CISPR TR 30-3:2026

CISPR TR 30-3 ®
Edition 1.0 2026-01
TECHNICAL
REPORT
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE

Test method on electromagnetic emissions -
Part 3: Electronic control gear for LED light sources - Built-in control gear
ICS 33.100.10  ISBN 978-2-8327-0948-1

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CONTENTS
FOREWORD . 2
INTRODUCTION . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviated terms . 5
3.1 Terms and definitions . 5
3.2 Abbreviated terms. 7
4 Reference luminaire . 7
4.1 Construction. 7
4.2 EUT . 8
4.3 LED light source load . 8
4.3.1 Generic versatile load. 8
4.3.2 Specific load. 8
4.3.3 Mounting on the baseplate . 9
4.4 Selection of size of the reference luminaire and positioning of EUT and
versatile loads . 9
4.5 Mounting and wiring schemes . 9
4.6 Grounding . 10
4.7 Wiring. 10
4.8 Additional components and other provisions . 10
5 Test procedure . 11
5.1 General . 11
5.2 Operating points and test conditions of the ECG . 11
6 Test report . 12
Annex A (informative) Reference luminaire specifications, mounting and wiring
schemes . 13
Annex B (informative) Specification of a LED light source versatile load . 17
B.1 Schematic . 17
B.2 Examples . 17
Annex C (informative) Background on the development and validation of the reference
luminaires . 19
Bibliography . 21

Figure 1 – Depiction of the terms associated with EUT and the reference luminaire . 6
Figure 2 – Operating points (blue dots) in V-I operating range for four types of LED ECGs . 12
Figure A.1 – Baseplates with mounting and wiring schemes . 15
Figure A.2 – Example of cascading two baseplates with dimensions 0,6 m × 0,6 m to
build a 0,6 m × 1,2 m baseplate . 16
Figure B.1 – Schematic principle of a LED light source versatile load . 17
Figure B.2 – Example of a LED light source versatile load . 18
Figure C.1 – Influence quantities affecting disturbance properties of a LED luminaire . 19

Table 1 – Selection of size of the baseplate, location of the EUT and distribution of the
versatile loads . 9
Table 2 – Overview of reference luminaire grounding connection for safety protection
class I applications . 11
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Test method on electromagnetic emissions -
Part 3: Electronic control gear for LED light sources - Built-in control gear

FOREWORD
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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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shall not be held responsible for identifying any or all such patent rights.
CISPR TR 30-3 has been prepared by CISPR subcommittee F: Interference relating to
household appliances, electric tools, electrical lighting equipment and similar apparatus. It is a
Technical Report.
The text of this Technical Report is based on the following documents:
Draft Report on voting
CIS/F/908/DTR CIS/F/913/RVDTR
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 Technical Report 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.
A list of all parts of the CISPR 30 series can be found, under the general title Test method on
electromagnetic emissions, on the IEC website
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.
INTRODUCTION
Requirements and test methods to limit radio-frequency disturbances from lighting equipment
are standardized in CISPR 15:2018 and CISPR 15:2018/AMD1:2024. They are restricted to
those kinds of lighting equipment which are considered as finished products and intended to be
placed on the market for the end user, viz. luminaires, self-ballasted lamps and modules such
as independent control gear and LED control gears. No emission requirements apply to
components or modules intended to be built into luminaires.
Electronic control gear can be built into a number of different types of luminaires: not only in
luminaires of different manufacturers but also in different types of luminaires of a given
manufacturer. Each of those luminaires including the same electronic control gear can be tested
separately, although disturbance data of a certain luminaire can also very well be predicted
from a test using a reference luminaire equipped with the same electronic control gear and
similar light sources.
The CISPR TR 30 series [1] are technical reports in which reference luminaires are given for
testing electronic control gears for specific light source technologies .
Each part of CISPR 30 series is independent and describes the disturbance measurement test
set-up for electronic control gear used together with a special light source family (applying a
different technology, topology or form factor). The formatting into separately published parts
provides for ease of future amendments and revisions. Additional requirements will be added
when a need for them is recognised.
The following sub-parts are published:
– CISPR TR 30-1 describes reference luminaires for emission testing of electronic control
gear for single- and double-capped fluorescent lamps [3];
– CISPR TR 30-2 describes reference luminaires for emission testing of electronic control
gear for discharge lamps other than fluorescent lamps [4];
– CISPR TR 30-3 (this document) describes reference luminaires for emission testing of built-
in control gear for LED light sources.

