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
08-Mar-2018
Completion Date
08-Mar-2018
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IEC 62031
Edition 2.0 2018-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
LED modules for general lighting – Safety specifications
Modules à LED pour éclairage général – Spécifications de sécurité
IEC 62031:2018-03(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62031
Edition 2.0 2018-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
LED modules for general lighting – Safety specifications
Modules à LED pour éclairage général – Spécifications de sécurité
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.99; 31.080.99 ISBN 978-2-8322-5447-9

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- 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

---------------------- Page: 4 ----------------------
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

---------------------- Page: 5 ----------------------
– 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

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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

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

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.
---------------------- Page: 7 ----------------------
– 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.
---------------------- Page: 8 ----------------------
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
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

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".]
---------------------- Page: 9 ----------------------
– 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.
---------------------- Page: 10 ----------------------
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
---------------------- Page: 11 ----------------------
– 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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