1、BRITISH STANDARDBS EN 61061-1:2006Non-impregnated densified laminated wood for electrical purposes Part 1: Definitions, designation and general requirements The European Standard EN 61061-1:2006 has the status of a British StandardICS 17.220.99; 29.035.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g5
2、0g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 61061-1:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2007 BSI 2
3、007ISBN 978 0 580 50102 9National forewordThis British Standard was published by BSI. It is the UK implementation of EN 61061-1:2006. It is identical with IEC 61061-1:2006. It supersedes BS EN 61061-1:1998 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committe
4、e GEL/15, Material specifications, to Subcommittee GEL/15/3, Rigid fibrous reinforced laminates for electrical purposes.A list of organizations represented on GEL/15/3 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract.
5、 Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN 61061-1 NORME EUROPENNE EUROPISCHE NORM December 2006 CENELEC European Committee for Elect
6、rotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref.
7、No. EN 61061-1:2006 E ICS 17.220.99; 29.035.01 Supersedes EN 61061-1:1998English version Non-impregnated densified laminated wood for electrical purposes Part 1: Definitions, designation and general requirements (IEC 61061-1:2006) Stratifis de bois densifi, non imprgns, usages lectriques Partie 1: D
8、finitions, dsignation et prescriptions gnrales (CEI 61061-1:2006) Nicht-imprgniertes Kunstharzpressholz fr elektrotechnische Zwecke Teil 1: Begriffe, Bezeichnung und allgemeine Anforderungen (IEC 61061-1:2006) This European Standard was approved by CENELEC on 2006-11-01. CENELEC members are bound to
9、 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 may be obtained on application to the Centra
10、l 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 to the Central Secretariat has the same stat
11、us as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Port
12、ugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 15/343/FDIS, future edition 3 of IEC 61061-1, prepared by IEC TC 15, Solid electrical insulating materials, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC a
13、s EN 61061-1 on 2006-11-01. This European Standard supersedes EN 61061-1:1998. The main changes from EN 61061-1:1998 are as follows: addition of application use and safety statements; redefinition of ring and sheet; appropriate additions to the subclauses; reformatting of text to bring it in line wi
14、th current IEC document format. 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) 2007-08-01 latest date by which the national standards conflicting with the EN have to be withd
15、rawn (dow) 2009-11-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61061-1:2006 was approved by CENELEC as a European Standard without any modification. _ EN 61061-1:2006 2 INTERNATIONAL STANDARD IEC61061-1Third edition2006-10Non-impregnated den
16、sified laminated wood for electrical purposes Part 1: Definitions, designation and general requirements Reference number IEC 61061-1:2006(E) EN 61061-1:2006NON-IMPREGNATED DENSIFIED LAMINATED WOOD FOR ELECTRICAL PURPOSES Part 1: Definitions, designation and general requirements 1 Scope This part of
17、IEC 61061 includes the definitions required for the understanding of all three parts of the standard, the designation of the material types and the general requirements applicable to non-impregnated densified laminated wood for electrical purposes. This specification is intended to cover only sheets
18、 and rings of nominal thicknesses between 6 mm and 100 mm, inclusive. Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application should be based on the actual requirements necessary for adequate perf
19、ormance 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 references The following referenced documents are indispensa
20、ble for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60296, Unused mineral insulating oils for transformers and switchgear IEC 61061-2, Non-impregn
21、ated, densified laminated wood for electrical purposes Part 2: Methods of test IEC 61061-3 (all sheets), Non-impregnated, densified laminated wood for electrical purposes Part 3: Specifications for individual materials 3 Terms and definitions For the purposes of this document, the following terms an
22、d definitions apply: 3.1 veneer single non-laminated ply with a thickness of not more than 2,5 mm in the non-pressed condition, for example produced from beech (fagus silvatica), North-American maple (acer saccherem) or birch (betula pendula) 3.2 non-impregnated densified laminated wood laminated wo
23、od made from layers of wood veneer bonded together under controlled conditions of heat and pressure using a thermosetting synthetic resin adhesive EN 61061-1:2006 4 3.3 sheet material with parallel or crosswise arrangement of veneers 3.4 direction A and direction B two directions in the plane of lam
24、inations, mutually at right angles, one of which is parallel with an edge of the sheet 3.5 ring ring form manufactured either by a) cutting out the ring from a sheet made with crosswise arrangement of veneers (positioned at 90 to one another); b) pressing substantially tangentially arranged veneers
25、laid up in a circular form; or c) pressing veneers assembled in a circular form, with each layer arranged at 45 to the layer preceding it NOTE Because of the different methods of manufacture which may be used, the three types clearly differ in their properties and therefore the required type of ring
26、 should be specified in the purchase contract. 4 Designation 4.1 General The types of material covered by this specification shall be designated by: the shape of the material: sheet or ring; the number of the IEC standard: IEC 61061; a letter to denote the arrangement of the veneers according to 4.2
