1、 IEC 60763-3-1 Edition 2.0 2010-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Laminated pressboard for electrical purposes Part 3: Specifications for individual materials Sheet 1: Requirements for laminated precompressed pressboard, Types LB3.1A.1 and LB3.1A.2 Cartons comprims et contrecolls usages
2、 lectriques Partie 3: Spcifications pour matriaux particuliers Feuille 1: Exigences relatives aux cartons prcomprims contrecolls, Types LB3.1A.1 et 3.1A.2 IEC 60763-3-1:2010 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specifie
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17、IONAL STANDARD NORME INTERNATIONALE Laminated pressboard for electrical purposes Part 3: Specifications for individual materials Sheet 1: Requirements for laminated precompressed pressboard, Types LB3.1A.1 and LB3.1A.2 Cartons comprims et contrecolls usages lectriques Partie 3: Spcifications pour ma
18、triaux particuliers Feuille 1: Exigences relatives aux cartons prcomprims contrecolls, Types LB3.1A.1 et 3.1A.2 INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE E ICS 29.035.10 PRICE CODE CODE PRIX ISBN 978-2-88912-144-1 Registered trademark of the International E
19、lectrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 60763-3-1 IEC:2010 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ LAMINATED PRESSBOARD FOR ELECTRICAL PURPOSES Part 3: Specifications for individual materials Sheet 1: Requirements for laminated precompressed pre
20、ssboard, Types LB3.1A.1 and LB3.1A.2 FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questi
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30、 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60763-3-1 has been prepared by IEC technical committee 15: Soli
31、d electrical insulating materials. This second edition cancels and replaces the first edition published in 1992. This edition constitutes a technical revision. The main changes with respect to the previous edition are listed below: requirements for the new properties in Part 2 have been integrated;
32、specifications for type LB3.3.1 and LB3.3.2 have been deleted. 60763-3-1 IEC:2010 3 The text of this standard is based on the following documents: CDV Report on voting 15/537/CDV 15/567/RVC Full information on the voting for the approval of this standard can be found in the report on voting indicate
33、d in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. Future standards in this series will carry the new general title as cited above. Titles of existing standards in this series will be updated at the time of the next edition. A list of all the p
34、arts in the IEC 60763 series can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the
35、publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 4 60763-3-1 IEC:2010 LAMINATED PRESSBOARD FOR ELECTRICAL PURPOSES Part 3: Specifications for individual materials Sheet 1: Requirements for laminated precompressed pressboard, Types LB3.1A.1 and LB3.1A.2 1 Scope T
36、his sheet of IEC 60763-3 gives the requirements for laminated precompressed boards comprised of 100 % sulphate wood pulp. 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
37、 the actual requirements necessary for adequate performance in that application and not based on this specification alone. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undat
38、ed references, the latest edition of the referenced document (including any amendments) applies. IEC 60763-1:2010, Laminated pressboard for electrical purposes Part 1: Definitions, classification and general requirements IEC 60763-2:2007, Specification for laminated pressboard Part 2: Methods of tes
39、t 3 Designation LB3.1A.1 laminated precompressed board made from 100 % sulphate wood pulp, bonded with a casein-type glue. LB3.1A.2 laminated precompressed board made from 100 % sulphate wood pulp, bonded with a non-aqueous resin. 4 General requirements Materials shall conform to the general require
40、ments given in IEC 60763-1 and to the specific requirements of the appropriate type given in Table 1 of this sheet when tested according to the methods stipulated in IEC 60763-2. 60763-3-1 IEC:2010 5 Table 1 Specific requirements with regard to the appropriate type of board LB3.1A.1 LB3.1A.2 Bonding
41、 agent Casein Non-aqueous Property Test method (clause or subclause of IEC 60763-2) Unit Max. or Min. Thickness deviation 12 mrn 12mm 5.1 % % Max. Max. 5 4 5 4 Flatness 500 mm 50 mm 5.1.4 mm Max. 5 3 2 4 2 1 Flexural strength MD CMD 6.1 MPa MPa Min. Min. 100 80 110 90 Compressibility : C C rev7.1 %
42、 Max. Min. 3.5 65 3 70 Electric strength in oil Parallel to layers 8 kV/mm Min. 8 8 Internal ply strength Dried, tested at 23 C Dried, tested at 120 C, retention Oil impregnated, tested at 23 C, retention Aged for 1 week at 120 C in oil, tested at 23 C retention 9 MPa % % % Min. Min. Min. Min. 80 6
43、0 80 90 90 60 80 90 Apparent density 10 g/cm 3Range 1,15 1,3 1,15 1,35 Moisture content 11 % Max. 8 5 Shrinkage: MD CMD Thickness 12 % % % Max. Max. Max. 0,5 0,7 6 0,4 0,6 4 Oil absorption 13 % Min. 6 5 Ash content 14 % To be agreed between supplier and purchaser Contamination of dielectric liquids
44、Neutralisation value Sludge content Dissipation factor 15 mg KOH/g mg/l Max. 0,08 500 0,005 0,05 500 0,005 Conductivity of aqueous extract 16 mS/m Max. 15 10 pH of aqueous extract 17 Range 6 - 10 5 - 8 _ 6 60763-3-1 CEI:2010 COMMISSION LECTROTECHNIQUE INTERNATIONALE _ CARTONS COMPRIMS ET CONTRECOLLS
45、 USAGES LECTRIQUES Partie 3: Spcifications pour matriaux particuliers Feuille 1: Exigences relatives aux cartons prcomprims contrecolls, Types LB3.1A.1 et 3.1A.2 AVANT-PROPOS 1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation compose de lensemble de
46、s comits lectrotechniques nationaux (Comits nationaux de la CEI). La CEI a pour objet de favoriser la coopration internationale pour toutes les questions de normalisation dans les domaines de llectricit et de llectronique. A cet effet, la CEI entre autres activits publie des Normes internationales,
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