IEC 61215-2:2021
(Main)Terrestrial photovoltaic (PV) modules - Design qualification and type approval - Part 2: Test procedures
Terrestrial photovoltaic (PV) modules - Design qualification and type approval - Part 2: Test procedures
IEC 61215-2:2021 lays down requirements for the design qualification of terrestrial photovoltaic modules suitable for long-term operation in open-air climates. This document is intended to apply to all terrestrial flat plate module materials such as crystalline silicon module types as well as thin-film modules. The objective of this test sequence is to determine the electrical characteristics of the module and to show, as far as possible within reasonable constraints of cost and time, that the module is capable of withstanding prolonged exposure outdoors. This second edition of IEC 61215-2 cancels and replaces the first edition of IEC 61215-2 issued in 2016. This edition includes the following significant technical changes with respect to the previous edition:
a. Addition of cyclic (dynamic) mechanical load testing (MQT 20).
b. Addition of a test for detection of potential-induced degradation (MQT 21).
c. Addition of test methods required for bifacial PV modules.
d. Addition of test methods required for flexible modules. This includes the addition of the bending test (MQT 22).
e. Revision of simulator requirements to ensure uncertainty is both well-defined and minimized.
f. Correction to the hot spot endurance test, where the procedure for monolithically integrated (MLI) thin film technologies (MQT 09.2) previously included two sections describing a procedure only appropriate for silicon modules.
g. Selection of three diodes, rather than all, for testing in the bypass diode thermal test (MQT 18).
h. Removal of the nominal module operating test (NMOT), and associated test of performance at NMOT, from the IEC 61215 series.
Modules photovoltaïques (PV) pour applications terrestres - Qualification de la conception et homologation - Partie 2: Procédures d'essai
L'IEC 61215-2:2021 établit les exigences concernant la qualification de conception des modules photovoltaïques terrestres appropriés à un fonctionnement de longue durée dans des climats à l’air libre. Le présent document est destiné à s'appliquer à tous les matériaux de modules à plaque plane pour applications terrestres, tels que les types de modules au silicium cristallin et les modules à couches minces. L'objet de cette séquence d'essais est de déterminer les caractéristiques électriques du module et d’indiquer, dans la mesure du possible avec des contraintes de coût et de temps raisonnables, que le module est capable de supporter une exposition prolongée en site naturel. Cette deuxième édition de l’IEC 61215-2 annule et remplace la première édition de l’IEC 61215‑2 parue en 2016. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente.
a. Ajout de l’essai de charge mécanique cyclique (dynamique) (MQT 20 - Module Quality Test, essai de qualité du module).
b. Ajout d’un essai de détection de la dégradation induite par le potentiel (MQT 21).
c. Ajout de méthodes d’essai exigées pour les modules PV bifaces.
d. Ajout de méthodes d’essai exigées pour les modules flexibles. Cette disposition inclut l’ajout de l’essai de flexion (MQT 22).
e. Révision des exigences du simulateur pour assurer à la fois la définition appropriée et la réduction le plus possible de l’incertitude.
f. Correction de l’essai de tenue à l’échauffement localisé, dont la procédure pour les technologies à couches minces à intégration monolithique (MLI - monolithic integration) (MQT 09.2) comprenait précédemment deux sections décrivant une méthode uniquement adaptée aux modules en silicium.
g. Choix de trois diodes, plutôt que de toutes les diodes d’essai, pour l’essai thermique de la diode de dérivation (MQT 18).
h. Suppression de l’essai nominal de fonctionnement du module (NMOT - nominal module operating test), et de l’essai associé de performances à la température nominale de fonctionnement du module (NMOT - nominal module operating temperature), issus de la série IEC 61215.
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IEC 61215-2 ®
Edition 2.0 2021-02
REDLINE VERSION
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STANDARD
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Terrestrial photovoltaic (PV) modules – Design qualification and type approval –
Part 2: Test procedures
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.
