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1、a Date: 19 December 2007 Origin: International Latest date for receipt of comments: 31 March 2008 Project no.: 2007/03364 Responsible committee: GEL/15/3/10 Combined flexible materials Interested committees: Title: Draft BS EN 60626-2 ED.3 Combined flexible materials for electrical insulation - Part
2、 2: Methods of test Supersession information: If this document is published as a standard, the UK implementation of it will supersede BSEN60626-2 : 1996 and partially supersede. NONE If you are aware of a current national standard which may be affected, please notify the secretary (contact details b
3、elow). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 March 2008. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledgement will normally be s
4、ent. See overleaf for information on commenting. No copying is allowed, in any form, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 1988 or for circulation within a nominating organization for briefing purposes. Electronic circulation is lim
5、ited to dissemination by e-mail within such an organization by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email ordersbsi-. British, International and foreign standards are also available from BSI Customer Services. Inform
6、ation on the co-operating organizations represented on the committees referenced above may be obtained from the responsible committee secretary. Cross-references The British Standards which implement International or European publications referred to in this draft may be found via the British Standa
7、rds Online Service on the BSI web site http:/www.bsi-. Direct tel: 020 8996 7205 Responsible Committee Secretary: Mr A Ashrafi (BSI) E-mail: asghar.ashrafibsi- Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Vers
8、ion 7.0 DPC: 07/30175250 DC Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:28 GMT+00:00 2008, Uncontrolled Copy, (c) BSI b Introduction This draft standard is based on international discussions in which the UK has taken an active part. Your comments on th
9、is draft are welcome and will assist in the preparation of the consequent standard. If no comments are received to the contrary, then the UK will approve this draft. There is a high probability that this text could be adopted by CENELEC as a reference document for harmonization or as a European Stan
10、dard. Recipients of this draft are requested to comment on the text bearing in mind this possibility. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons) or positive vote on this draft. Submission The guidance given below is intended to ensure that all comment
11、s receive efficient and appropriate attention by the responsible BSI committee. Annotated drafts are not acceptable and will be rejected. All comments must be submitted, preferably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should be comp
12、atible with Version 6.0 or Version 97 of Microsoft Word for Windows, if possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electronically should still adhere to these format requirements. All comments submitted should be presented as given in the example bel
13、ow. Further information on submitting comments and how to obtain a blank electronic version of a comment form are available from the BSI web site at: http:/www.bsi- Template for comments and secretariat observations Date: xx/xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclaus
14、e No./ Annex (e.g. 3.1) Paragraph/ Figure/Table/ Note (e.g. Table 1) Type of com- ment Comment (justification for change) by the MB Proposed change by the MB Secretariat observations on each comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that t
15、he mains connector to which no connection . 6.4 Paragraph 2 te The use of the UV photometer as an alternative cannot be supported as serious problems have been encountered in its use in the UK. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a tradem
16、ark of Microsoft Corporation. Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:28 GMT+00:00 2008, Uncontrolled Copy, (c) BSI 15/398/CD COMMITTEE DRAFT (CD) IEC/TC or SC: TC 15 Project number IEC 60626-2 Ed. 3.0 Title of TC/SC: Solid Electrical Insulating Ma
17、terials Date of circulation 2007-12-14 Closing date for comments 2008-03-14 Also of interest to the following committees TC 112 Supersedes document 15/397/MCR Functions concerned: Safety EMC Environment Quality assurance Secretary: John A. Gauthier - USA THIS DOCUMENT IS STILL UNDER STUDY AND SUBJEC
18、T TO CHANGE. IT SHOULD NOT BE USED FOR REFERENCE PURPOSES. RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. Title: IEC 60626-2 Ed. 3.0: Combined flexible materials for e
19、lectrical insulation Part 2: Methods of test (Titre) : Introductory note FORM CD (IEC) 2002-08-08 Copyright 2007 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this electronic file, to make a copy and to print out the content for the sole purpose of
20、preparing National Committee positions. You may not copy or “mirror“ the file or printed version of the document, or any part of it, for any other purpose without permission in writing from IEC. Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:28 GMT+00:00
21、2008, Uncontrolled Copy, (c) BSI 15/398/CD 2 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ COMBINED FLEXIBLE MATERIALS FOR ELECTRICAL INSULATION Part 2: Methods of test FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all nation
22、al electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical
23、Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. Int
24、ernational, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The
