this interpretation sheet is based on the following documents:
DISH Report on voting
CIS/F/777/DISH CIS/F/790/RVDISH

Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.

___________
CISPR 15 interpretation sheet on the worst-case mode of operation
Introduction
Subclause 7.5 specifies the operating modes of lighting equipment that must be considered
during an emission test. A few examples are given to support the explanation of what ‘different
operating modes’ means. The list of examples is of course not exhaustive. Apparently, the
example of ‘colour shifting’ is not clear enough and it is sometimes interpreted as if any possible
colour and/or correlated colour temperature (CCT) setting that lighting equipment may produce
shall be assessed during measurements. Many types of LED lighting may be set in many
different colours and CCTs. Compared to other operational-mode related influence quantities
such as light level regulation, flashing or radio communication, the risk of not capturing the
maximum level of electromagnetic (EM) disturbances due to different colour or CCT settings is
very small, provided that all channels of a LED driver used to change colour or CCT are
operative. The ‘colour shifting’-example was meant for example for a mode where the light
output continuously switches from one colour to another with a certain repetition frequency (e.g.
applied for entertainment, events etc.), instead of emitting a single stable colour and/or CCT.
ICS 33.100.10
– 2 – CISPR 15:2018/ISH1:2019  IEC 2019
Question
What is the meaning of example ‘colour shifting’ as mode of operation to be considered during
testing? What colour and/or colour temperature should be selected in case lighting equipment
can be set in a wide range of colours and/or CCTs?
Interpretation
The example ‘colour shifting’ in the first paragraph of 7.5 of CISPR 15:2018 must not be
interpreted as if any possible colour and/or CCT setting that lighting equipment may produce
shall be assessed during measurements.
Generally, according to 7.5 the worst case shall be found by prescanning every mode of
operation over at least one repetition interval of the specific mode.
Alternatively, measurements can be performed using the setting(s) that are expected to produce
the highest amplitude emissions relative to the limit; and, the reasons for the selection shall be
given in the test report.
A reason could be that highest level of electromagnetic (EM) disturbances will be captured if all
channels of a LED driver used to create different colours and/or CCTs are operative. The
number of channels applied depends on the LED-driver/LED-light-source architecture. Often,
maximum EM disturbances can be achieved by selecting a white colour and/or a CCT setting
in the middle of the specified CCT range.
EXAMPLE Colour variation and CCT variation may be achieved using a 5-channel LED driver powering three LED strings for
colour (RGB) setting and two cool white and warm white LED strings for CCT setting. Hence, in case the lighting equipment under
test is capable to operate at different colours and/or CCTs, a white colour and/or a single CCT in the middle of the specified CCT
range may be selected .
______________
7.4 of CISPR 15:2018, also still applies.

REDLINE VERSION – 2 – CISPR 15:2018+AMD1:2024 CSV
© IEC 2024
CONTENTS
FOREWORD . 7
INTRODUCTION to Amendment 1 . 10
1 Scope . 11
2 Normative references . 12
3 Terms, definitions and abbreviated terms . 13
3.1 General . 13
3.2 General terms and definitions . 14
3.3 Terms and definitions related to equipment . 15
3.4 Terms and definitions related to interfaces and ports . 19
3.5 Abbreviated terms . 20
4 Limits . 22
4.1 General . 22
4.2 Frequency ranges . 23
4.3 Limits and methods for the assessment of wired network ports . 23
4.3.1 Electric power supply interface . 23
4.3.2 Wired network interfaces other than power supply . 23
4.4 Limits and methods for the assessment of local wired ports . 24
4.5 Limits and methods for the assessment of the enclosure port . 25
4.5.1 General . 25
4.5.2 Frequency range 9 kHz to 30 MHz . 25
4.5.3 Frequency range 30 MHz to 1 GHz . 26
4.5.4 Frequency range 1 GHz to 6 GHz . 28
5 Application of the limits . 29
5.1 General . 29
5.2 Identification of the interfaces subject to test . 29
5.3 Application of limits to the interfaces . 29
5.3.1 General . 29
5.3.2 Conducted disturbance requirements for the wired network port . 29
5.3.3 Conducted disturbance requirements for local wired ports . 30
5.3.4 Radiated disturbance requirements for the enclosure port . 30
5.3.5 Multiple interfaces of the same type . 31
5.3.6 Interfaces that can be categorised as multiple types of ports . 31
6 Product specific limit application requirements. 31
6.1 General . 31
6.2 Passive EUT . 31
6.3 Rope lights . 32
6.3.1 General . 32
6.3.2 Requirements for rope lights . 32
6.4 Components and modules . 32
6.4.1 General . 32
6.4.2 Modules having multiple applications . 33
6.4.3 Internal modules . 33
6.4.4 External modules . 33
6.4.5 Single capped self-ballasted lamps . 33
6.4.6 Double-capped self-ballasted lamps, double-capped lamp adapters,
double-capped semi-luminaires and double-capped retrofit lamps used
in fluorescent lamp luminaires . 33

