EN 60851-5-2008 en Winding wires - Test methods - Part 5 Electrical properties (Incorporates Amendment A1 2011)《绕组线 试验方法 第5部分 电性能》.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationWinding wires Test methods Part 5: Electrical propertiesBS EN 60851-5:2008+A1:2011Incorporating corrigendum January 2012National forewordThis British Standard is the UK implement

2、ation of EN 60851-5:2008+A1:2011. It is identical to IEC 60851-5:2008, incorporating amendment 1:2011. It supersedes BS EN 60851-5:2008,which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags.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 IEC text carry the n

3、umber of the IEC amendment. For example, text altered by IEC amendment 1 is indicated by .The UK participation in its preparation was entrusted to Technical Committee GEL/55, Winding wires.A list of organizations represented on this committee can be obtained on request to its secretary.This publicat

4、ion does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 78135 3 ICS 29.060.10 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the

5、authority of the Standards Policy and Strategy Committee on 31 January 2009.Amendments/corrigenda issued since publication Date Text affectedBRITISH STANDARDBS EN 60851-5:2008+A1:2011CENELEC endorsement A1:2011 !“30 September 2011 Implementation of IEC amendment 1:2011 and31 January 2012 Missing tex

6、t from National Foreword replacedEUROPEAN STANDARD EN 60851-5:2008+A1 NORME EUROPENNE EUROPISCHE NORM July 2011CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de

7、Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60851-5:2008 E ICS 29.060.10 Supersedes EN 60851-5:1996 + A1:1997 + A2:2004English version Winding wires - Test methods - Part 5: Electrical prope

8、rties (IEC 60851-5:2008) Fils de bobinage - Mthodes dessai - Partie 5: Proprits lectriques (CEI 60851-5:2008) Wickeldrhte - Prfverfahren - Teil 5: Elektrische Eigenschaften (IEC 60851-5:2008) This European Standard was approved by CENELEC on 2008-08-01. CENELEC members are bound to comply with the C

9、EN/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 bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or t

10、o 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 responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official

11、 versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Ro

12、mania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 55/1069/FDIS, future edition 4 of IEC 60851-5, prepared by IEC TC 55, Winding wires, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60851-5 on 2008-08-01. Thi

13、s European Standard supersedes EN 60851-5:1996 + A1:1997 + A2:2004. Significant revisions to EN 60851-5:1996 include the following points: in Subclause 5.3, the addition of the use of carbon brush electrodes for the counting discontinuities during the high voltage continuity test, as an alternative

14、to the V-groove pulley electrode; clarifications in the breakdown voltage test for round wires larger than 2,500 mm and for fibrous covered wires. 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 b

15、y endorsement (dop) 2009-05-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-08-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60851-5:2008 was approved by CENELEC as a European Standard wit

16、hout any modification. _ Foreword to amendment A1The text of document 55/1223/FDIS, future amendment 1 to IEC 60851-5:2008, prepared by IEC TC 55, Winding wires, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 60851-5:2008 on 2011-07-26. Attention is

17、drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the amendment has to be implemented at national l

18、evel by publication of an identical national standard or by endorsement (dop) 2012-04-26 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2014-07-26 _ Endorsement notice The text of amendment 1:2011 to the International Standard IEC 60851-5:2008 w

19、as approved by CENELEC as an amendment to the European Standard without any modification. _ BS EN 60851-5:2008+A1:2011EN 60851-5:2008+A1:2011 (E) 2 Annex ZA(normative) Normative references to international publications with their corresponding European publications The following referenced documents

20、 are indispensable for the 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. NOTE When an international publication has been modified by common modifications, i

21、ndicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60851-1 -1)Winding wires - Test methods - Part 1: General EN 60851-1 19962)1)Undated reference. 2)Valid edition at date of issue. BS EN 60851-5:2008+A1:2011EN 60851-5:2008+A1:2011 (E) 3 CONTENTS INTRODUCTION.6 1 Sco

