EN IEC 60904-3:2019

SLOVENSKI STANDARD
01-september-2019
Nadomešča:
SIST EN 60904-3:2016
Fotonapetostne naprave - 3. del: Postopki merjenja prizemnih fotonapetostnih
(PV) sončnih naprav s podatki referenčnega spektralnega sevanja
Photovoltaic devices - Part 3: Measurement principles for terrestrial photovoltaic (PV)
solar devices with reference spectral irradiance data
Photovoltaische Einrichtungen - Teil 3: Messgrundsätze für terrestrische photovoltaische
(PV) Einrichtungen mit Angaben über die spektrale Strahlungsverteilung
Dispositifs photovoltaïques - Partie 3: Principes de mesure des dispositifs solaires
photovoltaïques (PV) à usage terrestre incluant les données de l'éclairement spectral de
référence
Ta slovenski standard je istoveten z: EN IEC 60904-3:2019
ICS:
17.240 Merjenje sevanja Radiation measurements
27.160 Sončna energija Solar energy engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60904-3

NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2019
ICS 27.160 Supersedes EN 60904-3:2016
English Version
Photovoltaic devices - Part 3: Measurement principles for
terrestrial photovoltaic (PV) solar devices with reference spectral
irradiance data
(IEC 60904-3:2019)
Dispositifs photovoltaïques - Partie 3: Principes de mesure Photovoltaische Einrichtungen - Teil 3: Messgrundsätze für
des dispositifs solaires photovoltaïques (PV) à usage terrestrische photovoltaische (PV)-Einrichtungen mit
terrestre incluant les données de l'éclairement spectral de Angaben über die spektrale Strahlungsverteilung
référence (IEC 60904-3:2019)
(IEC 60904-3:2019)
This European Standard was approved by CENELEC on 2019-03-22. 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: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60904-3:2019 E

European foreword
The text of document 82/1342/CDV, future edition 4 of IEC 60904-3, prepared by IEC/TC 82 "Solar
photovoltaic energy systems" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 60904-3:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-01-05
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-07-05
document have to be withdrawn
This document supersedes EN 60904-3:2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 60904-3:2019 was approved by CENELEC as a European
Standard without any modification.

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
NOTE 1  Where 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 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 60904-5 -  Photovoltaic devices - Part 5: EN 60904-5 -
Determination of the equivalent cell
temperature (ECT) of photovoltaic (PV)
devices by the open-circuit voltage method
IEC 60904-7 -  Photovoltaic devices - Part 7: Computation EN 60904-7 -
of the spectral mismatch correction for
measurements of photovoltaic devices
IEC 60904-8 -  Photovoltaic devices - Part 8: EN 60904-8 -
Measurement of spectral responsivity of a
photovoltaic (PV) device
IEC 60904-9 -  Photovoltaic devices - Part 9: Solar EN 60904-9 -
simulator performance requirements
IEC 61853-4 -  EN IEC 61853-4 -

IEC 60904-3 ®
Edition 4.0 2019-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Photovoltaic devices –
Part 3: Measurement principles for terrestrial photovoltaic (PV) solar devices

with reference spectral irradiance data

Dispositifs photovoltaïques –
Partie 3: Principes de mesure des dispositifs solaires photovoltaïques (PV) à

usage terrestre incluant les données de l'éclairement énergétique spectral de

référence
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.160 ISBN 978-2-8322-6268-9

– 2 – IEC 60904-3:2019 © IEC 2019
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Measurement principles . 6
5 Reference solar spectral and angular irradiance distribution . 6
Annex A (informative) Use of SMARTS . 58

Figure 1 – Global and direct reference solar spectral irradiance distribution listed in
Table 1 . 57

Table 1 – Reference solar spectral irradiance distribution . 8
Table A.1 – Input data for generation of reference solar spectral irradiance distribution . 58

IEC 60904-3:2019 © IEC 2019 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PHOTOVOLTAIC DEVICES –
Part 3: Measurement principles for terrestrial photovoltaic (PV)
solar devices with reference spectral irradiance data

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 60904-3 has been prepared by IEC technical committee 82: Solar
photovoltaic energy systems.
This fourth edition cancels and replaces the third edition published in 2016. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) all spectral data were recalculated due to some minor calculation and rounding errors in
the third edition; the global spectral irradiance returned to exactly the data of the second
edition;
b) the angular distribution of the irradiance was clarified.
This publication contains an attached file in the form of an Excel spreadsheet. This file is
intended to be used as a complement and does not form an integral part of the publication.

– 4 – IEC 60904-3:2019 © IEC 2019
The text of this International Standard is based on the following documents:
CDV Report on voting
82/1342/CDV 82/1425/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60904 series, published under the general title Photovoltaic
devices, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IEC 60904-3:2019 © IEC 2019 – 5 –
PHOTOVOLTAIC DEVICES –
Part 3: Measurement principles for terrestrial photovoltaic (PV)
solar devices with reference spectral irradiance data

1 Scope
This part of IEC 60904 applies to the following photovoltaic devices for terrestrial applications:
– solar cells with or without a protective cover;
– sub-assemblies of solar cells;
– modules; and
– systems.
NOTE The term “test specimen” is used to denote any of these devices.
The principles contained in this document cover testing in both natural
...