1、BRITISH STANDARD BS EN 60455-3-4:2003 Resin based reactive compounds used for electrical insulation Part 3: Specifications for individual materials Sheet 4: Filled polyurethane compounds The European Standard EN 60455-3-4:2003 has the status of a British Standard ICS 29.035.01 BS EN 60455-3-4:2003 T
2、his British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2003 BSI 31 July 2003 ISBN 0 580 42361 1 National foreword This British Standard is the official English language version of EN 60455-3-4:2003. It is identical with IEC 60455-3-4:2003. It
3、 supersedes BS 5664-3.4:1995 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee GEL/15, Insulating material, to Subcommittee GEL/15/3, Material specifications, which has the responsibility to: A list of organizations represented on this subcommittee can
4、be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” fa
5、cility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligati
6、ons. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of p
7、ages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN
8、 STANDARD EN 60455-3-4 NORME EUROPENNE EUROPISCHE NORM July 2003 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 2003 CENELEC -
9、All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60455-3-4:2003 E ICS 29.035.01 Supersedes HD 307.3.4 S1:1987English version Resin based reactive compounds used for electrical insulation Part 3: Specifications for individual materials Sheet
10、4: Filled polyurethane compounds (IEC 60455-3-4:2003) Composs ractifs base de rsines utiliss comme isolants lectriques Partie 3: Spcifications pour matriaux particuliers Feuille 4: Composs rsineux de polyurthanne chargs (CEI 60455-3-4:2003) Reaktionsharzmassen fr die Elektroisolierung Teil 3: Anford
11、erungen an einzelne Werkstoffe Blatt 4: Gefllte Polyurethanharzmassen (IEC 60455-3-4:2003) This European Standard was approved by CENELEC on 2003-06-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the
12、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 member. This European Standard exists in three official versions (English, French, Germ
13、an). 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. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Re
14、public, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. Foreword The text of document 15C/1464/FDIS, future edition 2 of IEC 60455-3-4, prepared by SC 15C, Specific
15、ations, of IEC TC 15, Insulating materials, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60455-3-4 on 2003-06-01. This European Standard replaces HD 307.3.4 S1:1987. References to HD 307.2 S1:1986 have been updated to EN 60455-2:1999. No significant technical chan
16、ges have been made. 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) 2004-03-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2
17、006-06-01 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. _ Endorsement notice The text of the International Standard IEC 60455-3-4:2003 was approved by CENELEC as a European Standard without any modifi
18、cation. _ Page2 EN6045534:2003INTRODUCTION This part of IEC 60455 is one of a series which deals with specifications for resin based reactive compounds used for electrical insulation. The series consists of three parts: Part 1: Definitions and general requirements (IEC 60455-1) Part 2: Methods of te
19、st (IEC 60455-2) Part 3: Specifications for individual materials (IEC 60455-3) IEC 60455-3-4 is one of the specification sheets comprising Part 3, as follows: Sheet 4: Filled polyurethane compounds Page3 EN6045534:2003RESIN BASED REACTIVE COMPOUNDS USED FOR ELECTRICAL INSULATION Part 3: Specificatio
20、ns for individual materials Sheet 4 : Filled polyurethane compounds 1 Scope This part of IEC 60455 contains the requirements for filled polyurethane resinous compounds in the cured form for classes PUR-F-4 to PUR-F-8. 2 Normative references The following referenced documents are indispensable for th
21、e 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 60455-2:1998, Resin-based reactive compounds used for electrical insulation Part 2: Methods of test IEC
22、60707:1999, Flammability of solid non-metallic materials when exposed to flame sources List of test methods 3 Requirements The requirements for filled polyurethane resinous compounds in the cured form are given in Table 2. If not otherwise specified, the requirements are for (23 2) C. NOTE Materials
23、 for use in low temperature conditions may require additional tests not specified in this part of IEC 60455 to establish their suitability. 4 Special requirements When any of the following special properties are prescribed in the purchase contract, the method of test given below shall be used. Table
24、 1 Requirements for filled polyurethane compounds in the uncured form Property Method of test in IEC 60455-2 Subclause Density 5.2 Viscosity 5.3 Shelf life 5.4 Gel time 5.17 Exothermic temperature peak 5.18 Page4 EN6045534:2003Table 2 Requirements for filled polyurethane compounds in the cured form
25、Method of test according to IEC 60455-2 Requirements for compounds types Properties Subclause Unit Value PUR-F-4 PUR-F-5 PUR-F-6 PUR-F-7 PUR-F-8 Density 5.2 g/cm 3 Range 1,20 1,70 Flexural strength (3 points) at rupture 6.3.3 MPa Min. 100 80 60 40 Not applicable Tensile strength at rupture 6.3.1 MPa
26、 Min. 50 40 15 10 Elongation at break 6.3.1 % Min. 1 8 12 15 20 60 90 Impact strength 6.3.4 kJ/m 2 Min. 10 10 Not applicable Temperature of deflection under load 6.4.4.2 C Min. 100 75 45 Not applicable Glass transition temperature 6.4.4.1 C Min. Under consideration Water absorption 6.5.1 mg Max. 60
27、100 180 Volume resistivity 6.6.1 cm Min. 1 10 13 1 10 12 23 C, 48 Hz to 62 Hz Max. 0,01 0,03 0,06 Dissipation factor 90 C, 48 Hz to 62 Hz 6.6.2 Max. Under consi- deration 0,03 0,04 0,08 0,10 23 C, 48 Hz to 62 Hz Max. 4 5 4,5 5,5 5 6 Permittivity 90 C, 48 Hz to 62 Hz 6.6.2 Max. 5 7 Electric strength
28、a 6.6.3 kV/mm Min. 20 15 Tracking resistance 6.6.4 600 Flammability IEC 60707 Under consideration aThe specimen shall be 3 mm thick and of sufficient area to prevent flashover. Page5 EN6045534:2003 Annex ZA (normative) Normative references to international publications with their corresponding Europ
29、ean publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of
30、 any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). NOTE When an international publication has been modified by common modifications,
31、 indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60455-2 1998 Resin based reactive compounds used for electrical insulation Part 2: Methods of test EN 60455-2 1999 IEC 60707 1999 Flammability of solid non-metallic materials when exposed to flame sources - List o
32、f test methods EN 60707 1999 Page6 EN6045534:2003BS EN 60455-3-4:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international l
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