© IEC 2024
6.4.7 ELV lamps . 34
6.4.8 Single-capped semi-luminaires . 34
6.4.9 Independent igniters . 34
6.4.10 Replaceable starters for fluorescent lamps . 34
7 Operating and test conditions of the EUT. 34
7.1 General . 34
7.2 Switching . 35
7.3 Supply voltage and frequency . 35
7.4 Rated lamp load and light regulation . 35
7.5 Operating modes . 36
7.6 Ambient conditions. 36
7.7 Lamps . 36
7.7.1 Type of lamps used in lighting equipment . 36
7.7.2 Ageing times . 36
7.8 Stabilization times . 37
7.9 Operation and loading of wired interfaces . 37
7.9.1 General . 37
7.9.2 Interface intended for a continuous signal or data transmission . 37
7.9.3 Interface not intended for a continuous signal or data transmission . 37
7.9.4 Load . 37
8 Methods of measurement of conducted disturbances . 37
8.1 General . 37
8.2 Measurement instrumentation and methods . 38
8.3 Electrical power supply interface disturbance measurement . 38
8.4 Disturbance measurement of wired network interfaces other than power

supply . 39
8.5 Local wired port disturbance measurement . 39
8.5.1 Electrical power supply of ELV lamps . 39
8.5.2 Other than electrical power supply of ELV lamps . 39
9 Methods of measurement of radiated disturbances . 40
9.1 General . 40
9.2 Intentional wireless transmitters . 40
9.3 Measurement instrumentation and methods . 40
9.3.1 General . 40
9.3.2 LLAS radiated disturbance measurement 9 kHz to 30 MHz . 41
9.3.3 Loop antenna radiated disturbance measurement 9 kHz to 30 MHz . 41
9.3.4 Radiated disturbance measurement 30 MHz to 1 GHz . 42
9.3.5 Radiated disturbance measurement 1 GHz to 6 GHz . 42
10 Compliance with this document . 43
11 Measurement uncertainty . 43
12 Test report . 43
Annex A (normative) Product specific application notes referring to particular
measurement set-ups or operating conditions . 49
A.1 Single-capped self-ballasted lamps . 49
A.1.1 Arrangement for conducted disturbance measurements . 49
A.1.2 Arrangement for radiated disturbance measurements . 49
A.2 Semi-luminaires . 49
A.3 Rope lights . 49

REDLINE VERSION – 4 – CISPR 15:2018+AMD1:2024 CSV
© IEC 2024
A.3.1 Preparation of the EUT . 49
A.3.2 Arrangement for conducted disturbance measurements . 50
A.3.3 Arrangement for radiated disturbance measurements . 50
A.4 Double-capped lamp adapters, double-capped self-ballasted lamps, double-
capped semi-luminaires and double-capped retrofit lamps used in

fluorescent lamp luminaires . 50
A.4.1 For application in linear luminaires with electromagnetic controlgear . 50
A.4.2 For application in linear luminaires with electronic controlgear . 50
A.4.3 For application in other than linear luminaires . 50
A.4.4 Measurement methods . 50
A.5 ELV lamps . 51
A.5.1 Conducted disturbance test . 51
A.5.2 Radiated disturbance tests . 51
A.6 Independent igniters . 51
Annex B (normative) Test arrangements for conducted disturbance measurements . 60
B.1 General . 60
B.2 Arrangement of cables connected to interfaces of wired network ports . 60
B.2.1 Arrangements of electric power supply cables . 60
B.2.2 Arrangement of other than electric power supply cables . 61
B.3 Arrangement of cables connected to interfaces of local wired ports. 61
B.3.1 General . 61
B.3.2 Cables of local-wired ports indirectly connected to a network . 61
B.3.3 Cables of local-wired ports other than the type mentioned in B.3.2 . 62
B.3.4 Power-supply cables of an ELV lamp . 62
B.3.5 Arrangement of measurement probes . 62
B.4 Loading and termination of cables . 62
B.5 Luminaires . 63
B.6 Modules . 63
Annex C (normative) Test arrangements for radiated disturbance measurements . 72
C.1 General . 72
C.2 Arrangements of electric power supply cables . 72
C.3 Arrangement of cables other than electric power supply cables . 72
C.4 Arrangements of EUT, auxiliary equipment and associated equipment for
≥ 30 MHz . 72
C.4.1 General . 72
C.4.2 EUT arrangements for table-top, wall-mounted or ceiling-mounted
applications . 72
C.4.3 EUT arrangements for floor-standing and pole-mounted applications . 72
C.5 Loading and termination of cables . 72
C.6 Arrangements of EUT, auxiliary equipment and associated equipment for
≤ 30 MHz . 73
C.6.1 General . 73
C.6.2 EUT with wired interfaces that connect to single conductor cables . 73
Annex D (informative) Examples of application of limits and test methods . 80
D.1 General . 80
D.2 Case 1: Power controlgear with remote battery connection . 80
D.2.1 EUT description . 80
D.2.2 Interfaces, ports and limits . 80
D.3 Case 2: Universal presence and light detector . 81
D.3.1 EUT description . 81

