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1、BRITISH STANDARD BS 5626-3.2: 1985 IEC 554-3-2: 1983 Cellulosic papers for electrical purposes Part 3: Specification for individual materials Section 3.2 Capacitor paper IEC title: Specification for cellulosic papers for electrical purposes Part 3: Specifications for individual materials Sheet 2: Ca
2、pacitor paper UDC 621.315.614.6:676.254:621.319.4 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:54:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5626-3.2:1985 This British Standard, having been prepared under the direction of the General Electrotechnical Engineering Standards Committe
3、e, was published under the authority of the Board of BSI and comes into effect on 31 July 1985 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference GEL/16 Draft for comment 83/29941 DC ISBN 0 580 14501 8 Committees responsible for this British Standard Th
4、e preparation of this British Standard was entrusted by the General Electrotechnical Engineering Standards Committee (GEL/-) to Technical Committee GEL/16, upon which the following bodies were represented: Adhesive Tape Manufacturers Association BEAMA Transmission and Distribution Association Britis
5、h Industrial Ceramic Manufacturers Association British Paper and Board Industry Federation (PIF) British Plastics Federation British Telecommunications Department of Trade and Industry (British Calibration Service) Electrical and Electronic Insulation Association (BEAMA) Electrical Installation Equi
6、pment Manufacturers Association (BEAMA) Electricity Supply Industry in England and Wales Electronic Engineering Association ERA Technology Ltd. Ministry of Defence Rotating Electrical Machines Association (BEAMA) Rubber and Plastics Research Association of Great Britain Telecommunication Engineering
7、 and Manufacturing Association (TEMA) Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:54:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5626-3.2:1985 BSI 10-1999i Contents Page Committees responsibleInside front cover Nati
8、onal forewordii Introduction1 1Scope1 2Requirements1 Table I Requirements for Class 2 Capacitor paper2 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:54:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5626-3.2:1985 ii BSI 10-1999 National forewor
9、d This Section of BS 5626 has been prepared under the direction of the General Electrotechnical Engineering Standards Committee. It is identical with IEC Publication 554-3-2:1983 “Specification for cellulosic papers for electrical purposes. Part 3: Specifications for individual materials. Sheet 2: C
10、apacitor paper” published by the International Electrotechnical Commission (IEC). Other Parts and Sections of BS 5626 are given under “Cross-references” in this national foreword. BS 5626 now supersedes BS 698:1956, BS 4295:1968 and BS 5068:1974 which are withdrawn. WARNING NOTE. This British Standa
11、rd calls for the use of a substance that may be injurious to health, i.e. trichlordiphenyl (see Table I), if adequate precautions are not taken. It refers only to the technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. Terminology an
12、d conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is drawn especially to the following. In the introdu
13、ction, the words “This standard is one of a series which deals with” should be read as “BS 5626 deals with”. Similarly, the words “The series consists of three parts” should be read as “BS 5626 has the following three Parts”. Also, in the introduction, for “Sheet” read “Section”. In clause 1 “Scope”
14、, the words “This sheet” should be read as “This Section of BS 5626”. Where the words “shall be subject to agreement between supplier and purchaser” appear, e.g. in the “Remarks” column of Table I against “Ash”, this should be taken to indicate that the subject matter concerned is not inherently par
15、t of the requirements of the standard, but should be included in the purchase contract. The use of polychlorinated biphenyls is covered by EEC Directive 76/769/EEC and subsequent Directives amending it. These Directives do not prohibit the use of polychlorinated biphenyls for primary and intermediat
16、e products for further processing into other products, which are not prohibited under these EEC Directives. Cross-references International StandardsaCorresponding British Standards IEC 554-1:1977BS 5626 Cellulosic papers for electrical purposes Part 1:1979 Definitions and general requirements (Ident
17、ical) IEC 554-2:1977BS 5626 Cellulosic papers for electrical purposes Part 2:1979 Methods of test (Identical) IEC 554-3-1:1979 (also referred to as Sheet 1 of Part 3) BS 5626 Cellulosic papers for electrical purposes Part 3 Specifications for individual materials Section 3.1:1981 General purpose ele
