Photovoltaic (PV) module safety qualification - Part 1: Requirements for construction

IEC 61730-1:2016 specifies and describes the fundamental construction requirements for photovoltaic (PV) modules in order to provide safe electrical and mechanical operation. Specific topics are provided to assess the prevention of electrical shock, fire hazards, and personal injury due to mechanical and environmental stresses. This part of IEC 61730 pertains to the particular requirements of construction. IEC 61730-2 defines the requirements of testing. This International Standard series lays down IEC requirements of terrestrial photovoltaic modules suitable for long-term operation in open-air climates. This standard is intended to apply to all terrestrial flat plate module materials such as crystalline silicon module types as well as thin-film modules. This new edition includes the following significant technical changes with respect to the previous edition: - adaption of horizontal standards and inclusion of IEC 60664 and IEC 61140; - implementation of insulation coordination, overvoltage category, classes, pollution degree and material groups definition of creepage, clearance and distance through insulation.

Photovoltaik (PV) Module - Sicherheitsqualifikation - Teil 1: Anforderungen an den Aufbau

Qualification pour la sûreté de fonctionnement des modules photovoltaïques (PV) - Partie 1: Exigences pour la construction

L'IEC 61730-1:2016 spécifie et décrit les exigences fondamentales de construction pour les modules photovoltaïques (PV) afin de fournir un fonctionnement électrique et mécanique sûr. Des thèmes spécifiques sont fournis pour évaluer la prévention contre les chocs électriques, les risques de feu et les accidents corporels dus à des contraintes mécaniques et environnementales. La présente partie de l'IEC 61730 se rapporte aux exigences particulières de construction. L'IEC 61730-2 présente les exigences d'essais. La présente série de Normes internationales établit les exigences de l'IEC en matière de modules photovoltaïques pour application terrestre adaptés à une utilisation longue durée dans les climats généraux d'air libre. La présente Norme est destinée à s'appliquer à tous les matériels à module à plaque plane pour application terrestre (les types de modules au silicium cristallin et les modules en couches minces, par exemple). Cette nouvelle édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - adaptation des normes horizontales et intégration de l'IEC 60664 et de l'IEC 61140; - intégration des concepts de coordination de l'isolement, de catégorie de surtension, de classes, de degré de pollution et de groupes de matériaux; définition des lignes de fuite, de la distance d'isolement et de la distance à travers l'isolation.

Varnostne zahteve fotonapetostnih (PV) modulov - 1. del: Konstrukcijske zahteve

Ta del standarda IEC 61730 določa in opisuje temeljne konstrukcijske zahteve za fotonapetostne (PV) module, da se zagotovi njihovo varno električno in mehansko delovanje. Podane so specifične teme na področju ocene preprečevanja električnega udara, požarne ogroženosti in osebnih poškodb zaradi mehanskih in okoljskih obremenitev. Ta del standarda IEC 61730 se nanaša na posebne gradbene zahteve. Standard IEC 61730-2 določa zahteve za preskušanje.
Ta skupina mednarodnih standardov določa zahteve IEC glede prizemnih fotonapetostnih modulov, primernih za dolgotrajno uporabo v okoljih na prostem. Ta standard je namenjen za uporabo za vse materiale ploščatih prizemnih modulov, kot so vrste modulov iz kristalnega silicija in tankoplastni moduli.
Fotonapetostni moduli, ki jih zajema ta standard, so omejeni na maksimalno napetost v enosmernem sistemu 1500 V.
Ta mednarodni standard določa osnovne zahteve za različne načine uporabe fotonapetostnih modulov, vendar ne zajema vseh nacionalnih in regionalnih predpisov. Specifične zahteve, npr. za uporabo pri gradnji, na morju in v vozilih, niso zajete.
Ta mednarodni standard se ne ukvarja s posebnimi zahtevami za proizvode, v katerih je fotonapetostni modul združen z opremo za pretvorbo energije, elektroniko za nadzor ali kontrolo, kot so vgrajeni inverterji, pretvorniki ali funkcije za onemogočanje izhoda.
Čeprav se lahko deli tega standarda uporabljajo za ploščate fotonapetostne module z notranje ustvarjeno nizko koncentracijo, ki je manjša od 3-kratne, ta standard ni bil oblikovan posebej za te primere.
Ta mednarodni standard je oblikovan tako, da je usklajen s preskusnimi zaporedji iz skupine standardov IEC 61215, zato se lahko za vrednotenje varnosti in učinkovitosti projektiranja fotonapetostnih modulov uporabi ena sama skupina vzorcev.
Namen tega mednarodnega standarda je določanje zahtev za izdelavo fotonapetostnih modulov v zvezi z varnostjo. Te zahteve so namenjene za zmanjšanje nepravilnega delovanja in nepravilne uporabe fotonapetostnih modulov ali odpovedi njihovih sestavnih delov, kar bi lahko povzročilo požar, električni udar in telesne poškodbe.
Poleg zahtev, ki jih vključuje ta standard, je treba upoštevati dodatne konstrukcijske zahteve, podane v relevantnih standardih ISO, ali nacionalne oziroma lokalne predpise, ki urejajo namestitev in uporabo teh fotonapetostnih modulov na njihovih predvidenih lokacijah.

