1、BRITISH STANDARD BS 5626-3.4: 1980 IEC 554-3-4: 1979 Cellulosic papers for electrical purposes Part 3: Specifications for individual materials Section 3.4 Electrolytic capacitor paper IEC title: Specification for cellulosic papers for electrical purposes Part 3: Specifications for individual materia
2、ls. Sheet4:Electrolytic capacitor paper UDC 621.315.614.6:676.254:621.319.45BS5626-3.4:1980 This British Standard, having been prepared under the direction of the General Electrotechnical Engineering Standards Committee, was published under the authority of the Executive Board and comes into effect
3、on 30 June 1980 BSI 08-1999 The following BSI references relate to the work on this standard: Committee reference GEL/16 Draft for comment 78/25795 DC ISBN 0 580 11423 6 Cooperating organizations The General Electrotechnical Engineering Standards Committee, under whose direction this British Standar
4、d was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: Associated Offices Technical Committee British Approvals Service for Electric Cables Ltd. British Electrical and Allied Manufacturers Association (BEAMA) British Radio E
5、quipment Manufacturers Association British Steel Corporation Department of Energy (Electricity) Electric Cable Makers Confederation Electricity Supply Industry in England and Wales Electronic Components Industry Federation* Electronic Engineering Association Engineering Equipment Users Association E
6、RA Technology Ltd.* Health and Safety Executive Home Office Institution of Electrical Engineers Ministry of Defence* National Coal Board Oil Companies Materials Association Post Office* The organizations marked with an asterisk in the above list, together with the following, were directly represente
7、d on the committee entrusted with the preparation of this British Standard: Adhesive Tape Manufacturers Association British Industrial Ceramic Manufacturers Association British Paper and Board Industry Federation (PIF) British Plastics Federation Department of Industry (British Calibration Service)
8、Department of Industry (National Physical Laboratory) Electrical and Electronic and Insulation Association (BEAMA) Electrical Installation Equipment Manufacturers Association (BEAMA) Rotating Electrical Machines Association (BEAMA) Telecommunication Engineering and Manufacturing Association (TEMA) T
9、ransmission and Distribution Association (BEAMA) Amendments issued since publication Amd. No. Date of issue CommentsBS5626-3.4:1980 BSI 08-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Introduction 1 Sheet 4 Class 4: Electrolytic capacitor paper 1 Scope 1 2 R
10、equirements 1 Table I Requirements for Class 4 Electrolytic capacitor paper 2 Publications referred to Inside back coverBS5626-3.4:1980 ii BSI 08-1999 National foreword This Section of this British Standard, published under the direction of the General Electrotechnical Engineering Standards Committe
11、e, is identical with IEC Publication554-3-4 “Specification for cellulosic papers for electrical purposes. Part 3: Specifications for individual materials. Sheet 4: Electrolytic capacitor paper”, published in1979, by the International Electrotechnical Commission (IEC). Other Parts of BS5626 are given
12、 under “Cross-references” in this national foreword. It is the intention that BS5626 will ultimately replace BS698:1956 “Papers for electrical purposes” and BS4295:1968 “Capacitor tissue paper”. A decision on withdrawal of those standards will be taken at an appropriate stage during the publication
13、of the separate specification Sections for the individual materials as Part3 of BS5626. Terminology and conventions. The text of the International Standard has been approved as suitable for publication, without deviation, as a British Standard. Some terminology and certain conventions are not identi
14、cal with those used in British Standards; attention is especially drawn to the following. In the introduction, the words “This standard is one of a series which deals with” should be read as “BS5626 deals with”; similarly, “The series consists of three parts” should be read as “BS5626 has the follow
15、ing three Parts”. In clause1, “Scope”, the words “This sheet” should be read as “This Section of BS5626”. The related British Standard for ISO/R 438:1965 is BS3983:1966. A revision of ISO/R438 is currently in course of preparation. A British Standard does not purport to include all the necessary pro
16、visions 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. Cross references International Standard a Corresponding British Standard IEC 554-1:1977 BS 5626 Cellulosic pa
17、pers for electrical purposes Part 1:1979 Definitions and general requirements (Identical) IEC 554-2:1977 BS 5626 Cellulosic papers for electrical purposes Part 2:1979 Methods of test (Identical) ISO 186:1977 b BS 3430:1980 Method for sampling for testing paper and board (Identical) a Updated in the
18、text. b Published by the International Organization for Standardization (ISO). Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to4, an inside back cover and a back cover This standard has been updated (see copyright date) and may have had amendment
19、s incorporated. This will be indicated in the amendment table on the inside front cover.BS5626-3.4:1980 BSI 08-1999 1 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 Pub
20、lication554-1); Part 2: Methods of test (IEC Publication554-2); Part 3: Specifications for individual materials. Sheet 4 Class 4: Electrolytic capacitorpaper 1 Scope This sheet contains the requirements for electrolytic capacitor paper as described in Part1, of the following types: 2 Requirements 2.
21、1 For sampling procedures, see ISO Standard186: Paper and board Sampling for testing. 2.2 The paper shall comply with the general requirements published in Part1 (IECPublication554-1). 2.3 When tested by the methods stipulated, the paper shall comply with the requirements given inTable I. Type Descr
22、iption 4.1 Absorbent separator paper, long fibres. 4.2 Absorbent separator paper, short fibres. 4.3 Non-absorbent paper.BS 5626-3.4:1980 2 BSI 08-1999 Table I Requirements for Class 4 Electrolytic capacitor paper Property Test method in Part 2 Type Unit Requirements Remarks Thickness 2 all 4m Tolera
23、nce: 10 % The thickness shall be determined in accordance with ISO/R438 except that10 sheets of paper are to be used. For narrow width material the measurements shall be made at approximately equal intervals along the central line Apparent density 4 all g/cm 3 Tolerances: Type 4.1 10 % 4.2 10 % 4.3
24、0.05 % g/cm 3 Moisture content 10 all % 8 maximum Ash 11 all % 0.35 maximum, except for Manilla based absorbent papers, where0.55 maximum is permitted Conductivity of aqueous extract 12 all mS/m 3 maximum Chloride content of aqueous extract 14 all mg/kg 5 maximum The test shall be carried out in acc
25、ordance with the requirements of Method 1 pH of aqueous extract 13 all 6.0 to 7.5 Resistance ratio Under considerationBS 5626-3.4:1980 BSI 08-1999 3 Table I Requirements for Class 4 Electrolytic capacitor paper Property Test method in Part 2 Type Unit Requirements Remarks Water absorption (Klemm met
26、hod) 19 all mm Type 4.2: values not less than those given below: Specimen of narrow width materials in the cross direction shall be of sufficient length to allow them to be dipped at least6mm in the water and to allow sufficient water rise. Nominal thickness (4m) Machine direction Cross direction Ap
27、parent density (g/cm 3 ) Apparent density (g/cm 3 ) 0.55 0.50 0.45 0.40 0.55 0.50 0.45 0.40 30 45 60 75 90 7 11 15 19 23 11 18 26 33 40 13 26 38 48 56 15 33 50 62 71 5 8 11 14 17 8 14 20 25 30 10 20 29 36 42 11 25 38 47 53 ISO calls the method “capillary rise”. The preferred method is by means of a
28、cathetometer using a rectangular container to minimize aberration effects. Type 4.3 Not applicable. Type 4.1 Under consideration.4 blankBS5626-3.4:1980 BSI 08-1999 Publications referred to See national foreword.BS 5626-3.4: 1980 IEC 554-3-4: 1979 BSI 389 Chiswick High Road London W4 4AL BSIBritishSt
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