27、; a digit to denote the range of densities according to 4.3; a letter to denote the kind of wood according to 4.4; the dimensions of the sheet: thickness in millimetres width in millimetres length in millimetres; ring: thickness in millimetres radial ring width in millimetres outer diameter in milli
28、metres. 4.2 Arrangements of veneers The arrangement of veneers shall be denoted by the following letters: P: parallel arrangement; C: crosswise arrangement; T: tangential arrangement; A: veneers arranged at 45 to the preceding layer. NOTE In arrangements P and T, for manufacturing reasons, up to 20
29、% of the veneers may be arranged in such a manner that the fibres are perpendicular to the fibres of the rest of the veneers. When arranging the layers crosswise, it is permissible to have two veneers on top of each other in the same direction, in order to compensate for the variation in mass of eac
30、h ply of veneer. EN 61061-1:2006 5 4.3 Apparent density in grams per cubic centimetre (g/cm3) The apparent density shall be denoted by the following digits: 1: apparent density 0,7 0,9 g/cm3; 2: apparent density 0,9 1,1 g/cm3; 3: apparent density 1,1 1,2 g/cm3; 4: apparent density 1,2 1,3 g/cm3. 4.4
31、 Kind of wood The kind of wood shall be denoted by the following letters: B: birch; M: maple; R: beech. 4.5 Examples of complete IEC designations Sheet of non-impregnated, densified, laminated wood with crosswise arrangement of veneers of beech, with an apparent density greater than or equal to 1,1
32、g/cm3but less than 1,2 g/cm3, with a thickness of 10 mm, a width of 1 000 mm and a length of 2 000 mm: Sheet IEC 61061 C3R 10 1 000 2 000 Ring of non-impregnated, densified, laminated wood with tangential arrangement of veneers of beech, with an apparent density greater than or equal to 0,9 g/cm3but
33、 less than 1,1 g/cm3, with a thickness of 80 mm, a radial ring width of 100 mm and an outer diameter of 1 500 mm: Ring IEC 61061 T2R 80 100 1 500 5 General requirements 5.1 Composition The material shall be produced from wood veneer layers and thermosetting resin. All materials, i.e. the wood veneer
34、s and the resin, shall be resistant to transformer oils according to IEC 60296 and shall not have any detrimental effect on them, according to the test method in IEC 61061-2. 5.2 Defects all types No diseased areas or electrically conducting inclusions are permitted, but natural staining due to caus
35、es other than fungus attack may be accepted. For sheets, the direction of the fibres shall not deviate by more than 5 1 from being parallel to the edge of the sheet. 5.3 Finish 5.3.1 Sheets Sheets shall be plane, smooth and free from local deformations. All joints between veneers shall be reasonably
36、 close-butted and substantially free from gaps and overlaps. Sheets shall be supplied with trimmed edges, unless otherwise agreed upon between the customer and the manufacturer. NOTE With some veneers, it is not possible to be totally free of voids, gaps and overlaps. EN 61061-1:2006 6 5.3.2 Rings R
37、ings shall have all joints reasonably close-butted or overlapped, and be substantially free from gaps. NOTE Depending upon the application, open spaces in the laminate are not detrimental to the use of the ring, for example in oil filled transformers. 5.4 Thickness The nominal thickness should be on
38、e of the preferred thicknesses given in Table 1, unless otherwise agreed between purchaser and supplier. The deviation from the nominal thickness of a sheet measured according to IEC 61061-2, shall not exceed the appropriate value specified in IEC 61061-3. 5.5 Machinability When sawn, turned, planed
39、 or milled in accordance with the recommendations of the manu-facturer, the sheet or ring shall not show undue chipping or any sign of splitting or cracking. 5.6 Flatness Tests for flatness are given in IEC 61061-2, and requirements for flatness are given in the relevant sheet of IEC 61061-3. 6 Cond
40、itions of supply The sheets and rings shall be supplied in packing which ensures adequate protection during transport, handling and storage. The IEC designation of the material and the number of sheets or rings and the mass shall be clearly marked on the outside of each package. Where different type
41、s of sheets or rings are contained in the same package, the required information may be on a note accompanying the package. Any marking on individual sheets or rings shall be as specified in the purchase contract. Where marking is carried out with a stamp, the stamping ink used shall not impair the
42、electrical properties of the material or the insulating oil. Table 1 Preferred nominal thickness Type of laminated sheet or ring Preferred nominal thickness mm All types 6,0; 8,0; 10,0; 14,0; 16,0; 20,0; 30,0; 40,0; 50,0; 60,0; 70,0; 80,0; 90,0; 100,0. _ EN 61061-1:2006 7 Annex ZA (normative) Normat
43、ive references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced do
44、cument (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60296 -1)Fluids for electrotechnical applications - Unused mineral insulating oils for tr
45、ansformers and switchgear EN 60296 + corr. September 20042)2004 IEC 61061-2 -1)Specification for non-impregnated, densified laminated wood for electrical purposes Part 2: Methods of test EN 61061-2 + corr. February 20012)2002 IEC 61061-3 Series Non-impregnated densified laminated wood for electrical
46、 purposes Part 3: Specifications for individual materials EN 61061-3 Series 1)Undated reference. 2)Valid edition at date of issue. EN 61061-1:2006 8 blankBS EN 61061-1:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for prepa
47、ring British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions.
48、It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside f
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