General Information

Status
Published
Publication Date
26-Apr-2018
Current Stage
6060 - Document made available
Due Date
27-Apr-2018
Completion Date
27-Apr-2018

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SLOVENSKI STANDARD
SIST EN IEC 61730-1:2018
01-junij-2018
1DGRPHãþD
SIST EN 61730-1:2008
SIST EN 61730-1:2008/A1:2012
SIST EN 61730-1:2008/A11:2015
SIST EN 61730-1:2008/A2:2013
Varnostne zahteve fotonapetostnih (PV) modulov - 1. del: Konstrukcijske zahteve

Photovoltaic (PV) module safety qualification - Part 1: Requirements for construction

Ta slovenski standard je istoveten z: EN IEC 61730-1:2018
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
SIST EN IEC 61730-1:2018 en

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

---------------------- Page: 1 ----------------------
SIST EN IEC 61730-1:2018
---------------------- Page: 2 ----------------------
SIST EN IEC 61730-1:2018
EUROPEAN STANDARD EN IEC 61730-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2018
ICS 27.160 Supersedes EN 61730-1:2007
English Version
Photovoltaic (PV) module safety qualification - Part 1:
Requirements for construction
(IEC 61730-1:2016)

Qualification pour la sûreté de fonctionnement des modules Photovoltaik (PV) Module - Sicherheitsqualifikation - Teil 1:

photovoltaïques (PV) - Partie 1: Exigences pour la Anforderungen an den Aufbau
construction (IEC 61730-1:2016)
(IEC 61730-1:2016)

This European Standard was approved by CENELEC on 2016-09-21. 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

© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61730-1:2018 E
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SIST EN IEC 61730-1:2018
EN IEC 61730-1:2018 (E)
European foreword

The text of document 82/1128/FDIS, future edition 2 of IEC 61730-1, prepared by IEC/TC 82 “Solar

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

CENELEC as EN IEC 61730-1:2018.
The following dates are fixed:
• latest date by which the document has to be (dop) 2018-10-27
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2021-04-27
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61730-1:2007.

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.

This document has been prepared under a mandate given to CENELEC by the European Commission

and the European Free Trade Association, and supports essential requirements of EU Directive(s).

For the relationship with EU Directive 2006/42/EC see informative Annex ZZ, which is an integral part

of this document.
Endorsement notice

The text of the International Standard IEC 61730-1:2016 was approved by CENELEC as a European

Standard without any modification.
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SIST EN IEC 61730-1:2018
EN IEC 61730-1:2018 (E)
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
Electric cables for photovoltaic systems EN 50618 2014
IEC 60050 series International Electrotechnical Vocabulary - -
IEC 60112 - Method for the determination of the proof EN 60112 -
and the comparative tracking indices of
solid insulating materials
IEC 60216-1 - Electrical insulating materials - Thermal EN 60216-1 2013
endurance properties - Part 1: Ageing
procedures and evaluation of test results
IEC 60216-2 - Electrical insulating materials - Thermal EN 60216-2 2005
endurance properties - Part 2:
Determination of thermal endurance
properties of electrical insulating materials
- Choice of test criteria
IEC 60216-5 - Electrical insulating materials - Thermal EN 60216-5 2008
endurance properties - Part 5:
Determination of relative thermal
endurance index (RTE) of an insulating
material
IEC 60243-1 2013 Electric strength of insulating materials - EN 60243-1 2013
Test methods - Part 1: Tests at power
frequencies
IEC 60243-2 2013 Electric strength of insulating materials - EN 60243-2 2014
Test methods - Part 2: Additional
requirements for tests using direct voltage
IEC 60269-6 - Low-voltage fuses - Part 6: Supplementary EN 60269-6 2011
requirements for fuse-links for the
protection of solar photovoltaic energy
systems

