EN 62852:2015
(Main)Connectors for DC-application in photovoltaic systems - Safety requirements and tests
Connectors for DC-application in photovoltaic systems - Safety requirements and tests
IEC 62852:2014 applies to connectors for use in the d.c. circuits of photovoltaic systems according to class II of IEC 61140:2001 with rated voltages up to 1 500 V d.c. and rated currents up to 125 A per contact. It applies to connectors without breaking capacity but which might be engaged and disengaged under voltage.
Steckverbinder für Gleichspannungsanwendungen in Photovoltaik-Systemen - Sicherheitsanforderungen und Prüfungen
Connecteurs pour applications en courant continu pour systèmes photovoltaïques - Exigences de sécurité et essais
L'IEC 62852:2014 s'applique aux connecteurs utilisés dans les circuits à courant continu des systèmes photovoltaïques selon la classe II de l'IEC 61140:2001 de tension assignée allant jusqu'à 1 500 V en courant continu et de courant assigné allant jusqu'à 125 A par contact. Elle s'applique à des connecteurs sans pouvoir de coupure mais qui peuvent être branchés et débranchés sous tension.
Konektorji za enosmerne aplikacije v fotonapetostnih sistemih - Varnostne zahteve in preskusi (IEC 62852:2014)
Ta mednarodni standard se uporablja za konektorje za uporabo v enosmernih tokokrogih fotonapetostnih sistemov v skladu z razredom II standarda IEC 61140:2001 z nazivnimi napetostmi do 1500 V in nazivnimi tokovi do 125 A na stik. Ta standard se uporablja za konektorje brez zmogljivosti prekinitve, vendar jih je mogoče priključiti in odstraniti pod napetostjo.
Ta standard se uporablja tudi za konektorje, ki so namenjeni vgradnji ali vdelavi v ohišje naprav za fotonapetostne sisteme. Ta standard je mogoče uporabiti kot vodilo za konektorje v fotonapetostnih sistemih razredov 0 in III v skladu s standardom IEC 61140:2001 in za zaščito za opremo razreda II, namenjeno uporabi pri enosmerni nazivni napetosti manj kot 50 V.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2015
Konektorji za enosmerne aplikacije v fotonapetostnih sistemih - Varnostne zahteve
in preskusi (IEC 62852:2014)
Connectors for DC-application in photovoltaic systems - Safety requirements and tests
Ta slovenski standard je istoveten z: EN 62852:2015
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
31.220.10 9WLþLLQYWLþQLFHNRQHNWRUML Plug-and-socket devices.
Connectors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 62852
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2015
ICS 27.160
English Version
Connectors for DC-application in photovoltaic systems - Safety
requirements and tests
(IEC 62852:2014)
Connecteurs pour applications en courant continu pour Steckverbinder für Gleichspannungsanwendungen in
systèmes photovoltaïques - Exigences de sécurité et essais Photovoltaik-Systemen - Sicherheitsanforderungen und
(IEC 62852:2014) Prüfungen
(IEC 62852:2014)
This European Standard was approved by CENELEC on 2014-12-11. 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
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62852:2015 E
Foreword
The text of document 82/878/FDIS, future edition 1 of IEC 62852, prepared by IEC/TC 82 "Solar
photovoltaic energy systems" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 62852:2015.
The following dates are fixed:
(dop) 2015-09-13
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2017-12-11
• latest date by which the national 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 62852:2014 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60068-2-70:1995 NOTE Harmonized as EN 60068-2-70:1996 (not modified).
IEC 60112:2003 NOTE Harmonized as EN 60112:2003 (not modified).
IEC 60364-4-41:2005 NOTE Harmonized as HD 60364-4-41:2007 (modified).
IEC 60364-5-51:2005 NOTE Harmonized as HD 60364-5-51:2009 (modified).
IEC 60364-5-54:2011 NOTE Harmonized as HD 60364-5-54:2011 (not modified).
IEC 61730-1:2004 NOTE Harmonized as EN 61730-1:2007 (modified).
IEC 61730-2 NOTE Harmonized as EN 61730-2.