© IEC 2024
D.3.2 Interfaces, ports and limits . 81
D.4 Case 3: Driver with three load interfaces . 83
D.4.1 EUT description . 83
D.4.2 Interfaces, ports and limits . 83
D.5 Case 4: Ethernet powered OLED . 85
D.5.1 EUT description . 85
D.5.2 Interfaces, ports and limits . 85
D.6 Case 5: Stand-alone occupancy-daylight sensor . 85
D.6.1 EUT description . 85
D.6.2 Interfaces, ports and limits . 86
Annex E (informative) Statistical considerations in the determination of EMC
compliance of mass-produced products .
E.1 General .
E.2 Test method based on a general margin to the limit .
E.3 Test method based on the non-central t-distribution .
E.3.1 Practical implementation by using frequency sub-ranges .
E.3.2 Frequency sub-ranges .
E.3.3 Data distortion occurring at a sub-range boundary .
E.4 Test method based on the binomial distribution.
E.5 Application of larger sample size.
Bibliography . 92

Figure 1 – EMC-ports of an EUT . 20
Figure 2 – Generic depiction of the definitions of test-, ancillary-, auxiliary- and
associated equipment w.r.t. EUT and the test/measurement environment (definitions
given in CISPR 16-2-3) . 22
Figure 3 – EUT and its physical interfaces . 45
Figure 4 – Decision process on the application of limits to the EUT. 47
Figure 5 – Example of a host system with different types of modules . 48
Figure A.1 – Reference luminaire for double-capped lamp adapter, double-capped self-
ballasted lamp, double-capped semi-luminaire and double-capped retrofit lamp used in

linear fluorescent lamp luminaires (see A.4.1) . 52
Figure A.2 – Conical metal reference housing for single capped lamps (see A.1.1) . 54
Figure A.3 – Arrangements for conducted disturbance measurements from non-
restricted ELV lamps (see A.5.1) . 56
Figure A.4 – Arrangements for conducted disturbance measurements from restricted
ELV lamps (see A.5.1) . 58
Figure A.5 – Hose-clamp reference luminaire for self-ballasted lamps with a
GU10 bayonet cap (see A.1.1) . 59
Figure A.6 – Support plate for arranging long cables and rope lights
(see 9.3.2, Clauses A.3 and B.3) . 59
Figure B.1 – Circuit for measuring conducted disturbances from a luminaire
(Figure B.1a), an internal/mounted/replaceable module (Figure B.1b) and a single

capped self-ballasted or independent non-gas-discharge lamp Figure B.1c) . 66
Figure B.2 – Circuit for measuring conducted disturbances from an external module . 68
Figure B.3 – Measuring arrangements for conducted disturbances (see Clause B.5) . 70
Figure B.4 – Measuring arrangement for conducted disturbances (in specific cases,
like very large EUTs) . 71

REDLINE VERSION – 6 – CISPR 15:2018+AMD1:2024 CSV
© IEC 2024
Figure C.1 – EUT arrangement of ceiling-, wall-mounted and table-top applications
during the radiated (OATS, SAC or FAR) disturbance measurement . 75
Figure C.2 – EUT arrangement of floor-standing and pole-mounted applications during

the radiated (OATS, SAC or FAR) disturbance measurement . 76
Figure C.3 – Example of arrangement of a luminaire during the radiated (OATS, SAC
or FAR) disturbance measurement . 77
Figure C.4 – Example of arrangement of an internal module during the radiated
(OATS, SAC or FAR) disturbance measurement . 78
Figure C.5 – Example of arrangement of an external module during the radiated

(OATS, SAC or FAR) disturbance measurement . 79
Figure C.6 – Arrangements of EUTs with interfaces connecting to single conductor
cables . 74
Figure D.1 – Case 1 EUT . 80
Figure D.2 – Case 2 EUT . 82
Figure D.3 – Case 3 EUT . 84
Figure D.4 – Case 4 EUT . 85
Figure D.5 – Case 5 EUT . 86

Table 1 – Disturbance voltage limits at the electric power supply interface. 23
Table 2 – Disturbance voltage limits at wired network interfaces other than power
supply . 23
Table 3 – Disturbance current limits at wired network interfaces other than power
supply . 24
Table 4 – Disturbance voltage limits of local wired ports: electrical power supply
interface of non-restricted ELV lamps . 24
Table 5 – Disturbance voltage limits at local wired ports: local wired ports
other than electrical power supply interface of ELV lamp .
Table 6 – Disturbance current limits at local wired ports: local wired ports other than
electrical power supply interface of ELV lamp . 25
Table 7 – Maximum EUT dimension that can be used for testing using LLAS with
different diameters . 26
Table 8 – LLAS radiated disturbance limits in the frequency range 9 kHz to 30 MHz . 26
Table 9 – Loop antenna radiated disturbance limits in the frequency range 9 kHz to
30 MHz for equipment with a dimension > 1,6 m . 27
Table 10 – Radiated disturbance limits and associated measurement methods in the

frequency range 30 MHz to 1 GHz . 27
Table 13 – Radiated measurement highest frequency . 28
Table 14 – Radiated disturbance requirements at frequencies above 1 GHz . 28
Table 11 – Overview of standardized conducted disturbance measurement methods . 38
Table 12 – Overview of standardized radiated disturbance measurement methods . 40
Table D.1 – Case 1: Summary of interfaces, applicable ports and limits . 81
Table D.2 – Case 2 – Application 1: Summary of interfaces, applicable ports and limits . 82
Table D.3 – Case 2 – Application 2: Summary of interfaces, applicable ports and limits . 83
Table D.4 – Case 3: Summary of interfaces, applicable ports and limits . 84
Table D.5 – Case 4: Summary of interfaces, applicable ports and limits . 85
Table D.6 – Case 5: Summary of interfaces, applicable ports and limits . 86

© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
____________
LIMITS AND METHODS OF MEASUREMENT OF
RADIO DISTURBANCE CHARACTERISTICS OF
ELECTRICAL LIGHTING AND SIMILAR EQUIPMENT

FOREWORD
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6) All users should ensure that they have the latest edition of this publication.
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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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This consolidated version of the official IEC Standard and its amendment has been
prepared for user convenience.
CISPR 15 edition 9.1 contains the ninth edition (2018-05) [documents CIS/F/733/FDIS
and CIS/F/736/RVD], its interpretation sheet (2019-11), and its amendment 1 (2024-07)
[documents CIS/F/851/FDIS and CIS/F/854/RVD].
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendment 1. Additions are in green text, deletions are in strikethrough

REDLINE VERSION – 8 – CISPR 15:2018+AMD1:2024 CSV
© IEC 2024
red text. A separate Final version with all changes accepted is available in this
publication.
International Standard CISPR 15 has been prepared by subcommittee CIS/F: Interference
relating to household appliances tools, lighting equipment and similar apparatus, of IEC
technical committee CISPR: International special committee on radio interference.
This ninth edition cancels and replaces the eighth edition published in 2013 and its
Amendment 1:2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) full editorial revision and restructuring;
b) the restriction to mains and battery operation is deleted in the scope;
c) radiated disturbance limits in the frequency range 300 MHz to 1 GHz have been
introduced;
d) the load terminals limits and the CDNE (alternative to radiated emissions) limits have
changed;
e) deletion of the insertion-loss requirements and the associated Annex A;
f) introduction of three basic ports: wired network ports, local wired ports and the enclosure
port;
g) introduction of a more technology-independent approach;
h) replacement of Annex B (CDNE) by appropriate references to CISPR 16-series of
standards;
i) modified requirements for the metal holes of the conical housing;
j) new conducted disturbance measurement method for GU10 self-ballasted lamp;
k) addition of current probe measurement method and limits for various types of ports (in
addition to voltage limits and measurement methods);
l) introduction of the term ‘module’ (instead of independent auxiliary) and requirements for
measurement of modules using a host (reference) system;
m) modified specifications for stabilization times of EUTs;
n) for large EUT (> 1,6 m), addition of the magnetic field measurement method using a 60 cm
loop antenna at 3 m distance (method from CISPR 14-1) as an alternative to the 3 m and
4 m LAS.
The text of this International Standard is based on the following documents:
FDIS Report on voting
CIS/F/733/FDIS CIS/F/736/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

© IEC 2024
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication 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.
REDLINE VERSION – 10 – CISPR 15:2018+AMD1:2024 CSV
© IEC 2024
INTRODUCTION to Amendment 1
This Amendment includes the following significant technical changes with respect to
a) The voltage probe method for the conducted disturbance measurement of local wired port
other than the electrical power supply interface of ELV lamps has been deleted.
b) Limits and measurement methods have been introduced for radiated disturbance of the
enclosure port in the frequency range 1 GHz to 6 GHz.
c) The test set-up for the conical metal housing for single capped lamps has been rotated.
d) The arrangement of cables connected to interfaces of wired network ports has been
modified. Cable length has been extended to 1,0 m.
e) Measuring arrangements for conducted disturbances for very large EUTs have been
clarified.
f) Annex E regarding statistical methods has been deleted.

© IEC 2024
LIMITS AND METHODS OF MEASUREMENT OF
RADIO DISTURBANCE CHARACTERISTICS OF
ELECTRICAL LIGHTING AND SIMILAR EQUIPMENT

1 Scope
This document applies to sets out requirements for controlling the emission (radiated and
conducted) of radiofrequency disturbances from:
– lighting equipment (3.3.16) and modules, except for the types excluded in the second
paragraph;
– the lighting part of multi-function equipment where this lighting part is a primary function;
NOTE 1 Examples are lighting equipment with visible-light communication, entertainment lighting.
– UV and IR radiation equipment for residential and non-industrial applications;
– simple advertising signs (see 3.3.1);
NOTE 2 Examples are neon tube advertising signs.
– decorative and entertainment lighting (see 3.3.6);
– emergency signs.
Excluded from the scope of this document are:
– components or modules intended to be built into lighting equipment and which are not
user-replaceable;
NOTE 3 See CISPR 30 (all parts) for built-in controlgear.
– lighting equipment operating in the ISM frequency bands (as defined in Resolution 63
(1979) of the ITU Radio Regulation);
– lighting equipment for aircraft and airfield facilities (runways, service facilities, platforms);
– video signs;
– lighting equipment intended exclusively for aircraft or airfield facilities (runways, service
facilities, platforms). However, general-purpose lighting that can be installed in many
locations, including installations not related to aircraft or airfield, is not excluded from the
scope of this document;
– installations;
– equipment for which the electromagnetic compatibility requirements in the radio-frequency
range are explicitly formulated in other CISPR IEC standards, even if they incorporate a
built-in lighting function.
NOTE 42 Examples of exclusions are:
– equipment with built-in lighting devices for display back lighting, scale illumination and signalling;
– SSL-displays;
– video signs and dynamic displays (in scope of CISPR 32);
– range hoods, refrigerators, freezers (in scope of CISPR 14);
– photocopiers, projectors (in scope of CISPR 32);
– lighting e
...

