EN IEC 61462:2023

Composite hollow insulators - Pressurized and unpressurized insulators for use in electrical equipment with AC rated voltage greater than 1 000 V AC and D.C. voltage greater than 1500V - Definitions, test methods, acceptance criteria and design recommendations

This International Standard applies to composite hollow insulators consisting of a load-bearing insulating tube made of resin impregnated fibres, a housing (outside the insulating tube) made of elastomeric material (for example silicone or ethylene-propylene) and metal fixing devices at the ends of the insulating tube. Composite hollow insulators as defined in this standard are intended for general use (unpressurized) or for use with a permanent gas pressure (pressurized). They are intended for use in both outdoor and indoor electrical equipment operating on alternating current with a rated voltage greater than 1 000 V a.c. and a frequency not greater than 100 Hz or for use in direct current equipment with a rated voltage greater than 1 500 V d.c. The object of this standard is: - to define the terms used; - to prescribe test methods; - to prescribe acceptance criteria. Hollow insulators are integrated into electrical equipment which is electrically type tested as required by the applicable equipment standard. So, it is not the object of this standard to prescribe dielectric type tests because the withstand voltages and flashover behaviour are not characteristics of the hollow insulator itself but of the apparatus of which it ultimately forms a part. All the tests in this standard, apart from the thermal-mechanical test, are performed at normal ambient temperature. This standard does not prescribe tests that may be characteristic of the apparatus of which the hollow insulator ultimately forms a part. Composite hollow insulators are intended for use in electrical equipment, such as, but not limited to: - HV circuit-breakers, - switch-disconnectors, - disconnectors, - station posts, - disconnecting circuit breakers, - earthing switches, - instrument- and power transformers, - bushings, - cable terminations. Additional testing defined by the relevant IEC equipment standard may be required.

Verbundhohlisolatoren - Druckbeanspruchte und drucklose Isolatoren für den Einsatz in elektrischen Betriebsmitteln mit einer Bemessungsspannung über 1 000 V AC und 1 500 V DC - Begriffe, Prüfverfahren, Annahmekriterien und Konstruktionsempfehlungen

Isolateurs composites creux - Isolateurs avec ou sans pression interne pour utilisation dans des appareillages électriques de tensions alternatives assignées supérieures à 1 000 V et de tensions continues supérieures à 1 500 V - Définitions, méthodes d’essai, critères d’acceptation et recommandations de conception

L'IEC 61462:2023 s’applique aux isolateurs composites creux qui sont constitués d’un tube isolant supportant la charge mécanique constitué de fibres imprégnées de résine, protégé par un revêtement en élastomère (par exemple silicone ou éthylène-propylène) et de pièces métalliques fixées à ses extrémités (voir des exemples à la Figure D.1 et à la Figure D.2). Le présent document a pour objet de définir les termes employés; de spécifier les méthodes d’essai; de spécifier les critères d’acceptation. Le présent document fait la distinction entre les essais de conception et les essais de type puisqu’une conception et une combinaison de matériaux données peuvent être utilisées pour différents types d’isolateurs. Dans ce cas, les résultats des essais de conception peuvent être considérés valables pour les différents types d’isolateurs. Cette nouvelle édition annule et remplace l’édition précédente parue en 2007. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente: a) modifications des termes et définitions; b) modifications des procédures d’essai incluses dans l’IEC TR 62039 et l’IEC 62217 (essai de transfert d’hydrophobicité; essai de pénétration d’eau sur noyau avec revêtement); c) modification de l’Article 8 (essais de type) pour refléter la pratique courante et pour prendre également en compte les isolateurs à tube conique; d) modification de l’ordre des étapes de l’essai sur prélèvements mécanique (9.4) en choisissant l’essai d’étanchéité comme dernière étape; e) harmonisation du Tableau 3 (essais à réaliser après modifications de conception) avec d’autres normes de produit; g) ajout d’une nouvelle Annexe D informative: Schéma de principe descriptif des isolateurs creux; f) ajout d’une nouvelle Annexe E informative: Essais de type réalisés sur des isolateurs à tube conique.

