LED modules for general lighting - Performance requirements

IEC 62717:2014 specifies the performance requirements for LED modules, together with the test methods and conditions, required to show compliance with this standard. This first edition cancels and replaces IEC PAS 62717 published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC PAS 62717:
- all terms and definitions are aligned with IEC 62504 and relevant documents of CIE. For example, general terms like "rated value" are shifted to IEC 62504.
- a statement on the applicability on a population is included.
- the normative references are completed and cleaned from standards that are not in use.
- with regard to EMC, references to harmonic currents are given.
- the change, which has an effect on most parts of the standard, is the split of failure mechanisms into abrupt failures and luminous flux depreciation. Consequently, new terms and definitions, new requirements for lumen maintenance and a complete new structure and contents of Annex C are introduced.
- transition from tpmax to tprated is made, with the background that there is not one tpmax, but a choice of tp(rated) values, in combination with lifetime.
- places where to mark (product, packaging, data sheets) are changed, and as a consequence of the split of failure mechanisms, new parameters are listed. Further, changes in the endurance test (ramping speed of temperature) are reflected in marking.
- the concept of displacement factor instead of power factor is introduced. This led to new definitions, requirements and Annexes E and F.
- the requirements on luminous efficacy are changed.
- the requirements, associated with the family concept are reviewed.
- statistics, based on confidence intervals are removed. This concerns requirements and limits for LED module power and luminous flux and deletion of Annex E.
- new requirements for lumen maintenance are introduced.
- as part of the endurance test, the maximum light decrease after accelerated operation life test is now fixed.
- with regard to the discussion on type test and sample size, the number of pieces in a test sample is drastically reduced, see Table 7.
- Annex A on measuring methods is completely restructured and reviewed, for example for ambient temperature and for shortening of stabilisation time when conducting subsequent light output measurements.
- for electrical characteristics, the ageing time may be chosen as 500 h.
- for photometric data file formats, reference is given to IEC 62722-1.
- mistakes in the photometric code (Annex D) are corrected.
- Annex G on optimised test duration is removed; instead, an INF sheet shall be published.
- from the luminaire standard, a new Annex H on "Test equipment for temperature measurement" is taken over.
- finally, the Bibliography is updated.

Modules de LED pour éclairage général - Exigences de performance

L'IEC 62717:2014 spécifie les exigences de performance pour les modules de LED, ainsi que les méthodes et les conditions d'essai, nécessaires pour démontrer la conformité à la présente norme. Cette première édition annule et remplace l'IEC PAS 62717 paru en 2011. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'IEC PAS 62717:
- tous les termes et définitions sont alignés avec l'IEC 62504 et les documents pertinents de la CIE. Par exemple, les termes généraux comme "valeur nominale" sont décalés par rapport à l'IEC 62504;
- une déclaration sur l'applicabilité d'une population est incluse;
- les références normatives sont complétées et nettoyées des normes qui ne sont pas en usage;
- en ce qui concerne la CEM, les références aux courants harmoniques sont données;
- le changement, qui a un effet sur la plupart des parties de la norme, est la scission du mécanisme de défaillance sur les défaillances brutales et la baisse du flux lumineux. Par conséquent, de nouveaux termes et définitions, de nouvelles exigences pour la conservation du flux lumineux, une nouvelle structure complète et le contenu de l'annexe C sont introduits;
- la transition de tpmax à tprated est faite, avec le fond qu'il n'y a pas un tpmax, mais un choix de tp (classé) des valeurs, en rapport avec la durée de vie;
- les endroits où marquer (produits, emballages, feuilles de données) sont modifiés, en conséquence de la scission des mécanismes de défaillance, de nouveaux paramètres sont répertoriés. En outre, les changements dans l'essai d'endurance (vitesse de montée en température) sont pris en compte dans le marquage;
- la notion de facteur de déplacement à la place du facteur de puissance est introduite. Cela a conduit à de nouvelles définitions, des exigences et les Annexes E et F;
- les exigences en matière d'efficacité lumineuse sont modifiées;
- les exigences associées à la notion de famille sont passés en revue;
- les statistiques, basées sur des intervalles de confiance sont supprimés. Cela concerne les exigences et les limites de la puissance du module LED et du flux lumineux ainsi que la suppression de l'Annexe E;
- de nouvelles exigences relatives à la conservation du flux lumineux sont introduites;
- dans le cadre de l'essai d'endurance, la diminution maximum de lumière après l'essai accéléré de durée de fonctionnement est maintenant corrigée;
- en ce qui concerne la discussion sur l'essai de type et la taille de l'échantillon, le nombre de pièces dans un échantillon de test est fortement réduite, voir Tableau 7;
- l'Annexe A sur les méthodes de mesure est complètement restructurée et révisée, par exemple pour la température ambiante, raccourcir le temps de stabilisation lors des mesures de sortie de la lumière ultérieures;
- pour les caractéristiques électriques, le temps de vieillissement peut être choisi comme 500 h;
- pour les formats de fichiers de données photométriques référence est faite à l'IEC 62722-1;
- les erreurs dans le code photométrique (Annexe D) sont corrigées;
- l'Annexe G de la durée d'essai optimisée est supprimée; à la place, un bulletin INF est publiée;
- depuis la norme du luminaire, une nouvelle Annexe H sur "l'équipement d'essai pour la mesure de la température" est prise en charge;
- enfin, la bibliographie est mise à jour.

