1、Composite hollow core station post insulators for substations with a.c. voltage greater than1 000 V and d.c. voltage greater than 1 500 V D efinitions, test methods and acceptance criteriaBS EN 62772:2016BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewo
2、rdThis British Standard is the UK implementation of EN 62772:2016. It is identical to IEC 62772:2016.The UK participation in its preparation was entrusted to TechnicalCommittee PEL/36, Insulators for power systems.A list of organizations represented on this committee can be obtained onrequest to its
3、 secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 77553 6ICS 29.080.10Compliance with a British Standard ca
4、nnot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62772:2016EUROPEAN STANDARD NORME EUROPENNE EUROP
5、ISCHE NORM EN 62772 November 2016 ICS 29.080.10 English Version Composite Hollow Core Station Post Insulators for substations with a.c. voltage greater than 1000 V and d.c. voltage greater than 1500V- Definitions, test methods and acceptance criteria (IEC 62772:2016) Isolateurs supports composites c
6、reux pour postes prsentant une tension alternative suprieure 1 000 V et une tension continue suprieure 1 500 V - Dfinitions, mthodes dessai et critres dacceptation (IEC 62772:2016) Hohlkern-Verbundsttzinsolatoren fr Schaltanlagen mit Wechsel - und Gleichspannung ber 1 000 V - Begriffe, Prfverfahren
7、und Annahmekriterien (IEC 62772:2016) This European Standard was approved by CENELEC on 2016-09-21. 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.
8、 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 b
9、y 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 Repu
10、blic, 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.
11、European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worl
12、dwide for CENELEC Members. Ref. No. EN 62772:2016 E BS EN 62772:2016EN 62772:2016 2 European foreword The text of document 36/386/FDIS, future edition 1 of IEC 62772, prepared by IEC/TC 36 “Insulators“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62772:2016. The follo
13、wing dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2017-06-21 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2019-09-21 Attentio
14、n 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 62772:2016 was approved by CENEL
15、EC 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 60068-2-17 NOTE Harmonized as EN 60068-2-17. IEC 62155 NOTE Harmonized as EN 62155. ISO 1101 NOTE Harmonized as EN ISO 1101. BS EN 6277
16、2:2016EN 62772:2016 3 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
17、 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 t
18、he latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60060-1 2010 High-voltage test techniques - Part 1: General definitions and test requirements EN 60060-1 2010 IEC 60168 2001 Tests on indoor and outdoor post ins
19、ulators of ceramic material or glass for systems with nominal voltages greater than 1000 V - - IEC 61109 2008 Insulators for overhead lines - Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria E
20、N 61109 2008 IEC 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 EN 61462 2007 IEC 62217 2012 Polymeric HV insulators
21、for indoor and outdoor use - General definitions, test methods and acceptance criteria EN 62217 2013 IEC 62231 2006 Composite station post insulators for substations with a.c. voltages greater than 1 000 V up to 245 kV - Definitions, test methods and acceptance criteria EN 62231 2006 BS EN 62772:201
22、6 2 IEC 62772:2016 IEC 2016 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative references. 7 3 Terms and definitions 8 4 Identification and marking 12 5 Environmental conditions . 12 6 Information on transport, storage and installation . 12 7 Classification of tests . 12 7.1 General . 12 7
23、.2 Design tests 13 7.3 Type tests . 13 7.4 Sample tests . 13 7.5 Routine tests . 13 8 Design tests 14 8.1 General . 14 8.2 Tests on interfaces and connections of end fittings 15 8.2.1 General . 15 8.2.2 Test specimens 15 8.2.3 Reference dry power frequency test . 15 8.2.4 Thermal mechanical pre-stre
24、ssing test 15 8.2.5 Water immersion pre-stressing test 15 8.2.6 Verification tests 15 8.3 Assembled core load tests . 16 8.3.1 Test for the verification of the maximum design cantilever load (MDCL) 16 8.3.2 Test for the verification of the maximum design torsion load (MDToL) . 16 8.3.3 Verification
25、of the specified tension load (STL) . 17 8.4 Tests on shed and housing material . 18 8.4.1 General . 18 8.4.2 Tracking and erosion test . 18 8.4.3 Flammability test 18 8.5 Tests on the tube material . 18 8.5.1 General . 18 8.5.2 Dye penetration test . 18 8.5.3 Water diffusion test 18 9 Type tests .
