1、BRITISH STANDARDBS EN 60371-3-4:1996IEC 371-3-4: 1992Incorporating amendment no. 1Specification for insulating materials based on mica Part 3: Specifications for individual materials Sheet 4: Polyester film-backed mica paper with a B-stage epoxy resin binderThe European Standard EN 60371-3-4:1995, i
2、ncorporating amendment A1:2006, has the status of a British StandardICS 29.040.20BS EN 60371-3-4:1996 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 February 19
3、96 BSI 2007The following BSI references relate to the work on this standard:Committee reference GEL/15Draft announced in BSI News September 1995ISBN 0 580 25204 3Committees responsible for this British StandardThe preparation of this British Standard was entrusted to Technical Committee GEL/15, Insu
4、lating materials, upon which the following bodies were represented:British Ceramic Research Ltd.British Industrial Ceramic Manufacturers AssociationBritish Telecommunications plcDepartment of Trade and Industry (National Physical Laboratory)Electrical and Electronic Insulation Association (BEAMA Ltd
5、.)Electricity AssociationFederation of the Electronics IndustryMinistry of DefenceRotating Electrical Machines Association (BEAMA Ltd.)Transmission and Distribution Association (BEAMA Ltd.)The following bodies were also represented in the drafting of the standard, through subcommittees and panels:ER
6、A Technology Ltd.Mica Trade ClubAmendments issued since publicationAmd. No. Date Comments16843 31 January 2007 See national forewordBS EN 60371-3-4:1996 BSI 2007 iContentsPageCommittees responsible Inside front coverNational foreword iiForeword 2Introduction 31Scope 32 Normative references 33 Design
7、ation 34 Requirements: raw materials 35 Requirements: compositions and tolerances 46 Requirement for material (as received) 47 Requirements for material after curing 58 Packing 5Annex ZA (normative) Normative references to international publications with their corresponding European publications 6Ta
8、ble 1 Composition 4Table 2 Tolerance on width 4Table 3 Dissipation factor requirements 5List of references Inside back coverBS EN 60371-3-4:1996 ii BSI 2007National forewordThis British Standard was published by BSI. It is the UK implementation of EN 60371-3.4, incorporating amendment A1:2006. It is
9、 identical with IEC 371-3-4:1992, incorporating amendment 1:2006.The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. Tags indicating changes to IEC text carry the number of the IEC amendment. For example, text altered by IEC amendment 1 is indicated i
10、n the text by !“.The UK participation in its preparation was entrusted to Technical Committee GEL/15, Insulating materials.A list of organisations represented on GEL/15 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract
11、. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 60371-3-4June 1995+A1November 2006ICS 29.040.20 Supersedes HD 352.3.4 S1:1994Descriptors: Electrical insulating mater
12、ials, solid electrical insulating materials, electrical insulating paper, mica material, backed materials, polyester, epoxy resins, specificationsEnglish versionSpecification for insulating materials based on micaPart 3: Specifications for individual materialsSheet 4: Polyester film-backed mica pape
13、r with a B-stage epoxy resin binder(IEC 371-3-4:1992)Spcification pour les matriaux isolants base de micaPartie 3: Spcifications pour matriaux particuliersFeuille 4: Papier de mica renforc dun film polyester avec un agglomrant en rsine poxyde ltat B(CEI 371-3-4:1992)Bestimmung fr Glimmererzeugnisse
14、fr elektrotechnische ZweckeTeil 3: Bestimmungen fr einzelne MaterialienBlatt 4: Polyesterfolienverstrktes Glimmerpapier mit Expoxidharz-Bindemittel im B-Zustand(IEC 371-3-4:1992)This European Standard was approved by CENELEC on 1995-05-15. CENELEC members are bound to comply with the CEN/CENELEC Int
15、ernal 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 may be obtained on application to the Central Secretariat or to any CENELEC m
16、ember.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 to the Central Secretariat has the same status as the official versions.CENELE
17、C members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.CENELECEuropean Committee for Electrotechnical StandardizationComit
18、 Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B-1050 Brussels 1995 Copyright reserved to CENELEC membersRef. No. EN 60371-3-4:1995 EEN 60371-3-4:1995 BSI 20072ForewordThe text of the International Standard IEC 371-3