General Information

Status
Published
Publication Date
15-Dec-2014
Current Stage
PPUB - Publication issued
Start Date
16-Dec-2014
Completion Date
16-Dec-2014
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IEC 62717
Edition 1.0 2014-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
LED modules for general lighting – Performance requirements
Modules de LED pour éclairage général – Exigences de performance
IEC 62717:2014-12(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62717
Edition 1.0 2014-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
LED modules for general lighting – Performance requirements
Modules de LED pour éclairage général – Exigences de performance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX X
ICS 29.140.99 ISBN 978-2-8322-1968-3

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 62717:2014 © IEC 2014
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 8

1 Scope .............................................................................................................................. 9

1.1 General ................................................................................................................... 9

1.2 Statement ............................................................................................................. 10

2 Normative references .................................................................................................... 10

3 Terms and definitions .................................................................................................... 11

4 Marking ......................................................................................................................... 14

4.1 Mandatory marking ............................................................................................... 14

4.2 Additional marking ................................................................................................ 15

5 Dimensions.................................................................................................................... 16

6 Test conditions .............................................................................................................. 16

6.1 General test conditions ......................................................................................... 16

6.2 Creation of module families to reduce test effort ................................................... 17

6.2.1 General ......................................................................................................... 17

6.2.2 Variations within a family ............................................................................... 17

6.2.3 Compliance testing of family members ........................................................... 18

7 Electrical LED module input ........................................................................................... 18

7.1 LED module power ................................................................................................ 18

7.2 Displacement factor (u.c.) ..................................................................................... 18

8 Light output ................................................................................................................... 19

8.1 Luminous flux ....................................................................................................... 19

8.2 Luminous intensity distribution, peak intensity and beam angle ............................. 19

8.2.1 General ......................................................................................................... 19

8.2.2 Measurement ................................................................................................. 19

8.2.3 Luminous intensity distribution ....................................................................... 19

8.2.4 Peak intensity value ....................................................................................... 19

8.2.5 Beam angle value .......................................................................................... 19

8.3 Luminous efficacy ................................................................................................. 20

9 Chromaticity coordinates, correlated colour temperature (CCT) and colour

rendering ....................................................................................................................... 20

9.1 Chromaticity coordinates ....................................................................................... 20

9.2 Correlated colour temperature (CCT) .................................................................... 21

9.3 Colour rendering index (CRI) ................................................................................ 21

10 LED module life ............................................................................................................. 21

10.1 General ................................................................................................................. 21

10.2 Lumen maintenance .............................................................................................. 21

10.3 Endurance tests .................................................................................................... 23

10.3.1 General ......................................................................................................... 23

10.3.2 Temperature cycling test ............................................................................... 23

10.3.3 Supply switching test ..................................................................................... 25

10.3.4 Accelerated operation life test ....................................................................... 25

11 Verification .................................................................................................................... 25

12 Information for luminaire design ..................................................................................... 26

Annex A (normative) Method of measuring LED module characteristics ............................... 27

---------------------- Page: 4 ----------------------
IEC 62717:2014 © IEC 2014 – 3 –

A.1 General ................................................................................................................. 27

A.2 Electrical characteristics ....................................................................................... 28

A.2.1 Test voltage, current or power ....................................................................... 28

A.2.2 Ageing ........................................................................................................... 28