Votli kompozitni izolatorji - Izolatorji z in brez notranjega nadtlaka za električno opremo z naznačeno izmenično napetostjo nad 1000 V in enosmerno napetostjo nad 1500 V - Definicije, preskusne metode, merila sprejemljivosti in priporočila za načrtovanje (IEC 61462:2023)

Ta mednarodni standard se uporablja za votle kompozitne izolatorje, sestavljene iz nosilne izolacijske cevi iz vlaken, impregniranih s smolo, ohišja (na zunanji strani izolacijske cevi) iz polimernega materiala (npr. iz silikona ali etilen-propilena) in kovinskih pritrdil ob koncih izolacijske cevi. Votli kompozitni izolatorji, kot so opredeljeni v tem standardu, niso namenjeni splošni uporabi (ki ni pod tlakom) ali uporabi s stalnim tlakom plina (pod tlakom). Namenjeni so za uporabo tako v zunanji kot notranji električni opremi, ki deluje z izmeničnim tokom z izmenično nazivno napetostjo, večjo od 1000 V in frekvenco največ 100 Hz, ali za uporabo v opremi z enosmernim tokom in nazivno enosmerno napetostjo, večjo od 1500 V.
Namen tega standarda je:
– definirati uporabljene izraze;
– določiti preskusne metode;
– določiti merila sprejemljivosti.
Votli izolatorji so vgrajeni v električno opremo, ki je električno tipsko preskušena, kot to zahteva veljavni standard za opremo. Zato ni predmet tega standarda, da predpiše tipske dielektrične preskuse, saj udarne napetosti in trdnost in preskoki niso značilni za same votle izolatorje, ampak za aparat, katerega del je votli izolator.
Vsi preskusi v okviru tega standarda, razen toplotno-mehanskega preskusa, se izvajajo pri običajni temperaturi okolja. Ta standard ne določa preskusov, ki so morda značilni za napravo, katere del je votli izolator.
Votli kompozitni izolatorji so namenjeni za uporabo v električni opremi, kar med drugim vključuje:
– visokonapetostne odklopnike,
– stikala/ločilna stikala,
– ločilnike,
– postajne izolatorje,
– odklopne odklopnike,
– ozemljitvena stikala,
– merilne in močnostne transformatorje,
– uvodnice,
– kabelske zaključke.
Dodatno preskušanje, ki je opredeljeno v zadevnem standardu IEC za opremo, je lahko potrebno.

General Information

• Status: Published
• Publication Date: 12-Oct-2023
• ICS: 29.080.10 - Insulators
• Technical Committee: CLC/SR 36 - Insulators for substations
• Drafting Committee: IEC/TC 36 - IEC_TC_36
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 13-Oct-2023
• Completion Date: 13-Oct-2023
• Ref Project: SIST EN IEC 61462:2024 - Composite hollow insulators - Pressurized and unpressurized insulators for use in electrical equipment with AC rated voltage greater than 1 000 V AC and D.C. voltage greater than 1500V - Definitions, test methods, acceptance criteria and design recommendations (IEC 61462:2023)

Relations

• Replaces: EN 61462:2007 - Composite hollow insulators - Pressurized and unpressurized insulators for use in electrical equipment with rated voltage greater than 1 000 V - Definitions, test methods, acceptance criteria and design recommendations
• Effective Date: 12-Jan-2021

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2024
Votli kompozitni izolatorji - Izolatorji z in brez notranjega nadtlaka za električno
opremo z naznačeno izmenično napetostjo nad 1000 V in enosmerno napetostjo
nad 1500 V - Definicije, preskusne metode, merila sprejemljivosti in priporočila za
načrtovanje (IEC 61462:2023)
Composite hollow insulators - Pressurized and unpressurized insulators for use in
electrical equipment with AC rated voltage greater than 1 000 V AC and D.C. voltage
greater than 1500V - Definitions, test methods, acceptance criteria and design
recommendations (IEC 61462:2023)
Verbundhohlisolatoren - Druckbeanspruchte und drucklose Isolatoren für den Einsatz in
elektrischen Betriebsmitteln mit einer Bemessungsspannung über 1 000 V AC und 1 500
V DC - Begriffe, Prüfverfahren, Annahmekriterien und Konstruktionsempfehlungen (IEC
61462:2023)
Isolateurs composites creux - Isolateurs avec ou sans pression interne pour utilisation
dans des appareillages électriques de tensions alternatives assignées supérieures à 1
000 V et de tensions continues supérieures à 1 500 V - Définitions, méthodes d’essai,
critères d’acceptation et recommandations de conception (IEC 61462:2023)
Ta slovenski standard je istoveten z: EN IEC 61462:2023
ICS:
29.080.10 Izolatorji Insulators
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61462