IEC 60364-7-712 - Electrical installations of buildings - Part 7 HD 60364-7-712 2016

-712: Requirements for special installations
or locations - Solar photovoltaic (PV)
power supply systems
IEC 60417 Data- Graphical symbols for use on equipment. - -
base Index, survey and compilation of the single
sheets.
IEC 60529 - Degrees of protection provided by EN 60529 1991
enclosures (IP Code)
IEC 60664-1 - Insulation coordination for equipment EN 60664-1 2007
within low-voltage systems - Part 1:
Principles, requirements and tests
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SIST EN IEC 61730-1:2018
EN IEC 61730-1:2018 (E)
IEC 60664-3 2003 Insulation coordination for equipment EN 60664-3 2003
within low-voltage systems - Part 3: Use of
coating, potting or moulding for protection
against pollution
IEC 60695-10-2 - Fire hazard testing - Part 10-2: Abnormal EN 60695-10-2 2014
heat - Ball pressure test method
IEC 60695-11-10 - Fire hazard testing - Part 11-10: Test EN 60695-11-10 2013
flames - 50 W horizontal and vertical flame
test methods
IEC 60904-3 - Photovoltaic devices - Part 3: EN 60904-3 2016
Measurement principles for terrestrial
photovoltaic (PV) solar devices with
reference spectral irradiance data

IEC 60950-1 (mod) 2005 Information technology equipment - Safety EN 60950-1 2006

- Part 1: General requirements
- - + A11 2009
- - + A12 2011
- - + AC 2011
IEC 61032 1997 Protection of persons and equipment by EN 61032 1998
enclosures - Probes for verification
IEC 61140 - Protection against electric shock - EN 61140 2016
Common aspects for installation and
equipment
IEC 61215 series Terrestrial photovoltaic (PV) modules EN 61215 series
Design qualification and type approval
IEC 61558-1 2005 Safety of power transformers, power EN 61558-1 2005
supplies, reactors and similar products -
Part 1: General requirements and tests
- - + corrigendum Aug. 2006
IEC 61701 - Salt mist corrosion testing of photovoltaic EN 61701 2012
(PV) modules
IEC 61730-2 - Photovoltaic (PV) module safety EN 61730-2 2018
qualification - Part 2: Requirements for
testing
IEC 62548 2016 Photovoltaic (PV) arrays - Design - -
requirements
IEC 62716 - Photovoltaic (PV) modules - Ammonia EN 62716 2013
corrosion testing
IEC 62788-1-2 - Measurement procedures for materials EN 62788-1-2 2016
used in photovoltaic modules - Part 1-2:
Encapsulants - Measurement of volume
resistivity of photovoltaic encapsulation
and backsheet materials
IEC 62790 - Junction boxes for photovoltaic modules - EN 62790 2015
Safety requirements and tests
IEC 62852 - Connectors for DC-application in EN 62852 2015
photovoltaic systems - Safety requirements
and tests
ISO 1456 - Metallic and other inorganic coatings - EN ISO 1456 2009
Electrodeposited coatings of nickel, nickel
plus chromium, copper plus nickel and of
copper plus nickel plus chromium
ISO 1461 - Hot dip galvanized coatings on fabricated EN ISO 1461 2009
iron and steel articles_- Specifications and
test methods
ISO 2081 - Metallic and other inorganic coatings_- EN ISO 2081 2018
Electroplated coatings of zinc with
supplementary treatments on iron or steel
ISO 2093 1986 Electroplated coatings of tin; Specification - -
and test methods
---------------------- Page: 6 ----------------------
SIST EN IEC 61730-1:2018
EN IEC 61730-1:2018 (E)
IEC/TR 60664-2-1 2011 Insulation coordination for equipment - -
within low-voltage systems - Part 2-1:
Application guide - Explanation of the
application of the IEC 60664 series,
dimensioning examples and dielectric
testing
IEC/TS 61836 - Solar photovoltaic energy systems - CLC/TS 61836 2009
Terms, definitions and symbols
IEC/TS 62915 2018 Photovoltaic (PV) Modules - Retesting for - -
type approval, design and safety
qualification
UL 746B 2013 Standard for Polymeric Materials - Long - -
Term Property Evaluations
---------------------- Page: 7 ----------------------
SIST EN IEC 61730-1:2018
EN IEC 61730-1:2018 (E)
Annex ZZ
(informative)
Relationship between this European standard and the safety
objectives of Directive 2014/35/EU [2014 OJ L96] aimed to be
covered

