Low-voltage surge protective devices - Part 31: Requirements and test methods for SPDs for photovoltaic installations

IEC 61643-31:2018 is applicable to Surge Protective Devices (SPDs), intended for surge protection against indirect and direct effects of lightning or other transient overvoltages. These devices are designed to be connected to the DC side of photovoltaic installations rated up to 1 500 V DC. These devices contain at least one non-linear component and are intended to limit surge voltages and divert surge currents. Performance characteristics, safety requirements, standard methods for testing and ratings are established. SPDs complying with this standard are exclusively dedicated to be installed on the DC side of photovoltaic generators and the DC side of inverters. SPDs for PV systems with energy storage (e.g. batteries, capacitor banks) are not covered. SPDs with separate input and output terminals that contain specific series impedance between these terminal(s) (so called two-port SPDs according to IEC 61643-11:2011) are not covered. SPDs compliant with this standard are designed to be permanently connected where connection and disconnection of fixed SPDs can only be done using a tool. This standard does not apply to portable SPDs Keywords: photovoltaic installations, lightning or other transient overvoltages

Überspannungsschutzgeräte für Niederspannung – Teil 31: Anforderungen und Prüfungen für Überspannungsschutzgeräte in Photovoltaik-Installationen

Parafoudres basse tension - Partie 31: Parafoudres pour usage spécifique y compris en courant continu - Exigences et méthodes d'essai des parafoudres pour installations photovoltaïques

IEC 61643-31:2018 est applicable aux parafoudres (SPD) de protection contre les effets indirects et directs de la foudre ou contre les surtensions transitoires. Ces dispositifs sont conçus pour être connectés en courant continu aux installations photovoltaïques de tension continue assignée jusqu’à 1 500 V. Ces dispositifs comportent au moins un composant non linéaire et sont utilisés pour limiter les surtensions et écouler les courants de foudre. Les caractéristiques de fonctionnement, les exigences de sécurité, les méthodes normalisées d'essai ainsi que les valeurs assignées applicables sont définies. Les parafoudres conformes à la présente norme sont exclusivement destinés à être installés en courant continu sur les générateurs photovoltaïques et en courant continu sur les onduleurs. Les parafoudres pour systèmes photovoltaïques (systèmes PV) avec stockage d’énergie (par exemple, les batteries d’accumulateurs, les batteries de condensateurs) ne sont pas couverts. Les parafoudres équipés de bornes d’entrée et de sortie séparées (désignés comme des parafoudres à deux ports selon l’IEC 61643-11:2011) avec une impédance série spécifique entre ces bornes ne sont pas couverts. Les parafoudres conformes à la présente norme sont conçus pour être raccordés de façon permanente lorsque la connexion et la déconnexion des parafoudres installés à poste fixe ne peuvent s’effectuer que par l’intermédiaire d’un outil. La présente norme ne s’applique pas aux parafoudres portables. Mots clés: installations photovoltaïques , foudre ou contre les surtensions transitoires

Nizkonapetostne naprave za zaščito pred prenapetostnimi udari - 31. del: Naprave za zaščito pred prenapetostnimi udari za posebno uporabo vključno z enosmernim tokom - Zahteve in preskusne metode za SPD za fotonapetostne inštalacije

