EN 62852:2015/A1:2020

Connectors for DC-application in photovoltaic systems - Safety requirements and tests

NEXT ACTION: PUBLICATION EXPECTED BY 2020-05-15

Steckverbinder für Gleichspannungsanwendungen in Photovoltaik-Systemen - Sicherheitsanforderungen und Prüfungen

Connecteurs pour applications en courant continu pour systèmes photovoltaïques - Exigences de sécurité et essais

Konektorji za enosmerne aplikacije v fotonapetostnih sistemih - Varnostne zahteve in preskusi - Dopolnilo A1

General Information

• Status: Published
• Publication Date: 14-May-2020
• ICS: 27.160 - Solar energy engineering
• Technical Committee: CLC/TC 82 - Solar photovoltaic energy systems
• Drafting Committee: IEC/TC 82 - IEC_TC_82
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 15-May-2020
• Completion Date: 15-May-2020
• Ref Project: SIST EN 62852:2015/A1:2020 - Connectors for DC-application in photovoltaic systems - Safety requirements and tests

Relations

• Amends: EN 62852:2015 - Connectors for DC-application in photovoltaic systems - Safety requirements and tests
• Effective Date: 23-Jan-2023

Overview

EN 62852:2015/A1:2020 (adoption of IEC 62852:2014/A1:2020) specifies safety requirements and test procedures for connectors for DC applications in photovoltaic (PV) systems. This CENELEC amendment A1 updates the original 2015 standard by adding construction, marking and test requirements to improve long‑term reliability, thermal endurance and mechanical performance of PV DC connectors. The amendment explicitly excludes connectors for data collection or tracker controls (but may be used as a guide for them).

Key topics and requirements

• Scope and exclusions: Applies to DC power connectors used in PV arrays; not intended for data/tracker-control connectors.
• Marking & identification: Connectors must carry identification and specified temperatures including ULT, LLT and maximum ambient temperature (the amendment requires a minimum declared maximum ambient of +85 °C). Manufacturers must also list RTE/RTI or TI values for polymeric insulators.
• Material thermal endurance: Polymeric insulating parts (inner and outer) require approved relative thermal endurance / relative thermal index (RTE/RTI) or temperature index (TI) in accordance with IEC 60216 series; UL 746B RTI values are accepted as alternative.
• Construction & conductors: Connectors must accept conductor types and cross‑sections declared by manufacturer, avoid insulation damage, and use conductors suitable for PV (reference IEC 62930). Flexible conductors should be Class 5 (IEC 60228); Class 2 allowed for fixed installations.
• Mechanical and climatic tests:
  • Mechanical operation cycles as specified by the manufacturer.
  • Cable anchorage tests: Pull test (50 pulls of 1 s) with displacement ≤ 2 mm after unloading; torsion test with rotation limit ≤ 45°. Specific pull forces and torques are defined by cable diameter (see Table 13/14 in the standard).
  • Temperature rise (ULT) limits; damp‑heat testing aligned to IEC 61215‑2 severity; thermal cycling to specified extremes (including +85 °C / -40 °C references).
• Degree of protection: Accessibility and probe tests per IEC 61032; insulation coordination guidance referenced (IEC TR 60664‑2‑1).

Applications and audience

Who uses EN 62852:2015/A1:2020:

• PV connector manufacturers and component designers - for product design, labeling and conformity.
• Test laboratories and certification bodies - to perform required safety and endurance tests.
• PV system designers, EPC contractors and installers - to specify compliant connectors for DC cabling and modules.
• Regulators and procurement teams - for product evaluation, spec writing and safety compliance.

Related standards

• IEC 62852 (base publication), IEC 60216 (thermal endurance), IEC 62930 (PV cables), IEC 61215‑2 (PV module test procedures), IEC 62548 (PV array design), ISO 868 (Shore hardness), UL 746B (RTI guidance).

