EN 60168-1994 en Tests on Indoor and Outdoor Post Insulators of Ceramic Material or Glass for Systems with Nominal Voltages Greater Than 1 kV (Incorporates Amendments A1 1997 and A.pdf

1、BRITISH STANDARD Tests on indoor and outdoor post insulators of ceramic material or glass for systems with nominal voltages greater than 1 kV The European Standard EN 60168: 1994, with the incorporation of amendments A1:1997 and A2:2000, has the status of a British Standard ICs 29.080.10 BS EN 60168

2、:1995 IEC 60168:1994 Incorporating Amendments Nos. 1 and 2 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 60168:1995 Amd. No. 10499 Committees responsible for this British Standard Date Comments January 2000 The preparation of this British Standard was entrusted to Tech

3、nical Committee PEU36, Insulators for power systems, upon which the following bodies were represented: Association of Consulting Engineers BEAMA Electrical Cable and Conductor Accessory Manufacturers Association British Industrial Ceramic Manufacturers Association British Railways Board Electrical a

4、nd Electronic Insulation Association (BEAIVU Ltd.) Electricity Association Overhead Transmission Line Contractors (BEAMA Ltd.) Transmission and Distribution Association (BEAMA Ltd.) This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published un

5、der the authority of the Standards Board and comes into effect on 15June1995 Amendment O BSI 06-2001 The following BSI references relate to the work on this standard Committee reference PEU36 Draft for comment 92/29485 DC i sued sin e publi tion I June 2001 Indicated by a sideline I 13134 ISBN O 580

6、 24303 6 BS EN 60168:1995 - O BSI 06-2001 Contents Committees responsible National foreword Page Inside front cover 11 Foreword 2 Text of EN 60168 5 1 BS EN 60168:1995 National foreword This British Standard has been prepared by technical committee PEL36 and is the English Language version of EN 601

7、68: 1994 Tests on indoor and outdoorpost insulators of ceramic material or glass for systems with nominal voltages greater than 1 IzV, including amendments A1:1997 and A2:2000, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC 60168:1994 inc

8、luding amendments 1:1997 and 2:2000 published by the International Electrotechnical Commission (IEC). This British Standard supersedes BS 3297- 1:1982 which will be withdrawn on 1 December 1995. BS 3297-2 which is identical to IEC 60273 Characteristics of indoor and outdoor post insulators for syste

9、ms greater than 1 O00 V (implementation of CENELEC HD 578 S1:1992) remains current. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standar

10、ds Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. Additional information The graphic signs, symbols and letters used in this standard may be found in the following British Standards: BS 3939, Graphic symbols for electrical power, telecommunications

11、and electronics diagrams. Part 1:1986: General information, general index; Part 2:1985: Symbol elements, qualifying symbols and other symbols having general application. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsi

12、ble 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, pages 2 to 42, an inside back cover and a back cover. The

13、 BSI copyright notice displayed in this document indicates when the document was last issued. Sidelining in this document indicates the most recent changes by amendment. O BSI 06-2001 11 EUROPEAN STANDARD NORME EUROPENNE O EUROPISCHE NORM EN 60168 December 1994 + Ai + A2 July 1997 December 2000 ICs

14、29.080.10 Descriptors: Post insulators, ceramic material, glass, test English version Tests on indoor and outdoor post insulators of ceramic material or glass for systems with nominal voltages greater than 1 kV (includes amendments A1:1997 and A2:2000 ) (IEC 60168:1994 + A1:1997 + A2:2000) Essais de

15、s supports isolants dintrieur et dextrieur, en matire cramique ou en verre, destins des installations de tension nominale suprieure 1 kV (inclut les amendements A1:1997 et A2:2000) (CE1 60168:1994 + A1:1997 + A2:2000) Prfungen an Innenraum- und Freiluft-Sttzisolatoren aus keramischem Werkstoff oder

16、Glas fr Systeme mit Nennspannungen ber 1 kV (enthlt nderungen Al: 1997 und A2:2000) (IEC 60168:1994 + A1:1997 + A2:2000) This European Standard was approved by CENELEC on 1994-12-06. CENELEC members are bound to comply with the CENCENELEC Internal Regulations which stipulate the conditions for givin