NORME EUROPÉENNE
EUROPÄISCHE NORM October 2023
ICS 29.080.10 Supersedes EN 61462:2007
English Version
Composite hollow insulators - Pressurized and unpressurized
insulators for use in electrical equipment with AC rated voltage
greater than 1 000 V AC and D.C. voltage greater than 1500V -
Definitions, test methods, acceptance criteria and design
recommendations
(IEC 61462:2023)
Isolateurs composites creux - Isolateurs avec ou sans Verbundhohlisolatoren - Druckbeanspruchte und drucklose
pression interne pour utilisation dans des appareillages Isolatoren für den Einsatz in elektrischen Betriebsmitteln mit
électriques de tensions alternatives assignées supérieures einer Bemessungsspannung über 1 000 V AC und 1 500 V
à 1 000 V et de tensions continues supérieures à 1 500 V - DC - Begriffe, Prüfverfahren, Annahmekriterien und
Définitions, méthodes d'essai, critères d'acceptation et Konstruktionsempfehlungen
recommandations de conception (IEC 61462:2023)
(IEC 61462:2023)
This European Standard was approved by CENELEC on 2023-10-11. 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, 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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61462:2023 E
European foreword
The text of document 36/567/FDIS, future edition 2 of IEC 61462, 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) 2024-07-11
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-10-11
document have to be withdrawn
This document supersedes EN 61462:2007 and all of its amendments and corrigenda (if any).
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 61462:2023 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 60060-1 NOTE Approved as EN 60060-1
IEC 60507 NOTE Approved as EN 60507
IEC 62271-1 NOTE Approved as EN 62271-1
IEC 62271-100 NOTE Approved as EN IEC 62271-100
IEC 60068-2-17 NOTE Approved as EN IEC 60068-2-17
IEC 60168 NOTE Approved as EN 60168
ISO 1101 NOTE Approved as EN ISO 1101
ISO 11357-2:2020 NOTE Approved as EN ISO 11357-2:2020 (not modified)
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 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/TR 62039 - Selection guide for polymeric materials for - -
outdoor use under HV stress
IEC 61462 ®
Edition 2.0 2023-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Composite hollow insulators – Pressurized and unpressurized insulators for use

in electrical equipment with AC rated voltage greater than 1 000 V AC and D.C.

voltage greater than 1500V – Definitions, test methods, acceptance criteria and

design recommendations
Isolateurs composites creux – Isolateurs avec ou sans pression interne pour

utilisation dans des appareillages électriques de tensions alternatives assignées

supérieures à 1 000 V et de tensions continues supérieures à 1 500 V –

Définitions, méthodes d’essai, critères d’acceptation et recommandations de

conception
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.080.10  ISBN 978-2-8322-7403-3

– 2 – IEC 61462:2023 © IEC 2023
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 9
4 Relationships of mechanical loads . 13
4.1 Loads from outside the insulator . 13
4.2 Pressures . 13
5 Marking . 14
6 Classification of tests. 14
6.1 General . 14
6.2 Design tests . 14
6.3 Type tests . 16
6.4 Sample tests . 16
6.5 Routine tests. 16
7 Design tests . 17
7.1 General . 17
7.2 Tests on interfaces and connections of end fittings . 17
7.2.1 General . 17
7.2.2 Test specimen . 17
7.2.3 Reference disruptive – discharge dry power frequency test . 17
7.2.4 Thermal-mechanical pre-stressing test . 17
7.2.5 Water immersion pre-stressing test . 18
7.2.6 Verification tests . 18
7.3 Tests on shed and housing material . 19
7.3.1 Hardness test . 19
7.3.2 Accelerated weathering test . 19
7.3.3 Tracking and erosion test – 1000 h salt fog AC voltage test . 19
7.3.4 Flammability test . 19
7.3.5 Hydrophobicity transfer test . 19
7.4 Tests on the tube material . 19
7.4.1 General . 19
7.4.2 Porosity test (Dye penetration test) . 20
7.4.3 Water diffusion test . 20
7.5 Water diffusion test on core with housing . 20
8 Type tests (only mechanical tests) . 20
8.1 General . 20
8.2 Test specimens . 20
8.3 Preparation of the test specimen . 21
8.4 Internal pressure test . 22
8.4.1 General . 22
8.4.2 Test procedure . 22
8.4.3 Acceptance criteria . 23
8.5 Bending test . 23
8.5.1 General . 23
8.5.2 Test procedure . 23

IEC 61462:2023 © IEC 2023 – 3 –
8.5.3 Acceptance criteria . 24
9 Sample tests . 24
9.1 Selection and number of insulators . 24
9.2 Testing . 25
9.3 Verification of dimensions
...