SIST EN 62788-1-5:2017

SLOVENSKI STANDARD
SIST EN 62788-1-5:2017
01-februar-2017
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Measurement procedures for materials used in photovoltaic modules - Part 1-5:
Encapsulants - Measurement of change in linear dimensions of sheet encapsulation
material resulting from applied thermal conditions
Ta slovenski standard je istoveten z: EN 62788-1-5:2016
ICS:
17.040.01 Linearne in kotne meritve na Linear and angular
splošno measurements in general
27.160 6RQþQDHQHUJLMD Solar energy engineering
SIST EN 62788-1-5:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62788-1-5:2017

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SIST EN 62788-1-5:2017


EUROPEAN STANDARD EN 62788-1-5

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2016
ICS 27.160

English Version
Measurement procedures for materials used in photovoltaic
modules - Part 1-5: Encapsulants - Measurement of change in
linear dimensions of sheet encapsulation material resulting from
applied thermal conditions
(IEC 62788-1-5:2016)
Procédures de mesure des matériaux utilisés dans les Messverfahren für Werkstoffe, die in Photovoltaikmodulen
modules photovoltaïques - Partie 1-5: Encapsulants - verwendet werden - Teil 1-5: Verkapselungsstoffe -
Mesurage de la variation des dimensions linéaires des Messung der linearen Längenänderung von
matériaux d'encapsulation en couches minces résultant des Verkapselungsstoffen in Folienform aufgrund der
conditions thermiques appliquées angewendeten thermischen Bedingungen
(IEC 62788-1-5:2016) (IEC 62788-1-5:2016)
This European Standard was approved by CENELEC on 2016-08-02. 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, 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
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 62788-1-5:2016 E

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SIST EN 62788-1-5:2017
EN 62788-1-5:2016
European foreword
The text of document 82/1114/FDIS, future edition 1 of IEC 62788-1-5, prepared by IEC/TC 82 “Solar
photovoltaic energy systems" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 62788-1-5:2016.

The following dates are fixed:
(dop) 2017-06-09
• 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) 2019-12-09
standards conflicting with the
document have to be withdrawn


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 62788-1-5:2016 was approved by CENELEC as a
European Standard without any modification.
2

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SIST EN 62788-1-5:2017
EN 62788-1-5:2016

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 60216-4-1 -  Electrical insulating materials - Thermal EN 60216-4-1 -
endurance properties -- Part 4-1: Ageing
ovens - Single-chamber ovens
ISO 291 -  Plastics - Standard atmospheres for EN ISO 291 2008
conditioning and testing
ISO 11357-2 -  EN ISO 11357-2 2014
ISO 11357-3 -  EN ISO 11357-3 2013
ISO/IEC 17025 2005 General requirements for the competence - -
of testing and calibration laboratories
ASTM C778-06 -  Standard Specification for Standard Sand - -

3

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SIST EN 62788-1-5:2017

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SIST EN 62788-1-5:2017




IEC 62788-1-5

®


Edition 1.0 2016-06




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Measurement procedures for materials used in photovoltaic modules –

Part 1-5: Encapsulants – Measurement of change in linear dimensions of sheet

encapsulation material resulting from applied thermal conditions




Procédures de mesure des matériaux utilisés dans les modules

photovoltaïques –


Partie 1-5: Encapsulants – Mesurage de la variation des dimensions linéaires

des matériaux d'encapsulation en couches minces résultant des conditions

thermiques appliquées










INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 27.160 ISBN 978-2-8322-3494-5



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

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SIST EN 62788-1-5:2017
– 2 – IEC 62788-1-5:2016 © IEC 2016
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Principle . 5
4 Apparatus . 6
5 Test specimens . 6
5.1 Specimen preparation . 6
5.2 Number of specimens . 7
5.3 Preconditioning of specimens . 8
6 Procedure . 8
7 Calculation and expression of results . 9
8 Test report. 10
Annex A (informative) Implementation and design of the test . 11
Bibliography . 12

Figure 1 – Schematic identifying the location of specimens within a sample set . 7
Figure 2 – Schematic identifying the designated measurement locations (AA’, BB’, CC’,
DD’, EE’, aa’, bb’, cc’, dd’, and ee’) for each specimen . 9

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SIST EN 62788-1-5:2017
IEC 62788-1-5:2016 © IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

MEASUREMENT PROCEDURES FOR MATERIALS
USED IN PHOTOVOLTAIC MODULES –

Part 1-5: Encapsulants –
Measurement of change in linear dimensions of sheet
encapsulation material resulting from applied thermal conditions

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 62788-1-5 has been prepared by IEC technical committee 82:
Solar photovoltaic energy systems.
The text of this standard is based on the following documents:
FDIS Report on voting
82/1114/FDIS 82/1134/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.

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SIST EN 62788-1-5:2017
– 4 – IEC 62788-1-5:2016 © IEC 2016
A list of all parts in the IEC 62788 series, published under the general title Measurement
procedures for materials used in photovoltaic modules, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website 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.

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SIST EN 62788-1-5:2017
IEC 62788-1-5:2016 © IEC 2016 – 5 –
MEASUREMENT PROCEDURES FOR MATERIALS
USED IN PHOTOVOLTAIC MODULES –

Part 1-5: Encapsulants –
Measurement of change in linear dimensions of sheet
encapsulation material resulting from applied thermal conditions



1 Scope
This part of IEC 62788 provides a method for measuring the maximum representative change
in linear dimensions of encapsulation sheet material in an unrestricted thermal exposure as
might or might not be seen during photovoltaic (PV) module fabrication. The standard does
not take into account any resulting stresses which may develop due to restricted dimensional
changes or friction during module fabrication.
Data obtained using this method may be used by encapsulation material manufacturers for
the purpose of quality control of their encapsulation material as well as for reporting in
product datasheets. Data obtained using this method may be used by PV module
manufacturers for the purpose of material acceptance, process development, design analysis,
or failure analysis.
This method may also be used to examine other materials, such as backsheets and
frontsheets as described in IEC 62788-2. Certain details of the test (including specimen size
and substrate) are specified for that application in 62788-2.
2 Normative references
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 documen
...