EN 60507-2014 en Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a c systems.pdf

1、BSI Standards PublicationArtificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systemsBS EN 60507:2014National forewordThis British Standard is the UK implementation of EN 60507:2014. It isidentical to IEC 60507:2013. It supersedes BS EN 60507:1993 which is withd

2、rawn.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 secretary.This publication does not purport to include all the necessary provisions ofa contrac

3、t. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 75470 8ICS 29.080.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authori

4、ty of theStandards Policy and Strategy Committee on 31 March 2014.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60507:2014EUROPEAN STANDARD EN 60507 NORME EUROPENNE EUROPISCHE NORM March 2014 CENELEC European Committee for Electrotechnical Standardization Comi

5、t Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels 2014 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60507:2014 E ICS

6、29.080.10 Supersedes EN 60507:1993 English version Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems (IEC 60507:2013) Essais sous pollution artificielle des isolateurs haute tension en cramique et en verre destins aux rseaux courant alternatif (CEI 60

7、507:2013) Fremdschichtprfungen an Hochspannungs-Isolatoren aus Keramik und Glas zur Anwendung in Wechselspannungssystemen (IEC 60507:2013) This European Standard was approved by CENELEC on 2014-01-17. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the c

8、onditions 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 Standar

9、d 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 th

10、e national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Polan

11、d, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 60507:2014EN 60507:2014 - 2 - Foreword The text of document 36/337/FDIS, future edition 3 of IEC 60507, prepared by IEC/TC 36 “Insulators“ was submitted to the IEC-CENELEC parallel vote and app

12、roved by CENELEC as EN 60507:2014. The following 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) 2014-10-17 latest date by which the national standards conflicting with the document ha

13、ve to be withdrawn (dow) 2017-01-17 This document supersedes EN 60507:1993. EN 60507:2014 includes the following significant technical changes with respect to EN 60507:1993: a) Corrections and the addition of explanatory material; b) The addition of Clause 4.4.2 on atmospheric correction; c) The cha

14、nge of the upper limit of conductivity of water to 0.1 S/m; and d) The extension to UHV voltages. Attention 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 pat

15、ent rights. Endorsement notice The text of the International Standard IEC 60507:2013 was approved by CENELEC as a European Standard without any modification. BS EN 60507:2014- 3 - EN 60507:2014 Annex ZA (normative) Normative references to international publications with their corresponding European

16、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 the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) app

17、lies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60060-1 - High-voltage test techniques - Part 1: General definitions and test requirements EN 60060-1 - IEC 60071-1 - Insulati

18、on co-ordination - Part 1: Definitions, principles and rules EN 60071-1 - IEC/TS 60815-1 - Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 1: Definitions, information and general principles - - IEC/TS 60815-2 - Selection and dimensioning of high-v

19、oltage insulators intended for use in polluted conditions - Part 2: Ceramic and glass insulators for a.c. systems - - BS EN 60507:2014 2 60507 IEC:2013 CONTENTS 1 Scope 7 2 Normative references 7 3 Terms and definitions 7 4 General test requirements . 10 4.1 General 10 4.2 Test method . 10 4.3 Arran

20、gement of insulator for test 10 Test configuration . 10 4.3.1Cleaning of insulator . 11 4.3.24.4 Requirements for the testing plant . 11 Test voltage 11 4.4.1Atmospheric corrections . 11 4.4.2Minimum short-circuit current 12 4.4.35 Salt fog method . 13 5.1 General information . 13 5.2 Salt solution

21、. 13 5.3 Spraying system 15 5.4 Conditions before starting the test 18 5.5 Preconditioning process . 18 5.6 Withstand test 19 5.7 Acceptance criterion for the withstand test . 19 6 Solid layer methods . 19 6.1 General information . 19 6.2 Main characteristics of inert materials 20 6.3 Composition of