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IEC 61215-2 ®
Edition 2.0 2021-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Terrestrial photovoltaic (PV) modules – Design qualification and type approval –
Part 2: Test procedures
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.160 ISBN 978-2-8322-9500-7
– 2 – IEC 61215-2:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 6
INTRODUCTION . 2
1 Scope and object . 10
2 Normative references . 10
3 Terms and definitions . 12
4 Test procedures . 13
4.1 Visual inspection (MQT 01) . 14
4.1.1 Purpose . 14
4.1.2 Procedure . 14
4.1.3 Requirements . 14
4.2 Maximum power determination (MQT 02) . 14
4.2.1 Purpose . 14
4.2.2 Apparatus . 14
4.2.3 Procedure . 14
4.3 Insulation test (MQT 03) . 15
4.3.1 Purpose . 15
4.3.2 Apparatus . 16
4.3.3 Test conditions . 16
4.3.4 Procedure . 16
4.3.5 Test requirements . 17
4.4 Measurement of temperature coefficients (MQT 04) . 17
4.5 Measurement of nominal module operating temperature (NMOT) (MQT 05)
Placeholder section, formerly NMOT . 17
4.5.1 General .
4.5.2 Principle .
4.5.3 Test procedure .
4.6 Performance at STC and NMOT (MQT 06.1) . 19
4.6.1 Purpose . 19
4.6.2 Apparatus . 19
4.6.3 Procedure for measuring at STC (MQT 06.1) . 19
4.7 Performance at low irradiance (MQT 07) . 20
4.7.1 Purpose . 20
4.7.2 Apparatus . 21
4.7.3 Procedure . 21
4.8 Outdoor exposure test (MQT 08) . 22
4.8.1 Purpose . 22
4.8.2 Apparatus . 22
4.8.3 Procedure . 22
4.8.4 Final measurements . 22
4.8.5 Requirements . 22
4.9 Hot-spot endurance test (MQT 09) . 22
4.9.1 Purpose . 22
4.9.2 Hot-spot effect . 23
4.9.3 Classification of cell interconnection . 23
4.9.4 Apparatus . 25
4.9.5 Procedure . 26
4.9.6 Final measurements . 39
4.9.7 Requirements . 39
4.10 UV preconditioning test (MQT 10) . 39
4.10.1 Purpose . 39
4.10.2 Apparatus . 39
4.10.3 Procedure . 40
4.10.4 Final measurements . 40
4.10.5 Requirements . 40
4.11 Thermal cycling test (MQT 11) . 41
4.11.1 Purpose . 41
4.11.2 Apparatus . 41
4.11.3 Procedure . 42
4.11.4 Final measurements . 43
4.11.5 Requirements . 43
4.12 Humidity-freeze test (MQT 12) . 44
4.12.1 Purpose . 44
4.12.2 Apparatus . 44
4.12.3 Procedure . 44
4.12.4 Final measurements . 44
4.12.5 Requirements . 44
4.13 Damp heat test (MQT 13) . 45
4.13.1 Purpose . 45
4.13.2 Apparatus . 45
4.13.3 Procedure . 45
4.13.4 Final measurements . 46
4.13.5 Requirements . 46
4.14 Robustness of terminations (MQT 14) . 46
4.14.1 Purpose . 46
4.14.2 Retention of junction box on mounting surface (MQT 14.1) . 46
4.14.3 Test of cord anchorage (MQT 14.2) . 47
4.15 Wet leakage current test (MQT 15) . 47
4.15.1 Purpose . 51
4.15.2 Apparatus . 51
4.15.3 Procedure . 51
4.15.4 Requirements . 52
4.16 Static mechanical load test (MQT 16) . 52
4.16.1 Purpose . 52
4.16.2 Apparatus . 53
4.16.3 Procedure . 53
4.16.4 Final measurements . 52
4.16.5 Requirements . 54
4.17 Hail test (MQT 17) . 54
4.17.1 Purpose . 54
4.17.2 Apparatus . 54
4.17.3 Procedure . 55
4.17.4 Final measurements . 56
4.17.5 Requirements . 56
4.18 Bypass diode testing (MQT 18) . 57
4.18.1 Bypass diode thermal test (MQT 18.1) . 57
– 4 – IEC 61215-2:2
...
IEC 61215-2 ®
Edition 2.0 2021-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Terrestrial photovoltaic (PV) modules – Design qualification and type approval –
Part 2: Test procedures
Modules photovoltaïques (PV) pour applications terrestres – Qualification de la
conception et homologation –
Partie 2: Procédures d'essai
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
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CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
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IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
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IEC 61215-2 ®
Edition 2.0 2021-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Terrestrial photovoltaic (PV) modules – Design qualification and type approval –
Part 2: Test procedures
Modules photovoltaïques (PV) pour applications terrestres – Qualification de la
conception et homologation –
Partie 2: Procédures d'essai
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.160 ISBN 978-2-8322-9394-2
– 2 – IEC 61215-2:2021 © IEC 2021
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 11
4 Test procedures . 12
4.1 Visual inspection (MQT 01) . 12
4.1.1 Purpose . 12
4.1.2 Procedure . 12
4.1.3 Requirements . 12
4.2 Maximum power determination (MQT 02) . 12
4.2.1 Purpose . 12
4.2.2 Apparatus . 12
4.2.3 Procedure . 13
4.3 Insulation test (MQT 03) . 13
4.3.1 Purpose . 13
4.3.2 Apparatus . 14
4.3.3 Test conditions . 14
4.3.4 Procedure . 14
4.3.5 Test requirements . 15
4.4 Measurement of temperature coefficients (MQT 04) . 15
4.5 Placeholder section, formerly NMOT . 15
4.6 Performance at STC (MQT 06.1) . 15
4.6.1 Purpose . 15
4.6.2 Apparatus . 15
4.6.3 Procedure for measuring at STC (MQT 06.1) . 16
4.7 Performance at low irradiance (MQT 07) . 16
4.7.1 Purpose . 16
4.7.2 Apparatus . 16
4.7.3 Procedure . 17
4.8 Outdoor exposure test (MQT 08) . 17
4.8.1 Purpose . 17
4.8.2 Apparatus . 17
4.8.3 Procedure . 17
4.8.4 Final measurements . 18
4.8.5 Requirements . 18
4.9 Hot-spot endurance test (MQT 09) . 18
4.9.1 Purpose . 18
4.9.2 Hot-spot effect . 18
4.9.3 Classification of cell interconnection . 19
4.9.4 Apparatus . 20
4.9.5 Procedure . 21
4.9.6 Final measurements . 28
4.9.7 Requirements . 28
4.10 UV preconditioning test (MQT 10) . 28
4.10.1 Purpose . 28
4.10.2 Apparatus . 28
4.10.3 Procedure . 29
4.10.4 Final measurements . 29
4.10.5 Requirements . 29
4.11 Thermal cycling test (MQT 11) . 29
4.11.1 Purpose . 29
4.11.2 Apparatus . 29
4.11.3 Procedure . 30
4.11.4 Final measurements . 31
4.11.5 Requirements . 31
4.12 Humidity-freeze test (MQT 12) . 32
4.12.1 Purpose . 32
4.12.2 Apparatus . 32
4.12.3 Procedure . 32
4.12.4 Final measurements . 32
4.12.5 Requirements . 32
4.13 Damp heat test (MQT 13) . 33
4.13.1 Purpose . 33
4.13.2 Apparatus . 33
4.13.3 Procedure . 33
4.13.4 Final measurements . 34
4.13.5 Requirements . 34
4.14 Robustness of terminations (MQT 14) . 34
4.14.1 Purpose . 34
4.14.2 Retention of junction box on mounting surface (MQT 14.1) . 34
4.14.3 Test of cord anchorage (MQT 14.2) . 34
4.15 We
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