Keywords: EN 62852:2015/A1:2020, PV connectors, DC connectors, photovoltaic systems, safety requirements, cable anchorage test, thermal endurance, RTE/RTI, IEC 62852.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2020
Konektorji za enosmerne aplikacije v fotonapetostnih sistemih - Varnostne zahteve
in preskusi - Dopolnilo A1
Connectors for DC-application in photovoltaic systems - Safety requirements and tests
Steckverbinder für Gleichspannungsanwendungen in Photovoltaik-Systemen -
Sicherheitsanforderungen und Prüfungen
Connecteurs pour applications en courant continu pour systèmes photovoltaïques -
Exigences de sécurité et essais
Ta slovenski standard je istoveten z: EN 62852:2015/A1:2020
ICS:
27.160 Sončna energija Solar energy engineering
31.220.10 Vtiči in vtičnice, konektorji Plug-and-socket devices.
Connectors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62852:2015/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2020
ICS 27.160
English Version
Connectors for DC-application in photovoltaic systems - Safety
requirements and tests
(IEC 62852:2014/A1:2020)
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/A1:2020) Prüfungen
(IEC 62852:2014/A1:2020)
This amendment A1 modifies the European Standard EN 62852:2015; it was approved by CENELEC on 2020-04-29. CENELEC members
are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 amendment 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62852:2015/A1:2020 E

European foreword
The text of document 82/1646/FDIS, future IEC 62852/A1, prepared by IEC/TC 82 "Solar photovoltaic
energy systems" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-01-29
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-04-29
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 shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 62852:2014/A1:2020 was approved by CENELEC as a
European Standard without any modification.

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Delete all year dates.
Add the following references:
Publication Year Title EN/HD Year
IEC 60112 - Method for the determination of the proof and - -
the comparative tracking indices of solid
insulating materials
IEC 60216-1 - Electrical insulating materials - Thermal EN 60216-1 -
endurance properties - Part 1: Ageing
procedures and evaluation of test results
IEC 60216-5 - Electrical insulating materials - Thermal - -
endurance properties - Part 5: Determination
of relative temperature index (RTI) of an
insulating material
IEC/TR 60664-2-1 - 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 62930 - Electric cables for photovoltaic systems with a - -
voltage rating of 1,5 kV DC
ISO 868 - Plastics and ebonite - Determination of EN ISO 868 -
indentation hardness by means of a durometer
(Shore hardness)
Replace:
Publication Year Title EN/HD Year
IEC 61215 2005 Crystalline silicon terrestrial photovoltaic (PV) - -
modules - Design qualification and type
approval
by:
Publication Year Title EN/HD Year
IEC 61215-2 - Terrestrial photovoltaic (PV) modules - Design - -
qualification and type approval - Part 2: Test
procedures
Replace:
Publication Year Title EN/HD Year
IEC/TS 62548 - Photovoltaic (PV) arrays - Design - -
requirements
by:
Publication Year Title EN/HD Year
IEC 62548 - Photovoltaic (PV) arrays - Design - -
requirements
IEC 62852 ®
Edition 1.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
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
INTERNATIONALE
ICS 27.160 ISBN 978-2-8322-7867-3

– 2 – IEC 62852:2014/AMD1:2020
© IEC 2020
FOREWORD
This amendment has been prepared by IEC technical committee 82: Solar photovoltaic energy
systems.
The text of this amendment is based on the following documents:
FDIS Report on voting
82/1646/FDIS 82/1667/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
1 Scope
Add the following new sentence after the last paragraph:
This document does not apply to connectors for data collection, tracker controls or similar, but
it may be used as a guide for those connectors.
2 Normative references
Delete all year dates.
Add the following new references:
IEC 60112, Method for the determination of the proof and the comparative tracking indices of
solid insulating materials
IEC 60216-1, Electrical insulating materials – Thermal endurance properties – Part 1: Ageing
procedures and evaluation of test results
IEC 60216-5, Electrical insulating materials – Thermal endurance properties – Part 5:
Determination of relative thermal endurance index (RTE) of an insulating material

IEC 62852:2014/AMD1:2020 – 3 –
© IEC 2020
IEC TR 60664-2-1, 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 62930, Electric cables for photovoltaic systems with a voltage rating of 1,5 kV DC
ISO 868, Plastics and
...