17、g 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 Central Secretariat or to any CENELEC member. This European Standard exists in three official ve

18、rsions (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 Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees

19、of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisch

20、es Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 0 1994 Copyright reserved to CENELEC members O Ref. No. EN 60168:1994 + A1:1997 + A2:2000 E EN 60168:1994 Foreword The text of document 36C(C0)58, future edition 4 of IEC 168, prepared by SC 36C, Insulat

21、ors for substations, of IEC TC 36, Insulators, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60168 on 1994-12-06. 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

22、or by - latest date by which the national standards conflicting with the EN endorsement (dop) 1995-12-01 have to be withdrawn (dow) 1995-12-01 Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annex

23、 ZA is normative and Annex A, Annex B and Annex C are informative. Annex ZA has been added by CENELEC. Foreword to amendment Al The text of document 36C/81/FDIS, future amendment 1 to IEC 60168:1994, prepared by SC 36C, Insulators for substations, of IEC TC 36, Insulators, was submitted to the IEC-C

24、ENELEC parallel vote and was approved by CENELEC as amendment Al to EN 60168:1994 on 1997-07-01. The following dates were fixed: - latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1998-04-01 - latest d

25、ate by which the national standards conflicting with the amendment have to be withdrawn (dow) 1998-04-01 Foreword to amendment A2 The text of document 36C/121/FDIS, future amendment 2 to IEC 60168:1994, prepared by SC 36C, Insulators for substations, of IEC TC 36, Insulators, was submitted to the IE

26、C-CENELEC parallel vote and was approved by CENELEC as amendment A2 to EN 60168:1994 on 2000-11-01. The following dates were fixed: - latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement - latest date by which t

27、he national standards conflicting with the amendment have to be withdrawn Contents (dop) 2001-08-01 (dow) 2003-11-01 Foreword Introduction Section 1. General 1.1 Scope and object 1.2 Normative references 1.3 Definitions Section 2. Insulators 2.1 Insulator designs and insulating materials 2.2 Values

28、which characterize a post insulator 2.3 Identification of insulators Section 3. Classification of the tests, sampling rules and procedures 3.1 Classification of the tests 3.2 Quality assurance 3.3 General requirements for type tests 3.4 General requirements for sample tests Section 4. Test procedure

29、s for electrical tests 4.1 General requirements for high-voltage tests 4.2 Standard atmospheric conditions and correction factors for electrical tests 4.3 Artificial rain parameters for wet tests 4.4 Mounting arrangements for electrical tests 4.5 Dry lightning-impulse withstand voltage test - Type t

30、est 4.6 Dry or wet switching-impulse withstand voltage tests - Type test Page 2 3 5 5 6 9 9 10 11 11 11 13 15 15 15 15 17 17 O BSI 06-2001 EN 60168:1994 Page 4.7 Dry power-frequency withstand voltage test - Type test (applicable only to post insulators for indoor use) 4.8 Wet power-frequency withsta

31、nd voltage test - Type test (applicable only to post insulators for outdoor use) 18 18 4.9 Puncture test - Sample test 19 4.10 Routine electrical test 19 Section 5. Test procedures for mechanical and other tests 5.1 Verification of the dimensions - Type 5.2 Mechanical failing load test - Type 5.3 Te

32、st for deflection under load - Special type test 24 5.4 Temperature cycle test - Sample test 24 and sample test 21 and sample test 22 a 5.5 Routine thermal shock test (applicable only to toughened glass insulating parts) Porosity test - Sample test (applicable only to ceramic post insulators) Galvan

33、izing test - Sample test 5.6 5.7 5.8 Routine visual inspection 5.9 Routine mechanical test Section 6. Tests applicable to post insulators 6.1 Type tests 6.2 Sample tests 6.3 Routine tests 6.4 Summary of tests on post insulators Annex A (informative) Methods of testing for tolerances of parallelism,

34、eccentricity, angular deviation, camber and shed angle of post insulators O 25 25 25 26 27 29 29 29 30 35 Annex B (informative) Methods of routine testing of unassembled insulator units 38 Annex C (informative) Bibliography 41 Annex ZA (normative) Other international publications quoted in this stan

