1、SIiDwBSI BS EN bUbbO-ENGL 2nO E Lb2Ybb 0851870 392111 BRITISH STANDARD Insulators - Tests on indoor post insulators of organic material for systems with nominal voltages greater than 1 kVup to but not including 300 kV The European Standard EN 60660:1999 has the status of a British Standard ICs 29.08
2、0.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW 5s EN i0660:ZOOO EC 50660: 1999 National foreword direction of the Electrotecluucai Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 2000 Amd. No. This British S
3、tandard is the official English language version of EN 606601999. It is identical with IEC 60660: 1999. The TJK participation in its preparation was entrusted by Technical Committee PEY36, Insulators for power systems, to Subcommittee PEL/36/3, Sub-station insulators, which has the responsibility to
4、: - aid enquirers to understand the text; - present to the responsible intemationaVEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; - monitor related international and European developments and promulgate them in the UK. A list of o
5、rganizations represented on this subcommittee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For innstance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numberi
6、ng system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists nonnative references to international publications with their corresponding European publications. The
7、British Standards which implement these international or European publications may be found in the ES1 Standasds Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not
8、 purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Date Comments Summary of pages This document comprises a front cover
9、, an inside front cover, the EN title page, pages 2 to 25, two annex ZA pages and a back cover. The ES1 copyright notice displayed in this document indicates when the document was last issued. O BSI M20 ISBN O 580 34911 X STD=BSI BS EN bObbO-ENGL 2000 lib24bb9 0851872 Lb5 EUROPEAN STANDARD NORME EUR
10、OPEENNE EUROPISCHE NORM EN 60660 December 1999 ICs 29.080.1 O English version Insulators Tests on indoor post insulators of organic material for systems with nominal voltages greater than 1 kV up to but not including 300 kV (IEC 60660: 1 999) Isolateurs Isolatoren Essais des supports isolants dintri
11、eur en matire organique destins des installations de tension nominale suprieure I kV jusqu 300 kV non compris (CE1 60660: 1 999) Prfungen an Innenraum-Stutzern aus organischem Werkstoff fr Netze mit Nennspannungen ber 1 kV bis kleiner 300 kV (IEC 60660: I 999) This European Standard was approved by
12、CENELEC on 1999-1 2-01. CENELEC members are bound to comply with the CENKENELEC 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 sta
13、ndards may be obtained on application to the Central Secretariat 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 no
14、tified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Swed
15、en, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 1999 CENELEC - All rights of exploitation in
16、 any form and by any means resewed worldwide for CENELEC members. Ref. No. EN 60660:1999 E Page 2 EN 60660:1999 Foreword The text of document 36C/11 l/FDIS, future edition 2 of IEC 60660, prepared by SC 36C, Insulators for substations, of IEC TC 36, Insulators, was submitted to the IEC-CENELEC paral
17、lel vote and was approved by CENELEC as EN 60660 on 1999-1 2-01, The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2000-09-0 1 - latest date by which the national standards co
18、nflicting with the EN have to be withdrawn (dow) 2002-1 2-01 Endorsement notice The text of the International Standard IEC 60660:1999 was approved by CENELEC as a European Standard without any modification. - STD-BSI BS EN bObbO-ENGL 2000 II 1b24bbS 0851874 T38 W Page 3 EN 60660:1999 CONTENTS Page C
19、lause 1 General . 4 1.1 Scope and object 4 1.2 Normative references 4 1.3 Definitions 5 1.4 1.5 Documentation 8 1.6 Normal service conditions . 8 General requirements for tests . 8 2.1 2.2 Quality assurance . 9 2.3 General requirements for electrical tests 9 2.4 Lightning impulse voltage tests 10 2.
20、5 Power-frequency voltage tests . 10 2.6 Standard reference atmospheric conditions for tests 10 2.7 3 Type tests 10 3.1 General 10 3.2 3.3 Dry lightning impulse withstand voltage test . 13 3.4 3.5 Partial discharge extinction voltage test . 14 3.6 3.7 Mechanical failing load test . 15 3.8 3.9 lest f
21、or mechanical bending strength as a function of temperature . 16 3.1 1 3.12 Flammability test . 18 3.13 Temperature cycle test 18 4 Sample tests 19 Verification of dimensions . 20 5 Routine tests . 21 5.2 Visual examination 21 5.3 5.4 Values which characterise a post insulator of organic material .
22、7 2 Classification of tests 8 Correction factors for atmospheric conditions 10 General requirements for electrical type tests 12 Dry power-frequency withstand voltage test . 14 Lightning impulse puncture test . 14 Test for deflection under load at normal ambient temperature conditions 16 3.1 O Water
23、 absorption test 18 Ageing and humidity test . 18 4.1 General 19 4.3 Re-test procedure . 20 5.1 General 21 Mechanical routine test . 21 Electrical routine test and partial discharge measurement 22 4.2 Annex A (informative) Tolerances of form and position 23 Annex ZA (normative) Normative refererence
24、s to international publications with their corresponding European publications . 26 BSI 06-2000 STD=BSI BS EN bObbO-ENGL 2000 M Lb2Vbb9 0853875 97V M Page 4 EN 60660:1999 INSULATORS - TESTS ON INDOOR POST INSULATORS OF ORGANIC MATERIAL FOR SYSTEMS WITH NOMINAL VOLTAGES GREATER THAN 1 O00 V UP TO BUT
25、 NOT INCLUDING 300 kV I General 1.1 Scope and object This International Standard is applicable to post insulators of organic material for indoor service in electrical installations or equipment operating in air at atmospheric pressure on alternating current with a nominal voltage greater than 1 O00
26、V up to, but not including, 300 kV, as defined by range I of IEC 60071-1, and a frequency not greater than 100 Hz. Composite insulators are not covered by this standard. The object of this standard is - to define the terms used; - to define electrical and mechanical characteristics of post insulator
27、s of organic material and to prescribe the conditions under which the specified values of these characteristics are verified; - to prescribe methods of testing; - to prescribe acceptance criteria. This standard does not give numerical values for insulator characteristics; nor does it deal with a cho
28、ice of insulators for specific operating conditions. IEC 60273 specifies numerical values for electrical and mechanical characteristics and gives the dimensions necessary for inter-changeability of post insulators. 1.2 Normative references The following normative documents contain provisions which,
29、through reference in this text, constitute provisions of this part of the ISO/IEC Directives. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of the ISO/IEC Directives are encouraged to investi
30、gate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and IS0 maintain registers of currently valid International Standards. IEC 60050(471):1984, I
31、nternational Electrotechnical Vocabulary (IEV) - Chapter 471: insulators IEC 60060-1 , High-voltage test techniques - Part I: General definitions and test requirements IEC 60071 -1, Insulation co-ordination - Part I: Definitions, principles and rules IEC 60270, Partial discharge measurements IEC 602
32、73, Characteristics of indoor and outdoor post insulators for systems with nominal voltages greater than I 000 V IEC 60587, Test method for evaluating resistance to tracking and erosion of electrical insulating materials used under severe ambient conditions BSI 06-2000 STD-BSI BS EN bObbO-ENGL 2000
33、Lb24bb9 085187b 800 M Page 6 EN 60660:1999 IEC 60695-1 1-10:1999, Fire hazard testing - Part 77-70: Test flames - 50 W horizontal and vertical flame test methods IEC 60932, Additional requirements for enclosed switchgear and controlgear from 7 kV to 72,5 kV to be used in severe climatic conditions I
34、S0 9000-1, Quality management and quality assurance standards - Part 7: Guidelines for selection and use IS0 9002, Quality systems - Model for quality assurance in production, installation and servicing 1.3 Definitions For the purpose of this standard, the following definitions apply, together with
35、those in IEC 60050(471) NOTE - The definitions regarding test voltages are given for convenience. For additional details, see IEC 60060-1 1.3.1 post insulator of organic material post insulator intended to give rigid support to a live part which is to be insulated from earth and from another live pa