This European Standard has been prepared under a Commission’s standardization request relating to

harmonized standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means

of conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the

Council of 26 February 2014 on the harmonization of the laws of the Member States relating to the

making available on the market of electrical equipment designed for use within certain voltage limits

[2014 OJ L96].

Once this standard is cited in the Official Journal of the European Union under that Directive,

compliance with the normative clauses of this standard given in Table ZZ.1 confers, within the limits of

the scope of this standard, a presumption of conformity with the corresponding safety objectives of

that Directive, and associated EFTA regulations.

Table ZZ.1 – Correspondence between this European standard and Annex I of Directive

2014/35/EU [2014 OJ L96]
Clause(s) / sub-
Safety objectives of Directive
clause(s)
Remarks / Notes
2014/35/EU
of this EN
1. General conditions
1 (a) the essential
characteristics, the recognition
and observance of which will
ensure that electrical equipment
will be used safely and in
EN 61730-1, 5.2
applications for which it was
made, shall be marked on the
electrical equipment, or, if this is
not possible, on an
accompanying document;
1 (b) the electrical equipment,
together with its component
parts, shall be made in such a
EN 61730-1, 5.2
way as to ensure that it can be
safely and properly assembled
and connected;
1(c) the electrical equipment
shall be so designed and
manufactured as to ensure that
EN 61730-1, 5.2
protection against the hazards
refer to 2a) to 2d)
set out in points 2 and 3 is
and 3a) to 3c) of
assured, providing that the
this table
equipment is used in
cl. 5.4 (intended
applications for which it was
use)
made and is adequately
maintained.
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SIST EN IEC 61730-1:2018
EN IEC 61730-1:2018 (E)
Clause(s) / sub-
Safety objectives of Directive
clause(s)
Remarks / Notes
2014/35/EU
of this EN
2. Protection against hazards arising from the electrical equipment

Measures of a technical nature shall be laid down in accordance with point 1, in order to ensure that:

2 (a) persons and domestic EN 61730-1, 5.2.2,
animals are adequately 5.3.4, 5.3.5, 5.5.4,
protected against the danger of 5.6.4.2
physical injury or other harm EN 61730-2, 4.4
which might be caused by direct
EN 61730-2, 10.9,
or indirect contact;
(MST 11)
EN 61730-2, 10.11,
(MST 13)
EN 61730-2, 10.12,
(MST 14)
EN 61730-2, 10.13,
(MST 16)
EN 61730-2, 10.14,
(MST 17)
2 (b) temperatures, arcs or EN 61730-1, 5.1,
radiation which would cause a 5.2.2.1, 5.2.3, 5.3,
danger, are not produced; 5.5 and Annex B
(B6)
EN 61730-2, 4.2
EN 61730-2, 10.15,
(MST 21)
2 (c) persons, domestic animals EN 61730-1, 5.2.3
and property are adequately
EN 61730-2, 10.7,
protected against non-electrical
(MST 06)
dangers caused by the electrical
EN 61730-2, 10.10,
equipment which are revealed
(MST 12)
by experience;
EN 61730-2, 10.21,
(MST 32)
EN 61730-2, 10.23,
(MST 34)
2 (d) the insulation is suitable for EN 61730-1,
foreseeable conditions. 5.2.2.1 k) and
MST 26
EN 61730-1, 5.2.2,
5.2.2.1, 5.3.4,
5.3.5, 5.5.4, 5.6
and 5.6.4.2
EN 61730-2, 4.4
EN 61730-2, 10.13,
(MST 16)
EN 61730-2, 10.14,
(MST 17)
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SIST EN IEC 61730-1:2018
EN IEC 61730-1:2018 (E)
Clause(s) / sub-
Safety objectives of Directive
clause(s)
Remarks / Notes
2014/35/EU
of this EN

