LED modules for general lighting - Safety specifications

IEC 62031:2018 is also available as IEC 62031:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62031:2018 specifies general and safety requirements for light-emitting diode (LED) modules:
- non-integrated LED modules (LEDni modules) and semi-integrated LED modules (LEDsi modules) for operation under constant voltage, constant current or constant power;
- Integrated LED modules (LEDi modules) for use on DC supplies up to 250 V or AC supplies up to 1 000 V at 50 Hz or 60 Hz.
This second edition cancels and replaces the first edition published in 2008, Amendment 1:2012 and Amendment 2:2014. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a. the scope was clarified as well as the wording in several other clauses;
b. the normative references were updated;
c. the definitions for "replaceable LED module", "non-replaceable LED module" and "non-user replaceable LED module" were introduced while other definitions covered by IEC 62504 have been removed;
d. the marking clause was restructured and a table added to provide an informative overview;
e. the marking requirements for built-in LED modules were changed;
f. the entry for the marking with the working voltage was revised;
g. the provisions for terminals and heat management were revised;
h. Annex B was deleted;
i. information for luminaire design with regard to working voltage and water contact was introduced;
j. an abnormal temperature test was introduced.

Modules à LED pour éclairage général - Spécifications de sécurité

IEC 62031:2018 est disponible sous forme de IEC 62031:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 62031:2018 spécifie les exigences générales et les exigences de sécurité relatives aux modules à diodes électroluminescentes (LED):
- modules à LED non intégrés (modules LEDni) et les modules à LED semi-intégrés (modules LEDsi) pour fonctionnement sous tension constante, courant constant ou puissance constante;
- modules à LED intégrés (modules LEDi) pour utilisation sur des alimentations à courant continu jusqu’à 250 V ou à courant alternatif 50 Hz ou 60 Hz jusqu’à 1 000 V.
Cette deuxième édition annule et remplace la première édition parue en 2008, l’Amendement 1:2012 et l’Amendement 2:2014. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a. le domaine d’application a été clarifié ainsi que la formulation de plusieurs autres articles;
b. les références normatives ont été mises à jour;
c. les définitions de "module à LED remplaçable", "module à LED non remplaçable" et "module à LED non remplaçable par l’utilisateur" ont été introduites tandis que d’autres définitions couvertes par l’IEC 62504 ont été supprimées;
d. l’article relatif au marquage a été restructuré et un tableau a été ajouté pour donner un aperçu informatif;
e. les exigences de marquage pour les modules à LED à monter ont été modifiées;
f. l’article relatif au marquage pour la tension de service a été révisé;
g. les dispositions relatives aux bornes et à la gestion thermique ont été révisées;
h. l’Annexe B a été supprimée;
i. des informations relatives à la conception des luminaires concernant la tension de service et le contact avec l’eau ont été introduites;
j. un essai de température anormale a été introduit.

General Information

Status
Published
Publication Date
07-Mar-2018
Current Stage
PPUB - Publication issued
Start Date
30-Mar-2018
Completion Date
08-Mar-2018
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LED modules for general lighting – Safety specifications

Modules à LED pour éclairage général – Spécifications de sécurité

IEC 62031:2018-03(en-fr)

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IEC 62031

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Edition 2.0 2018-03




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
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inside










LED modules for general lighting – Safety specifications



Modules à LED pour éclairage général – Spécifications de sécurité



















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

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ICS 29.140.99; 31.080.99 ISBN 978-2-8322-5447-9