A.3 Photometric characteristics ................................................................................... 28

A.3.1 Test voltage, current or power ....................................................................... 28

A.3.2 Luminous flux ................................................................................................ 28

A.3.3 Luminous intensity distribution ....................................................................... 28

A.3.4 Peak intensity ................................................................................................ 29

A.3.5 Beam angle ................................................................................................... 29

A.3.6 Colour rendering ............................................................................................ 29

A.3.7 Chromaticity coordinate values ...................................................................... 29

Annex B (informative) Information for luminaire design ........................................................ 30

B.1 Temperature stability ............................................................................................ 30

B.2 Binning procedure of white colour LEDs ................................................................ 30

B.3 Ingress protection ................................................................................................. 30

Annex C (informative) Explanation of recommended LED procuct lifetime metrics ................ 31

C.1 General ................................................................................................................. 31

C.2 Life time specification for gradual light output degradation .................................... 32

C.3 Lifetime specification for abrupt light output degradation ....................................... 33

C.4 Combined gradual and abrupt light output degradation ......................................... 33

C.5 Overview of LED lifetime metrics and related lighting product groups .................... 35

C.6 Example lifetime metric values .............................................................................. 36

Annex D (normative) Explanation of the photometric code ................................................... 38

Annex E (normative) Measurement of displacement factor ................................................... 39

E.1 General ................................................................................................................. 39

E.2 Phase shift angle definition ................................................................................... 39

E.3 Measurements requirements ................................................................................. 40

E.3.1 Measurement circuit and supply source ......................................................... 40

E.3.2 Requirements for measurement equipment .................................................... 40

E.3.3 Test conditions .............................................................................................. 40

Annex F (informative) Explanation of displacement factor .................................................... 41

F.1 General ................................................................................................................. 41

F.2 Recommended values for displacement factor ...................................................... 41

Annex G (informative) Examples of LED dies and LED packages ......................................... 43

G.1 LED die ................................................................................................................. 43

G.2 LED package ........................................................................................................ 44

Annex H (informative) Test equipment for temperature measurement .................................. 45

H.1 General ................................................................................................................. 45

H.2 Set-up and procedure ........................................................................................... 45

Bibliography .......................................................................................................................... 46

Figure 1 – Types of LED modules ........................................................................................... 9

Figure 2 – Luminous flux depreciation over test time ............................................................. 23

Figure C.1 – Lumen output over life of a LED-based luminaire comprised of a single

LED module .......................................................................................................................... 31

Figure C.2 – Life time specification for gradual light output degradation ................................ 32

---------------------- Page: 5 ----------------------
– 4 – IEC 62717:2014 © IEC 2014

Figure C.3 – Reliability curve R for abrupt light output degradation ............................. 33

abrupt

Figure C.4 – Reliability curve R for gradual light output degradation .......................... 34

gradual

Figure C.5 – Combined R and R degradation ................................................... 35

gradual abrupt

Figure C.6 – Overview of LED lifetime metrics ...................................................................... 36

Figure E.1 – Definition of the fundamental current phase shift angle φ (I leads
1 1

U , φ > 0) .................................................................................................................... 39

mains 1
Figure E.2 – Definition of the fundamental current phase shift angle φ (I lags
1 1

U , φ < 0) .................................................................................................................... 40

mains 1

Figure G.1 – Schematic drawings of LED dies ...................................................................... 43

Figure G.2 – Schematic drawings of LED packages .............................................................. 44

Table 1 – Mandatory marking and location of marking ........................................................ 14

Table 2 – LED module life time information ........................................................................... 15

Table 3 – Optional marking and location of marking .............................................................. 16

Table 4 – Allowed variations within a family .......................................................................... 17

Table 5 – Tolerance (categories) on rated chromaticity coordinate values ............................. 20

Table 6 – Lumen maintenance code at an operational time as stated in 6.1 .......................... 22

Table 7 – Sample sizes ......................................................................................................... 26

Table C.1 – Example lifetime metric values for lumen maintenance factor ratings ................. 36

numbers in % ........................................................................................................................ 36

Table C.2 – Example lifetime metric values for abrupt failure ................................................ 37

numbers in % ........................................................................................................................ 37

Table C.3 – Example lifetime metric values of x for median LED lamp life (combined

failures) ................................................................................................................................ 37

numbers in % ........................................................................................................................ 37

Table C.4 – Example lifetime metric values ........................................................................... 37

Table F.1 – Recommended values for displacement factor .................................................... 42

---------------------- Page: 6 ----------------------
IEC 62717:2014 © IEC 2014 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LED MODULES FOR GENERAL LIGHTING –
PERFORMANCE REQUIREMENTS
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

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International Standard IEC 62717 has been prepared by subcommittee 34A: Lamps, of IEC

technical committee 34: Lamps and related equipment.