- 3 - EN 62852:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050 series International Electrotechnical - -
Vocabulary
IEC 60060-1 2010 High-voltage test techniques - EN 60060-1 2010
Part 1: General definitions and test
requirements
IEC 60068-1 2013 Environmental testing - EN 60068-1 2014
Part 1: General and guidance
IEC 60068-2-14 2009 Environmental testing - EN 60068-2-14 2009
Part 2-14: Tests - Test N: Change of
temperature
IEC 60068-2-75 1997 Environmental testing - EN 60068-2-75 1997
Part 2-75: Tests - Test Eh: Hammer
tests
IEC 60068-2-78 2012 Environmental testing - EN 60068-2-78 2013
Part 2-78: Tests - Test Cab: Damp
heat, steady state
IEC 60228 2004 Conductors of insulated cables EN 60228 2005
- - + corrigendum May 2005
IEC 60309-1 1999 Plugs, socket-outlets and couplers for EN 60309-1 1999
industrial purposes -
Part 1: General requirements
IEC 60352-2 2006 Solderless connections - EN 60352-2 2006
Part 2: Crimped connections - General
requirements, test methods and
practical guidance
IEC 60352-3 1993 Solderless connections - EN 60352-3 1994
Part 3: Solderless accessible insulation
displacement connections - General
requirements, test methods and
practical guidance
Publication Year Title EN/HD Year
IEC 60352-4 1994 Solderless connections - EN 60352-4 1994
Part 4: Solderless non-accessible
insulation displacement connections -
General requirements, test methods
and practical guidance
IEC 60352-5 2012 Solderless connections - EN 60352-5 2012
Part 5: Press-in connections - General
requirements, test methods and
practical guidance
IEC 60352-6 1997 Solderless connections - EN 60352-6 1997
Part 6: Insulation piercing connections -
General requirements, test methods
and practical guidance
IEC 60352-7 2002 Solderless connections - EN 60352-7 2002
Part 7: Spring clamp connections -
General requirements, test methods
and practical guidance
IEC 60364-7-712 2002 Electrical installations of buildings - HD 60364-7-712 2005
- - Part 7-712: Requirements for special + corrigendum Apr. 2006
installations or locations - Solar
photovoltaic (PV) power supply
systems
IEC 60512 series Connectors for electronic equipment - EN 60512 series
Tests and measurements
IEC 60512-1 2001 Connectors for electronic equipment - EN 60512-1 2001
Tests and measurements -
Part 1: General
IEC 60512-11-7 2003 Connectors for electronic equipment - EN 60512-11-7 2003
Tests and measurements -
Part 11- 7: Climatic tests - Test 11g:
Flowing mixed gas corrosion test
IEC 60529 1989 Degrees of protection provided by EN 60529 1991
- - enclosures (IP Code) + corrigendum May 1993
IEC 60664-1 2007 Insulation coordination for equipment EN 60664-1 2007
within low-voltage systems -
Part 1: Principles, requirements and
tests
IEC 60695-2-11 2014 Fire hazard testing - EN 60695-2-11 2014
Part 2-11: Glowing/hot-wire based test
methods - Glow-wire flammability test
method for end-products (GWEPT)
IEC 60695-11-10 2013 Fire hazard testing - EN 60695-11-10 2013
Part 11-10: Test flames - 50 W
horizontal and vertical flame test
methods
IEC/TR 60943 1998 Guidance concerning the permissible - -
temperature rise for parts of electrical
equipment, in particular for terminals
- 5 - EN 62852:2015
Publication Year Title EN/HD Year
IEC 60998-2-3 (mod) 2002 Connecting devices for low-voltage EN 60998-2-3 2004
circuits for household and similar
purposes -
Part 2-3: Particular requirements for
connecting devices as separate entities
with insulation-piercing clamping units
IEC 60999-1 1999 Connecting devices - Electrical copper EN 60999-1 2000
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 60999-2 2003 Connecting devices - Electrical copper EN 60999-2 2003
conductors - Safety requirements for
screw-type and screwless-type
clamping units -
Part 2: Particular requirements for
clamping units for conductors above
35 mm² up to 300 mm² (included)
IEC 61032 1997 Protection of persons and equipment EN 61032 1998
by enclosures - Probes for verification
IEC 61140 2001 Protection against electric shock - EN 61140 2002
Common aspects for installation and
equipment
IEC 61210 (mod) 2010 Connecting devices - Flat quick- EN 61210 2010
connect terminations for electrical
copper conductors - Safety
requirements
IEC 61215 2005 Crystalline silicon terrestrial EN 61215 2005
photovoltaic (PV) modules - Design
qualification and type approval
IEC 61984 2008 Connectors - Safety requirements and EN 61984 2009
