Terrestrial photovoltaic (PV) modules - Design qualification and type approval - Part 2: Test procedures

IEC 61215-2:2016 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 and thermal 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 in general open-air climates. The actual lifetime expectancy of modules so qualified will depend on their design, their environment and the conditions under which they are operated.

Terrestrische Photovoltaik(PV)-Module - Bauarteignung und Bauartzulassung - Teil 2: Prüfverfahren

Modules photovoltaïques (PV) pour applications terrestres - Qualification de la conception et homologation - Partie 2: Procédures d'essai

L'IEC 61215-2:2016 est destinée à s'appliquer à tous les matériaux de modules à plaque plane au silicium cristallin pour applications terrestres (p. ex.: types de modules au silicium cristallin et modules à couches minces). L'objet de cette séquence d'essais est de déterminer les caractéristiques électriques et thermiques du module et de montrer, dans la mesure du possible avec des contraintes de coût et de temps raisonnables, que le module est apte à supporter une exposition prolongée aux climats généraux à l'air libre. La durée de vie réelle des modules ainsi qualifiés dépendra de leur conception, ainsi que de l'environnement et des conditions d'exploitation.

Prizemni fotonapetostni (PV) moduli - Ocena zasnove in odobritev tipa - 2. del: Preskusni postopki

Ta skupina mednarodnih standardov določa zahteve IEC glede ocene zasnove in tipske odobritve prizemnih fotonapetostnih modulov, primernih za dolgotrajno uporabo v običajnih okoljih na prostem, kot je opredeljeno v standardu IEC 60721-2-1. Ta del standarda IEC 61215 je namenjen za uporabo za vse materiale ploščatih prizemnih modulov, kot so vrste modulov iz kristalnega silicija in tankoplastni moduli.
Ta standard se ne uporablja za module za uporabo s koncentrirano sončno svetlobo, lahko pa se uporablja za nizkokoncentracijske module (1 do 3 sončni viri). Za nizkokoncentracijske module se vsi preskusi izvedejo s tokovno, napetostno in močnostno ravnjo, ki so pričakovane pri načrtovani koncentraciji.
Namen tega preskusnega zaporedja je določiti električne in toplotne lastnosti modula ter prikazati (kot je mogoče v razumnih stroškovnih in časovnih omejitvah), da lahko modul prenese učinke dolgotrajne izpostavljenosti v običajnih okoljih na prostem. Dejanska pričakovana življenjska doba tako ocenjenih modulov je odvisna od njihove zasnove, okolja uporabe in pogojev delovanja.

General Information

Status
Published
Publication Date
09-Feb-2017
Current Stage
6060 - Document made available
Due Date
10-Feb-2017
Completion Date
10-Feb-2017

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SLOVENSKI STANDARD
SIST EN 61215-2:2017
01-april-2017
1DGRPHãþD
SIST EN 61215:2005
Prizemni fotonapetostni (PV) moduli - Ocena zasnove in odobritev tipa - 2. del:
Preskusni postopki

Terrestrial photovoltaic (PV) modules - Design qualification and type approval - Part 2:

Test procedures
Ta slovenski standard je istoveten z: EN 61215-2:2017
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
SIST EN 61215-2:2017 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 61215-2:2017
---------------------- Page: 2 ----------------------
SIST EN 61215-2:2017
EUROPEAN STANDARD EN 61215-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2017
ICS 27.160 Supersedes EN 61215:2005 (partially)
English Version
Terrestrial photovoltaic (PV) modules - Design qualification and
type approval - Part 2: Test procedures
(IEC 61215-2:2016)

Modules photovoltaïques (PV) pour applications terrestres - Terrestrische Photovoltaik (PV) Module - Bauarteignung

Qualification de la conception et homologation - Partie 2: und Bauartzulassung - Teil 2: Prüfverfahren

Procédures d'essai (IEC 61215-2:2016)
(IEC 61215-2:2016)

This European Standard was approved by CENELEC on 2016-04-13. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 61215-2:2017 E
---------------------- Page: 3 ----------------------
SIST EN 61215-2:2017
EN 61215-2:2017
European foreword

The text of document 82/1048/FDIS, future edition 1 of IEC 61215-2, prepared by IEC/TC 82 “Solar

photovoltaic energy systems" was submitted to the IEC-CENELEC parallel vote and approved by

CENELEC as EN 61215-2:2017.
The following dates are fixed:
(dop) 2017-08-10
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-02-10
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61215:2005 (partially).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such

patent rights.
Endorsement notice

The text of the International Standard IEC 61215-2:2016 was approved by CENELEC as a European