22、 the contaminating suspension 20 General 20 6.3.1Kieselguhr composition . 20 6.3.2Kaolin (or Tonoko) composition 21 6.3.36.4 Application of the pollution layer 22 6.5 Determination of the degree of pollution of the tested insulator 23 General 23 6.5.1Layer conductivity (K) . 23 6.5.2Salt deposit den

23、sity (SDD) 23 6.5.36.6 General requirements for the wetting of the pollution layer . 24 6.7 Test procedures . 24 General 24 6.7.1Procedure A Wetting before and during energization . 24 6.7.2Procedure B Wetting after energization 26 6.7.36.8 Withstand test and acceptance criterion (common to both Pro

24、cedures A and B) 27 Annex A (informative) Supplementary information on the assessment of the requirement for the testing plant . 28 Annex B (informative) Determination of the withstand characteristics of insulators . 29 B.1 General 29 BS EN 60507:201460507 IEC:2013 3 B.2 Determination of the maximum

25、 withstand salinity at a given test voltage 29 B.3 Determination of the maximum withstand voltage, or of the 50 % withstand voltage, at a given reference layer conductivity, or at a given reference salt deposit density 29 B.3.1 Maximum withstand voltage 29 B.3.2 50 % withstand voltage . 30 B.4 Withs

26、tand values of reference suspension insulators . 30 Annex C (informative) Measurement of layer conductivity for checking the uniformity of the layer . 32 Annex D (informative) Additional recommendations concerning the solid layer method procedures 34 D.1 General 34 D.2 Contamination practice 34 D.3

27、Drying of the pollution layer . 34 D.4 Check of the wetting action of the fog 34 D.5 Checking fog uniformity for large or complex test objects . 35 D.6 Fog input in the test chamber . 35 D.7 Minimum duration of the withstand test 35 D.8 Evaluation of the reference salt deposit density (SDD) . 36 Ann

28、ex E (informative) Supplementary information on artificial pollution tests on insulators for voltage systems of 800 kV and above (solid layer method procedure B) 37 E.1 Introduction 37 E.2 Test chamber . 37 E.3 Fog generator 37 E.4 Wetting action and uniformity of fog density . 37 Bibliography 38 Fi

29、gure 1 Minimum short-circuit current, Isc min, required for the testing plant as a function of the unified specific creepage distance (USCD) of the insulator under test 13 Figure 2 Value of factor b as a function of solution temperature . 15 Figure 3 Typical construction of fog spray nozzle . 17 Fig

30、ure 4 Test layout for inclined insulators . 18 Figure 5 Typical arrangement of steam-fog generator 26 Figure C.1 Arrangement of the probe electrodes (all dimensions in mm) . 32 Figure C.2 Circuit diagram of the meter . 33 Figure D.1 Control of the wetting action of the steam fog: Layer conductance r

31、ecording during the test on the chosen dummy insulator (standard type of Table B.1) . 36 Table 1 Salt-fog method: correspondence between the value of salinity, volume conductivity and density of the solution at a temperature of 20 C . 14 Table 2 Main characteristics of the inert materials used in so

32、lid layer suspensions 20 Table 3 Kieselguhr composition: approximate correspondence between the reference degrees of pollution on the insulator and the volume conductivity of the suspension at a temperature of 20 C . 21 Table 4 Kaolin (or Tonoko) composition: approximate correspondence between the r

33、eference degrees of pollution on the insulator and the volume conductivity of the suspension at a temperature of 20 C . 22 Table A.1 Expected Ih maxvalues related to different USCD values 28 BS EN 60507:2014 4 60507 IEC:2013 Table B.1 Ranges of values of withstand characteristics of reference suspen

34、sion insulators in artificial pollution tests 31 BS EN 60507:201460507 IEC:2013 7 ARTIFICIAL POLLUTION TESTS ON HIGH-VOLTAGE CERAMIC AND GLASS INSULATORS TO BE USED ON A.C. SYSTEMS 1 Scope This International Standard is applicable for the determination of the power frequency withstand characteristic