CISPR 15 ®
Edition 9.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
INT ERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
C OMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES

Limits and methods of measurement of radio disturbance characteristics of
electrical lighting and similar equipment

Limites et méthodes de mesure des perturbations radioélectriques produites
par les appareils électriques d'éclairage et les appareils analogues

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CISPR 15 ®
Edition 9.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
INT ERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE

C OMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES

Limits and methods of measurement of radio disturbance characteristics of

electrical lighting and similar equipment

Limites et méthodes de mesure des perturbations radioélectriques produites

par les appareils électriques d'éclairage et les appareils analogues

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10 ISBN 978-2-8322-5648-0

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CISPR 15
Edition 9.0  2018-05
LIMITS AND METHODS OF MEASUREMENT
OF RADIO DISTURBANCE CHARACTERISTICS OF
ELECTRICAL LIGHTING AND SIMILAR EQUIPMENT

INTERPRETATION SHEET 1
This interpretation sheet has been prepared by subcommittee CISPR F: Interference relating to
household appliances tools, lighting equipment and similar apparatus, of IEC technical
committee CISPR: International special committee on radio interference.
The text of this interpretation sheet is based on the following documents:
DISH Report on voting
CIS/F/777/DISH CIS/F/790/RVDISH

Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.

___________
CISPR 15 interpretation sheet on the worst-case mode of operation
Introduction
Subclause 7.5 specifies the operating modes of lighting equipment that must be considered
during an emission test. A few examples are given to support the explanation of what ‘different
operating modes’ means. The list of examples is of course not exhaustive. Apparently, the
example of ‘colour shifting’ is not clear enough and it is sometimes interpreted as if any possible
colour and/or correlated colour temperature (CCT) setting that lighting equipment may produce
shall be assessed during measurements. Many types of LED lighting may be set in many
different colours and CCTs. Compared to other operational-mode related influence quantities
such as light level regulation, flashing or radio communication, the risk of not capturing the
maximum level of electromagnetic (EM) disturbances due to different colour or CCT settings is
very small, provided that all channels of a LED driver used to change colour or CCT are
operative. The ‘colour shifting’-example was meant for example for a mode where the light
output continuously switches from one colour to another with a certain repetition frequency (e.g.
applied for entertainment, events etc.), instead of emitting a single stable colour and/or CCT.
ICS 33.100.10
– 2 – CISPR 15:2018/ISH1:2019  IEC 2019
Question
What is the meaning of example ‘colour shifting’ as mode of operation to be considered during
testing? What colour and/or colour temperature should be selected in case lighting equipment
can be set in a wide range of colours and/or CCTs?
Interpretation
The example ‘colour shifting’ in the first paragraph of 7.5 of CISPR 15:2018 must not be
interpreted as if any possible colour and/or CCT setting that lighting equipment may produce
shall be assessed during measurements.
Generally, according to 7.5 the worst case shall be found by prescanning every mode of
operation over at least one repetition interval of the specific mode.
Alternatively, measurements can be performed using the setting(s) that are expected to produce
the highest amplitude emissions relative to the limit; and, the reasons for the selection shall be
given in the test report.
A reason could be that highest level of electromagnetic (EM) disturbances will be captured if all
channels of a LED driver used to create different colours and/or CCTs are operative. The
number of channels applied depends on the LED-driver/LED-light-source architecture. Often,
maximum EM disturbances can be achieved by selecting a white colour and/or a CCT setting
in the middle of the specified CCT range.
EXAMPLE Colour variation and CCT variation may be achieved using a 5-channel LED driver powering three LED strings for
colour (RGB) setting and two cool white and warm white LED strings for CCT setting. Hence, in case the lighting equipment under
test is capable to operate at different colours and/or CCTs, a white colour and/or a single CCT in the middle of the specified CCT
range may be selected .
______________
7.4 of CISPR 15:2018, also still applies.