25、formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendation
26、s for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end use
27、r. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication
28、shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No l
29、iability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (i
30、ncluding legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application
31、 of this publication. 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 60626-2 has been prepared Technicalcommitt
32、ee 15: Solid Electrical Insulating materials. This third edition cancels and replaces the second edition published in 1995 and constitutes a major technical revision: some tests actually not used and not listed on the requirementa of part 3 were deleted The text of this standard is based on the foll
33、owing documents: FDIS Report on voting XX/XX/FDIS XX/XX/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:28 GMT+00:00 200
34、8, Uncontrolled Copy, (c) BSI 15/398/CD 3 INTRODUCTION This International standard is one of a series which deals with combined flexible materials consisting of two or more different insulating materials laminated together. The components of flexible combined materials are polymer film and fibrous s
35、heet material. Typical fibrous sheet materials include, but are not limited to: dry-laid non-woven, wet-laid non-woven (e.g., paper), and woven fabric. The non-woven may or may not be treated by mechanical, chemical, hydraulic or thermal processing to alter characteristics. The fibrous material may
36、or may not be impregnated with a resin. This standard does not include materials based on mica paper, neither does it deal with combined materials in which one of the components is deliberately left in the B-stage. The series has three parts describing: Part 1: Definitions and general requirements (
37、IEC 60626-1) Part 2: Methods of test (IEC 60626-2) Part 3: Specifications for individual materials (IEC 60626-3) 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. Licensed Copy: London South Ban
38、k University, London South Bank University, Fri Feb 15 06:48:28 GMT+00:00 2008, Uncontrolled Copy, (c) BSI 15/398/CD 4 COMBINED FLEXIBLE MATERIALS FOR ELECTRICAL INSULATION Part 2: Methods of test 1 General 1.1 Scope This International Standard provides the test methods for combined flexible materia
39、ls for electrical insulation. Some properties and relevant test methods, according the perfomance requirements of IEC 60626-3 were confirmed, Other test methods are described as a supplement of guidance for further specification that could be agreed between customer and supplier to meet specific nee
40、ds of the end use. The edge tearing and stifness test were deleted as are not used by the market. Materials which conform to this specification meet established levels of performance. However, the selection of material by a user for a specific application should be based on the actual requirements n
41、ecessary for adequate performance in that application and not based on this specification alone. 1.2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60626. At the time of publication, the editi
42、ons indicated were valid. All normative documents are subject to revision, and parties to agreements based on this part of IEC 60626 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain register
43、s of currently valid International Standards. In the event of dispute, the referenced editions shall be used. IEC 60216-1 Electrical insulating materials - Properties of thermal endurance - Part 1: Ageing procedures and evaluation of test results IEC 60216-4-1: 2006, Guide for the determination of t
44、hermal endurance properties of electrical insulating materials - Part 4: Ageing ovens - Section 1: Single chamber IEC 60243-1:1998, Methods of test for electric strength of solid insulating materials - Part 1: Tests at power frequencies IEC 60626-1:2008, Specification for combined flexible materials
45、 for electrical insulation Part 1 Definitions and general requirements IEC 60626-3:2008, Specification for combined flexible materials for electrical insulation - Part 3: Specifications for individual materials ISO 536: XX?, Paper and board - Determination of grammage 1.3 General requirements on tes
46、ts Unless otherwise specified, the test specimens, after being cut, shall be conditioned for 24 h at (23 2) C and (50 5) % relative humidity. If the test is not conducted in this standard atmosphere, the test shall be made within 5 min after removal from the standard atmosphere. Licensed Copy: Londo
47、n South Bank University, London South Bank University, Fri Feb 15 06:48:28 GMT+00:00 2008, Uncontrolled Copy, (c) BSI 15/398/CD 5 2 Thickness 2.1 Test apparatus 2.1.1 An external screw type micrometer having measuring faces of 6 mm to 8 mm diameter. The measuring faces shall be flat to within 0,001
48、mm and parallel to within 0,003 mm. The pitch of the screw shall be 0,5 mm and the graduations shall be 50 divisions of 0,01 mm, enabling readings to be estimated to 0,002 mm. The pressure exerted on the specimens shall be 100 kPa as described in 2.1.2. 2.1.2 A dead-weight dial type micrometer havin
49、g two ground and lapped concentric circular surfaces flat to within 0,001 mm and parallel to within 0,003 mm. The upper surface shall be 6 mm to 8 mm in diameter. The lower surface shall be larger than the upper one. The upper surface shall move on the axis perpendicular to the surfaces. The dial shall be graduated to read directly to 0,002 mm. The frame of the micrometer shall be of such rigidity that a force of 15 N applied to dial housing, o
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