Standard without any modification.
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SIST EN 61215-2:2017
EN 61215-2:2017
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050 series International Electrotechnical Vocabulary - series
IEC 60068-1 - Environmental testing -- Part 1: General EN 60068-1 -
and guidance
IEC 60068-2-21 - Environmental testing -- Part 2-21: Tests - EN 60068-2-21 -
Test U: Robustness of terminations and
integral mounting devices
IEC 60068-2-78 - Environmental testing -- Part 2-78: Tests - EN 60068-2-78 -
Test Cab: Damp heat, steady state
IEC 60721-2-1 - Classification of environmental conditions - EN 60721-2-1 -
- Part 2-1: Environmental conditions
appearing in nature - Temperature and
humidity
IEC 60891 - Photovoltaic devices - Procedures for EN 60891 -
temperature and irradiance corrections to
measured I-V characteristics
IEC 60904-1 - Photovoltaic devices -- Part 1: EN 60904-1 -
Measurement of photovoltaic current-
voltage characteristics
IEC 60904-2 - Photovoltaic devices - Part 2: EN 60904-2 -
Requirements for photovoltaic reference
devices
IEC 60904-3 - Photovoltaic devices - Part 3: EN 60904-3 -
Measurement principles for terrestrial
photovoltaic (PV) solar devices with
reference spectral irradiance data
IEC 60904-7 - Photovoltaic devices -- Part 7: EN 60904-7 -
Computation of the spectral mismatch
correction for measurements of
photovoltaic devices
IEC 60904-8 - Photovoltaic devices -- Part 8: EN 60904-8 -
Measurement of spectral response of a
photovoltaic (PV) device
IEC 60904-9 - Photovoltaic devices -- Part 9: Solar EN 60904-9 -
simulator performance requirements
IEC 60904-10 - Photovoltaic devices -- Part 10: Methods of EN 60904-10 -
linearity measurement
IEC 61215-1 - Terrestrial photovoltaic (PV) modules - EN 61215-1 -
Design qualification and type approval --
Part 1: Requirements for testing
IEC 61853-2 - Photovoltaic (PV) module performance - -
testing and energy rating -- Part 2: Spectral
response, incidence angle and module
operating temperature measurements
IEC 62790 - Junction boxes for photovoltaic modules - EN 62790 -
Safety requirements and tests
ISO 868 - Plastics and ebonite - Determination of EN ISO 868 -
indentation hardness by means of a
durometer (Shore hardness)
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SIST EN 61215-2:2017
EN 61215-2:2017
IEC/TS 61836 - Solar photovoltaic energy systems - CLC/TS 61836 -
Terms, definitions and symbols
---------------------- Page: 6 ----------------------
SIST EN 61215-2:2017
IEC 61215-2
Edition 1.0 2016-03
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 978-2-8322-3205-7

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: 7 ----------------------
SIST EN 61215-2:2017
– 2 – IEC 61215-2:2016 © IEC 2016
CONTENTS

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

INTRODUCTION ................................................................................................................... 7

1 Scope and object ........................................................................................................... 8

2 Normative references..................................................................................................... 8

3 Terms and definitions .................................................................................................... 9

4 Test procedures .......................................................................................................... 10

4.1 Visual inspection (MQT 01) ................................................................................. 10

4.1.1 Purpose ....................................................................................................... 10

4.1.2 Procedure .................................................................................................... 10

4.1.3 Requirements .............................................................................................. 11

4.2 Maximum power determination (MQT 02) ............................................................. 11

4.2.1 Purpose ....................................................................................................... 11

4.2.2 Apparatus .................................................................................................... 11

4.2.3 Procedure .................................................................................................... 11

4.3 Insulation test (MQT 03) ...................................................................................... 11

4.3.1 Purpose ....................................................................................................... 11

4.3.2 Apparatus .................................................................................................... 12

4.3.3 Test conditions ............................................................................................ 12

4.3.4 Procedure .................................................................................................... 12

4.3.5 Test requirements ........................................................................................ 12

4.4 Measurement of temperature coefficients (MQT 04) ............................................. 12

4.5 Measurement of nominal module operating temperature (NMOT) (MQT 05) .......... 13

4.5.1 General ....................................................................................................... 13

4.5.2 Principle ...................................................................................................... 13