– 2 – CISPR 15:2018 © IEC 2018
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 10
3 Terms, definitions and abbreviated terms . 11
3.1 General . 11
3.2 General terms and definitions . 11
3.3 Terms and definitions related to equipment . 12
3.4 Terms and definitions related to interfaces and ports . 16
3.5 Abbreviated terms . 18
4 Limits . 20
4.1 General . 20
4.2 Frequency ranges . 20
4.3 Limits and methods for the assessment of wired network ports . 21
4.3.1 Electric power supply interface . 21
4.3.2 Wired network interfaces other than power supply . 21
4.4 Limits and methods for the assessment of local wired ports . 22
4.5 Limits and methods for the assessment of the enclosure port . 23
4.5.1 General . 23
4.5.2 Frequency range 9 kHz to 30 MHz . 23
4.5.3 Frequency range 30 MHz to 1 GHz . 24
5 Application of the limits . 25
5.1 General . 25
5.2 Identification of the interfaces subject to test . 25
5.3 Application of limits to the interfaces . 26
5.3.1 General . 26
5.3.2 Conducted disturbance requirements for the wired network port . 26
5.3.3 Conducted disturbance requirements for local wired ports . 26
5.3.4 Radiated disturbance requirements for the enclosure port . 26
5.3.5 Multiple interfaces of the same type . 27
5.3.6 Interfaces that can be categorised as multiple types of ports . 27
6 Product specific limit application requirements. 28
6.1 General . 28
6.2 Passive EUT . 28
6.3 Rope lights . 28
6.3.1 General . 28
6.3.2 Requirements for rope lights . 28
6.4 Modules . 28
6.4.1 General . 28
6.4.2 Modules having multiple applications . 29
6.4.3 Internal modules . 29
6.4.4 External modules . 29
6.4.5 Single capped self-ballasted lamps . 30
6.4.6 Double-capped self-ballasted lamps, double-capped lamp adapters,
double-capped semi-luminaires and double-capped retrofit lamps used
in fluorescent lamp luminaires . 30
6.4.7 ELV lamps . 30

6.4.8 Single-capped semi-luminaires . 30
6.4.9 Independent igniters . 30
6.4.10 Replaceable starters for fluorescent lamps . 30
7 Operating and test conditions of the EUT. 31
7.1 General . 31
7.2 Switching . 31
7.3 Supply voltage and frequency . 31
7.4 Rated lamp load and light regulation . 31
7.5 Operating modes . 31
7.6 Ambient conditions. 32
7.7 Lamps . 32
7.7.1 Type of lamps used in lighting equipment . 32
7.7.2 Ageing times . 32
7.8 Stabilization times . 32
7.9 Operation and loading of wired interfaces . 32
7.9.1 General . 32
7.9.2 Interface intended for a continuous signal or data transmission . 32
7.9.3 Interface not intended for a continuous signal or data transmission . 33
7.9.4 Load . 33
8 Methods of measurement of conducted disturbances . 33
8.1 General . 33
8.2 Measurement instrumentation and methods . 33
8.3 Electrical power supply interface disturbance measurement . 34
8.4 Disturbance measurement of wired network interfaces other than power
supply . 34
8.5 Local wired port disturbance measurement . 35
8.5.1 Electrical power supply of ELV lamps . 35
8.5.2 Other than electrical power supply of ELV lamps . 35
9 Methods of measurement of radiated disturbances . 35
9.1 General . 35
9.2 Intentional wireless transmitters . 35
9.3 Measurement instrumentation and methods . 36
9.3.1 General . 36
9.3.2 LLAS radiated disturbance measurement 9 kHz to 30 MHz . 36
9.3.3 Loop antenna radiated disturbance measurement 9 kHz to 30 MHz . 37
9.3.4 Radiated disturbance measurement 30 MHz to 1 GHz . 37
10 Compliance with this document . 38
11 Measurement uncertainty . 38
12 Test report . 38
Annex A (normative) Product specific application notes referring to particular
measurement set-ups or operating conditions . 42
A.1 Single-capped self-ballasted lamps . 42
A.1.1 Arrangement for conducted disturbance measurements . 42
A.1.2 Arrangement for radiated disturbance measurements . 42
A.2 Semi-luminaires . 42
A.3 Rope lights . 42
A.3.1 Preparation of the EUT . 42
A.3.2 Arrangement for conducted disturbance measurements . 43

– 4 – CISPR 15:2018 © IEC 2018
A.3.3 Arrangement for radiated disturbance measurements . 43
A.4 Double-capped lamp adapters, double-capped self-ballasted lamps, double-
capped semi-luminaires and double-capped retrofit lamps used in
fluorescent lamp luminaires . 43
A.4.1 For application in linear luminaires with electromagnetic controlgear . 43
A.4.2 For application in linear luminaires with electronic controlgear . 43
A.4.3 For application in other than linear luminaires . 43
A.4.4 Measurement methods . 43
A.5 ELV lamps . 44
A.5.1 Conducted disturbance test . 44
A.5.2 Radiated disturbance tests . 44
A.6 Independent igniters . 44
Annex B (normative) Test arrangements for conducted disturbance measurements . 50
B.1 General . 50
B.2 Arrangement of cables connected to interfaces of wired network ports . 50
B.2.1 Arrangements of electric power supply cables . 50
B.2.2 Arrangement of other than electric power supply cables . 50
B.3 Arrangement of cables connected to interfaces of local wired ports. 51
B.3.1 General . 51
B.3.2 Cables of local-wired ports indirectly connected to a network . 51
B.3.3 Cables of local-wired ports other than the type mentioned in B.3.2 . 51
B.3.4 Power-supply cables of an ELV lamp . 52
B.3.5 Arrangement of measurement probes . 52
B.4 Loading and termination of cables . 52
B.5 Luminaires . 52
B.6 Modules . 53
Annex C (normative) Test arrangements for radiated disturbance measurements . 57
C.1 General . 57
C.2 Arrangements of electric power supply cables . 57
C.3 Arrangement of cables other than electric power supply cables . 57
C.4 Arrangements of EUT, auxiliary equipment and associated equipment . 57
C.4.1 General . 57
C.4.2 EUT arrangements for table-top, wall-mounted or ceiling-mounted
applications . 57
C.4.3 EUT arrangements for floor-standing and pole-mounted applications . 57
C.5 Loading and termination of cables . 57
Annex D (informative) Examples of application of limits and test methods . 61
D.1 General . 61
D.2 Case 1: Power controlgear with remote battery connection . 61
D.2.1 EUT description . 61
D.2.2 Interfaces, ports and limits . 61
D.3 Case 2: Universal presence and light detector . 62
D.3.1 EUT description . 62
D.3.2 Interfaces, ports and limits . 62
D.4 Case 3: Driver with three load interfaces . 64
D.4.1 EUT description . 64
D.4.2 Interfaces, ports and limits . 64
D.5 Case 4: Ethernet powered OLED . 66
D.5.1 EUT description . 66