Ta del standarda IEC 61643 se uporablja za naprave za zaščito pred prenapetostnimi udari (SPD) v primeru posrednih in neposrednih učinkov strele ali drugih prehodnih prenapetosti.
Te naprave so zasnovane za priklop na fotonapetostne inštalacije z enosmernim tokom do 1500 V.
Te naprave vsebujejo vsaj eno nelinearno komponento ter so namenjene omejitvi sunkov napetosti in preusmeritvi toka. Določene so značilnosti delovanja, varnostne zahteve, standardne metode za preskušanje in vrednosti.
Naprave za zaščito pred prenapetostnimi udari, ki so v skladu s tem standardom, so namenjene izključno za namestitev na enosmerno stran fotonapetostnih generatorjev in pretvornikov.
Naprave za zaščito pred prenapetostnimi udari za fotonapetostne sisteme s shranjevanjem energije (npr. baterije, kondenzatorske baterije) niso zajete.
Naprav za zaščito pred prenapetostnimi udari z ločenimi vhodnimi in izhodnimi terminali, ki vsebujejo posebno vzdolžno impedanco med temi terminali (v skladu s standardom IEC 61643-11:2011 t. i. naprava za zaščito pred prenapetostnimi udari z dvoje vrati), zahteve tega standarda ne zajemajo.
Naprave za zaščito pred prenapetostnimi udari, skladne s tem standardom, so zasnovane tako, da so trajno povezane, če je omenjene fiksne naprave mogoče povezati in ločiti samo z orodjem. Ta standard se ne uporablja za prenosne naprave za zaščito pred prenapetostnimi udari.
OPOMBA 1: Na splošno naprave za zaščito pred prenapetostnimi udari za fotonapetostne aplikacije ne vsebujejo specifične vzdolžne impedance med vhodnimi/izhodnimi terminali zaradi zadržkov v zvezi z električno učinkovitostjo.
OPOMBA 2: Kadar koli se v tem dokumentu sklicuje na električni ali napajalni sistem, se to nanaša na enosmerno stran fotonapetostne inštalacije.

General Information

Status
Published
Publication Date
02-May-2019
Current Stage
6060 - Document made available
Due Date
03-May-2019
Completion Date
03-May-2019

RELATIONS

Buy Standard

Standard
EN 61643-31:2019 - BARVE na PDF-str 63,64,65,66
English language
64 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 61643-31:2019
01-september-2019
Nadomešča:
SIST EN 50539-11:2013
SIST EN 50539-11:2013/A1:2014
Nizkonapetostne naprave za zaščito pred prenapetostnimi udari - 31. del: Naprave
za zaščito pred prenapetostnimi udari za posebno uporabo vključno z enosmernim
tokom - Zahteve in preskusne metode za SPD za fotonapetostne inštalacije

Low-voltage surge protective devices - Part 31: Surge protective devices for specific use

including d.c. - Requirements and test methods for SPDs for photovoltaic installations

Ta slovenski standard je istoveten z: EN 61643-31:2019
ICS:
27.160 Sončna energija Solar energy engineering
29.120.50 Varovalke in druga Fuses and other overcurrent
medtokovna zaščita protection devices
SIST EN 61643-31:2019 en

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

---------------------- Page: 1 ----------------------
SIST EN 61643-31:2019
---------------------- Page: 2 ----------------------
SIST EN 61643-31:2019
EUROPEAN STANDARD EN 61643-31
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2019
ICS 29.240; 29.240.10 Supersedes EN 50539-11:2013
English Version
Low-voltage surge protective devices - Part 31: Requirements
and test methods for SPDs for photovoltaic installations
(IEC 61643-31:2018 , modified)

Parafoudres basse tension - Partie 31: Parafoudres pour Überspannungsschutzgeräte für Niederspannung - Teil 31:

usage spécifique y compris en courant continu - Exigences Anforderungen und Prüfungen für

et méthodes d'essai des parafoudres pour installations Überspannungsschutzgeräte in Photovoltaik-Installationen

photovoltaïques (IEC 61643-31:2018 , modifiziert)
(IEC 61643-31:2018 , modifiée)

This European Standard was approved by CENELEC on 2018-02-14. 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 61643-31:2019 E
---------------------- Page: 3 ----------------------
SIST EN 61643-31:2019
EN 61643-31:2019 (E)
European foreword

The text of document 37A/306/FDIS, future edition 1 of IEC 61643-31, prepared by SC 37A: “Low-voltage

surge protective devices”, of IEC/TC 37: “Surge arresters” was submitted to the IEC-CENELEC parallel vote

and approved by CENELEC as EN 61643-31:2019.

