IEC PAS 62722-2-1:2011

IEC/PAS 62722-2-1
®

Edition 1.0 2011-06
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD

Luminaire performance –
Part 2-1: Particular requirements for LED luminaires



IEC/PAS 62722-2-1:2011(E)

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IEC/PAS 62722-2-1
®

Edition 1.0 2011-06
PUBLICLY AVAILABLE
SPECIFICATION

PRE-STANDARD

Luminaire performance –
Part 2-1: Particular requirements for LED luminaires


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
P
ICS 29.140.40 ISBN 978-2-88912-000-0

® Registered trademark of the International Electrotechnical Commission

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– 2 – PAS 62722-2-1  IEC:2011(E)
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 7
4 Product information . 7
5 Not used . 8
6 Test conditions . 8
6.1 General test conditions . 8
6.2 Luminaires with LED modules not in compliance with IEC/PAS 62717 . 9
6.2.1 Testing where reliability data of components available . 9
6.2.2 Testing where no reliability data of components available . 9
6.2.3 Creation of module families to reduce test effort . 9
6.3 LED modules in compliance with IEC/PAS 62717 . 9
6.4 Performance requirements . 9
7 Total input power . 10
8 Light output . 10
8.1 Luminous flux . 10
8.2 Luminous intensity distribution, peak intensity and beam angle . 11
8.2.1 General . 11
8.2.2 Measurement. 11
8.2.3 Luminous intensity distribution . 11
8.2.4 Peak intensity . 11
8.2.5 Beam angle . 11
8.3 Luminaire efficacy . 11
9 Chromaticity co-ordinates, correlated colour temperature and colour rendering . 11
9.1 Chromaticity co-ordinates . 11
9.2 Correlated colour temperature (CCT) . 11
9.3 Colour rendering index (CRI) . 11
10 LED luminaire life . 12
10.1 General . 12
10.2 Lumen maintenance . 12
10.3 Endurance test . 12
11 Verification . 12
Annex A (normative) Method of measuring LED luminaire characteristics . 14
Annex B (informative) Explanation of recommended life time metrics . 15
Bibliography . 16

1)
Table 1 – Product information . 8
Table 2 – Performance criteria of which testing are required . 10
Table 3 – Sample sizes . 13

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PAS 62722-2-1  IEC:2011(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

LUMINAIRE PERFORMANCE –

Part 2-1: Particular requirements for LED luminaires


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
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.
A PAS is a technical specification not fulfilling the requirements for a standard, but made
available to the public.
IEC-PAS 62722-2-1 has been processed by subcommittee 34D: Luminaires, of IEC technical
committee 34: Lamps and related equipment.
The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document
Draft PAS Report on voting
34D/995/PAS 34D/1013/RVD

Following publication of this PAS, which is a pre-standard publication, the technical committee
or subcommittee concerned may transform it into an International Standard.

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– 4 – PAS 62722-2-1  IEC:2011(E)
This PAS shall remain valid for an initial maximum period of 3 years starting from the
publication date. The validity may be extended for a single period up to a maximum of
3 years, at the end of which it shall be published as another type of normative document, or
shall be withdrawn.
The contents of the corrigendum of December 2011 have been included in this copy.

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PAS 62722-2-1  IEC:2011(E) – 5 –
INTRODUCTION
The first edition for a performance PAS for LED luminaires for general lighting applications
acknowledges the need for relevant tests for luminaires using this new source of electrical
light, sometimes called “solid state lighting”. The publication is seen in close context with
simultaneously developed and edited publication of performance standards (or PAS) for
luminaires in general and for LED modules. Changes in the LED luminaires PAS will have
impact on the module standards and vice versa, due to the behaviour of LED. Therefore, in
the development of the present PAS, mutual consultancy of 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
and luminaires.

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– 6 – PAS 62722-2-1  IEC:2011(E)
LUMINAIRE PERFORMANCE –

Part 2-1: Particular requirements for LED luminaires



1 Scope
This PAS specifies the performance requirements for LED luminaires, together with the test
methods and conditions, required to show compliance with this PAS. It applies to LED
luminaires for general lighting purposes, where claims of operational performance are made.
The following types of LED luminaires are distinguished:
– Type A – Luminaires using LED modules that have not been shown to comply with
IEC/PAS 62717;
– Type B – Luminaires using LED modules that have been shown to comply with
IEC/PAS 62717;
– Type C – Luminaires using a LED lamp and covered in IEC/PAS 62722-1.
NOTE The definition of the LED module is given in IEC/TS 62504.
The requirements of this PAS only relate to type testing.
This PAS does not cover LED luminaires that intentionally produce coloured light; neither
does it cover luminaires using OLEDs (organic LEDs).
These performance requirements are additional to the requirements in IEC/PAS 62722-1.
As this PAS has been simultaneously developed and edited with the PAS for LED modules,
where appropriate the compliance of the modules to the provisions of IEC/PAS 62717 may be
transferred to the whole luminaire.
Life time of LED luminaires is in most cases much longer than the practical test times.
Consequently, verification of manufacturer’s life time claims cannot be made in a sufficiently
confident way. For that reason the acceptance or rejection of a manufacturer’s life time claim,
past 25 % of rated life (with a maximum of 6 000 h), is out of the scope of this PAS.
Instead of life time validation this PAS has opted for lumen maintenance categories at a
defined finite test time. Therefore, the category number does not imply a prediction of
achievable life time. The categories are lumen-depreciation character categories showing
behaviour in agreement with manufacturer’s information which is provided before the test is
started.
In order to validate a life time claim, an extrapolation of test data is needed. A general method
of projecting measurement data beyond limited test time is under consideration.
The pass/fail criterion of the life time test as defined in this PAS is different from the life time
metrics claimed by manufacturers. For explanation of recommended life time metrics see
IEC/PAS 62717, Annex C.
It may be expected that LED luminaires which comply with this PAS will start and operate
satisfactorily at voltages between 92 % and 106 % of rated supply voltage and at an ambient
air temperature within the declared range of the manufacturer.
The requirements of this PAS apply in addition to the IEC/PAS 62722-1.

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PAS 62722-2-1  IEC:2011(E) – 7 –
2 Normative references
The following referenced documents are indispensable for the application 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/PAS 62722-1, Luminaire performance – Part 1: General requirements
IEC/PAS 62717, LED modules for general lighting – Performance requirements
IEC/TS 62504, General lighting – LEDs and LED modules – Terms and definitions
3 Terms and definitions
For the purposes of this PAS, the provisions of Clause 3 of IEC/PAS 62717 apply. In addition,
the following definitions are given:
3.1
LED luminaire
luminaire incorporating LED light sources
3.2
family of LED luminaires
group of LED luminaires that have
– LED modules with the same method of control and operation (self-ballasted, semi-
ballasted, non-ballasted);
– LED modules with the same classification according to the method of installation
(reference is made to IEC 62031, Clause 6);
– the same class of protection against electrical shock;
– the same design characteristics, distinguished by common features of materials,
components, and/or method of processing and heat management.
3.3
temperature
t
q
ambient temperature around the luminaire related to the performance of the luminaire
NOTE 1 t  t . For t , see 1.2.25 of IEC 60598-1.
q a a
NOTE 2 For a given life time, the t temperature is a fixed value, not a variable.
q
NOTE 3 There can be
...