3. Protection against hazards which may be caused by external influences on the electrical equipment

Technical measures shall be laid down in accordance with point 1, in order to ensure that the electrical

equipment:
3 (a) meets the expected EN 61730-1, 5.1,
mechanical requirements in 5.2.3, 5.3, 5.4 and
such a way that persons, 5.5
domestic animals and property
EN 61730-2, 4.2
are not endangered;
EN 61730-2, 10.7,
(MST 06)
EN 61730-2, 10.21,
(MST 32)
EN 61730-2, 10.23,
(MST 34)

3 (b) is resistant to non- EN 61730-2, 4.5 No remote access to modules to influence

mechanical influences in EN 61730-2, 10.15, function.
expected environmental (MST 21)
conditions, in such a way that There are no mandatory requirements for fire
EN 61730-2, 10.17,
persons, domestic animals and tests, spread of flame and burning-brand tests
(MST 23)
property are not endangered; for PV modules in this standard.
3 (c) does not endanger EN 61730-1, 5.2
persons, domestic animals and
EN 61730-1,
property in foreseeable
5.2.2.1 k) and
conditions of overload.
MST 26

WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European

standard is maintained in the list published in the Official Journal of the European Union. Users of this

standard should consult frequently the latest list published in the Official Journal of the European

Union.

WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of

this standard.
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SIST EN IEC 61730-1:2018
IEC 61730-1
Edition 2.0 2016-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Photovoltaic (PV) module safety qualification –
Part 1: Requirements for construction
Qualification pour la sûreté de fonctionnement des modules photovoltaïques
(PV) –
Partie 1: Exigences pour la construction
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.160 ISBN 978-2-8322-3574-4

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: 11 ----------------------
SIST EN IEC 61730-1:2018
– 2 – IEC 61730-1:2016 © IEC 2016
CONTENTS

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

1 Scope ............................................................................................................................ 7

2 Normative references .................................................................................................... 7

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

3.1 General terms and definitions .............................................................................. 10

3.2 Components........................................................................................................ 11

3.3 Installation and application .................................................................................. 12

3.4 Insulation system ................................................................................................ 12

3.5 Ratings ............................................................................................................... 14

4 Classification, applications and intended use ................................................................ 16

4.1 General ............................................................................................................... 16

4.2 PV modules of class 0 ......................................................................................... 16

4.2.1 General ....................................................................................................... 16

4.2.2 Insulation ..................................................................................................... 16

4.2.3 Application ................................................................................................... 16

4.3 PV modules of class II ......................................................................................... 17

4.3.1 General ....................................................................................................... 17

4.3.2 Insulation ..................................................................................................... 17

4.3.3 Application ................................................................................................... 17

4.4 PV modules of class III ........................................................................................ 17

4.4.1 General ....................................................................................................... 17

4.4.2 Insulation ..................................................................................................... 17

4.4.3 Application ................................................................................................... 18

4.5 Intended use ....................................................................................................... 18

5 Requirements for design and construction .................................................................... 18

5.1 General ............................................................................................................... 18

5.2 Marking and documentation ................................................................................. 19

5.2.1 General ....................................................................................................... 19

5.2.2 Marking ....................................................................................................... 19

5.2.3 Documentation ............................................................................................. 21

5.3 Electrical components and insulation ................................................................... 23

5.3.1 General ....................................................................................................... 23

5.3.2 Internal wiring .............................................................................................. 23

5.3.3 External wiring and cables............................................................................ 23

5.3.4 Connectors .................................................................................................. 23

5.3.5 Junction boxes for PV modules .................................................................... 23

5.3.6 Frontsheets and backsheets ......................................................................... 24

5.3.7 Insulation barriers ........................................................................................ 24

5.3.8 Electrical connections .................................................................................. 24

5.3.9 Encapsulants ............................................................................................... 25

5.3.10 Bypass diodes ............................................................................................. 25

5.4 Mechanical and electromechanical connections ................................................... 25

5.4.1 General ....................................................................................................... 25

5.4.2 Screw connections ....................................................................................... 26

5.4.3 Rivets .......................................................................................................... 27

