BS-EN-60156-1996 IEC-60156-1995.pdf
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1、BRITISH STANDARD BS EN 60156:1996 IEC 156:1995 Insulating liquids Determination of the breakdown voltage at power frequency Test method The European Standard EN 60156:1995 has the status of a British Standard ICS 29.040.20 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 15:15:39 GMT+00:00 200
2、6, Uncontrolled Copy, (c) BSI BS EN 60156:1996 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 April 1996 BSI 06-1999 The following BSI references relate to the
3、work on this standard: Committee reference GEL/10 Draft for comment 93/215954 DC ISBN 0 580 25270 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee GEL/10, Fluids for electrotechnical applications, upon which the followin
4、g bodies were represented: British Cable Makers Confederation British Lubricants Federation Limited Chemical Industries Association Electricity Association Health and Safety Executive Institute of Petroleum Institution of Electrical Engineers London Regional Transport National Association of Waste D
5、isposal Contractors Transmission and Distribution Association (BEAMA Limited) Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 15:15:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60156:1996 BSI 06-1999i Contents Page Committees res
6、ponsibleInside front cover National forewordii Foreword2 Text of EN 601563 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 15:15:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60156:1996 ii BSI 06-1999 National foreword This British Standard has been p
7、repared under the direction of the Electrotechnical Sector Board and is the English language version of EN 60156:1995 Insulating liquids Determination of the breakdown voltage at power frequency Test method, published by the European Committee for Electrotechnical Standardization (CENELEC). It is id
8、entical with IEC 156:1995 published by the International Electrotechnical Commission (IEC). This standard supersedes BS 5874:1980 which is withdrawn. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correc
9、t application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-reference Publication referred toCorresponding British Standard EN 60060-2:1994BS EN 60060 High voltage test techniques (IEC 60-2:1994)BS EN 60060-2:1995 Measuring systems Summary of pa
10、ges This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 10, 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 th
11、e inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 15:15:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60156 August 1995 ICS 29.040.20 Descriptors: Electrical insulating materials, liquid electrical insulating materials,
12、tests, determination, breakdown voltage English version Insulating liquids Determination of the breakdown voltage at power frequency Test method (IEC 156:1995) Isolants liquides Dtermination de la tension de claquage frquence industrielle Mthode dessai (CEI 156:1995) Isolierflssigkeiten Bestimmung d
13、er Durchschlagspannung bei Netzfrequenz Prfverfahren (IEC 156:1995) This European Standard was approved by CENELEC on 1995-07-04. 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 st
14、andard 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 versions (English, French, German). A version in any o
15、ther 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 of Austria, Belgium, Denmark, Finland, France, Germa
16、ny, 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 Europisches Komitee fr Elektrotechnische Normung Central Secr
17、etariat: rue de Stassart 35, B-1050 Brussels 1995 Copyright reserved to CENELEC members Ref. No. EN 60156:1995 E Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 15:15:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60156:1995 BSI 06-1999 2 Foreword The text of document 10/338/DIS, future edi
18、tion 2 of IEC 156, prepared by IEC TC 10, Fluids for electrotechnical applications, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60156 on 1995-07-04. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this stand
19、ard, Annex ZA is normative. Annex ZA has been added by CENELEC. Contents Page Foreword2 Introduction3 1Scope3 2Normative references3 3Electrical apparatus3 3.1Voltage regulator3 3.2Step-up transformer3 3.3Current-limiting resistors3 3.4Switching system4 3.5Measuring device4 4Test assembly4 4.1Test c
20、ell4 4.2Electrodes4 4.3Stirring (optional)4 5Preparation of electrodes5 6Test assembly preparation5 7Sampling5 7.1Sample containers5 7.2Sampling technique5 8Condition of the sample5 9Test procedure5 9.1Sample preparation5 9.2Filling of the cell5 9.3Application of voltage6 10Report6 11Test data dispe
21、rsion6 Annex ZA (normative) Normative references to international publications with their corresponding European publications9 Figure 1 Example of suitable cell and spherical electrodes6 Figure 2 Example of suitable cell and partially spherical electrodes7 Figure 3 Graphical representation of coeffi
22、cient of variation (standard deviation/mean ratio) versus mean breakdown voltage8 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 1996-07-01 latest date by which the national standards conflicting with the EN
23、 have to be withdrawn(dow) 1996-07-01 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 15:15:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60156:1995 BSI 06-19993 Introduction As normally applied, breakdown voltage of insulating liquids is not a basic material property but an empirical test
24、 procedure intended to indicate the presence of contaminants such as water and solid suspended matter, and the advisability of carrying out drying and filtration treatment. The breakdown voltage value of insulating liquids strongly depends on the particular set of conditions used in its measurement.
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