A draft amendment, which covers common modifications to IEC 61643-31, was prepared by CLC/TC 37A

"Low-voltage surge protective devices" and approved by CENELEC.
The following dates are fixed:
• latest date by which this document (dop) 2019-11-03
has to be implemented at national
level by publication of an identical
national standard or by
endorsement
• latest date by which the national (dow) 2022-05-03
standards conflicting with this
document have to be withdrawn
EN 61643-31:2019 supersedes EN 50539-11:2013.

Clauses, subclauses, notes, tables, figures and annexes which are additional to those in IEC 61643-31:2019

are prefixed “Z”.

EN 61643-31:2019 includes the following significant technical changes with respect to EN 50539-11:2013: It

includes also guidance for verification of conformity for products already tested according

EN 50539-11:2013.

The main changes with respect of EN 50539-11:2013 are the complete restructuring and improvement of the

test procedures and test sequences.

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(s) see informative Annex ZZ, which is an integral part of this

document.
Endorsement notice

The text of the International Standard IEC 61643:2018 was approved by CENELEC as a European Standard

with agreed common modifications.
---------------------- Page: 4 ----------------------
SIST EN 61643-31:2019
EN 61643-31:2019 (E)
COMMON MODIFICATIONS
Modify as follows:
Through the Replace all IEC 61643 references by EN 61643
complete
document:
Replace all IEC references by EN when relevant standard is listed in either the
Normative reference or in the Bibliography sections.
Foreword Add to the Foreword the following:

This standard covers the principle elements and objectives for electrical equipment

designed for use within certain voltage limits (LVD - 2014/35/EU) and for
electromagnetic compatibility (EMCD - 2014/30/EU).
Introduction Delete the last sentence in the Introduction.
Scope Modify the 5 paragraph to read:

SPDs with separate input and output terminal(s) that contain specific series impedance

between these terminal(s) (so called two-port SPDs according to EN 61643-11) are not

covered. As test class III in EN 61643-11 was primarily developed to cover two-port

SPDs, SPDs tested according to this test class are not intended to be used in PV-

systems.
3.1.19 Add the following note:

NOTE EN 62475 provides the current impulse definitions of front time, time to half values and waveshape.

5.3 Replace 5.3 by the following:
Types 1 and 2 SPDs- Class I and II tests
Information required for class I and class II tests is given in Table Z1.
Table Z1 – Tests of types 1 and 2 SPDs
Type of SPD Tests Required information
Type 1 Class I Iimp
Type 2 Class II In
6.5 Add new requirement:
6.5.4 Vibration and shock

Information on vibration and shock tests for transportation and special applications can

be found in Annex ZB of EN 61643-11.
---------------------- Page: 5 ----------------------
SIST EN 61643-31:2019
EN 61643-31:2019 (E)
7.4.4.2.2 Replace:

in less than 60 s when PV4 with ISCPV or DC3 with 2,7 times ISCPV is applied. During the

tests when DC with 2,7 times I is applied, the fuse for detection shall not operate;

3 SCPV

in less than 5 min when DC3 with a prospective short-circuit current of equal to ISCPV is

applied.
by:
in less than 20 s when PV with I or DC with 2,7 times I is applied. During the
4 SCPV 3 SCPV

tests when DC3 with 2,7 times ISCPV is applied, the fuse for detection shall not operate;

in less than 1 min when DC with a prospective short-circuit current of equal to I is

3 SCPV
applied.
7.4.4.3.2 Replace:

In less than 60 s during the test when PV4 with a prospective short-circuit current of

I is applied;
SCPV
by:

In less than 20 s during the test when PV with a prospective short-circuit current of