tests
IEC 62444 (mod) 2010 Cable glands for electrical installations EN 62444 2013
IEC/TS 62548 - Photovoltaic (PV) arrays - Design - -
requirements
ISO 4892-2 - Plastics - Methods of exposure to EN ISO 4892-2 -
laboratory light sources -
Part 2: Xenon-arc lamps
ISO 4892-3 - Plastics - Methods of exposure to EN ISO 4892-3 -
laboratory light sources -
Part 3: Fluorescent UV lamps
ISO 6988 1985 Metallic and other non-organic EN ISO 6988 1994
coatings - Sulfur dioxide test with
general condensation of moisture
IEC 62852 ®
Edition 1.0 2014-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for DC-application in photovoltaic systems – Safety requirements
and tests
Connecteurs pour applications en courant continu pour systèmes
photovoltaïques – Exigences de sécurité et essais
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX X
ICS 27.160 ISBN 978-2-8322-1898-3
– 2 – IEC 62852:2014 © IEC 2014
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 8
4 Classification . 12
4.1 General . 12
4.2 Type of connector . 12
4.3 Additional characteristics . 12
5 Constructional requirements and performance . 13
5.1 General . 13
5.2 Marking and identification . 13
5.2.1 Identification . 13
5.2.2 Marking . 13
5.2.3 Technical documentation . 13
5.3 Provision against incorrect mating (non-intermateable) . 14
5.4 Protection against electric shock . 14
5.5 Terminations and connection methods . 14
5.6 Resistance to deterioration . 15
5.7 General design . 15
5.8 Design of a free connector . 15
5.9 Degree of protection (IP Code) . 16
5.10 Dielectric strength . 16
5.11 Mechanical and electrical durability . 16
5.12 Range of ambient temperature . 16
5.13 Temperature rise . 16
5.14 Cable anchorage . 16
5.15 Mechanical strength . 17
5.16 Connector without locking device . 17
5.17 Connector with locking device . 17
5.18 Clearances and creepage distances . 17
5.18.1 General . 17
5.18.2 Clearances . 18
5.18.3 Creepage distances . 18
5.19 Insulation parts . 20
5.19.1 General . 20
5.19.2 Outer accessible parts . 20
5.19.3 Inner parts . 20
5.20 Current carrying parts and resistance against corrosion . 20
6 Tests . 20
6.1 General . 20
6.2 Preparation of specimens . 21
6.3 Performance of tests . 22
6.3.1 General . 22
6.3.2 Durability of marking . 23
6.3.3 Protection against electric shock . 23
6.3.4 Temperature rise . 23
IEC 62852:2014 © IEC 2014 – 3 –
6.3.5 Mechanical operation . 23
6.3.6 Bending (flexing) test (see IEC 60309-1:1999, 24.4) . 24
6.3.7 Measurement of clearances and creepage distances . 25
6.3.8 Dielectric strength . 25
6.3.9 Corrosion test . 26
6.3.10 Mechanical strength at lower temperatures . 26
6.3.11 Change of temperature (IEC 60068-2-14 test Na) . 26
6.3.12 Damp heat test . 26
6.3.13 Insertion and withdrawal force . 27
6.3.14 Effectiveness of connector coupling device . 27
6.3.15 Terminations and connecting methods . 27
6.4 Test schedule (routine test) for non-rewirable free connectors . 28
6.5 Test schedule . 28
Annex A (informative) Warning symbols used on connectors . 35
Annex B (normative) Measurement of clearances and creepage distances . 36
Bibliography . 40
Figure 1 – Device for the bending test. 25
Figure A.1 – Symbol "DO NOT DISCONNECT UNDER LOAD" . 35
Figure A.2 – Symbol "DO NOT DISCONNECT UNDER LOAD” (IEC 60417-6070) . 35
Figure B.1– Examples of methods of measuring clearances and creepage distances . 39
Table 1 – Values for cable anchorage testing . 17
Table 2 – Rated impulse voltages and minimum clearances . 18
Table 3 – Creepage distances for basic insulation. . 19
Table 4 – Plan of specimens required for tests . 21
Table 5 – Values of torque for screw-type clamping units . 22
Table 6 – Mechanical test group A (test group A are separate tests) . 28
Table 7 – Service life test group B . 29
Table 8 – Service life test group C . 30
Table 9 – Thermal test group D (mated test specimen) . 31
Table 10 – Climatic test group E (mated test specimen) . 32
Table 11 – Degree of protection, test group F . 33
Table 12 – Insulation material, test group G . 34
Table B.1 – Dimensions of X . 36
– 4 – IEC 62852:2014 © IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR DC-APPLICATION IN PHOTOVOLTAIC SYSTEMS –
SAFETY REQUIREMENTS AND TESTS
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 62852 has been prepared by IEC technical committee 82: Solar
photovoltaic energy systems.