19、-4:1992, prepared by SC 15C, Specifications, of IEC TC 15, Insulating materials, was approved by CENELEC as HD 352.3.4 S1 on 1994-03-08.This Harmonization Document was submitted to the formal vote for conversion into a European Standard and was approved by CENELEC as EN 60371-3-4 on 1995-05-15.The f
20、ollowing date was fixed: Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC.Foreword to amendment A1The text of document 15/332/FDIS, future amendment 1 to IEC 60371-3-4:1992, prepared by IEC TC 15, Standar
21、ds on specifications for electrical insulating materials, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 60371-3-4:1995 on 2006-10-01.The following dates were fixed: Endorsement noticeThe text of amendment 1:2006 to the International Standard IEC 603
22、71-3-4:1992 was approved by CENELEC as an amendment to the European Standard without any modification. 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 amendment has to be
23、implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-07-01 lastest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2009-10-01EN 60371-3-4:1995 BSI 2007 30 Introduction!This International Standard is
24、 one of a series which deals with insulating materials for use in electrical equipment built up from mica splittings or mica paper, with or without reinforcement, and with mica paper in its pure state.The series consists of the following three parts: Part 1: Definitions and general requirements (IEC
25、 60371-1); Part 2: Methods of test (IEC 60371-2); Part 3: Specifications for individual materials (IEC 60371-3).This standard contains one of the sheets comprising part 3, as follows: Sheet 4: Polyester film-backed mica paper with a B-stage epoxy resin binder.“1 ScopeThis International Standard give
26、s requirements for electrical insulating materials made by combining mica paper with a single polyester film and impregnating the mica paper with an epoxy resin. The material is supplied in a flexible state with the resin in the B-stage for final cure after application. It may be supplied in the for
27、m of sheets or rolls.The specification covers material having nominal thickness from 0,16 mm to 0,23 mm.!Materials which conform to this specification meet established levels of performance. However, the selection of materials by a user for a specific application should be based on the actual requir
28、ements necessary for adequate performance in that application and not based on this specification alone. Safety warning: It is the responsibility of the user of the methods contained or referred to in this document to ensure that they are used in a safe manner.“2 Normative referencesThe following no
29、rmative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this International Stan
30、dard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.!IEC 60243-1:1998, Electric strength of insulating materials Test methods Part 1: T
31、ests at power frequencies.IEC 60371-2:2004, Specification for insulating materials based on mica Part 2: Methods of test.IEC 60371-3-2:2005, Insulating materials based on mica Part 3: Specifications for individual materials Sheet 2: Mica paper.IEC 60674-3-2:1992, Specification for plastic films for
32、electrical purposes Part 3: Specifications for individual materials Sheet 2: Requirements for balanced biaxially oriented polyethylene terephthalate (PET) films used for electrical insulation.“ 3 Designation!When ordering materials to this specification, only the specification and type numbers need
33、be quoted (see Table 1).Example: IEC 60371-3-4: type 4.1.01The type number is derived from: Thus giving type number 4.1.01.“The descriptive code quoted in Table 1, for example F23/M150/R54 for type 4.1.01, is derived from: film thickness (F) 23 4m, muscovite mica content (M) 150 g/m2, resin content
34、(R) 54 g/m2.NOTE For phlogopite mica paper the letter “M” is replaced by the letter “P”.4 Requirements: raw materials4.1 Mica paper!Mica paper referred to in this specification shall comply with the requirements of IEC 60371-3-2.“4.2 Polyester film!Plastic films used as backing material shall be PET
35、 and shall comply with the requirements of IEC 60674-3-2.“4.3 Epoxy resinAny epoxy resin system may be used which enables the material to meet the requirements of this specification. the specification sheet number 4 followed by the sheet table number 1 followed by the number of the product in the sh