ISCPV is applied;
Annex ZA Add Annex ZA (See annexes)
Annex ZB Add Annex ZB (See annexes)
Annex ZZ Add Annex ZZ (See annexes)
Bibliography Modify Bibliography (See Annexes)
---------------------- Page: 6 ----------------------
SIST EN 61643-31:2019
EN 61643-31:2019 (E)
Add the following annexes:
Annex ZA
(informative)
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 60060-1 2010 High-voltage test techniques - Part 1: General EN 60060-1 2010
definitions and test requirements
IEC 60112 2003 Method for the determination of the proof and EN 60112 2003
the comparative tracking indices of solid
insulating materials
IEC 60529 1989 Degrees of protection provided by enclosures EN 60529 1991
(IP Code)
IEC 60664-1 2007 Insulation coordination for equipment within EN 60664-1 2007
low-voltage systems - Part 1: Principles,
requirements and tests
IEC 61000 series Electromagnetic compatibility (EMC) EN 61000 series

IEC 61000-6-1 2005 Electromagnetic compatibility (EMC) – Part 6-1: EN 61000-6-1 2007

Generic standards – Immunity for residential,
commercial and light-industrial environments

IEC 61000-6-3 2006 Electromagnetic compatibility (EMC) – Part 6-3: EN 61000-6-3 2007

Generic standards – Emission standard for
residential, commercial and light-industrial
environments

IEC 60068-2-78 2012 Environmental testing - Part 2-78: Tests - Test EN 60068-2-78 2013

Cab: Damp heat, steady state
IEC 61180-1 1992 High-voltage test techniques for low-voltage EN 61180-1 1994
equipment - Part 1: Definitions, test and
procedure requirements

IEC 60364-5-51 - Electrical installation of buildings – Part 5-51: HD 60364-5-51 2009

Selection and erection of electrical equipment;
Common rules
---------------------- Page: 7 ----------------------
SIST EN 61643-31:2019
EN 61643-31:2019 (E)

IEC 61643-11 2011 Low-voltage surge protective devices –Part 11: EN 61643-11 2012

Surge protective devices connected to low-
+ A11 2018
voltage power systems –Requirements and test
methods
IEC 62475 - High-current test techniques - Definitions and EN 62475 2010
requirements for test currents and measuring
systems
---------------------- Page: 8 ----------------------
SIST EN 61643-31:2019
EN 61643-31:2019 (E)
Annex ZB
(normative)
Reduced test procedure

This annex addresses the number of samples to be submitted and test sequence to be applied for

verification of conformity for products already tested according EN 50539-11:2013.

The simplified test procedure according to Table ZB.1 may then be applied for verification of

conformity.

For new products complete type tests and samples according to Clause 7 are required.

Table ZB.1 - Simplified test procedure for SPDs already complying with EN 50539-11

Test
Test description Subclause Testing required
sequence
1 Identification and marking 6.1.1 / 6.1.2 / 7.2 Yes
Mounting 6.3.1 No
Terminals and connections 6.3.2 / 6.3.3 No
Testing for protection against direct contact 6.2.1 Yes
Environment, IP code 6.4 No
Residual current 6.2.2 / 7.4.1 No
Continuous current 6.2.8 / 7.4.6 Yes
Operating duty test 6.2.4 / 7.4.2 No
Operating duty test for test classes I and II 7.2.3.2 / 7.4.2.3 / No
7.4.2.4
Additional duty test for test class I 7.4.2.5 No
Thermal stability 6.2.5.3 / 7.4.3.2 Yes
Air clearances and creepage distances 6.6.3.4 / 7.5.1 No
Ball pressure test 6.4 No
Resistance to abnormal heat and fire 6.4 No
Tracking resistance 6.4 No
2 Voltage Protection level 6.2.3 No
3 Insulation resistance 6.2.6 No
Dielectric withstand 6.2.7 / 7.4.5 No
See below - only if applicable
Mechanical strength 6.3.5 No
Temperature withstand 6.2.5 / 7.4.3.1 No
3b See below - only if applicable
4 Heat resistance 6.4 No
c d
5 SPD failure mode test 6.2.5.4 / 7.4.4 Yes
6 Live test under damp heat 7.6.1 No
7 Total discharge current test for multipole SPDs 6.2.9 No
Additional tests for one-port-SPDs with separate input / output terminals
3b Rated load current 6.5.1 / 7.7.1.1 No
Additional tests for outdoor use SPDs
Environmental tests for outdoor SPDs 6.5.2 / 7.7.2 No
Additional tests for SPDs with separate isolated circuits
3a Isolation between separate circuits 6.5.3 / 7.4.5 No
This is related to 6.1.1 only.
This is related to SPDs having a UCPV equal to or below 120 V only.
For this test sequence more than one set of samples may be needed.