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® Registered trademark of the International Electrotechnical Commission
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---------------------- Page: 3 ----------------------
– 2 – IEC 62031:2018 © IEC 2018
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 8
5 General test requirements . 8
6 Marking . 9
6.1 Overview. 9
6.2 Contents of marking for built-in and for independent LED modules . 11
6.3 Location of marking for built-in LED modules . 12
6.4 Location of marking for independent LED modules . 12
6.5 Marking of integral LED modules . 12
6.6 Durability and legibility of marking . 12
7 Terminals . 12
7.1 Integral terminals . 12
7.2 Terminals other than integral terminals . 13
8 Earthing . 13
9 Protection against accidental contact with live parts . 13
10 Moisture resistance and insulation . 13
11 Electric strength . 13
12 Fault conditions . 13
12.1 General . 13
12.2 Overpower condition . 13
13 Conformity testing during manufacture . 14
14 Construction . 14
15 Creepage distances and clearances . 14
16 Screws, current-carrying parts and connections . 14
17 Resistance to heat, fire and tracking . 14
18 Resistance to corrosion . 14
19 Information for luminaire design . 14
20 Heat management . 15
20.1 General . 15
20.2 Thermal interface material . 15
20.3 Heat protection . 15
21 Photobiological safety . 15
21.1 UV radiation . 15
21.2 Blue light hazard . 15
21.3 Infrared radiation . 15
Annex A (normative) Test conditions . 16
Annex B (informative) Conformity testing during manufacture . 17
Annex C (informative) Information for luminaire design . 18
C.1 Heat management . 18
C.1.1 General . 18

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IEC 62031:2018 © IEC 2018 – 3 –
C.1.2 Design freedom . 18
C.1.3 Testing in the luminaire . 20
C.2 Water contact . 20
C.3 Blue light hazard assessment . 20
C.3.1 LED modules of RG0 unlimited and RG1 unlimited . 20
C.3.2 LED modules with a threshold illuminance E . 20
thr
C.4 Working voltage . 20
Annex D (normative) Abnormal temperature test . 21
D.1 Test procedure . 21
D.2 Test setup . 21
Bibliography . 23

Figure 1 – Symbol for built-in LED modules . 11
Figure C.1 – Diagrammatic cross section of an LED module fixed by means of a
lampholder to a luminaire . 19
Figure D.1 – Abnormal temperature test setup . 22

Table 1 – Overview on marking provisions . 9

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– 4 – IEC 62031:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

LED MODULES FOR GENERAL LIGHTING –
SAFETY SPECIFICATIONS

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62031 has been prepared by subcommittee 34A: Lamps, of IEC
technical committee 34: Lamps and related equipment.
This second edition cancels and replaces the first edition published in 2008,
Amendment 1:2012 and Amendment 2:2014. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the scope was clarified as well as the wording in several other clauses;
b) the normative references were updated;
c) the definitions for "replaceable LED module", "non-replaceable LED module" and "non-
user replaceable LED module" were introduced while other definitions covered by
IEC 62504 have been removed;
d) the marking clause was restructured and a table added to provide an informative overview;
e) the marking requirements for built-in LED modules were changed;

---------------------- Page: 6 ----------------------
IEC 62031:2018 © IEC 2018 – 5 –
f) the entry for the marking with the working voltage was revised;
g) the provisions for terminals and heat management were revised;
h) Annex B was deleted;
i) information for luminaire design with regard to working voltage and water contact was
introduced;
j) an abnormal temperature test was introduced.
The text of this International Standard is based on the following documents:
FDIS Report on voting
34A/2052/FDIS 34A/2061/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.
NOTE In this standard, the following print types are used:
– Requirements proper: in roman type.
– Test specifications: in italic type.
– Explanatory matter: in smaller roman type.
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.