35、s of ceramic and glass insulators to be used outdoors and exposed to polluted atmospheres, on a.c. systems with the highest voltage of the system greater than 1 000 V. These tests are not directly applicable to polymeric insulators, to greased insulators or to special types of insulators (insulators

36、 with semiconducting glaze or covered with any organic insulating material). The object of this International Standard is to prescribe procedures for artificial pollution tests applicable to insulators for overhead lines, substations and traction lines and to bushings It may also be applied to hollo

37、w insulators with suitable precautions to avoid internal flashover. In applying these procedures to apparatus incorporating hollow insulators, the relevant technical committees should consider their effect on any internal equipment and the special precautions which may be necessary. 2 Normative refe

38、rences The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

39、IEC 60071-1, Insulation co-ordination Part 1: Definitions, principles and rules IEC/TS 60815-1, Selection and dimensioning of high-voltage insulators intended for use in polluted conditions Part 1: Definitions, information and general principles IEC/TS 60815-2, Selection and dimensioning of high-vol

40、tage insulators intended for use in polluted conditions Part 2: Ceramic and glass insulators for a.c. systems IEC 60060-1, High-voltage test techniques Part 1: General definitions and test requirements 3 Terms and definitions For the purpose of this standard, the following terms and definitions appl

41、y. 3.1 test voltage the r.m.s. value of the voltage with which the insulator is continuously energized throughout the test 3.2 short-circuit current (Isc) of the testing plant the r.m.s. value of the current delivered by the testing plant when the test object is short-circuited at the test voltage B

42、S EN 60507:2014 8 60507 IEC:2013 3.3 unified specific creepage distance USCD the creepage distance of an insulator divided by the maximum operating voltage across the insulator (for a.c. systems usually Um/3) Note 1 to entry: This is generally expressed in mm/kV. Note 2 to entry: This definition dif

43、fers from that of Specific Creepage Distance where the phase-to-phase value of the highest voltage for the equipment is used. For phase-to-earth insulation, this definition will result in a value that is 3 times that given by the definition of Specific Creepage Distance in IEC/TS 60815 (1986). See A

44、nnex J of IEC 60815-1:2008 for details. 3.4 form factor of an insulator Ff dimensionless number that presents the length (l) of the partial creepage distance divided by the integrated width (p) Note 1 to entry: For insulators, the length is in the direction of the creepage distance and the width is

45、the circumference of the insulator. Note 2 to entry: The form factor is calculated by the formula ( )=L0lpdlFf where L is the total creepage distance p(l) = 2.r(l) For graphical estimation of the form factor, the reciprocal value of the insulator circumference (p1) is plotted versus the partial cree

46、page distance l counted from the end of the insulator up to the point reckoned. The form factor is given by the area under this curve. 3.5 salinity Saconcentration of the solution of salt in tap water, expressed by the amount of salt divided by the volume of solution Note 1 to entry: This is general

47、ly expressed in kg/m3.3.6 pollution layer a conducting electrolytic layer on the insulator surface, composed of salt plus inert materials Note 1 to entry: The conductance of the pollution layer on the insulator is measured in accordance with 6.5.1. 3.7 layer conductivity (K) the conductance of the p

48、ollution layer multiplied by the form factor Note 1 to entry: This is generally expressed in S. BS EN 60507:201460507 IEC:2013 9 3.8 salt deposit density SDD amount of sodium chloride in an artificial deposit on a given surface of the insulator (metal parts and assembling materials are not to be inc

49、luded in this surface) divided by the area of this surface Note 1 to entry: This is generally expressed in mg/cm2. 3.9 degree of pollution the value of the quantity (salinity, layer conductivity, salt deposit density) which characterizes the artificial pollution applied to the tested insulator 3.10 reference salinity the value of the salinity used to characterize a test 3.11 reference layer conductivity the value of the layer conductivity used to characterize a test Note 1 to entry: