《BS-EN-50062-1992.pdf》由会员分享,可在线阅读,更多相关《BS-EN-50062-1992.pdf(22页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 50062:1992 Specification for Ceramic pressurized hollow insulators for high-voltage switchgear and controlgear The European Standard EN 50062:1991 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled
2、Copy, (c) BSI BS EN 50062:1992 This British Standard, having been prepared under the direction of the Power Electrical Engineering Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 28 February 1992 BSI 11-1999 The following BSI references r
3、elate to the work on this standard: Committee reference PEL/92 Draft for comment 86/30829 DC ISBN 0 580 20372 7 Cooperating organizations The European Committee for Electrotechnical Standardization (CENELEC), under whose supervision this European Standard was prepared, comprises the national committ
4、ees of the following countries. AustriaItaly BelgiumLuxembourg DenmarkNetherlands FinlandNorway FrancePortugal GermanySpain GreeceSweden IcelandSwitzerland IrelandUnited Kingdom Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 G
5、MT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50062:1992 BSI 11-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 Normative references2 Text of EN 500625 National annex NA (informative) Committees responsibleInside back cover National annex NB (informati
6、ve) Cross-referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50062:1992 ii BSI 11-1999 National foreword This British Standard has been prepared under the direction of the Power Electrical Engineering Standards
7、 Policy Committee and is the English language version of EN 50062:1991 “Ceramic pressurized hollow insulators for high-voltage switchgear and controlgear”, published by the European Committee for Electrotechnical Standardization (CENELEC). National annex NA gives the constitution of the committees r
8、esponsible for UK participation in the preparation of this standard. National annex NB gives details of International Standards quoted in this standard for which there is an identical or technically equivalent British Standard. A British Standard does not purport to include all the necessary provisi
9、ons 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. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page,
10、 pages 2 to 16, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006
11、, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50062 October 1991 UDC 621.315.623.7-033.65:621.316.54.027.3 Descriptors: Enclosure, high-voltage switching device, H.V. insulation-enclosed switchgear and controlgear, pressurized enclosure, ceramic, metallic fitting,
12、 ground part, roughness English version Ceramic pressurized hollow insulators for high-voltage switchgear and controlgear Enveloppes isolantes sous pression en matire cramique pour lappareillage haute tension Druckbeanspruchte Hohlisolatoren aus keramischen Material fr Hochspannungs-Schaltgerte und
13、Schaltanlagen This European Standard was approved by CENELEC on 1990-06-11. 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 bi
14、bliographical references concerning such national standards 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 responsibi
15、lity of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Nethe
16、rlands, Norway, Portugal, Spain, Sweden, 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 1991 Copy
17、right reserved to CENELEC members Ref. No. EN 50062:1991 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50062:1991 BSI 11-1999 2 Foreword This European standard has been prepared by CENELEC Technical Committee 17A: High-voltage switchg
18、ear and controlgear. Drafts were discussed in meetings held in Paris (September 1987) and in Brussels (June 1989). The text of this standard was approved by CENELEC on 11 June 1990. The following dates were fixed: For products which have complied with the relevant national standard before 1992-04-15
19、, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 1997-04-15. The present EN has been established to specify the design, construction, testing, inspection and certification of pressurized hollow insulators intended for use in
20、 electrical equipment when they are fitted with their fixing devices and subject, in operation, to an internal gas pressure. Thus, this standard supplements IEC 233: Tests on hollow insulators for use in electrical equipment. It complies too, from this point of view, with EEC Directive 76/767 clause
21、 2 “Pressure vessels and methods for inspecting them. General Directive”. This EN contains three informative annexes: Annex A: Tolerances of form and position Annex B: Bending moment equivalent to the design pressure Annex C: A-deviations Normative references This European Standard incorporates by d
22、ated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standar
23、d only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. When the international publication has been modified by CENELEC common modifications, indicated by (mod), the relevant EN/HD applies. latest date of publication
24、of an identical national standard:1992-04-15 latest date of withdrawal of conflicting national standards:1992-04-15 IEC 56 (mod):1987 High-voltage alternating-current circuit-breakers HD 348 S3:1989 IEC 168:1988Tests on indoor and outdoor post insulators of ceramic material or glass for systems with
25、 nominal voltages greater than 1 000 V IEC 233:1974Tests on hollow insulators for use in electrical equipment HD 329 S1:1978 IEC 273:1979Dimensions of indoor and outdoor post insulators and post insulator units for systems with nominal voltages greater than 1 000 V IEC 672:1984 Part 3 Specification
26、for ceramics and glass insulating materials Part 3: Individual materials HD 426.3 S1:1987 IEC 694 (mod):1980 Common clauses for high-voltage switchgear and controlgear standards HD 448 S2:1989 ISO 1101:1983Technical drawings Geometrical tolerancing. Tolerancing of form, orientation, location and run
27、-out. Generalities, definitions, symbols. Examples of indication and interpretation. ISO 4287-1: 1984 Surface roughness Terminology Part 1: Surface and its parameters ISO 4287-2: 1984 Surface roughness Terminology Part 2: Measurement of surface roughness parameters Licensed Copy: sheffieldun sheffie
28、ldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50062:1991 BSI 11-19993 Contents Page Foreword2 1General5 1.1Scope5 1.2Object5 1.3Definitions5 1.4Marking6 2General recommendations for design and construction6 2.1Purpose6 2.2Rules for design6 3General requirements for test
