EN IEC 62896:2024

SLOVENSKI STANDARD
oSIST prEN IEC 62896:2023
01-april-2023
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
Hybrid insulators for a.c. and d.c. for high-voltage applications greater than 1000V AC
and 1500 V DC - Definitions, test methods and acceptance criteria
Ta slovenski standard je istoveten z: prEN IEC 62896:2023
ICS:
29.080.10 Izolatorji Insulators
oSIST prEN IEC 62896:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 62896:2023
oSIST prEN IEC 62896:2023
36/554/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62896 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-01-27 2023-04-21
SUPERSEDES DOCUMENTS:
36/539/CD, 36/551A/CC
IEC TC 36 : INSULATORS
SECRETARIAT: SECRETARY:
Sweden Mr Dan Windmar
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of
• any relevant patent rights of which they are aware and to provide supporting documentation,
• any relevant “in some countries” clauses to be included should this proposal proceed. Recipients are
reminded that the enquiry stage is the final stage for submitting "in some countries" clauses. See
AC/22/2007.
TITLE:
Hybrid insulators for a.c. and d.c. for high-voltage applications greater than 1000V AC and 1500
V DC - Definitions, test methods and acceptance criteria

PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing
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oSIST prEN IEC 62896:2023
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1 CONTENTS
2 FOREWORD . 3
3 INTRODUCTION . 5
4 1 Scope . 6
5 2 Normative references. 6
6 3 Definitions . 7
7 4 Identification . 10
8 5 Environmental conditions . 10
9 6 Tolerances . 10
10 7 Classification of tests . 10
11 7.1 Design tests . 10
12 7.2 Type tests . 11
13 7.3 Sample tests . 11
14 7.4 Routine tests . 11
15 8 Design tests . 13
16 8.1 General . 13
17 8.2 Tests on interfaces and connections of end fittings . 14
18 8.2.1 General . 14
19 8.2.2 Pre-stressing . 14
20 8.2.3 Verification tests . 15
21 8.3 Tests on Shed and Housing Material . 15
22 8.3.1 Hardness test . 15
23 8.3.2 Accelerated weathering test . 15
24 8.3.3 Tracking and erosion test . 15
25 8.3.4 Flammability test . 15
26 8.3.5 Hydrophobicity transfer test . 15
27 9 Type tests . 16
28 9.1 General . 16
29 9.2 Electrical tests . 16
30 9.3 Mechanical tests . 16
31 10 Sample tests . 16
32 11 Routine tests . 16
33 Bibliography . 18
35 Figure 1 – Thermal cycle test . 14
37 Table 1 – Required tests . 12
38 Table 2 – Design tests . 13
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42 INTERNATIONAL ELECTROTECHNICAL COMMISSION
43 ____________
45 HYBRID INSULATORS FOR AC AND DC HIGH-VOLTAGE APPLICATIONS
46 GREATER THAN 1000 V AC and 1500 V DC – DEFINITIONS, TEST
47 METHODS
48 AND ACCEPTANCE CRITERIA
51 FOREWORD
52 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization compris ing
53 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
54 international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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60 International Organization for Standardization (ISO) in accordance with conditions determined by agreement
61 between the two organizations.
62 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
63 consensus of opinion on the relevant subjects since each technical committee has representation from all
64 interested IEC National Committees.
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69 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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71 between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
72 the latter.
73 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
74 equipment declared to be in conformity with an IEC Publication.
75 6) All users should ensure that they have the latest edition of this publication.
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79 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
80 Publications.
81 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
82 indispensable for the correct application of this publication.
83 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
84 patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
85 This new edition cancels and replaces the technical specification and the document is
86 transferred into international standard as per result of inquiry.
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89 The text of this standard is based on the following documents:
CDV Report on voting
To be completed To be completed
91 Full information on the voting for the approval of this standard can be found in the report on
92 voting indicated in the above table.
93 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
94 The committee has decided that the contents of this publication will remain unchanged until
95 the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
96 the data related to the specific publication. At this date, the publication will be
97 • reconfirmed,
98 • withdrawn,
99 • replaced by a revised edition, or
100 • amended.
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103 INTRODUCTION
104 Hybrid insulators consist of an insulating core, bearing the mechanical load protected by a
105 polymeric housing, the load being transmitted to the core by end fittings. Despite these
106 common features, the materials used and the construction details employed by different
107 manufacturers may be quite different. The core is made of ceramic or glass material.
108 Hybrid insulators are applied as overhead line, post or hollow core equipment insulators. In
109 order to perform the design tests, IEC 62217 shall be applied for the polymeric housing and
110 the interfaces between core and the housing. For the core, the test standards for the
111 respective ceramic product (IEC 60168, IEC 60383-1/-2 and IEC 62155) shall be applied.
112 Some tests have been grouped together as "design tests", to be performed only once on
113 insulators which satisfy the same design conditions. For all design tests of hybrid insulators,
114 the common clauses defined in IEC 62217 are applied. As far as practical, the influence of
115 time on the electrical and mechanical properties of the components (core material, housing,
116 interfaces etc.) and of the complete hybrid insulators has been considered in specifying the
117 design tests to ensure a satisfactory life-time under normally known stress conditions in
118 service.
119 Polymeric housing materials that show the hydrophobicity transfer mechanism (HTM) are
120 preferred for hybrid insulators. They are applied as a countermeasure against severe polluted
121 service conditions.
122 Pollution tests according to IEC 60507 or IEC 61245 are not included in this standard since
123 they are designed for non-polymeric items. Specific pollution tests for polymeric insulators are
124 still under consideration.
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126 HYBRID INSULATORS FOR AC AND DC HIGH-VOLTAGE APPLICATIONS
127 GREATER THAN 1000 V AC, and 1500 V DC – DEFINITIONS, TEST
128 METHODS
129 AND ACCEPTANCE CRITERIA
133 1 Scope
134 This document applies to hybrid insulators for AC and DC applications greater than 1000 V
135 AC and 1500 V DC consisting of a load-bearing insulating solid or hollow core consisting of
136 ceramic or glass, a housing (defined geometry, outside the insulating core) made of polymeric
137 material and end fittings permanently attached to the insulating core.
138 Hybrid insulators covered by this document are intended for use as suspension/tension long
139 rod and cap and pin type insulators, line post insulators, station post insulators and hollow
140 core insulators for apparatus.
141 The object of this document is to:
142 • define the terms used;
143 • prescribe test methods;
144 • prescribe acceptance criteria.
145 Silicone or other functional coatings (CIGRE Technical Brochure No. 478), booster sheds,
146 shed extenders and rain deflectors are not within the scope of this document. CIGRE
...