SIST EN IEC 62896:2024

SLOVENSKI STANDARD
01-november-2024
Hibridni izolatorji za izmenične in enosmerne visokonapetostne aplikacije za
izmenične napetosti nad 1000 V in enosmerne napetosti nad 1500 V - Definicije,
preskusne metode, merila sprejemljivost (IEC 62896:2024)
Hybrid insulators for AC and DC for high-voltage applications greater than 1 000 V AC
and 1 500 V DC - Definitions, test methods and acceptance criteria (IEC 62896:2024)
Hybridisolatoren für Wechsel- und Gleichspannungsanwendungen für Spannungen
größer 1000 V AC und 1500 V DC – Definitionen, Prüfmethoden und
Annahmebedingungen (IEC 62896:2024)
Isolateurs hybrides pour applications haute tension en courant alternatif et en courant
continu supérieures à 1 000 V en courant alternatif et 1 500 V en courant continu -
Définitions, méthodes d’essai et critères d’acceptationb (IEC 62896:2024)
Ta slovenski standard je istoveten z: EN IEC 62896:2024
ICS:
29.080.10 Izolatorji Insulators
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62896

NORME EUROPÉENNE
EUROPÄISCHE NORM June 2024
ICS 29.080.10
English Version
Hybrid insulators for AC and DC for high-voltage applications
greater than 1 000 V AC and 1 500 V DC - Definitions, test
methods and acceptance criteria
(IEC 62896:2024)
Isolateurs hybrides pour applications haute tension en Hybridisolatoren für Wechsel- und
courant alternatif et en courant continu supérieures à 1 000 Gleichspannungsanwendungen für Spannungen größer
V en courant alternatif et 1 500 V en courant continu - 1000 V AC und 1500 V DC - Begriffe, Prüfverfahren und
Définitions, méthodes d'essai et critères d'acceptation Annahmebedingungen
(IEC 62896:2024) (IEC 62896:2024)
This European Standard was approved by CENELEC on 2024-06-18. 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, 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,
Türkiye 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62896:2024 E
European foreword
The text of document 36/594/FDIS, future edition 1 of IEC 62896, prepared by IEC/TC 36 "Insulators"
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) 2025-03-18
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-06-18
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62896:2024 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 standard indicated:
IEC 60273 NOTE Approved as HD 578 S1
IEC 60305 NOTE Approved as EN IEC 60305
IEC 60433 NOTE Approved as EN IEC 60433
IEC 60672-1 NOTE Approved as EN 60672-1
IEC 60672-2 NOTE Approved as EN 60672-2
IEC 60672-3 NOTE Approved as EN 60672-3
IEC 61109 NOTE Approved as EN 61109
IEC 61952 NOTE Approved as EN 61952
IEC 62231 NOTE Approved as EN 62231
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-471 2007 International Electrotechnical Vocabulary - - -
Part 471: Insulators
IEC 60168 - Tests on indoor and outdoor post EN 60168 -
insulators of ceramic material or glass for
systems with nominal voltages greater than
1000 V
IEC 60383-1 2023 Insulators for overhead lines with a EN IEC 60383-1 2023
nominal voltage above 1000 V - Part 1:
Ceramic or glass insulator units for a.c.
systems - Definitions, test methods and
acceptance criteria
IEC 60383-2 - Insulators for overhead lines with a EN 60383-2 -
nominal voltage above 1000 V - Part 2:
Insulator strings and insulator sets for a.c.
systems - Definitions, test methods and
acceptance criteria
IEC 62155 - Hollow pressurized and unpressurized EN 62155 -
ceramic and glass insulators for use in
electrical equipment with rated voltages
greater than 1 000 V
IEC 62217 - Polymeric HV insulators for indoor and EN 62217 -
outdoor use - General definitions, test
methods and acceptance criteria
IEC 61211 - Insulators of ceramic material or glass for EN 61211 -
overhead lines with a nominal voltage
greater than 1 000 V - Impulse puncture
testing in air
IEC 61325 - Insulators for overhead lines with a EN 61325 -
nominal voltage above 1000 V - Ceramic
or glass insulator units for d.c. systems -
Definitions, test methods and acceptance
criteria
IEC 62896 ®
Edition 1.0 2024-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Hybrid insulators for AC and DC for high-voltage applications greater than

1 000 V AC and 1 500 V DC – Definitions, test methods and acceptance criteria

Isolateurs hybrides pour applications haute tension en courant alternatif et en

courant continu supérieures à 1 000 V en courant alternatif et 1 500 V en courant

continu – Définitions, méthodes d’essai et critères d’acceptation

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.080.10  ISBN 978-2-8322-8755-2

– 2 – IEC 62896:2024  IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Identification . 11
5 Environmental conditions . 11
6 Tolerances . 11
7 Classification of tests. 11
7.1 Design tests . 11
7.2 Type tests . 12
7.3 Sample tests . 12
7.4 Routine tests. 12
8 Design tests . 15
8.1 General . 15
8.2 Tests on interfaces and connections of end fittings . 15
8.2.1 General . 15
8.2.2 Pre-stressing . 15
8.2.3 Verification tests . 16
8.3 Tests on Shed and Housing Material . 16
8.3.1 Hardness test . 16
8.3.2 Accelerated weathering test . 16
8.3.3 Tracking and erosion test . 17
8.3.4 Flammability test . 17
8.3.5 Hydrophobicity transfer test . 17
8.4 Test on core material . 17
8.4.1 Porosity test . 17
9 Type tests . 17
9.1 General . 17
9.2 Electrical tests . 17
9.3 Mechanical tests . 18
10 Sample tests . 18
11 Routine tests . 18
11.1 General . 18
11.2 Visual examination . 18
Bibliography . 19

Figure 1 – Classification of insulator designs . 8
Figure 2 – Thermal cycle test . 16

Table 1 – Required design and type tests . 13
Table 2 – Design tests . 15

IEC 62896:2024  IEC 2024 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HYBRID INSULATORS FOR AC AND DC HIGH-VOLTAGE
APPLICATIONS GREATER THAN 1 000 V AC AND 1 500 V DC –
DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA

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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 62896 has been prepared by IEC technical committee 36: Insulators. It is an International
Standard.
This first edition cancels and replaces the IEC TS 62896 published in 2015. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) modifications of terms and definitions;
b) modifications of tests procedures included in IEC TR 62039 and IEC 62217 (Hydrophobicity
transfer test);
c) harmonization of Table 1 (Tests to be carried out after design and type changes) with other
product standards and IEC 62217.