This International Standard is derived from EN 50521.
The text of this standard is based on the following documents:
FDIS Report on voting
82/878/FDIS 82/905/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.
IEC 62852:2014 © IEC 2014 – 5 –
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 6 – IEC 62852:2014 © IEC 2014
CONNECTORS FOR DC-APPLICATION IN PHOTOVOLTAIC SYSTEMS –
SAFETY REQUIREMENTS AND TESTS
1 Scope
This International Standard applies to connectors for use in the d.c. circuits of photovoltaic
systems according to class II of IEC 61140:2001 with rated voltages up to 1 500 V d.c. and
rated currents up to 125 A per contact.
This standard applies to connectors without breaking capacity but which might be engaged
and disengaged under voltage.
This standard also applies to connectors which are intended to be built-in or integrated in
enclosures of devices for photovoltaic systems. This standard may be used as a guide for
connectors in photovoltaic systems of classes 0 and III according to IEC 61140:2001 as well
as for protection for Class II equipment intended for use at less than 50 V d.c.
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 document (including any
amendments) applies.
IEC 60050 (all parts): International Electrotechnical Vocabulary (available at
http://www.electropedia.org)
IEC 60060-1:2010, High-voltage test techniques – Part 1: General definitions and test
requirements
IEC 60068-1:2013, Environmental testing – Part 1: General and guidance
IEC 60068-2-14:2009, Environmental testing – Part 2-14: Tests – Test N: Change of
temperature
IEC 60068-2-75:1997, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60068-2-78:2012, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat,
steady state
IEC 60228:2004, Conductors of insulated cables
IEC 60309-1:1999, Plugs, socket-outlets and couplers for industrial purposes – Part 1:
General requirements
IEC 60352-2:2006, Solderless connections – Part 2: Solderless crimped connections –
General requirements, test methods and practical guidance
IEC 60352-3:1993, Solderless connections – Part 3: Solderless accessible insulation
displacement connections – General requirements, test methods and practical guidance
IEC 62852:2014 © IEC 2014 – 7 –
IEC 60352-4:1994, Solderless connections – Part 4: Solderless non-accessible insulation
displacement connections – General requirements, test methods and practical guidance
IEC 60352-5:2012, Solderless connections – Part 5: Press-in connections – General
requirements, test methods and practical guidance
IEC 60352-6:1997, Solderless connections – Part 6: Insulation piercing connections – General
requirements, test methods and practical guidance
IEC 60352-7:2002, Solderless connections – Part 7: Spring clamp connections – General
requirements, test methods and practical guidance
IEC 60364-7-712:2002, Electrical installations of buildings – Part 7-712: Requirements for
special installations or locations – Solar photovoltaic (PV) power supply systems
IEC 60512 (all parts), Connectors for electronic equipment – Tests and measurements
IEC 60512-1:2001, Connectors for electronic equipment – Tests and measurements – Part 1:
General
IEC 60512-11-7:2003, Electromechanical components for electronic equipment – Basic testing
procedures and measuring methods – Part 11-7: Climatic tests – Test 11g: Flowing mixed gas
corrosion test
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60664-1:2007, Insulation coordination for equipment within low voltage systems – Part 1:
Principles, requirements and tests
IEC 60695-2-11:2014, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods -
Glow-wire flammability test method for end-products (GWEPT)
IEC 60695-11-10:2013, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and
vertical flame test methods
IEC TR 60943:1998, Guidance concerning the permissible temperature rise for parts of
electrical equipment, in particular for terminals
IEC 60998-2-3:2002, Connecting devices for low-voltage circuits for household and similar
purposes – Part 2-3: Particular requirements for connecting devices as separate entities with
insulation-piercing clamping units
IEC 60999-1:1999, Connecting devices – Electrical copper conductors – Safety requirements
for screw-type and screwless-type clamping units – Part 1: General requirements and
2 2
particular requirements for clamping units for conductors from 0,2 mm up to 35 mm
(included)
IEC 60999-2:2003, Connecting devices – Electrical copper conductors – Safety requirements