D.5.2 Interfaces, ports and limits . 66
D.6 Case 5: Stand-alone occupancy-daylight sensor . 66
D.6.1 EUT description . 66
D.6.2 Interfaces, ports and limits . 67
Annex E (informative) Statistical considerations in the determination of EMC
compliance of mass-produced products . 68
E.1 General . 68
E.2 Test method based on a general margin to the limit . 68
E.3 Test method based on the non-central t-distribution . 69
E.3.1 Practical implementation by using frequency sub-ranges . 69
E.3.2 Frequency sub-ranges . 70
E.3.3 Data distortion occurring at a sub-range boundary . 71
E.4 Test method based on the binomial distribution. 71
E.5 Application of larger sample size. 72
Bibliography . 73

Figure 1 – EMC-ports of an EUT . 18
Figure 2 – Generic depiction of the definitions of test-, ancillary-, auxiliary- and
associated equipment w.r.t. EUT and the test/measurement environment (definitions
given in CISPR 16-2-3) . 20
Figure 3 – EUT and its physical interfaces . 39
Figure 4 – Decision process on the application of limits to the EUT. 40
Figure 5 – Example of a host system with different types of modules . 41
Figure A.1 – Reference luminaire for double-capped lamp adapter, double-capped self-
ballasted lamp, double-capped semi-luminaire and double-capped retrofit lamp used in
linear fluorescent lamp luminaires (see A.4.1) . 45
Figure A.2 – Conical metal housing for single capped lamps (see A.1.1) . 46
Figure A.3 – Arrangements for conducted disturbance measurements from non-
restricted ELV lamps (see A.5.1) . 47
Figure A.4 – Arrangements for conducted disturbance measurements from restricted
ELV lamps (see A.5.1) . 48
Figure A.5 – Hose-clamp reference luminaire for self-ballasted lamps with a
GU10 bayonet cap (see A.1.1) . 49
Figure A.6 – Support plate for arranging long cables and rope lights
(see 9.3.2, Clauses A.3 and B.3) . 49
Figure B.1 – Circuit for measuring conducted disturbances from a luminaire
(Figure B.1a), an internal/mounted/replaceable module (Figure B.1b) and a single
capped self-ballasted or independent non-gas-discharge lamp Figure B.1c) . 54
Figure B.2 – Circuit for measuring conducted disturbances from an external module . 55
Figure B.3 – Measuring arrangements for conducted disturbances (see Clause B.5) . 56
Figure C.1 – EUT arrangement of ceiling-, wall-mounted and table-top applications
during the radiated (OATS, SAC or FAR) disturbance measurement . 58
Figure C.2 – EUT arrangement of floor-standing and pole-mounted applications during
the radiated (OATS, SAC or FAR) disturbance measurement . 59
Figure C.3 – Example of arrangement of a luminaire during the radiated (OATS, SAC
or FAR) disturbance measurement . 59
Figure C.4 – Example of arrangement of an internal module during the radiated
(OATS, SAC or FAR) disturbance measurement . 60

– 6 – CISPR 15:2018 © IEC 2018
Figure C.5 – Example of arrangement of an external module during the radiated
(OATS, SAC or FAR) disturbance measurement . 60
Figure D.1 – Case 1 EUT . 61
Figure D.2 – Case 2 EUT . 63
Figure D.3 – Case 3 EUT . 65
Figure D.4 – Case 4 EUT . 66
Figure D.5 – Case 5 EUT . 67
Figure E.1 – Illustration of difficulties in case the maximum value of the disturbance is
at the boundary of a sub-range . 71