___________
For definitions of the terms used in the context of electromagnetic emission testing (e.g. lighting equipment,
module, component, etc.) refer to CISPR 15:2018 and CISPR 15:2018/AMD1:2024.
Numbers between brackets refer to the Bibliography.
Edition 1 of CISPR TR 30 [2] was published in 2001, including a specification for a reference luminaire for
disturbance measurement of electronic control gear for single- and double-capped fluorescent lamps. In 2012,
CISPR TR 30-1 [3], which replaces CISPR TR 30, was published in conjunction with CISPR TR 30-2 [4].
1 Scope
This document details the construction and parameters of a reference luminaire, a
measurement procedure and conditions for assessment of the radio disturbance characteristics
of electronic control gears (ECG) for LED light sources applied inside.
This document is limited to ECGs (also called “control gears”) as well as end-user replaceable
ECGs with the following characteristics or applications:
– applied in luminaires with safety protection class I;
NOTE This means that the mains interface of the ECG itself can have either a protective earth (PE) or a
functional earth (FE) terminal. For details, see 4.6 and Table 2.
– linear form factor, i.e. fits within the space provision defined in Figure A.1 a).
– ECGs with a rated output power less than 360 W.
Excluded from the scope of this document are:
– ECGs for applications that are excluded in CISPR 15:2018 and CISPR 15:2018/AMD1:2024,
and
– control gear with only L, N input terminals (without PE terminal).
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 15:2018, Limits and methods of measurement of radio disturbance characteristics of
electrical lighting and similar equipment
CISPR 15:2018/AMD1:2024
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms and definitions given in CISPR 15:2018 and
CISPR 15:2018/AMD1:2024 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
– IEC Electropedia: available at https://www.electropedia.org/
– ISO Online browsing platform: available at https://www.iso.org/obp
3.1 Terms and definitions
3.1.1
built-in control gear
control gear designed to be built into a luminaire, a box, an enclosure or the like and not
intended to be mounted outside a luminaire
[SOURCE: IEC 60050-845:2020, 845-28-053, modified – "lamp control gear" has been replaced
by "control gear" and Note 1 to entry has been deleted.]
3.1.2
electronic control gear
ECG
electrical device between the electrical supply and one or more light source(s) which can serve
to transform the supply voltage, limit the current of the light source(s) to the required value,
provide starting voltage and preheating current, prevent cold starting, correct power factor,
reduce radio interference, include means for dimming, and further control functions
Note 1 to entry: This definition deviates from IEC 60598-1:2024, 3.71.
3.1.3
equipment under test
EUT
ECG used as part of the reference luminaire
Note 1 to entry: See also Figure 1.

Figure 1 – Depiction of the terms associated with EUT and the reference luminaire
3.1.4
electronic control gear for LED light sources
unit inserted between the supply and one or more LED modules which serves to supply the LED
module(s) with its (their) rated voltage or rated current
3.1.5
LED light source versatile load
device containing a collection of LEDs that can be interconnected and switched on or off and
used for the purpose of providing various voltage or current load settings for testing the ECG
under test
Note 1 to entry: See also Figure 1.
3.1.6
luminaire
lighting equipment which distributes, filters or transforms the light transmitted from one or more
lamps or light sources and which includes all the parts necessary for supporting, fixing and
protecting the lamps, but not usually the lamps themselves, and, where necessary, circuit
auxiliaries, together with the means to connect them to the supply
Note 1 to entry: The control gear, control units, cabling, housing and mounting are included in the definition of a
luminaire.
Note 2 to entry: This definition comes from the definition given in the luminaire product standard IEC 60598-1:2024.
In the latter standard a luminaire does not include a lamp, unless the lamp is an integral part. For the purpose of
emission testing in this document, however, a luminaire always contains a lamp or a light source or a resistive load.
[SOURCE: IEC 60598-1:2024, 3.1, modified – The definition has been rephrased and the notes
to entry added.]
3.1.7
module
electronic or electrical part which serves a specific function or functions of a lighting application
and can contain radio-frequency sources, which is intended for application in a luminaire or in
an installation by an end user and which is intended to be marketed and/or sold separately from
a lighting apparatus or system
Note 1 to entry: Examples are: self-ballasted lamp, starter, electronic control gear, wall dimmer, control unit, LED
module.
[SOURCE: CISPR 15:2018, 3.3.18]
3.1.8
refer
...