26、18 9.1 Internal pressure test 18 9.2 Bending test 18 9.3 Specified tension load test, compression and buckling withstand load test 19 9.4 Electrical tests 19 9.5 Wet switching impulse withstand voltage . 19 10 Sample tests . 19 11 Routine tests . 19 11.1 General . 19 11.2 Routine seal leak rate test
27、 . 19 BS EN 62772:2016IEC 62772:2016 IEC 2016 3 11.3 Test procedure 19 11.4 Acceptance criteria . 19 12 Documentation 20 Annex A (informative) Water diffusion test 21 Bibliography . 22 Figure A.1 Example of sample preparation for water diffusion test . 21 Table 1 Required design and type tests 14 BS
28、 EN 62772:2016 4 IEC 62772:2016 IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ COMPOSITE HOLLOW CORE STATION POST INSULATORS FOR SUBSTATIONS WITH A.C. VOLTAGE GREATER THAN 1 000 V AND D.C. VOLTAGE GREATER THAN 1 500 V DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA FOREWORD 1) The Internatio
29、nal 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
30、 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; an
31、y 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 Standard
32、ization (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 repre
33、sentation 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
34、 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 public
35、ations. 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
36、, 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 includin
37、g 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
38、 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 eleme
39、nts 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 62772 has been prepared by IEC technical committee 36: Insulators. The text of this standard is based on the following document
40、s: FDIS Report on voting 36/386/FDIS 36/389/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. BS EN 62772:2016IEC 62772:2016 IEC
41、2016 5 The committee has decided that the contents of this 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
42、a revised edition, or amended. BS EN 62772:2016 6 IEC 62772:2016 IEC 2016 INTRODUCTION Composite hollow core station post insulators consist of an insulating hollow core (tube), bearing the mechanical load protected by a polymeric housing, the load being transmitted to the core by end fittings. The
43、hollow core is filled entirely with an insulating material. The core is made of resin impregnated fibres. Composite hollow core station post insulators are typically applied as post insulators in substations. In order to perform the design tests, IEC 62217 is to be applied for materials and interfac
44、es of the insulator. 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 on composite hollow core station post insulators, the common clauses defined in IEC 62217 are applied. As far as practi
45、cal, the influence of time on the electrical and mechanical properties of the components (core material, housing, interfaces etc.) and of the complete composite hollow core station post insulator has been considered in specifying the design tests to ensure a satisfactory life-time under normally kno
46、wn stress conditions in service. This standard relates to IEC 61462, 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, as well as IEC
47、62231, Composite station post insulators for substations with a.c. voltages greater than 1 000 V up to 245 kV Definitions, test methods and acceptance criteria. Tests and requirements described in IEC 62231 can be used although this standard has no voltage limit. The use of polymeric housing materia
48、ls that show hydrophobicity and hydrophobicity transfer mechanism (HTM) is preferred for composite hollow core station post insulators. This is due to the fact that the influence of diameter can be significant for hydrophilic surfaces (see also IEC 60815-3). For instance silicone rubber is recognize
49、d as successful countermeasure against severe polluted service conditions. The ageing performance of the polymeric housing can be evaluated by the salt fog test standardized in IEC 62217. For the time being, no test is defined to quantify the HTM, but CIGRE SC D.1 deals with this subject intensively and Technical Brochure No. 442 is available for the evaluation of the retention of the hydrophobicity. BS EN 62772:2016IEC 62772:2016 IEC 2016 7 COMPOSITE HOLLOW CORE STATION POST INSULA