This is related to combination SPDs only (no additional test for other types of SPDs).

---------------------- Page: 9 ----------------------
SIST EN 61643-31:2019
EN 61643-31:2019 (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 standardisation request relating to

harmonised 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 harmonisation 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-clause(s)
Safety objectives of Directive
Remarks / Notes
2014/35/EU
of this EN
(1)(a) Clauses 6.1, 6.3.1
Clause 7.3
(1)(b) Clause 6.1
(1)(c) Clauses 1, 2, 3, 4, 5 and refer to 2a)
to 2d) below and 3a) to 3c) below
(2)(a) Clause 5.5, 6.2.1, 6.2.2
Clause 7.1, 7.2, 7.4.1, 7.2.1 table 5
and table 4 pass criteria c, e, h, I, j,
and clause 8
(2)(b) Clauses 6.5.1, 6.2.5.3, 6.2.5, 6.2.4,
6.5.1
Clauses 7.1, 7.2, 7.4.2, 7.4.3.2,
7.4.3, 7.4.4, 7.7.1, 8
(2) (c) Clauses 6.4.3.1, 6.4.3.2
Clause 8
(2)(d) Clauses 6.3.4, 6.2.6, 6.2.7, 6.5.2
Clauses 7.1, 7.2, 7.5.1, 7.5.2, 7.4.5,
7.7.2, 8
(3)(a) Clause 6.3.5
Clause 7.1, 7.2, 8
---------------------- Page: 10 ----------------------
SIST EN 61643-31:2019
EN 61643-31:2019 (E)
(3)(b) Clauses 6.4.2, 6.4.1, 6.5.2
Clauses 7.1, 7.2, 7.6.1, 7.6.2, 7.7.2,
Clause 8.5.2, 8.5.3, 8.3.5.1
(3)(c) Clauses 6.2.5
Clauses 7.1, 7.2, 7.4.3, 7.4.4, 8

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.
---------------------- Page: 11 ----------------------
SIST EN 61643-31:2019
EN 61643-31:2019 (E)
Bibliography
For the following references,
Replace:
IEC 60950:1991, Information technology equipment-Safety
by:

EN 60950-1, Information technology equipment – Safety – Part 1: General requirements (IEC 60950-1)

Replace:

ISO 4892-2, Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps

ISO 4892-1, Plastics - Methods of exposure to laboratory light sources - Part 1: General guidance

ISO 4628-3, Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size

of defects, and of intensity of uniform changes in appearance - Part 3: Assessment of degree of rusting

by:

EN ISO 4892-2, Plastics – Methods of exposure to laboratory light sources – Part 2: Xenon-arc lamps

(ISO 4892-2)

EN ISO 4892-1:2000, Plastics – Methods of exposure to laboratory light sources – Part 1: General guidance

(ISO 4892-1)

EN ISO 4628-3, Paints and varnishes – Evaluation of degradation of coatings – Designation of quantity and

size of defects, and of intensity of uniform changes in appearance – Part 3: Assessment of degree of rusting

(ISO 4628-3)
Add the following references:

EN 50521:2008, Connectors for photovoltaic systems - Safety requirements and tests