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– 6 – IEC 62031:2018 © IEC 2018
LED MODULES FOR GENERAL LIGHTING –
SAFETY SPECIFICATIONS



1 Scope
This document specifies general and safety requirements for light-emitting diode (LED)
modules:
• non-integrated LED modules (LEDni modules) and semi-integrated LED modules (LEDsi
modules) for operation under constant voltage, constant current or constant power;
• Integrated LED modules (LEDi modules) for use on DC supplies up to 250 V or AC
supplies up to 1 000 V at 50 Hz or 60 Hz.
LED modules within the scope of this document can be integral, built-in or independent.
This document is not applicable for LED lamps.
NOTE The performance requirements for LED modules are specified in IEC 62717.
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.
IEC 60598-1:2014, Luminaires – Part 1: General requirements and tests
IEC 60598-1:2014/AMD1:2017
IEC 61032:1997, Protection of persons and equipment by enclosures – Probes for verification
IEC 61347-1:2015, Lamp controlgear – Part 1: General and safety requirements
IEC 61347-1:2015/AMD1:2017
IEC 62471:2006, Photobiological safety of lamps and lamp systems
IEC 62504, General lighting – Light emitting diode (LED) products and related equipment –
Terms and definitions
IEC TR 62778:2014, Application of IEC 62471 for the assessment of blue light hazard to light
sources and luminaires
ISO 4046-4:2016, Paper, board, pulp and related terms – Vocabulary – Part 4: Paper and
board grades and converted products
ISO 7089:2000, Plain washers – Normal series – Product grade A
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62504 and the
following apply.

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IEC 62031:2018 © IEC 2018 – 7 –
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
ultraviolet hazard efficacy of luminous radiation
K
S,v
quotient of an ultraviolet hazard quantity to the corresponding photometric quantity
Note 1 to entry: Ultraviolet hazard efficacy of luminous radiation is expressed in mW/klm.
Note 2 to entry: The ultraviolet hazard efficacy of luminous radiation is obtained by weighting the spectral power
distribution of the lamp or LED module with the UV hazard function S (λ). Information about the relevant UV
UV
hazard function is given in IEC 62471:2006. It only relates to possible hazards regarding UV exposure of human
beings. It does not deal with the possible influence of optical radiation on materials, such as mechanical damage or
discoloration.
3.2
replaceable LED module
LED module, designed to be replaced by an ordinary person or a qualified person
Note 1 to entry: When incorporated into a luminaire, a replaceable LED module can be classified as replaceable,
non-user replaceable or non-replaceable depending on the luminaire design.
3.3
non-replaceable LED module
LED module designed to be a non-replaceable part of the luminaire
Note 1 to entry: An integral LED module is always non-replaceable. A non-replaceable LED module is not always
an integral LED module.
Note 2 to entry: The non-replaceability can be the result of the luminaire design.
3.4
non-user replaceable LED module
LED module designed to be replaced only by the manufacturer, his service agent, or similar
qualified person
Note 1 to entry: When incorporated into a luminaire a non-user replaceable LED module can become classified as
non-replaceable depending on the luminaire design.
3.5
terminal
conductive part of an LED module, provided for connecting that LED module to one or more
external conductors
[SOURCE: IEC 60050-151:2001, 151.12.12, modified – "device, electric circuit or electric
network" has been replaced by "LED module" and the note has been deleted.]
3.6
integral terminal
terminal which forms a non-replaceable part of an LED module and which cannot be tested
separately from the LED module
[SOURCE: IEC 60598-1:2014, 1.2.58, modified – "component" replaced by "terminal",
"luminaire" replaced by "LED module".]