36、rt. The whole or part of the material composing the post insulator consists of organic materials, .e. of material pertaining to the chemistry of the compounds produced from carbon or to the chemistry of the compounds produced from carbon and silicon. These organic materials may be used alone or in c
37、onjunction with other materials (mineral or organic) as fillers, reinforcements, etc. 1.3.2 indoor post insulator a post insulator not intended to be exposed to outdoor atmospheric conditions. For indoor installations subject to excessive condensation, outdoor post insulators or special indoor post
38、insulators may be used IEV 471-04-04, modified 1.3.3 design category post insulators of organic materials are divided into two different design categories according to their construction. The design categories covered by this standard are: Design category A Cylindrical post insulators with internal
39、metal fittings in which the length of the shortest puncture path through solid insulating material is equal to or greater than one-third the external arcing distance between the metal fittings Design category B Cylindrical post insulators with internal metal fittings in which the length of the short
40、est puncture path through solid insulating material is less than one-third the external arcing distance between the metal fittings NOTE - The term “cylindrical insulators” is intended to cover insulators of the truncated conical form. BSI 06-2000 Page 6 EN 60660:1999 1.3.4 lot group of insulators of
41、fered for acceptance from the same manufacturer, of the same design and manufactured under similar conditions of production. One or more lots may be offered together for acceptance; the lot(s) offered may consist of the whole, or part, of the quantity o rd ered 1.3.5 flashover disruptive discharge e
42、xternal to the insulator, and over its surface, connecting those parts which normally have the operating voltage between them. The term “flashover“ used in this standard includes flashover across the insulator surface as well as disruptive discharges by sparkover through air adjacent to the insulato
43、r IEV 471-01-12, modified 1.3.6 puncture a disruptive discharge passing through the solid insulating material of the insulator which produces a permanent loss of dielectric strength A fragment breaking away from the rim of a shed or damage to the insulator due to the heat of the surface discharge is
44、 not considered as a puncture IEV 471-01-1 I, modified 1.3.7 dry lightning impulse withstand voltage lightning impulse voltage which the dry post insulator withstands under the prescribed conditions of test 1.3.8 50 % dry lightning impulse flashover voltage value of the lightning impulse voltage whi
45、ch has a 50 % probability of producing flashover on the dry post insulator under the prescribed conditions of test 1.3.9 dry power-frequency withstand voltage power-frequency voltage which the dry post insulator withstands under the prescribed conditions of test 1.3.1 O dry power-frequency flashover
46、 voltage arithmetic mean value of the measured voltages which cause flashover on the dry post insulator under the prescribed conditions of test 1.3.1 1 mechanical failing load maximum load reached when an organic insulator is tested under the prescribed conditions of test 1.3.12 creepage distance sh
47、ortest distance along the contours of the external surfaces of the insulating parts of the post insulator between those parts which normally have the operating voltage between them. However, to take account of the metal fittings attached to the post insulator, the distance which in service condition
48、s is covered by metal fittings is not included in the creepage distance O BSI 06-2000 STD-BSI BS EN bbb-ENGL 2000 Lb2qbb7 0851I378 b83 M Page 7 EN 60660:1999 NOTE 1 - If high-resistance coatings are applied to parts of the post insulators, such coatings are considered as effective creepage surfaces
49、and the distance over them is included in the creepage distance. NOTE 2 - The surface resistivity of such high-resistance coatings is usually about lo6 R but may be as low as 10 R. NOTE 3 - If high-resistance coatings are applied to the whole surface of the post insulator (the so-called stabilized insulator), the questions of surface resistivity and creepage distance is subject to agreement between the manufacturer and the purchaser. NOTE 4 - The creepage distance is normally not specified. 1.3.13 specified characteristic -