35、dard with the references of the relevant European publications 42 Figure 1 - Solid core cylindrical post insulator 32 Figure 2 - Cavity core cylindrical post insulator 33 Figure 3 - Cylindrical post insulator with internal metal fittings 33 Figure 4 - Cylindrical post insulator with internal metal f

36、ittings 34 Figure 5 - Pedestal post insulator 34 o Figure 6 - Cylindrical post insulator 34 Page Figure A.2 36 Figure A. 3 36 Figure A. 1 35 Figure A.4 37 Figure A.5 37 Figure B.2 39 Figure B.l 38 Figure B.3 40 Table 1 - Number of samples for sample tests 13 Table 2 - Mounting height of outdoor post

37、 insulators 16 Table 3 - Type tests applicable to post insulators 30 Table 4 - Sample tests applicable to post insulators 30 Table 5 - Routine tests applicable to post insulators 31 Introduction The main purpose in preparing this edition has been to align the text and presentation as far as practica

38、ble with the fourth edition of IEC 383-1 and Concepts of electrical and mechanical equivalence of post insulators have been introduced, and the clauses dealing with mechanical testing have been redrafted to clarify the test requirements. IEC 383-2. O BSI 06-2001 3 EN 60168:1994 Section 1. General 1.

39、1 Scope and object This International Standard IEC 168 is applicable to post insulators and post insulator units of ceramic material or glass, for indoor and outdoor use in electrical installations or equipment, operating on alternating current with a nominal voltage greater than 1 O00 V and a frequ

40、ency not greater than 100 Hz. This standard may be regarded as a provisional standard for post insulators for use on d.c. systems. IEC 438 gives general guidance for those insulators. This standard does not apply to composite insulators, or to those indoor post insulators in organic material which a

41、re covered by another IEC standard ill). The object of this standard is to define: -the terms used - the electrical and mechanical characteristics of post insulators; - the conditions under which the specified values of these characteristics are verified; - the methods of test; - the acceptance crit

42、eria. Numerical values of characteristics of post insulators are specified in IEC 273. This standard does not include requirements dealing with the choice of post insulators for specific operating conditions. NOTE 1 A guide for the choice of insulators under polluted conditions is available, see 2 N

43、OTE 2 This standard does not include radio interference tests or artificial pollution tests. These subjects and relevant test methods are dealt with in other IEC publications, see 3, 4 and 5. NOTE 3 When this standard is applied to hollow post insulators, other IEC publications should also be taken

44、into account, see 161 and 7. O 1.2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All normative documents are subject

45、 to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the normative documents listed below. Members of IEC and IS0 maintain registers of currently valid normative documents. IEC 50(471): 1984,

46、 International Electrotechnical Vocabulary (IEV) - Chapter 471: Insulators. IEC 60-1: 1989, High-voltage test techniques - Part 1: General definitions and test requirements. IEC 71-1:1993, Insulation eo-ordination - Part 1: Definitions, principles and rules. IEC 71-2:1976, Insulation eo-ordination -

47、 Part 2: Application guide. IEC 71-31982, Insulation eo-ordination - Part 3: Phase-to-phase insulation eo-ordination - Principles, rules and application guide. IEC 273: 1990, Characteristics of indoor and outdoor post insulators for systems with nominal voltages greater than 1 O00 V. IEC 438: 1973,

48、Tests and dimensions for high-voltage d.c. insulators. IS0 14591973, Metallic coatings - Protection against corrosion by hot dip galvanizing - Guiding principles. IS0 1460:1992, Metallic coatings - Hot dip galvanized coatings on ferrous metals - Gravimetric determination of the mass per unit area. I

49、S0 1461:1973, Metallic coatings - Hot dip galvanized coatings on fabricated ferrous products - Requirements. IS0 1463:1982, Metal and oxide coatings - Measurement of coating thickness - Microscopical method. O 1) The figures in square brackets refer to Annex C (Bibliography). - - O BSI 06-2001 5 EN 60168:1994 Section i IS0 2064:1980, Metallic and other non-organic coatings - Definitions and conventions concerning the measurement of thickness. IS0 2178: 1982, Non-magnetic coatings on magnetic substrates - Measurement of coating thickness - Magnetic me