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– 8 – IEC 62031:2018 © IEC 2018
4 General requirements
4.1 LED modules shall be so designed and constructed that they operate without danger to
the user or surroundings when used as intended (see manufacturer’s instructions).
NOTE IEC 61347-1:2015, Annex S gives examples of insulation coordination which can be appropriate for LED
modules.
4.2 LED modules shall be classified, according to the method of installation, as:
– built-in,
– independent, or
– integral.
4.3 For non-integrated LED modules and semi-integrated LED modules, all electrical
measurements, unless otherwise specified, shall be carried out at voltage limits (min/max),
current limits (min/max) or power limits (min/max) and minimum frequency, in a draught-free
room at the temperature limits of the allowed range specified by the manufacturer. Unless the
manufacturer indicates the most critical combination, all combinations (min/max) of
voltage/current/power and temperature shall be tested.
4.4 For integrated LED modules, the electrical measurements shall be carried out at the
tolerance limit values of the rated supply voltage.
4.5 Integral LED modules not having their own enclosure shall be regarded as integral
components of luminaires according to IEC 60598-1:2014, 0.5.1.
4.6 In addition to the requirements of this document, independent LED modules shall
comply with IEC 60598-1:2014 and IEC 60598-1:2014/AMD1:2017.
4.7 If the LED module is a factory sealed unit, it shall not be opened for any tests. In case
of doubt based on the inspection of the LED module and the examination of the circuit
diagram, and in agreement with the manufacturer or responsible vendor, such specially
prepared LED modules shall be submitted for testing so that a fault condition can be
simulated.
4.8 For LED modules with integrated controlgear providing SELV, the requirements
according to IEC 61347-1:2015 and IEC 61347-1:2015/AMD1:2017, Clauses L.5, L.6, L.7, L.8,
L.9, L.10, and L.11 apply.
5 General test requirements
5.1 Tests according to this document shall be type tests.
NOTE The requirements and tolerances in this document are related to testing of a type-test sample submitted by
the manufacturer for that purpose.
Conformity of production is the responsibility of the manufacturer and can need routine tests and quality assurance
in addition to type testing.

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IEC 62031:2018 © IEC 2018 – 9 –
5.2 The test shall be carried out at an ambient temperature of 10 °C to 30 °C. If the
manufacturer specifies a different ambient termperature, this shall be used as test
temperature.
5.3 Unless otherwise specified, the type test shall be carried out on one sample consisting
of one or more items submitted for the purpose of the type test.
In general, all tests shall be carried out on each type of LED module or, where a range of
similar LED modules is involved, for each power in the range or on a representative selection
from the range, as agreed with the manufacturer.
5.4 If the light output has substantially changed, the LED module shall not be used for
further tests.
NOTE Usually, a value of 50 % indicates irreversible changes in the LED module.
5.5 Testing of integral LED modules not having their own enclosure shall be done as part of
the luminaire as far as applicable.
6 Marking
6.1 Overview
The requirements of 6.2, 6.3, 6.4, 6.5, and 6.6 apply. Table 1 gives an overview for
information.
Table 1 – Overview on marking provisions
Item according to 6.2 Built-in LED modules Independent LED Integral LED modules
modules
a) Required Required Required
On the LED module On the LED module On the LED module
datasheet, on the LED
module leaflet, or on the
website of the
manufacturer or
responsible vendor
b) Required Required Required
On the LED module On the LED module On the LED module
datasheet, on the LED
module leaflet, or on the
website of the
manufacturer or
responsible vendor
c) Required Required Required
On the LED module, on On the LED module On the LED module
the LED module datasheet, on the LED
datasheet, on the LED module leaflet, or on the
module leaflet, or on the website of the
website of the manufacturer or
manufacturer or responsible vendor
responsible vendor
d) Required Required Required
On the LED module, on On the LED module, on On the LED module
the LED module datasheet, on the LED
the LED module
datasheet, on the LED datasheet, on the LED module leaflet, or on the
module leaflet, or on the module leaflet, or on the website of the
website of the website of the manufacturer or
manufacturer or manufacturer or responsible vendor
responsible vendor responsible vendor

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– 10 – IEC 62031:2018 © IEC 2018
Item according to 6.2 Built-in LED modules Independent LED Integral LED modules
modules
e) Required if necessary Required if necessary Required
On the LED module, on On the LED module, on On the LED module
the LED module the LED module datasheet, on the LED
datasheet, on the LED datasheet, on the LED module leaflet, or on the
module leaflet, or on the module leaflet, or on the website of the
website of the website of the manufacturer or
manufacturer or manufacturer or responsible vendor
responsible vendor responsible vendor
f) Required Required Required
On the LED module, on On the LED module On the LED module
the LED module datasheet, on the LED
...

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