for screw-type and screwless-type clamping units – Part 2: Particular requirements for
2 2
clamping units for conductors above 35 mm up to 300 mm (included)
IEC 61032:1997, Protection of persons and equipment by enclosures – Probes for verification
IEC 61140:2001, Protection against electric shock – Common aspects for installation and
equipment
– 8 – IEC 62852:2014 © IEC 2014
IEC 61210: 2010, Connecting devices – Flat quick-connect terminations for electrical copper
conductors –Safety requirements
IEC 61215:2005, Crystalline silicon terrestrial photovoltaic (PV) modules – Design
qualification and type approval
IEC 61984:2008, Connectors – Safety requirements and tests
IEC 62444:2010, Cable glands for electrical installations
IEC TS 62548, Photovoltaic (PV) arrays – Design requirements
ISO 4892-2, Plastics – Methods of exposure to laboratory light sources – Part 2: Xenon-arc
sources
ISO 4892-3, Plastics – Methods of exposure to laboratory light sources – Part 3: Fluorescent
UV-lamps
ISO 6988:1985, Metallic and other non organic coatings – Sulfur dioxide test with general
condensation of moisture
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-581,
IEC 60050-826, IEC 60309-1, IEC 60664-1, IEC 60999-1 and IEC 61140, as well as the
following apply.
3.1
connector
component which terminates conductors for the purpose of providing connection to and
disconnection from a suitable mating component
[SOURCE: IEC 60050-581:2008, 581-06-01]
3.2
multi-way connector
connector with more than one contact
Note 1 to entry: Multiple single-way connectors used in a PV-junction box are not to be regarded as a multi-way
connector according to this standard.
3.3
connector under voltage
CuV
connector specially designed to be engaged or disengaged in normal use when live but not
under load
Note 1 to entry: In this standard, the term "live" is used if contacts are under an applied voltage, but not
necessarily carrying current. The term "load" is used if a current is flowing through the contacts.
3.4
connector without breaking capacity
COC
connector which is not allowed to be engaged or disengaged in normal use when live or under
load
[SOURCE: IEC 60050-581:2008, 581-27-73]
IEC 62852:2014 © IEC 2014 – 9 –
3.5
type of connector
3.5.1
free connector
connector for attachment to the free end of a wire or cable
[SOURCE: IEC 60050-581:2008, 581-06-12]
3.5.2
built-in connector
a pre-manufactured connector that is subsequently integrated into an enclosure
3.5.3
integrated connector
a connector assembly that is manufactured as an integral component during enclosure
fabrication
3.6
non-rewirable connector
connector so constructed that the cable cannot be separated from the connector without
making it permanently useless
[SOURCE: IEC 60309-1:1999, 2.5, modified]
3.7
connector for Class II equipment
connector in which the protection against indirect contact is realised by double or reinforced
insulation
Note 1 to entry: Class II according to IEC 61140.
3.8
intended use
application conditions of connectors which are included within the permissible rated values
and environmental conditions and characteristics assigned by the manufacturer
3.9
interlock
device, either electrical or mechanical, which prevents the contacts of a connector from
becoming live before it is in proper engagement with its counterpart, and which either
prevents the connector from being withdrawn while its contacts are live or makes the contacts
dead before separation
[SOURCE: IEC 60309-1:1999, 2.9, modified]
3.10
cycle of mechanical operation
one insertion and one withdrawal of the connector with his counterpart
3.11
clamping unit
part(s) of the terminal necessary for the mechanical clamping and the electrical connection of
the conductor(s), including the parts which are necessary to ensure the correct contact
pressure
[SOURCE: IEC 60999-1:1999, 3.1]
– 10 – IEC 62852:2014 © IEC 2014
3.12
upper limiting temperature
maximum temperature of a connector as defined by the manufacturer, in which the connector
is intended to operate
Note 1 to entry: The abbreviation ULT is often used.
3.13
ambient temperature
maximum temperature of the ambient assigned from the manufacturer, in which the connector
is able to operate permanently without the upper limiting temperature being exceeded
3.14
lower limiting temperature
minimum temperature of a connector as defined by the manufacturer in which a connector is
intended to operate
Note 1 to entry: The abbreviation LLT is often used.