22、pe.7 2 Normative references .7 3 Test 5: Electrical resistance7 4 Test 13: Breakdown voltage .8 4.1 Principle8 4.2 Equipment.8 4.3 Enamelled round wire 94.4 Enamelled round wire with a nominal conductor diameter over 0,100 mm up to and including 2,500 mm, grade 1 to grade 3.11 4.4.1 Test at room tem

23、perature 11 4.4.2 Test at elevated temperature .12 4.5 Round wire with a nominal conductor diameter over 2,500 mm13 4.5.1 Test at room temperature 13 4.5.2 Test at elevated temperature .15 4.6 Fibre wound round wire .15 4.6.1 Test at room temperature 15 4.6.2 Test at elevated temperature .17 4.7 Rec

24、tangular wire .17 4.7.1 Test at room temperature 17 4.7.2 Test at elevated temperature .17 5 Test 14: Continuity of insulation (applicable to enamelled round and tape wrapped round wire) .18 5.1 General .18 5.2 Low-voltage continuity (nominal conductor diameter up to and including 0,050 mm, grade 1

25、to grade 3).18 5.3 Off-line high-voltage continuity (nominal conductor diameter over 0,050 mm up to and including 1,600 mm) .18 5.3.1 Principle 18 5.3.2 Equipment .19 5.3.3 Procedure22 5.3.4 Result23 6 Test 19: Dielectric dissipation factor (applicable to enamelled wire and bunched wire).26 6.1 Prin

26、ciple26 6.2 Equipment.26 6.3 Specimen 27 6.3.1 Specimen for a metal bath electrode27 6.3.2 Specimen for a conductive suspension electrode.27 BS EN 60851-5:2008+A1:2011EN 60851-5:2008+A1:2011 (E) 4 5.4 Inline high-voltage continuity (wire in accordance with grade of FIW 3 to FIW 10with nominal conduc

27、tor diameter over 0,035 mm up to and including 1,600 mm) 24 5.4.1 Principle 24 5.4.2 Equipment .24 5.4.3 Procedure24 5.4.4 Result25 Figure 2 Device for twisting the specimen for breakdown voltage test 12 Figure 3 U-bend specimen for the breakdown voltage test (specimen placed in shot bath).14 Figure

28、 4 Coil-wound specimen for the breakdown voltage test .16 Figure 5 Apparatus for testing the low-voltage continuity of covering .18 Figure 6 High-voltage d.c. continuity Pulleys for wire size 0,050 mm to 0,250 mm 20 Figure 7 Pulley dimensions and spacing for wire size 0,250 mm to 1,600 mm 20 Figure

29、8a Graphite fibre single brush electrode assembly 21 Figure 8b Graphite fibre dual brush electrode assembly.22 Figure 8 Graphite fibre single or dual brush electrode asssembly.22 Figure 9 Suitable electrode arrangement for testing the dielectric dissipation factor.27 Figure A.1 Example of linear met

30、hod for sole coating.31 Figure A.2 Example of logarithmic method for sole coating 31 Table 1 Rates of test voltage increase .8 Table 2.1 Loads applied to the wire .9 Table 3 Loads applied to the wire and number of twists .12 Table 4 Off-line HVC fault currents.19 Table 6 In-line HVC fault currents .

31、24 BS EN 60851-5:2008+A1:2011EN 60851-5:2008+A1:2011 (E) 5 Figure 1 Arrangement of cylinder and specimen for the breakdown voltage test.10 6.4 Procedure .28 6.5 Result .28 7 Test 23: Pin hole test28 Annex A (informative) Dissipation factor methods 29 Table 2.2 Loads and diameters of test cylinders a

32、pplied to wire 11Table 5.1 Off-line HVC test voltages for grades 1 3 . 23 Table 5.2 Off-line HVC test voltages for grade of FIW 3 FIW 9 23Table 7 In-line HVC test voltages 25INTRODUCTION This part of IEC 60851 forms an element of a series of standards which deals with insulated wires used for windin