EN 60068-2-11:1999, Environmental testing – Part 2: Tests – Test Ka: Salt mist (IEC 60068-2-11:1981)

EN 60068-2-14:2009, Environmental testing – Part 2-14: Tests - Test N: Change of temperature

(IEC 60068-2-14:2009)

EN 60068-2-30:2005, Environmental testing – Part 2-30: Tests – Test Db: Damp heat, cyclic (12 h + 12 h

cycle) (IEC 60068-2-30:2005)

EN 60099-4:2004, Surge arresters – Part 4: Metal-oxide surge arresters without gaps for a.c. systems

(IEC 60099-4:2004, mod.)

EN 60112:2003, Method for the determination of the proof and the comparative tracking indices of solid

insulating materials (IEC 60112:2003)
EN 60228: 2005, Conductors of insulated cables (IEC 60228: 2004)

EN 60947-1:2007, Low voltage switchgear and controlgear – Part 1: General rules (IEC 60947-1:2007)

---------------------- Page: 12 ----------------------
SIST EN 61643-31:2019
EN 61643-31:2019 (E)

EN 60947-5-1:2004, Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices and

switching elements – Electromechanical control circuit devices (IEC 60947-5-1:2003)

EN 60999-1:2000, Connecting devices – Electrical copper conductors – Safety requirements for screw-type

and screwless-type clamping units – Part 1: General requirements and particular requirements for clamping

units for conductors from 0,2 mm² up to 35 mm² (included) (IEC 60999-1:1999)

EN 60695-2-11:2001 , Fire hazard testing – Part 2-11: Glowing/hot wire based test methods – Glow-wire

flammability test method for end-product (IEC 60695-2-11:2000)
EN 62305 (all parts), Protection against lightning (IEC 62305 (all parts))

HD 21 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V

(IEC 60227 (all parts), mod.)

HD 60364-4-443:2001, Electrical installations of buildings – Part 4-44: Protection for safety – Protection

against voltage disturbances and electromagnetic disturbances – Clause 443: Protection against

overvoltages of atmospheric origin or due to switching (IEC 60364-4-44:2001/A1:2003, mod.)

HD 60364-5-51:2009, Electrical installations of buildings – Part 5-51: Selection and erection of electrical

equipment - Common rules (IEC 60364-5-51:2005, mod.)

HD 60364-5-534:2008, Low-voltage electrical installations – Part 5-53: Selection and erection of electrical

equipment – Isolation, switching and control – Clause 534: Devices for protection against overvoltages

(IEC 60364-5-53:2001/A1:2002 (CLAUSE 534), mod.)

IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including 450/750 V

UTE C 61-740-51, Juin 2009, Parafoudres basse tension – Partie -51: Parafoudres connectés aux

installations de générateurs photovoltaïques – Exigences et essays

EN 61643-32:2016, Low-voltage surge protective devices - Surge protective devices for specific use

including d.c.- Part 32: Selection and application principles – SPDs connected to photovoltaic installations

———————
Superseded by EN 60695-2-11:2014 (IEC 60695-2-11:2014).
---------------------- Page: 13 ----------------------
SIST EN 61643-31:2019
---------------------- Page: 14 ----------------------
SIST EN 61643-31:2019
IEC 61643-31
Edition 1.0 2018-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Low-voltage surge protective devices –
Part 31: Requirements and test methods for SPDs for photovoltaic installations
Parafoudres basse tension –
Partie 31: Parafoudres pour usage spécifique y compris en courant continu –
Exigences et méthodes d'essai des parafoudres pour installations
photovoltaïques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.240.01; 29.240.10 ISBN 978-2-8322-5211-6

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: 15 ----------------------
SIST EN 61643-31:2019
– 2 – IEC 61643-31:2018 © IEC 2018
CONTENTS

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

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

1 Scope .............................................................................................................................. 8

