BS EN 60674-1-1990 Specification for plastic films for electrical purposes - Definitions and general requirements《电气用塑料薄膜规范 定义和一般要求》.pdf

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1、BRITISH STANDARD BS EN 60674-1:1998 Incorporating Amendment No.1 to BS7290-1:1990 (renumbers the BS as BSEN60674-1:1998) not published separately Specification for Plastic films for electrical purposes Part 1: Definitions and general requirements The European Standard EN 60674-1:1998 has the status

2、of a British Standard ICS 29.035.20BSEN60674-1:1998 This British Standard, having been prepared under the directionof the Cable and Insulation Standards Policy Committee, was published underthe authority of the BoardofBSI and comes into effect on 31 July 1990 BSI 05-1999 The following BSI references

3、 relate to the work on this standard: Committee reference CIL/15 Draft for comment 89/25802 DC ISBN 0 580 18240 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Cable and Insulation Standards Policy Committee (CIL/-) to Technical Commit

4、tee CIL/15, upon which the following bodies were represented: Adhesive Tape Manufacturers Association British Ceramic Research Limited British Industrial Ceramic Manufacturers Association British Paper and Board Industry Federation Department of Trade and Industry, National Measurement Accreditation

5、 Service ERA Technology Limited Electrical and Electronic Insulation Association (BEAMA Ltd.) Electricity Supply Industry in England and Wales Ministry of Defence Rotating Electrical Machines Association (BEAMA Ltd.) Telecommunication Engineering and Manufacturing Association Transmission and Distri

6、bution Association (BEAMA Ltd.) The following bodies were also represented in the drafting of the standard, through sub-committees and panels: British (AC) Capacitor Manufacturers Association (BEAMA Ltd.) British Plastics Federation EBEA (the Electronics and Business Equipment Association) Packaging

7、 and Industrial Films Association Amendments issued since publication Amd. No. Date Comments 10058 July 1998 Implementation of EN 60674-1BSEN60674-1:1998 BSI 05-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Introduction 3 1 Scope 3 2 Definitions 3 3 G

8、eneral requirements 3 4 Dimensions 4 5 Packaging and labelling 4BSEN60674-1:1998 ii BSI 05-1999 National foreword This British Standard is the English language version of EN 60674-1:1998. It is identical with IEC60674-1:1980, published by the International Electrotechnical Commission (IEC). The UK p

9、articipation in its preparation was entrusted by Technical Committee GEL/15, Insulating material, to Subcommittee GEL/15/3, Material specifications, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on interpretation, o

10、r proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement int

11、ernational or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to in

12、clude all the necessary provisions 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. Summary of pages This document comprises a front cover, an inside front cover, pag

13、es i and ii, theENtitlepage, pages2 to4 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 theinside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60674-1 February 1998 IC

14、S 01.040.29; 29.035.20 Descriptors: Electrical insulating materials, solid electrical insulating materials, insulating films, plastic film, definitions, specifications English version Specification for plastic films for electrical purposes Part1:Definitions and general requirements (IEC 60674-1:1980

15、) Spcification pour les films en matire plastique usages lectriques Partie 1: Dfinitions et prescriptions gnrales (CEI 60674-1:1980) Bestimmung fr Isolierfolien fr elektrotechnische Zwecke Teil 1: Begriffe und allgemeine Anforderungen (IEC 60674-1:1980) This European Standard was approved by CENELEC

16、 on 1998-01-01. 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 standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards

17、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 other language made by translation under the responsibility of a CENELEC member into its own language and notified

18、to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Swi

19、tzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1998 CENELEC All rights of exploitation in any form a

20、nd by any means reserved worldwide for CENELEC Members Ref. No. EN 60674-1:1998 EEN60674-1:1998 BSI 05-1999 2 Foreword The text of the International Standard IEC60674-1:1980, prepared by SC15C, Specifications, of IECTC15, Insulating materials, was submitted to the formal vote and was approved by CEN

21、ELEC as EN60674-1 on1998-01-01 without any modification 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 or by endorsement (dop) 1998-12-01 latest date by which the national standards conflicting with

22、 the EN have to be withdrawn (dow) 1998-12-01EN60674-1:1998 BSI 05-1999 3 Introduction This standard is one of a series which deals with plastic films for electrical purposes. The series will consist of three parts: Part1: Definitions and general requirements; Part 2: Methods of test (Publication 67

23、4-2); Part 3: Specifications for individual materials (Publication 674-3). 1 Scope This standard is applicable to plastic films used for electrical purposes. This Part 1 gives definitions for, and specifies general requirements to be fulfilled by, plastic films used for electrical purposes. 2 Defini