18、ctrical paper (Identical) IEC 554-3-3:1982 (also referred to as Sheet 3 of Part 3) BS 5626 Cellulosic papers for electrical purposes Part 3 Specifications for individual materials Section 3.3:1982 Crpe paper (Identical) IEC 554-3-4:1980 (also referred to as Sheet 4 of Part 3) BS 5626 Cellulosic pape
19、rs for electrical purposes Part 3 Specification for individual materials Section 3.4:1980 Electrolytic capacitor paper (Identical) a Undated in the text. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:54:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5626-3.2:1985 BSI 10-1999iii Additio
20、nal information. It should be noted that in Table I, as there is no suitable method given in BS 5626-2, the required test method for the determination of the dissipation factor for impregnated papers is given in the “Remarks” column. The requirements specified in the “Remarks” column for thickness,
21、electric strength d.c., dissipation factor and, as notes, for conducting paths, are to be regarded as requirements in this British Standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applica
22、tion. Compliance with a British Standard does not of itself confer immunity from legal obligations. International StandardsaCorresponding British Standards ISO 186:1977bBS 3430:1980 Method for sampling for testing paper and board (Identical) a Undated in the text. b Published by the International Or
23、ganization for Standardization (ISO). Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 6, 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 indicate
24、d in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:54:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:54:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5626-3.2:1985 BSI 10-1
25、9991 Introduction This standard is one of a series which deals with insulating cellulosic papers. The series consists of three parts: Part 1: Definitions and General Requirements (IEC Publication 554-1); Part 2: Methods of Test (IEC Publication 554-2); Part 3: Specifications for Individual Materials
26、. Sheet 1: General Purpose Electrical Paper and Sheet, Sheet 3: Crpe Paper, and Sheet 4: Electrolytic Capacitor Paper, have already been published. Sheet 2 Class 2: Capacitor paper 1 Scope This sheet contains the requirements for capacitor kraft paper: Type 2.1: Kraft capacitor paper. Type 2.2: Kraf
27、t capacitor paper, high reliability. Type 2.3: Kraft capacitor paper, low loss. Type 2.4: Kraft capacitor paper, high reliability, low loss. 2 Requirements 2.1 For sampling procedures see ISO Standard 186: Paper and Board Sampling for Testing. 2.2 The paper shall comply with the general requirements
28、 given in IEC Publication 554-1-1: Definitions and General Requirements. 2.3 When tested by the methods stipulated, the capacitor paper shall comply with the requirements given in Table I. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:54:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5
29、626-3.2:1985 2 BSI 10-1999 Table I Requirements for Class 2 Capacitor paper Property Test method in Part 2 (clause) TypeUnitRequirementsRemarks Thickness2All4m Nominal thickness (4m) ToleranceThe thickness shall be determined according to ISO Standard 438 (testing pressure 100 10 kPa) a precision of
30、 1 % is required. Each stack shall consist of at least ten sheets and sufficient to produce not less than 125 4m thickness. For narrow width material the measurements shall be made at approximately equal intervals along the central line. Nominal apparent density 0.90 g/cm3 and over) ( %) Nominal app
31、arent density below 0.90 g/cm3 ( %) u 6 6 to u 8 8 10 8 7 7 Apparent density4Allg/cm3The apparent density shall not depart from the nominal value by more than 0.05 g/cm3 Tensile strength expressed as tensile index 5AllNm/g60 minimumMeasured in machine direction NOTETo calculate tensile strength and
32、breaking length, use the expressions: where: Y W L = = = = tensile strength (kN/m) tensile index (Nm/g) substance (g/m2) breaking length (km) Moisture content10All%4 to 8 Ash11All%0.5 maximumFor absorbent loaded papers the value shall be subject to agreement between supplier and purchaser. pH of aqu
33、eous extract 13All6.0 to 8.0 X YW 103 -, L Y 9.81 - -= X Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:54:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5626-3.2:1985 BSI 10-19993 Table I Requirements for Class 2 Capacitor paper Property Test method in Part 2 (clause) TypeUnitRequireme
34、ntsRemarks Conductivity of aqueous extract 12AllmS/m3.0 maximum Chloride content of aqueous extract 14Allmg/kg5.0 maximum Electric strength d.c212.1kV/mmNominal density (g/cm3) Lowest value (minimum) For types 2.1 and 2.3, nine tests shall be made and no individual reading shall be lower than the va
35、lue shown. For types 2.2 and 2.4, 21 tests shall be made and not more than one reading shall be below the 20/21 value shown. The central value shall be not less than the value shown. 0.8 1.0 1.1 1.2 W 1.3 20 30 35 40 45 2.2kV/mmNominal density (g/cm3) Central value (minimum) 20/21 value (minimum) 1.