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

3 Terms, definitions, acronyms and symbols ....................................................................... 9

3.1 Terms and definitions .............................................................................................. 9

3.2 Acronyms / Symbols ............................................................................................. 16

4 Service conditions ......................................................................................................... 17

4.1 Voltage ................................................................................................................. 17

4.2 Air pressure and altitude ....................................................................................... 17

4.3 Temperatures ....................................................................................................... 17

4.4 Humidity ............................................................................................................... 18

5 Classification ................................................................................................................. 18

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

5.2 SPD design ........................................................................................................... 18

5.3 Class I, II and III tests ........................................................................................... 18

5.4 Location ................................................................................................................ 18

5.4.1 Indoor ............................................................................................................ 18

5.4.2 Outdoor ......................................................................................................... 18

5.5 Accessibility .......................................................................................................... 18

5.5.1 Accessible ..................................................................................................... 18

5.5.2 Inaccessible .................................................................................................. 18

5.6 Disconnectors (including overcurrent protection) ................................................... 18

5.7 Degree of protection provided by enclosures according to IP-code of

IEC 60529 ............................................................................................................. 19

5.8 Temperature and humidity range ........................................................................... 19

5.9 Multipole SPD ....................................................................................................... 19

5.10 SPD failure mode .................................................................................................. 19

5.11 PV earthing system ............................................................................................... 19

6 Requirements ................................................................................................................ 19

6.1 General requirements ........................................................................................... 19

6.1.1 Identification .................................................................................................. 19

6.1.2 Marking ......................................................................................................... 21

6.2 Electrical requirements ......................................................................................... 21

6.2.1 Protection against direct contact .................................................................... 21

6.2.2 Residual current I ..................................................................................... 21

6.2.3 Voltage protection level U ............................................................................ 21

6.2.4 Operating duty ............................................................................................... 21

6.2.5 Disconnectors and status indicators ............................................................... 22

6.2.6 Insulation resistance ...................................................................................... 23

6.2.7 Dielectric withstand ....................................................................................... 23

6.2.8 Continuous current I ............................................................................... 23

CPV

6.2.9 Total discharge current I (for multipole SPDs) ........................................ 23

Total

6.3 Mechanical requirements ...................................................................................... 23

6.3.1 Mounting ....................................................................................................... 23

6.3.2 Screws, current carrying parts and connections ............................................. 23

---------------------- Page: 16 ----------------------
SIST EN 61643-31:2019
IEC 61643-31:2018 © IEC 2018 – 3 –

6.3.3 External connections ..................................................................................... 23

6.3.4 Air clearances and creepage distances .......................................................... 24

6.3.5 Mechanical strength....................................................................................... 24

6.4 Environmental and material requirements ............................................................. 24

6.4.1 General ......................................................................................................... 24

6.4.2 Life test under damp heat .............................................................................. 24

6.4.3 Electromagnetic compatibility ........................................................................ 24

6.5 Additional requirements for specific SPD designs ................................................. 25

6.5.1 One-port SPDs with separate input/output terminals – Rated load

current I ....................................................................................................... 25

6.5.2 Environmental tests for outdoor SPDs ........................................................... 25

6.5.3 SPDs with separate isolated circuits .............................................................. 25

6.6 Additional parameter if declared by the manufacturer – Maximum discharge

current I ......................................................................................................... 25

max

7 Type tests ..................................................................................................................... 25

7.1 General ................................................................................................................. 25

7.2 Testing procedures ............................................................................................... 26

7.2.1 General ......................................................................................................... 26

7.2.2 Test impulses ................................................................................................ 30

7.2.3 Characteristics of power sources for testing ................................................... 30

7.3 Indelibility of markings .......................................................................................... 32

7.4 Electrical tests ...................................................................................................... 32

7.4.1 Residual current I ..................................................................................... 32

7.4.2 Operating duty test ........................................................................................ 33

7.4.3 D
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.