29、7 3.1Classification of tests7 3.2General requirements for pressure tests7 3.3General requirements for bending tests7 4Type tests8 4.1General8 4.2Pressure test8 4.3Bending test8 5Sample tests9 5.1Selection and number of test pieces9 5.2Testing9 5.3Re-test procedure9 5.4Verification of dimensions9 5.5
30、Control of the roughness of ground parts9 5.6Mechanical test9 6Routine tests9 6.1General9 6.2Mechanical routine tests10 6.3Other tests10 7Documentation10 7.1Certificate10 Annex A (informative) Tolerances of form and position11 Annex B (informative) Bending moment equivalent to the design pressure15
31、Annex C (informative) A-deviations16 Figure 1 Bending moments8 Figure A.111 Figure A.211 Figure A.312 Figure A.412 Figure A.512 Figure A.613 Figure A.714 Page Figure A.814 Figure B.115 Table 17 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
32、 4 blank Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50062:1991 BSI 11-19995 1 General 1.1 Scope This standard applies to hollow insulators made of ceramic material, with their fixing devices, intended for use with a permanent gas pre
33、ssure greater than 0,5 bar having an internal volume equal to or greater than 1 litre (1 000 cm3). They are intended for use in electrical equipment operating on alternating current with a rated voltage greater than 1 000 V and a frequency not greater than 100 Hz or for use in direct current equipme
34、nt with a rated voltage greater than 1 500 V. The hollow insulators covered by this standard consist of hollow insulator bodies, open from end to end, with or without sheds. NOTE 1The gas can be: dry air, inert gases, e.g. sulfur hexafluoride or nitrogen or a mixture of such gases. NOTE 2The hollow
35、insulators are intended for use in electrical equipment, for example: Circuit-breakers, Switch-disconnectors, Disconnectors, Earthing switches, Instrument transformers, Surge arresters, Bushings, Cable sealing ends. This standard supplements, and modifies if necessary, HD 329 (IEC 233) which applies
36、 to the body of hollow insulators. 1.2 Object The object of this standard is: to prescribe design rules, to prescribe test procedures and test values, regarding pressure and bending stresses for hollow insulators covered by scope 1.1. It is not the object of this standard to prescribe impulse voltag
37、e or power frequency voltage type tests, because the withstand voltages are not characteristics of the hollow insulator itself, but of the apparatus of which it ultimately forms a part. 1.3 Definitions For the purposes of this standard, the following definitions apply. 1.3.1 hollow insulator body a
38、hollow insulating part body, which is open from end to end, with or without sheds, but does not include the fixing devices or end fittings 1.3.2 hollow insulator a hollow insulating part, which is open from end to end, with or without sheds, but including the fixing devices or end fittings (IEC 233-
39、HD 329) NOTEThis is a general term which also covers the definitions under the subclauses 1.3.4, 1.3.5 and 1.3.6. 1.3.3 fixing device or metal fitting a device forming part of a hollow insulator, intended to connect it to a supporting structure or to an item of equipment, or to another insulator NOT
40、EWhere the fixing device is metallic, the term “metal fitting” is also used. 1.3.4 hollow post insulator a hollow post insulator consists of one hollow post insulator unit or an assembly of more units and is intended to give a rigid support to a live part, which is to be insulated from earth or from
41、 another live part 1.3.5 hollow post insulator unit a hollow post insulator unit consists of a permanent assembly of a hollow insulating body with fixing devices and is intended to give a rigid support 1.3.6 chamber insulator a chamber insulator is a hollow insulator, which is used as a housing, for
42、 example the arc extinction chamber of a circuit-breaker 1.3.7 bushing a device that enables one or several conductors to pass through a partition such as a tank and insulates the conductor from it. The means of attachment (flange or other fixing device) to the partition forms parts of the bushing (
43、IEV 471-02-01) 1.3.8 design pressure it is at least the upper limit of differential pressure reached between the interior and exterior of the hollow insulator during operation at the design temperature 1.3.9 design temperature the highest temperature reached inside the hollow insulator which can occ
44、ur under service conditions. This is generally the upper limit of ambient air temperature increased by the temperature rise due to the flow of rated normal current, and to dielectric losses, if any Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c)
45、 BSI EN 50062:1991 6 BSI 11-1999 1.3.10 type test withstand bending moment it is the withstand bending moment verified in a type test according to subclause 4.3 of a pressurized hollow insulator to be used in an electrical equipment. The withstand bending moment is based on load conditions specified
46、 in subclause 2.2.3 1.3.11 manufacturer individual or organization, who produces the hollow insulators 1.4 Marking Each hollow insulator body shall be marked, on an external glazed surface, with the name or trade mark of the manufacturer, the year of manufacture, the type reference mark and the seri
47、al number. This mark shall be legible and indelible. 2 General recommendations for design and construction 2.1 Purpose The rules for the design of gas-pressurized hollow insulators for high-voltage switchgear prescribed in this section take into account that these hollow insulators are subjected to
48、particular operating conditions which distinguish them from compressed air receivers and similar storage vessels. 2.2 Rules for design When designing hollow insulators, the following points shall be taken into consideration. Deviations and tolerances of profile: circularity, run out, camber, paralle
49、lism, coaxiality, evenness, differences in wall thickness, and angular and radial position of fixing holes shall all take account of the parts to be fitted inside. It shall be considered that electrical strength, mechanical strength and technological problems may influence the real construction, but due to the complexity of this subject no definitive guide can be given. A critical selection of materials for cementing and fittings is also necessary. The ceramic material shall comply in its characteristics with IEC 672-3 gr
链接地址:https://www.31doc.com/p-3742840.html