4.5.3 Test procedure ............................................................................................. 13

4.6 Performance at STC and NMOT (MQT 06) ........................................................... 14

4.6.1 Purpose ....................................................................................................... 14

4.6.2 Apparatus .................................................................................................... 14

4.6.3 Procedure .................................................................................................... 14

4.7 Performance at low irradiance (MQT 07) .............................................................. 15

4.7.1 Purpose ....................................................................................................... 15

4.7.2 Apparatus .................................................................................................... 15

4.7.3 Procedure .................................................................................................... 15

4.8 Outdoor exposure test (MQT 08) ......................................................................... 15

4.8.1 Purpose ....................................................................................................... 15

4.8.2 Apparatus .................................................................................................... 15

4.8.3 Procedure .................................................................................................... 16

4.8.4 Final measurements ..................................................................................... 16

4.8.5 Requirements .............................................................................................. 16

4.9 Hot-spot endurance test (MQT 09) ....................................................................... 16

4.9.1 Purpose ....................................................................................................... 16

4.9.2 Hot-spot effect ............................................................................................. 16

4.9.3 Classification of cell interconnection ............................................................. 17

4.9.4 Apparatus .................................................................................................... 19

4.9.5 Procedure .................................................................................................... 19

4.9.6 Final measurements ..................................................................................... 27

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SIST EN 61215-2:2017
IEC 61215-2:2016 © IEC 2016 – 3 –

4.9.7 Requirements .............................................................................................. 27

4.10 UV preconditioning test (MQT 10) ........................................................................ 27

4.10.1 Purpose ....................................................................................................... 27

4.10.2 Apparatus .................................................................................................... 27

4.10.3 Procedure .................................................................................................... 28

4.10.4 Final measurements ..................................................................................... 28

4.10.5 Requirements .............................................................................................. 28

4.11 Thermal cycling test (MQT 11) ............................................................................. 28

4.11.1 Purpose ....................................................................................................... 28

4.11.2 Apparatus .................................................................................................... 28

4.11.3 Procedure .................................................................................................... 29

4.11.4 Final measurements ..................................................................................... 29

4.11.5 Requirements .............................................................................................. 30

4.12 Humidity-freeze test (MQT 12) ............................................................................. 30

4.12.1 Purpose ....................................................................................................... 30

4.12.2 Apparatus .................................................................................................... 30

4.12.3 Procedure .................................................................................................... 30

4.12.4 Final measurements ..................................................................................... 30

4.12.5 Requirements .............................................................................................. 30

4.13 Damp heat test (MQT 13) .................................................................................... 31

4.13.1 Purpose ....................................................................................................... 31

4.13.2 Procedure .................................................................................................... 31

4.13.3 Final measurements ..................................................................................... 31

4.13.4 Requirements .............................................................................................. 31

4.14 Robustness of terminations (MQT 14) .................................................................. 32

4.14.1 Purpose ....................................................................................................... 32

4.14.2 Retention of junction box on mounting surface (MQT 14.1) ............................ 32

4.14.3 Test of cord anchorage (MQT 14.2) .............................................................. 32

4.15 Wet leakage current test (MQT 15) ...................................................................... 35

4.15.1 Purpose ....................................................................................................... 35

4.15.2 Apparatus .................................................................................................... 35

4.15.3 Procedure .................................................................................................... 36

4.15.4 Requirements .............................................................................................. 36

4.16 Static mechanical load test (MQT 16) .................................................................. 36

4.16.1 Purpose ....................................................................................................... 36

4.16.2 Apparatus .................................................................................................... 37

4.16.3 Procedure .................................................................................................... 37

4.16.4 Final measurements ..................................................................................... 37

4.16.5 Requirements .............................................................................................. 37

4.17 Hail test (MQT 17) ............................................................................................... 38

4.17.1 Purpose ....................................................................................................... 38

4.17.2 Apparatus .................................................................................................... 38

4.17.3 Procedure .................................................................................................... 39

4.17.4 Final measurements ..................................................................................... 39

4.17.5 Requirements .............................................................................................. 40

4.18 Bypass diode testing (MQT 18) ............................................................................ 40

4.18.1 Bypass diode thermal test (MQT 18.1) .......................................................... 40

4.18.2 Bypass diode functionality test (MQT 18.2) ................................................... 42

4.19 Stabilization (MQT 19) ......................................................................................... 43

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SIST EN 61215-2:2017
– 4 – IEC 61215-2:2016 © IEC 2016

4.19.1 General ....................................................................................................... 43

