IEC-PAS-62072-2005.pdf
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1、 PUBLICLY AVAILABLE SPECIFICATION IEC PAS 62072 Pre-Standard First edition 2005-01 Natural graphite brush for rotating electrical machinery Basic characteristics Reference number IEC/PAS 62072:2005(E) Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=
2、IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/06/2007 05:50:14 MSTNo reproduction or networking permitted without license from IHS -,-,- Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. For example, IEC 34-1 is
3、now referred to as IEC 60034-1. Consolidated editions The IEC is now publishing consolidated versions of its publications. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the base publication incorporating amendment 1 and the base publication incorporating
4、 amendments 1 and 2. Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC, thus ensuring that the content reflects current technology. Information relating to this publication, including its validity, is available in the IEC Catal
5、ogue of publications (see below) in addition to new editions, amendments and corrigenda. Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication, as well as the list of publications issued, is also available from
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7、tly issued publications, withdrawn and replaced publications, as well as corrigenda. IEC Just Published This summary of recently issued publications (www.iec.ch/online_news/ justpub) is also available by email. Please contact the Customer Service Centre (see below) for further information. Customer
8、Service Centre If you have any questions regarding this publication or need further assistance, please contact the Customer Service Centre: Email: custserviec.ch Tel: +41 22 919 02 11 Fax: +41 22 919 03 00 Copyright International Electrotechnical Commission Provided by IHS under license with IECLice
9、nsee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/06/2007 05:50:14 MSTNo reproduction or networking permitted without license from IHS -,-,- PUBLICLY AVAILABLE SPECIFICATION IEC PAS 62072 Pre-Standard First edition 2005-01 Natural graphite brush for rotating electrical machiner
10、y Basic characteristics PRICE CODE IEC 2005 Copyright - all rights reserved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrote
11、chnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.ch M For price, see current catalogue Commission Electrotechnique Internationale International Electrotechnical Commission Copyrigh
12、t International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/06/2007 05:50:14 MSTNo reproduction or networking permitted without license from IHS -,-,- 2 PAS 62072 IEC:2005(E) CONTENTS FOREWORD.3 1 Scope
13、 4 2 Normative references .4 3 Terms and definitions .4 4 Classification4 5 Characteristics .5 5.1 Physical properties 5 5.1.1 Bulk density.5 5.1.2 Hardness.5 5.1.3 Resistivity5 5.1.4 Bending strength5 5.1.5 Ash5 5.2 Operating characteristics .5 5.2.1 Total voltage drop5 5.2.2 Coefficient of frictio
14、n 5 5.3 Recommended operating conditions.6 5.3.1 Peripheral velocity .6 5.3.2 Current density 6 5.3.3 Brush pressure 6 6 Test methods .8 Annex A (informative) Measurements and performance characteristics .9 Annex B (informative) Manufacture process of the different brushes .10 Annex C (informative)
15、Comparison of physical properties .11 Annex D (informative) Environmental pollution12 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/06/2007 05:50:14 MSTNo reproduction or networkin
16、g permitted without license from IHS -,-,- PAS 62072 IEC:2005(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ NATURAL GRAPHITE BRUSH FOR ROTATING ELECTRICAL MACHINERY BASIC CHARACTERISTICS FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardizatio
17、n comprising all national 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 Internationa
18、l Standards, Technical 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 thi
19、s preparatory work. International, 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
20、 organizations. 2) The 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
21、 form of recommendations 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 misinterp
22、retation by any end user. 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 o
23、r regional publication 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 th
24、is publication. 7) No liability 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 in
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