36、eet table 01EN 60371-3-4:1995 4 BSI 20075 Requirements: compositions and tolerances!When tested by the method of clause 7 of IEC 60371-2, the composition of the products shall lie within the limits of Table 1.“6 Requirement for material (as received)6.1 GeneralAll materials in any one consignment sh
37、all have the same properties, within the limits of this specification, throughout the length of each roll.The surfaces shall be uniform and free from defects such as bubbles, pin-holes, creases and flaws.Material supplied in rolls shall be capable of being unrolled continuously without damage, and t
38、he force required to unroll the material shall be substantially uniform. Where interleaving is necessary or required by the purchaser, it shall not have any deleterious effect.Table 1 CompositionTo prevent damage to the mica paper component during winding, the unwinding tension shall be less than:25
39、 N/10 mm for 32 g/m2film (23 4m film thickness),45 N/10 mm for 70 g/m2film (50 4m film thickness).Unless otherwise specified in the purchase contract the material shall be rolled with the mica surface on the outside.6.2 WidthThis specification contains no requirement for width of tape. However, the
40、following widths are preferred: 10, 12, 15, 20, 25, 30, 40 and 50 mm.The maximum trimmed width of full width material and sheet normally available is 1 000 mm.The tolerance on the width of the material shall be as in Table 2. Table 2 Tolerance on width6.3 Thickness!Measure the thickness in accordanc
41、e with clause 4 of IEC 60371-2, using the apparatus given in 4.1.1 of that standard, making 10 measurements of one thickness of material.“ The measured values shall be in accordance with the requirements of Table 1.6.4 LengthThere is no requirement in this specification for roll length, and this sho
42、uld therefore be subject to the purchase contract.6.5 CoresThe tape shall be supplied compactly wound on cores of 25 mm, 40 mm, 55 mm, or 76 mm ID which shall be free from sharp edges.The width of the cores in relation to that of the tape should be subject to agreement between purchaser and supplier
43、.Full width material and material wider than 100 mm shall be supplied on 55 mm or 76 mm cores.TypeDescriptive codePET film substanceMica content Resin contentMass/unit areaPermissible thickness rangeVolatile contentg/m2g/m2g/m2g/m2mm Max. %Nom. Tol. Nom. Tol. Nom. Tol. Nom. Tol. Mean Individual4.1.0
44、14.1.024.1.034.1.044.1.054.1.064.1.074.1.084.1.094.1.104.1.11F23/M150/R54F23/M150/R70F23/M150/R100F23/M160/R80F23/P160/R80F50/M160/R80F50/P160/R80F23/M180/R90F23/P180/R90F50/M180/R90F50/P180/R903232323232707032327070333337733771501501501601601601601801801801801212121313131315151515547010080808080909
45、0909081420161616161818181823625228227227231031030230234034023252827273131303034340,150,170,150,170,160,180,160,180,160,180,190,210,190,210,170,190,170,190,220,240,220,240,140,180,140,180,150,190,150,190,150,190,180,220,180,220,160,200,160,200,210,250,210,251,01,01,01,01,01,01,01,01,01,01,0Nominal wi
46、dthmmTolerancemmk 20 20 k 500 500 0,5 1,0 5,0EN 60371-3-4:1995 BSI 2007 56.6 JoinsThe number of rolls with joins shall be limited to 25 % of any one consignment. Joined rolls of length less than 100 m shall contain no more than one join. The number of joins in rolls of length of 100 m or greater sho
47、uld be subject to the purchase contract.The method of making joins should be subject to the purchase contract.6.7 StiffnessThe stiffness of the material should be subject to the purchase contract. !When the stiffness is specified, the material should be tested by the method of clause 11 in IEC 60371
48、-2.“6.8 Resin flow!When tested at (160 2) C by the method of clause 14 of IEC 60371-2, resin flow shall be between 40 % and 70 %.“7 Requirements for material after curing7.1 GeneralWhen required by the purchaser the supplier shall provide evidence that the material meets the requirements of clause 7
49、.!For the following tests, the specimens shall be prepared in accordance with method 1 of clause 3 of IEC 60371-2, the number of layers being chosen to give a final thickness as required for the measurement of properties after curing.“ Curing conditions should follow the recommendations of the supplier.7.2 Flexural strength!When tested by the method of clause 9 of IEC 60371-2, the flexural strength shall be not less than 150 MPa at (23 C 2 K) nor less than 100 MPa at (155 C 5