36、0 1.2 W 1.3 85 110 125 80 100 115 2.3kV/mmNominal density (g/cm3) Lowest value (minimum) 0.8 1.0 1.2 20 30 40 2.4kV/mmNominal density (g/cm3) Central value (minimum) 20/21 value (minimum) 0.8 1.0 1.17 1.2 W 1.3 55 85 105 110 125 50 80 100 105 115 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 0
37、1 14:54:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5626-3.2:1985 4 BSI 10-1999 Table I Requirements for Class 2 Capacitor paper Property Test method in Part 2 (clause) TypeUnitRequirementsRemarks Dissipation factor (impregnated) Nominal density (g/cm3) Maximum dissipation factor of impregnated
38、 paper at (C) Model wound capacitors shall be useda, three windings being tested. Winding, drying and impregnation shall be performed using all normal precautions and good practice of capacitor manufacture. The capacitors, of nominal capacity 2 0.5 4F, shall be wound using aluminium foil of capacito
39、r manufacturing quality (oil free) of width about 40 mm, with an edge margin of at least 5 mm, on a 10 mm removable core with ten complete turns of paper before winding in of the foil. Connection shall be made by two tabs of soft tin foil per electrode at ! and # of the winding length. Approximate n
40、umbers of turns required will be (inclusive of the initial ten) 255080100120 2.11 1040.8 1.0 1.1 1.2 W 1.3 30 35 39 42 46 26 30 33 36 39 26 30 33 36 39 27 32 35 38 41 32 38 41 45 49 2.21 1041.0 1.2 W 1.3 35 42 46 30 36 39 30 36 39 32 38 41 38 45 49 2.31 1040.8 1.0 1.2 24 29 36 21 26 31 21 26 31 21 2
41、6 31 24 29 35 Thickness: Number: 8 150 10 170 12 180 15 190 18 4m 200 2.41 1040.8 1.0 1.17 1.2 W 1.3 24 29 35 36 42 21 26 31 32 33 21 26 30 31 33 21 26 30 31 35 24 29 34 35 40 After drying and impregnation, the dissipation factor shall be measured in a suitable oven at the temperatures indicated sta
42、rting at the highest and allowing at least 30 min for temperature stabilization of the windings at each temperature, using a guarded bridge with a tuned detector, to an accuracy in conformity with Sub-clause 7.3 of IEC Publication 250: Recommended Methods for the Determination of the Permittivity an
43、d Dielectric Dissipation Factor of Electrical Insulating Materials at Power, Audio and Radio Frequencies including Metre Wavelengths. The measurements shall be made at a potential gradient of 15 kV/mm calculated on the nominal thickness of the paper. The result at any temperature is the central valu
44、e of the three measurements. Values are given for trichlordiphenyl but another impregnant may be used where appropriate. In this case the limits given may not be applicable and are under consideration. a Using two-layer dielectric. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:54:44 GMT+
45、00:00 2006, Uncontrolled Copy, (c) BSI BS 5626-3.2:1985 BSI 10-19995 Table I Requirements for Class 2 Capacitor paper Property Test method in Part 2 (clause) TypeUnitRequirementsRemarks Conducting paths23 (Method 2) Maximum count per square meter NOTE 1If the fault count in the first square metre te
46、sted is greater than the permitted value but less than 6, further equal area shall be tested until either: a) the average count per square metre falls below the permitted value or b) six faults have been counted. Only in case b) will the material be rejectable. NOTE 2Values for other nominal densiti
47、es shall be established by linear interpolation. NOTE 3Method 2 of Clause 23 permits a range of time constants for the measuring equipment. The limits given relate to counts made with an equipment having a time constant of 10 ms. Equipment with other time constants shall be subjected to agreement be
48、tween supplier and purchaser. Nominal thickness (4m) Nominal density (g/cm3) 0.81.01.11.171.2W 1.3 2.1m25 6 7 7.5 8 9 10 10 to u 12 12 to u 15 15 to u 18 18 to u 25 6 4 2 1 1 23 22 14 10 5 3 2 49 38 27 19 8 4 3 200 160 110 90 76 57 40 29 13 6 5 105 76 53 39 18 11 7 2.2m28 10 10 to u 12 12 to u 15 15
49、 to u 18 18 to u 25 12 7 5 4 3 2 43 28 17 8 5 4 55 37 27 18 10 6 2.3m210 10 to u 12 12 to u 15 15 to u 18 18 to u 25 6 4 2 1 1 14 10 5 3 2 40 29 13 6 5 2.4m28 9 10 10 to u 12 12 to u 15 15 to u 18 18 to u 25 5 3 2 1 1 16 8 5 4 3 2 32 16 14 10 7 5 4 38 21 15 10 6 5 55 38 27 18 10 6 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:54:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 blank Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:54:44 GMT+00:00 2006, Uncontr