4.19.2 Criterion definition for stabilization ................................................................ 43

4.19.3 Light induced stabilization procedures .......................................................... 44

4.19.4 Other stabilization procedures ...................................................................... 45

4.19.5 Initial stabilization (MQT 19.1) ...................................................................... 45

4.19.6 Final stabilization (MQT 19.2) ....................................................................... 45

Figure 1 – Case S, series connection with optional bypass diode ......................................... 17

Figure 2 – Case PS, parallel-series connection with optional bypass diode .......................... 18

Figure 3 – Case SP, series-parallel connection with optional bypass diode .......................... 18

Figure 4 – Module I-V characteristics with different cells totally shadowed ........................... 20

Figure 5 – Module I-V characteristics with the test cell shadowed at different levels ............. 21

Figure 6 – Hot-spot effect in a MLI thin-film module with serially connected cells .................. 22

Figure 7 – Module I-V characteristics with different cells totally shadowed where the

module design includes bypass diodes ................................................................................ 24

Figure 8 – Module I-V characteristics with the test cell shadowed at different levels

where the module design includes bypass diodes ................................................................ 25

Figure 9 – Thermal cycling test – Temperature and applied current profile ........................... 29

Figure 10 – Humidity-freeze cycle – Temperature and humidity profile ................................. 31

Figure 11 – Typical arrangement for the cord anchorage pull test for component testing ....... 34

Figure 12 – Typical arrangement for torsion test .................................................................. 34

Figure 13 – Hail-test equipment .......................................................................................... 38

Figure 14 – Hail test impact locations: top for wafer/cell based technologies, bottom

for monolithic processed thin film technologies .................................................................... 40

Figure 15 – Bypass diode thermal test ................................................................................. 41

Table 1 – Pull forces for cord anchorage test ....................................................................... 33

Table 2 – Values for torsion test .......................................................................................... 33

Table 3 – Ice-ball masses and test velocities ....................................................................... 39

Table 4 – Impact locations .................................................................................................. 39

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SIST EN 61215-2:2017
IEC 61215-2:2016 © IEC 2016 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
TERRESTRIAL PHOTOVOLTAIC (PV) MODULES –
DESIGN QUALIFICATION AND TYPE APPROVAL –
Part 2: Test procedures
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.

International Standard IEC 61215-2 has been prepared by IEC technical committee 82: Solar

photovoltaic energy systems.

This first edition of IEC 61215-2 cancels and replaces the second edition of IEC 61215 (2005)

and parts of the second edition of 61646 (2008) and constitutes a technical revision.

The main technical changes with regard to these previous editions are as follows:

This standard includes the testing procedures – formally Clause 10 – of the previous edition.

Revisions were made to subclauses NMOT (replaces NOCT – MQT 05), performance

measurements (MQT 06), robustness of terminations (MQT 14) and stabilization (MQT 19).

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SIST EN 61215-2:2017
– 6 – IEC 61215-2:2016 © IEC 2016
The text of this standard is based on the following documents:
FDIS Report on voting
82/1048/FDIS 82/1076/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.

A list of all parts in the IEC 61215 series, published under the general title Terrestrial

photovoltaic (PV) modules – Design qualification and type approval, can be found on the IEC

website.

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

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: 12 ----------------------
SIST EN 61215-2:2017
IEC 61215-2:2016 © IEC 2016 – 7 –
INTRODUCTION

Whereas Part 1 of this standard series describes requirements (both in general and specific

with respect to device technology), the sub-parts of Part 1 define technology variations and

Part 2 defines a set of test procedures necessary for design qualification and type approval.

The test procedures described in Part 2 are valid for all device technologies.
---------------------- Page: 13 ----------------------
SIST EN 61215-2:2017
– 8 – IEC 61215-2:2016 © IEC 2016
TERRESTRIAL PHOTOVOLTAIC (PV) MODULES –
DESIGN QUALIFICATION AND TYPE APPROVAL –
Part 2: Test procedures
1 Scope and object

This International Standard series lays down IEC requirements for the design qualification and

type approval of terrestrial photovoltaic modules suitable for long-term operation in general

open-air climates, as defined in IEC 60721-2-1. This part of IEC 61215 is intended to apply to

all terrestrial flat plate module materials such as crystalline silicon module types as well as

thin-film modules.

This standard does not apply to modules used with concentrated sunlight although it may be

utilized for low concentrator modules (1 to 3 suns). For low concentration modules, all tests

are performed using the current, voltage and power levels expected at the design
concentration.

The objective of this test sequence is to determine the electrical and thermal characteristics of

the module and to show, as far as possible within reasonable constraints of cost and time,

that the module is
...

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