Table 1 – Disturbance voltage limits at the electric power supply interface. 21
Table 2 – Disturbance voltage limits at wired network interfaces other than power
supply . 21
Table 3 – Disturbance current limits at wired network interfaces other than power
supply . 22
Table 4 – Disturbance voltage limits of local wired ports: electrical power supply
interface of non-restricted ELV lamps . 22
Table 5 – Disturbance voltage limits at local wired ports: local wired ports other than
electrical power supply interface of ELV lamp . 23
Table 6 – Disturbance current limits at local wired ports: local wired ports other than
electrical power supply interface of ELV lamp . 23
Table 7 – Maximum EUT dimension that can be used for testing using LLAS with
different diameters . 24
Table 8 – LLAS radiated disturbance limits in the frequency range 9 kHz to 30 MHz . 24
Table 9 – Loop antenna radiated disturbance limits in the frequency range 9 kHz to
30 MHz for equipment with a dimension > 1,6 m . 24
Table 10 – Radiated disturbance limits and associated measurement methods in the
frequency range 30 MHz to 1 GHz . 25
Table 11 – Overview of standardized conducted disturbance measurement methods . 34
Table 12 – Overview of standardized radiated disturbance measurement methods . 36
Table D.1 – Case 1: Summary of interfaces, applicable ports and limits . 62
Table D.2 – Case 2 – Application 1: Summary of interfaces, applicable ports and limits . 63
Table D.3 – Case 2 – Application 2: Summary of interfaces, applicable ports and limits . 64
Table D.4 – Case 3: Summary of interfaces, applicable ports and limits . 65
Table D.5 – Case 4: Summary of interfaces, applicable ports and limits . 66
Table D.6 – Case 5: Summary of interfaces, applicable ports and limits . 67
Table E.1 – General margin to the limit for statistical evaluation . 69
Table E.2 – Sample size and corresponding k factor in a non-central t-distribution . 70
Table E.3 – Application of the binomial distribution . 71

INTERNATIONAL ELECTROTECHNICAL COMMISSION
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
____________
LIMITS AND METHODS OF MEASUREMENT OF
RADIO DISTURBANCE CHARACTERISTICS OF
ELECTRICAL LIGHTING AND SIMILAR EQUIPMENT

FOREWORD
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International Standard CISPR 15 has been prepared by subcommittee CIS/F: Interference
relating to household appliances tools, lighting equipment and similar apparatus, of IEC
technical committee CISPR: International special committee on radio interference.
This ninth edition cancels and replaces the eighth edition published in 2013 and its
Amendment 1:2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) full editorial revision and restructuring;
b) the restriction to mains and battery operation is deleted in the scope;
c) radiated disturbance limits in the frequency range 300 MHz to 1 GHz have been
introduced;
– 8 – CISPR 15:2018 © IEC 2018
d) the load terminals limits and the CDNE (alternative to radiated emissions) limits have
changed;
e) deletion of the insertion-loss requirements and the associated Annex A;
f) introduction of three basic ports: wired network ports, local wired ports and the enclosure
port;
g) introduction of a more technology-independent approach;
h) replacement of Annex B (CDNE) by appropriate references to CISPR 16-series of
standards;
i) modified requirements for the metal holes of the conical housing;
j) new conducted disturbance measurement method for GU10 self-ballasted lamp;
k) addition of current probe measurement method and limits for various types of ports (in
addition to voltage limits and measurement methods);
l) introduction of the term ‘module’ (instead of independent auxiliary) and requirements for
measurement of modules using a host (reference) system;
m) modified specifications for stabilization times of EUTs;
n) for large EUT (> 1,6 m), addition of the magnetic field measurement method using a 60 cm
loop antenna at 3 m distance (method from CISPR 14-1) as an alternative to the 3 m and
4 m LAS.
The text of this International Standard is based on the following documents:
FDIS Report on voting
CIS/F/733/FDIS CIS/F/736/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
 reconfirmed,
 withdrawn,
 replaced by a revised edition, or
 amended.
The contents of the interpretation sheet of November 2019 have been included in this copy.
IMPORTANT – The 'colour inside' logo on the cover page of this publication 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.
LIMITS AND METHODS OF MEASUREMENT OF
RADIO DISTURBANCE CHARACTERISTICS OF
ELECTRICAL LIGHTING AND SIMILAR EQUIPMENT

1 Scope
This document applies to the emission (radiated and conducted) of radiofrequency
disturbances from:
– lighting equipment (3.3.16);
– the lighting part of multi-function equipment where this lighting part is a primary function;
NOTE 1 Examples are lighting equipment with visible-light communication, entertainment lighting.
– UV and IR radiation equipment for residential and non-industrial applications;
– advertising signs;
NOTE 2 Examples are neon tube advertising signs.
– decorative lighting;
– emergency signs.
Excluded from the scope of this document are:
– components or modules intended to be built into lighting equipment and which are not
user-replaceable;
NOTE 3 See CISPR 30 (all parts) for built-in controlgear.
– lighting equipment operating in the ISM frequency bands (as defined in Resolution 63
(1979) of the ITU Radio Regulation);
– lighting equipment for aircraft and airfield facilities (runways, service facilities, platforms);
– video signs;
– installations;
– equipment for which the electromagnetic compatibility requirements in the radio-frequency
range are explicitly formulated in other CISPR standards, even if they incorporate a built-
in lighting function.
NOTE 4 Examples of exclusions are:
– equipment with built-in lighting devices for display back lighting, scale illumination and signaling;
– SSL-displays;
– range hoods, refrigerators, freezers;
– photocopiers, projectors;
– lighting equipment for road v
...