This first edition cancels and replaces IEC PAS 62717 published in 2011. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to

IEC PAS 62717.

• all terms and definitions are aligned with IEC 62504 and relevant documents of CIE.

For example, general terms like “rated value” are shifted to IEC 62504.
• a statement on the applicability on a population is included.

• the normative references are completed and cleaned from standards that are not in

use.
• with regard to EMC, references to harmonic currents are given.

• the change, which has an effect on most parts of the standard, is the split of failure

mechanisms into abrupt failures and luminous flux depreciation. Consequently, new

---------------------- Page: 7 ----------------------
– 6 – IEC 62717:2014 © IEC 2014
terms and definitions, new requirements for lumen maintenance and a complete new
structure and contents of Annex C are introduced.
• transition from t to t is made, with the background that there is not one t ,
pmax prated pmax
but a choice of t (rated) values, in combination with lifetime.
• places where to mark (product, packaging, data sheets) are changed, and as a

consequence of the split of failure mechanisms, new parameters are listed. Further,

changes in the endurance test (ramping speed of temperature) are reflected in
marking.

• the concept of displacement factor instead of power factor is introduced. This led to

new definitions, requirements and Annexes E and F.
• the requirements on luminous efficacy are changed.
• the requirements, associated with the family concept are reviewed.

• statistics, based on confidence intervals are removed. This concerns requirements and

limits for LED module power and luminous flux and deletion of Annex E.
• new requirements for lumen maintenance are introduced.

• as part of the endurance test, the maximum light decrease after accelerated operation

life test is now fixed.

• with regard to the discussion on type test and sample size, the number of pieces in a

test sample is drastically reduced, see Table 7.

• Annex A on measuring methods is completely restructured and reviewed, for example

for ambient temperature and for shortening of stabilisation time when conducting
subsequent light output measurements.
• for electrical characteristics, the ageing time may be chosen as 500 h.
• for photometric data file formats, reference is given to IEC 62722-1.
• mistakes in the photometric code (Annex D) are corrected.
• Annex G on optimised test duration is removed; instead, an INF sheet shall be
published.
• from the luminaire standard, a new Annex H on “Test equipment for temperature
measurement” is taken over.
• finally, the Bibliography is updated.
The text of this standard is based on the following documents:
FDIS Report on voting
34A/1796/FDIS 34A/1817/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

In this standard, the following print types are used:
– requirements: roman type.
– test specifications: italic type.
– notes: smaller roman type.
---------------------- Page: 8 ----------------------
IEC 62717:2014 © IEC 2014 – 7 –

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication 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: 9 ----------------------
– 8 – IEC 62717:2014 © IEC 2014
INTRODUCTION

The first edition of a performance standard (precursor: IEC PAS 62717) for LED modules for

general lighting applications acknowledges the need for relevant tests for this new source of

electrical light, sometimes called “solid state lighting”. The publication is closely related to

simultaneously developed performance standard publication (which also started with a

Publicly Available Specification) for luminaires in general (IEC 62722-1) and for LED-

luminaires (IEC 62722-2-1). Changes in the LED module standard will have an impact on the

luminaire standards and vice versa, due to the behaviour of LED. Therefore, in the

development of the present standard, a close collaboration between experts of both products

has taken place.

The provisions in the standard represent the technical knowledge of experts from the fields of

the semiconductor (LED chip) industry and of those of the traditional electrical light sources.

Three types of LED-modules are covered: with integral controlgear, with means of control on

board, but with separate controlgear (“semi-ballasted”), and with complete separate

controlgear.
---------------------- Page: 10 ----------------------
IEC 62717:2014 © IEC 2014 – 9 –
LED MODULES FOR GENERAL LIGHTING –
PERFORMANCE REQUIREMENTS
1 Scope
1.1 General

This International Standard specifies the performance requirements for LED modules,

together with the test methods and conditions, required to show compl
...

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