– 4 – IEC 62896:2024  IEC 2024
The text of this International Standard is based on the following documents:
Draft Report on voting
36/594/FDIS 36/597/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IEC 62896:2024  IEC 2024 – 5 –
INTRODUCTION
Hybrid insulators consist of an insulating core, bearing the mechanical load protected by a
polymeric housing, the load being transmitted to the core by end fittings. Despite these common
features, the materials used and the construction details employed by different manufacturers
may be quite different. The core is made of ceramic or glass material.
Hybrid insulators are applied as overhead line, post or hollow core equipment insulators. In
order to perform the design tests, IEC 62217 is intended to be applied for the polymeric housing
and the interfaces between core and the housing. For the core, the test standards for the
respective ceramic product (IEC 60168, IEC 60383-1 and −2 and IEC 62155) are intended to
be applied.
Some tests have been grouped together as "design tests", to be performed only once on
insulators which satisfy the same design conditions. For all design tests of hybrid insulators,
the common clauses defined in IEC 62217 are applied. As far as practical, the influence of time
on the electrical and mechanical properties of the components (core material, housing,
interfaces etc.) and of the complete hybrid insulators has been considered in specifying the
design tests to ensure a satisfactory life-time under normally known stress conditions in service.
Polymeric housing materials that show the hydrophobicity transfer mechanism (HTM) are
preferred for hybrid insulators. These housing materials are applied as a countermeasure
against severely polluted service conditions.
Pollution tests according to IEC 60507 or IEC 61245 are not included in this document since
they are designed for non-polymeric items. Specific pollution tests for polymeric insulators are
still under consideration.
– 6 – IEC 62896:2024  IEC 2024
HYBRID INSULATORS FOR AC AND DC HIGH-VOLTAGE
APPLICATIONS GREATER THAN 1 000 V AC AND 1 500 V DC –
DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA

1 Scope
This document applies to hybrid insulators for AC and DC applications greater than 1 000 V AC
and 1 500 V DC consisting of a load-bearing insulating solid or hollow core consisting of ceramic
or glass, a housing (defined geometry, outside the insulating core) made of polymeric material
and end fittings permanently attached to the insulating core.
Hybrid insulators covered by this document are intended for use as suspension/tension long
rod and cap and pin type insulators, line post insulators, station post insulators and hollow core
insulators for apparatus.
The object of this document is to:
• define the terms used;
• prescribe test methods;
• prescribe acceptance criteria.
Silicone or other functional coatings (CIGRE Technical Brochure No. 478), booster sheds, shed
extenders and rain deflectors are not within the scope of this document. CIGRE B2.69 published
two Technical Brochures, TB 837 and TB 838, in June 2021 with the scope of practical
applications and collection of experiences for anti-pollution coatings for insulators.
This document does not include requirements dealing with the choice of insulators for specific
operating conditions.
2 Normative references
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.
IEC 60050-471:2007, International Electrotechnical Vocabulary (IEV) – Part 471: Insulators
IEC 60168, Tests on indoor and outdoor post insulators of ceramic material or glass for systems
with nominal voltages greater than 1000 V
IEC 60383-1:2023, Insulators for overhead lines with a nominal voltage above 1000 V – Part 1:
Ceramic or glass insulator units for a.c. systems – Definitions, test methods and acceptance
criteria
IEC 60383-2, Insulators for overhead lines with a nominal voltage above 1000 V – Part 2:
Insulator strings and insulator sets for a.c. systems – Definitions, test methods and acceptance
criteria
IEC 62155, Hollow pressurized and unpressurized ceramic and glass insulators for use in
electrical equipment with rated voltages greater than 1 000 V

IEC 62896:2024  IEC 2024 – 7 –
IEC 62217, Polymeric HV insulators for indoor and outdoor use – General definitions, test
methods and acceptance criteria
IEC 61211, Insulators of ceramic material or glass for overhead lines with a nominal voltage
greater than 1 000 V – Impulse puncture testing in air
IEC 61325, Insulators for overhead lines with a nominal voltage above 1000 V – Ceramic or
glass insulator units for d.c. systems – Definitions, test methods and acceptance criteria
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-471:2007 and
the following apply (some definitions from IEC 62217 are reproduced here for ease of
reference).
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
high-voltage
HV
voltage over 1 000 V AC or over 1 500 V DC or over 1 500 V peak value
3.2
polymeric insulator
insulator whose insulating body consists of at least one organic based material
Note 1 to entry: Polymeric insulators are also known as non-ceramic insulators.
Note 2 to entry: Coupling devices may be attached to the ends of the insulating body.
[SOURCE: IEC 60050-471:2007, 471-01-13]
3.3
resin insulator
polymeric insulator whose insulating body consists of a solid insulator trunk and sheds
protruding from the insulator trunk made from only one organic based housing material (e.g.
cycloaliphatic epoxy)
3.4
composite insulator
polymeric insu
...