5.4.4 Thread-cutting screws .................................................................................. 27

5.4.5 Form/press/tight fit ....................................................................................... 27

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SIST EN IEC 61730-1:2018
IEC 61730-1:2016 © IEC 2016 – 3 –

5.4.6 Connections by adhesives ............................................................................ 27

5.4.7 Other connections ........................................................................................ 28

5.5 Materials ............................................................................................................. 28

5.5.1 General ....................................................................................................... 28

5.5.2 Polymeric materials ...................................................................................... 28

5.5.3 Metallic materials ......................................................................................... 31

5.5.4 Adhesives .................................................................................................... 31

5.6 Protection against electric shock ......................................................................... 31

5.6.1 General ....................................................................................................... 31

5.6.2 Protection against accessibility to hazardous live parts ................................. 32

5.6.3 Insulation coordination ................................................................................. 33

5.6.4 Distance through insulation (dti) ................................................................... 34

Annex A (informative) Symbol "Do not disconnect under load" ............................................ 40

Annex B (normative) Insulation coordination ....................................................................... 41

B.1 General ............................................................................................................... 41

B.2 Influencing factors ............................................................................................... 41

B.2.1 General ....................................................................................................... 41

B.2.2 Overvoltage category (4.3.3.2 of IEC 60664-1:2007) and rated impulse

voltage ........................................................................................................ 41

B.3 Clearances ......................................................................................................... 43

B.4 Creepage distances ............................................................................................ 45

B.4.1 General ....................................................................................................... 45

B.4.2 Voltage ........................................................................................................ 45

B.4.3 Orientation and location of a creepage distance ............................................ 45

B.4.4 Shape of insulating surface .......................................................................... 45

B.4.5 Time under voltage stress ............................................................................ 45

B.5 Cemented joints .................................................................................................. 46

B.6 Enclosed parts .................................................................................................... 46

B.7 Distance through insulation ................................................................................. 46

B.7.1 Cemented joints ........................................................................................... 46

B.7.2 Insulation through thin layers ....................................................................... 46

B.8 Methods of measuring clearances (cl) and creepage distances (cr) ...................... 47

B.9 Figures examples ................................................................................................ 47

Figure 1 – IEC 60417-5017 ................................................................................................. 21

Figure 2 – IEC 60417-5021 ................................................................................................. 21

Figure 3 – IEC 60417-5018 ................................................................................................. 21

Figure 4 – Examples for individual layer assessment for relied upon insulation ..................... 37

Figure A.1 – Symbol "DO NOT DISCONNECT UNDER LOAD" ............................................. 40

Figure A.2 – Symbol "DO NOT DISCONNECT UNDER LOAD” (IEC 60417-6070) ................. 40

Figure B.1 – Examples (1 to 11) of methods of measuring clearances and creepage

distances ............................................................................................................................ 50

Figure B.2 – Example for insulation coordination at glass/foil PV modules – No

cemented joint configuration ............................................................................................... 50

Figure B.3 – Example for creepage distance at glass/glass modules with edge

insulation – No cemented joint configuration ........................................................................ 51

Figure B.4 – Example for a glass/glass module with cemented joints .................................... 51

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SIST EN IEC 61730-1:2018
– 4 – IEC 61730-1:2016 © IEC 2016

Table 1 – Correlation between classes for protection against electric shock and former

terms for application classes ............................................................................................... 16

Table 2 – Required type of insulation as defined in IEC 61140 ............................................. 33

Table 3 – Distances through insulation, creepage distances (cr) and clearances (cl)

for Class II PV modules ...................................................................................................... 38

Table 4 – Distances through insulation, creepage distances (cr) and clearances (cl) for

Class 0 and class III PV modules ........................................................................................ 39

Table B.1 – Rated impulse voltage ...................................................................................... 42

Table B.2 – Minimum clearances ......................................................................................... 44

Table B.3 – Multiplication factors for clearances of equipment rated for operation at

altitudes up to 7 000 m........................................................................................................ 44

Table B.4 – Dimensions of X ............................................................................................... 47

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SIST EN IEC 61730-1:2018
IEC 61730-1:2016 © IEC 2016 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PHOTOVOLTAIC (PV) MODULE SAFETY QUALIFICATION –
Part 1: Requirements for construction
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (I
...

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