24、tions For the purpose of this standard, the following definitions apply: 2.1 bias camber when a length of slit film is laid flat on a plain surface, it will usually lie with its edges forming parallel straight lines. However, if the film contains a distortion such that one edge of the slit length is

25、 slightly longer than the other, the length will lie with its edges forming parallel, curved lines and the slit film is said to exhibit “bias” this form of distortion is sometimes known as the “curved sword effect”, and film exhibiting this distortion is said to “wander” or is said not to “track” co

26、rrectly 2.2 sag if a length of slit film is supported near its extremities (e.g.by draping it over a pair of parallel rollers or bars) so that the film is under light, uniform mechanical tension and lies approximately in a horizontal plane, the length of film will usually form a smooth catenary surf

27、ace however, if the film contains a distortion such that certain areas lie below the general level of the catenary surface, the film is said to exhibit “sag” or “bagginess”. This distortion arises from the stretching of certain portions of the film either during manufacture or subsequent handling wh

28、ere sag occurs at a slit edge, it may be known as “edge sag”, “edge flute”, “cockle” or “droop” when the sag occurs along a line within the width of the film it forms a “sag lane”, “pucker lane”, “stretch lane” or “gauge band” 2.3 telescoping the axial shifting of sections of the reel of film relati

29、ve to other annular sections. The effect is so named because of the visual similarity with the draw-tubes of a partly extended optical telescope 3 General requirements 3.1 Quality All material in any one consignment shall be consistent. The properties of the film shall be within the limits of this s

30、tandard throughout the whole length of each roll. The surface shall be uniform and the film shall be substantially free from defects such as creases, tears, gas bubbles, pinholes, inclusions of foreign matter. 3.2 Rolls The outside diameter of each roll shall be within the range agreed between the p

31、urchaser and supplier. The rolls shall be essentially circular and shall be wound sufficiently tightly to avoid telescoping during transit and subsequent normal use. Rolls shall be capable of being unrolled easily. There shall be no hard bands which adversely affect unwinding and use. In any roll ea

32、ch end face shall at no point depart from its principal plane perpendicular to the axis of the core by more than 1mm unless otherwise specified. 3.3 Joins (splices) The number of joins (splices), where these are permitted, shall be in accordance with the requirements given in Part 3 (under considera

33、tion). Where joins are permitted, they shall be suitable to withstand the mechanical and thermal stresses normally encountered in subsequent use. Special requirements such as visibility, heat or solvent resistance, shall be agreed upon between purchaser and supplier. Joins shall be as thin as possib

34、le and may be made by fusion processes such as, for example, welding or with adhesive tape. Adhesive tape, if used, shall be preferably not thicker than the film itself and there shall be no exudation of or from the adhesive. Joins shall not impair the unwinding of the film and shall be clearly visi

35、ble when viewed from the end faces of the roll, unless otherwise agreed between purchaser and supplier. 3.4 Cores The material shall be supplied rolled on a round core. The core shall not flake, collapse or distort under winding tension, nor shall it damage or cause degradation of the film.EN60674-1

36、:1998 4 BSI 05-1999 The purchaser and supplier shall agree on all core properties and dimensions including the associated tolerances. The preferred inner diameters of the core are76mm and150mm with a tolerance of 1%. Cores may protrude at each end of the roll or be flush with the ends and the purcha

37、ser and supplier should agree on which arrangement is to be used and on the associated tolerances. 4 Dimensions 4.1 Thickness Unless otherwise specified in Part3, the measured thickness shall be within 10% of the nominal value when determined in accordance with the method described in Part2. 4.2 Wid

38、th The preferred width shall be given in the sheets of Part3. Unless otherwise specified in Part3, the tolerance on the measured width shall be as follows: The width shall be measured as stated in Part2. 4.3 Length The requirements with regard to length will be covered in Part3. 5 Packaging and labe

39、lling 5.1 Packaging The individual rolls shall be packaged in such a manner that they are adequately protected from damage and deterioration during normal conditions of transit and storage. 5.2 Labelling Each unit pack, and each package containing a number of unit packs, shall have at least the foll

40、owing information clearly and indelibly marked on it: a) the number of the appropriate standard based on these specifications; b) the type of the film (sheet number of Part 3); c) the nominal thickness of the film; d) the width of the film; e) the net weight of the film; f) other information require

41、d by Part 3. Width Tolerance Up to and including 50 mm Over 50 mm to 300 mm Over 300 mm to 450 mm Over 450 mm to 750 mm 0.5 mm 1.0 mm 2.0 mm 4.0 mmblankBS EN 60674-1:1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for prep

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