3.15
clearance
the shortest distance in air between two conductive parts
[SOURCE: IEC 60664-1:2007, 1.3.2]
3.16
creepage distance
shortest distance along the surface of the insulating material between two conductive parts
[SOURCE: IEC 60664-1:2007, 1.3.3]
3.17
overvoltage category
numeral defining a transient overvoltage condition
[SOURCE: IEC 60664-1:2007, 1.3.10]
3.18
pollution
any addition of foreign matter, solid, liquid, or gaseous, that can result in a reduction of
electric strength or surface resistivity of the insulation
[SOURCE: IEC 60664-1:2007, 1.3.11]
3.19
pollution degree
numeral characterising the expected pollution of the micro-environment
[SOURCE: IEC 60664-1:2007, 1.3.13]
3.20
rated voltage
value of voltage assigned by the manufacturer to the connector and to which operation and
performance characteristics are referred
Note 1 to entry: Rated voltage is equivalent to the rated system voltage according to IEC 61730-1.
[SOURCE: IEC 60664-1:2007, 1.3.9, modified]
IEC 62852:2014 © IEC 2014 – 11 –
3.21
rated insulation voltage
r.m.s. withstand voltage value assigned by the manufacturer to the connector, characterising
the specified (long term) withstand capability of its insulation
Note 1 to entry: The rated insulation voltage is not necessarily equal to the rated voltage, which is primarily
related to functional performance.
[SOURCE: IEC 60664-1:2007, 1.3.9.1, modified]
3.22
rated impulse voltage
impulse withstand voltage value assigned by the manufacturer to the connector,
characterising the specified withstand capability of its insulation against transient
overvoltages
[SOURCE: IEC 60664-1:2007, 1.3.9.2, modified]
3.23
impulse withstand voltage
highest peak value of impulse voltage, of prescribed form and polarity which does not cause
breakdown of the insulation under specified conditions
Note 1 to entry: The impulse withstand voltage is equal to or higher than the rated impulse voltage.
[SOURCE: IEC 60664-1:2007, 1.3.8.1]
3.24
r.m.s. withstand voltage
power-frequency withstand voltage
highest r.m.s. value of a voltage which does not cause breakdown of the insulation under
specified conditions
[SOURCE: IEC 60664-1:2007, 1.3.8.2]
3.25
rated current
current value assigned by the manufacturer, which the connector can carry continuously
(without interruption) and simultaneously through all its contacts wired with the largest
specified conductor, preferably at an ambient temperature of 85 °C, without the upper limiting
temperature being exceeded
Note 1 to entry:If other ambient temperature values are used for the definition of the rated current, the
manufacturer should state in the technical documentation the ambient temperature on which the rating is based,
with reference, if appropriate, to the derating curve defined in IEC 60512-5-2, test 5b.
3.26
functional insulation
insulation between conductive parts which is necessary only for the proper functioning of the
equipment
[SOURCE: IEC 60664-1:2007, 1.3.17.1]
3.27
basic insulation
insulation applied to live parts to provide basic protection against electric shock
Note 1 to entry: Basic insulation does not necessarily include insulation used exclusively for functional purposes
(see IEC 61140:2001, 3.10.1).
– 12 – IEC 62852:2014 © IEC 2014
[SOURCE: IEC 60664-1:2007, 1.3.17.2]
3.28
supplementary insulation
independent insulation applied in addition to basic insulation, in order to provide protection
against electric shock in the event of a failure of basic insulation (see IEC 61140:2001,
3.10.2)
[SOURCE: IEC 60664-1:2007, 1.3.17.3]
3.29
double insulation
insulation comprising both basic insulation and supplementary insulation (see
IEC 61140:2001, 3.10.3)
[SOURCE: IEC 60664-1:2007, 1.3.17.4]
3.30
reinforced insulation
single insulation system applied to live parts, which provides a degree of protection against
electric shock equivalent to double insulation under the conditions specified in the relevant
IEC standard (see IEC 61140:2001, 3.10.4)
Note 1 to entry: A single insulation system does not imply that the insulation is a homogeneous piece. It may
comprise several layers which cannot be tested separately as basic or supplementary insulation.
