EN 60404-11-2013 en Magnetic materials - Part 11 Method of test for the determination of surface insulation resistance of magnetic sheet and strip.pdf
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1、BSI Standards PublicationMagnetic materialsPart 11: Method of test for the determination of surface insulation resistance of magnetic sheet and strip BS EN 60404-11:2013BS EN 60404-11:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 60404-11:2013. It is iden
2、tical to IEC 60404-11:1991, incorporating amendments 1:1998 and 2:2012. It supersedes BS EN 10282:2001 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to ISO text carry the number of the ISO amendment. For e
3、xample, text altered by ISO amendment 1 is indicated by .The UK participation in its preparation was entrusted to Technical Committee ISE/108, Magnetic Alloys and Steels.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purpor
4、t to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013 Published by BSI Standards Limited 2013ISBN 978 0 580 79761 3ICS 17.220.01; 29.030Compliance with a British Standard cannot confer immunity from legal ob
5、ligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2013.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD EN 60404-11 NORME EUROPENNE EUROPISCHE NORM February 2013 CENELEC European Committee fo
6、r Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Re
7、f. No. EN 60404-11:2013 E ICS 17.220.01; 29.030 Supersedes EN 10282:2001 English version Magnetic materials - Part 11: Method of test for the determination of surface insulation resistance of magnetic sheet and strip (IEC 60404-11:1991 + A1:1998 + A2:2012) Matriaux magntiques - Partie 11: Mthode des
8、sai pour la dtermination de la rsistance disolement superficiel des tles et feuillards magntiques (CEI 60404-11:1991 + A1:1998 + A2:2012) Magnetische Werkstoffe -Teil 11: Messverfahren fr die Bestimmung des Oberflchenisolationswiderstandes von Elektroblech und band (IEC 60404-11:1991 + A1:1998 + A2:
9、2012) This European Standard was approved by CENELEC on 2012-12-31. CENELEC members are bound to 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 bibliograp
10、hical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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 responsi
11、bility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland,
12、 Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 60404-11:2013 - 2 - Foreword
13、This document (EN 60404-11:2013) consists of the text of IEC 60404-11:1991 + A1:1998 + A2:2012 prepared by IEC TC 68 “Magnetic alloys and steels“. The following dates are fixed: x latest date by which the document has to be implemented at national level by publication of an identical national standa
14、rd or by endorsement (dop) 2013-12-31 x latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2015-12-31 This document supersedes EN 10282:2001. Attention is drawn to the possibility that some of the elements of this document may be the subject of paten
15、t rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 60404-11:1991 + A1:1998 + A2:2012 was approved by CENELEC as a European Standard without any modification. BS EN 60404-11:2013 2 CON
16、TENTS 1 Scope and field of application 5 2 Principle of measurement . 5 3 Test specimen 6 4 Apparatus . 6 4.1 Contact assembly 6 4.2 Power supply 7 4.3 Current measurement . 7 4.4 Determination of applied force . . 8 5 Calibration . . 9 6 Measuring procedure . . 9 7 Evaluation of surface insulation
17、resistance . . 9 8 Test report . . 10 Figure 1 Arrangement of apparatus for the measurement of surface insulation resistance . 5 Figure 2 Arrangement of stabilizing circuit: mode A . . 8 Figure 3 Arrangement of stabilizing circuit: mode B . . 8 BS EN 60404-11:201360404-11 IEC:1991+A1:1998 +A2:2012 5
18、 MAGNETIC MATERIALS Part 11: Method of test for thedetermination of surface insulationresistance of magnetic sheet and strip 1 Scope and field of application This International Standard is intended to define a measurement method for the determinationof the characteristics of surface insulation resis
19、tance of magnetic sheet and strip. This method is applicable to magnetic sheet and strip insulated on one or both surfaces and issuitable for manufacturing control in the application of insulation coatings. 2 Principle of measurement The principle of the measurement is based on, and includes, the me
20、thod originally described byFranklin*which characterizes only one coated surface at a time. The arrangement of the apparatus is shown in figure 1. Ten metallic contacts of fixed area areapplied to one coated surface of the sheet, under specified conditions of voltage and pressure. The effectiveness
21、of the surface insulation is assessed by the measurement of the currentsthrough the 10 contacts. Power supplyMicro-processorDisplayInsulationcoatingContact buttons(a total of 10)Test specimenTwist drillfor contactIEC 1 595/98Figure 1 Arrangement of apparatus for the measurement ofsurface insulation
22、resistance *Franklin, R.F., “Measurement and control of interlaminar resistance of laminated magnetic cores“, ASTMBulletin, no. 144, January 1947, p. 57. BS EN 60404-11:201360404-11 IEC:1991+A1:1998 +A2:2012Because the current path is between the contacts and the metallic substrate, this is not a tr
23、ue measurement of interlaminar resistance. However, this test provides a useful indication ofsurface insulation quality. 3 Test specimen 6 Each contact button is individually fed from a d.c. power supply in one of the two ways whichconstitute the two modes of measurement used in this standard, namel
24、y: a) Mode A The voltage between the supply side of the 5 : 1 % resistors (see figure 2) and the drill contacts is stabilized at 500 mV 0,5 % over a current range of 0 to 1 A. TheBS EN 60404-11:2013b) Mode B The voltage between each contact button and the drill contacts is stabilized at250 mV 0,5 %
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