[SOURCE: IEC 60664-1:2007, 1.3.17.5]
3.31
internal insulation
part of basic insulation providing the required clearance and creepage distances inside a
conductive housing or enclosure
4 Classification
4.1 General
In order to apply the relevant test requirements, connectors shall be classified by the
manufacturer’s specification, according to their intended use under consideration of class II,
according to IEC 61140 and characteristics, as set out below.
4.2 Type of connector
a) Free connector.
b) Built-in connector.
c) Integrated connector.
4.3 Additional characteristics
a) Connector with cable anchorage.
b) IP-code of a connector according to IEC 60529.
c) Connector for Class II equipment.
d) Non-rewirable connector.
e) Rewirable connector.
f) Terminations and connection methods.
IEC 62852:2014 © IEC 2014 – 13 –
5 Constructional requirements and performance
5.1 General
This standard does not define electrical rating values for voltage and current. These values
are assigned by the manufacturer.
Connectors shall be suitable for durable outdoor use in an ambient temperature area from
–40 °C to +85 °C.
Multi-way connectors shall be designed so that these requirements for earth-faulted and
short-circuit-proofed installation complies with IEC TS 62548 or IEC 60364-7-712.
Compliance with the requirements is verified by the specified tests of this standard.
5.2 Marking and identification
5.2.1 Identification
Connectors shall be identified and characterised by the following:
a) manufacturer’s name, trademark or mark of origin;
b) type reference (for example, the catalogue number);
c) rated current in amperes (A);
d) rated voltages or rated insulation voltages between line to earth and line to line in volts
(V);
e) rated impulse voltage in kilovolts (kV), if specified;
f) pollution degree;
g) degree of protection by enclosure according to IEC 60529;
h) range of temperature (ULT and LLT, maximum ambient temperature);
i) type of terminals;
j) connectable conductors;
NOTE For current capacity of cables and wires, see IEC 60364-5-52.
k) reference to this standard or to the Detail Specification (DS), if applicable;
l) symbols „Do not disconnect under load“, as given in Annex A; alternatively an adequate
warning notice can be found in particular national language;
m) polarity of connector, if applicable.
5.2.2 Marking
The marking shall be indelible and easily legible.
The minimum marking on the connector shall be that of item a), l) and m) in 5.2.1.
Symbol or warning notice listed in I) of 5.2.1 shall be imprinted or labelled close to connector.
A notice to attach the label shall be given in technical documentation.
Markings a) and b) of 5.2.1 shall be applied on the smallest package unit.
5.2.3 Technical documentation
Identification items of 5.2.1 not marked on the connector according to 5.2.2 and the following
information shall be given in the technical documentation of the manufacturer:
– 14 – IEC 62852:2014 © IEC 2014
a) information regarding the type of cable suitable for termination, if applicable;
b) information regarding mounting, if applicable;
c) assembly information such as required tooling (part number) by manufacturer, if
applicable.
5.3 Provision against incorrect mating (non-intermateable)
A multi-way connector shall be so designed that contact between live contacts of different
polarity is not possible by engagement.
Compliance shall be tested by performing a polarisation test (see A3 of Table 6).
5.4 Protection against electric shock
5.4.1 A connector shall be so designed that, after mounting, its live parts are not accessible
by the IEC test finger in accordance with IEC 60529.
5.4.2 Protection against electric shock shall be ensured also during insertion and
withdrawal. Compliance shall be tested by the IEC test probe 11 in accordance with
IEC 61032.
5.5 Terminations and connection methods
This standard applies to the following terminations and connection methods:
a) crimped connections according to IEC 60352-2
b) insulation displacement connections according to IEC 60352-3 (accessible IDC) or
IEC 60998-2-3
c) insulation displacement connections according to IEC 60352-4 (non-accessible
IDC) or IEC 60998-2-3
d) press-in connections according to IEC 60352-5
e) insulation piercing connections according to IEC 60352-6 or IEC 60998-2-3
f) screwless-type clamping units according to IEC 60999-1 or IEC 60999-2
or IEC 60352-7
g) screw-type clamping units according to IEC 60999-1 or IEC 60999-2
h) flat, quick-connect terminations according to IEC 61210
As a minimum the applicable tests according to 6.3.15 shall be performed for all terminations
and connection methods intended to be used.
Other terminations and connection methods shall be tested in accordance with the relevant
standards.
Soldering and welding connections are also permitted.
Termination and connection methods shall provide sufficient means for retaining the
conducto
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