33、gs in electrical equipment. The series has three groups describing a) winding wires Test methods (IEC 60851); b) specifications for particular types of winding wires (IEC 60317); c) packaging of winding wires (IEC 60264). BS EN 60851-5:2008+A1:2011EN 60851-5:2008+A1:2011 (E) 6 WINDING WIRES TEST MET

34、HODS Part 5: Electrical properties 1 Scope This part of IEC 60851 specifies the following tests: Test 5: Electrical resistance; Test 13: Breakdown voltage; Test 14: Continuity of insulation; Test 19: Dielectric dissipation factor; Test 23: Pin hole. For definitions, general notes on methods of test

35、and the complete series of methods of test for winding wires, see IEC 60851-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the ref

36、erenced document (including any amendments) applies. IEC 60851-1, Winding wires Test methods Part 1: General 3 Test 5: Electrical resistance Electrical resistance is the d.c. resistance at 20 C of 1 m of wire. The method used shall provide a precision of 0,5 %. For bunched wires a length of up to 10

37、 m shall be used and the ends shall be soldered before the measurement. When measuring the resistance to check for an excessive number of broken wires, a length of 10 m of bunched wire shall be used. If the resistance Rt is measured at a temperature t other than 20 C, the resistance R20 at 20 C shal

38、l be calculated by means of the following formula: R20 = )( 201t+ tRwhere t is the actual temperature in degrees Celsius during the measurement; is the temperature coefficient in K1. BS EN 60851-5:2008+A1:2011EN 60851-5:2008+A1:2011 (E) 7 In the temperature range from 15 C to 25 C, the temperature c

39、oefficient to be used shall be: for copper: 20 = 3,96 103K1; for aluminium: 20= 4,07 103K1. One test shall be made. The electrical resistance shall be reported. 4 Test 13: Breakdown voltage 4.1 Principle The test voltage shall be an a.c. voltage of 50 Hz or 60 Hz nominal frequency. The test voltage

40、shall be applied at zero and increased at a uniform rate according to Table 1. Table 1 Rates of test voltage increase Breakdown voltage V Over Up to and including Rate of increase V/s 500 20 500 2 500 100 2 500 500 4.2 Equipment The following equipment shall be used: test transformer with a rated po

41、wer of at least 500 VA providing an a.c. voltage of an undistorted sine waveform under test conditions, with a peak factor being within the limits of 2 5 % (1,34 to 1,48) and with a capacity to supply a current of 5 mA with a maximum voltage drop of 2 %; fault detection circuit, which operates at a

42、current of 5 mA or more; arrangement to provide a uniform rise of the test voltage at the specified rate; oven with forced air circulation; polished metal cylinder, 25 mm 1 mm in diameter, mounted with its axis horizontal (see Figure 1) and electrically connected to one terminal of the test voltage

43、supply; twisting device according to Figure 2, that allows to twist two pieces of wire for a length of 125 mm; strips of metal foil, 6 mm in width and pressure sensitive tape, 12 mm in width; container with metal shot of stainless steel or nickel-plated iron. The diameter of the shot shall not excee

44、d 2 mm. The shot shall be cleaned periodically by suitable means; metal mandrel, 50 mm 2 mm in diameter; metal mandrel, 25 mm 1 mm in diameter. metal mandrel, 80 mm 3 mm in diameter. ! “BS EN 60851-5:2008+A1:2011EN 60851-5:2008+A1:2011 (E) 8 4.3 Enamelled round wireThe test voltage shall be applied

45、according to 4.1 between the conductor of the wire and the cylinder. The test shall be carried out at room temperature. Five specimens shall be tested. The five single values shall be reported. Table 2.1 Loads applied to the wire Nominal conductor diameter mm Over Up to and including Load N 0,018 0,

46、020 0,022 0,025 0,028 0,032 0,036 0,040 0,045 0,050 0,056 0,063 0,071 0,080 0,090 0,018 0,020 0,022 0,025 0,028 0,032 0,036 0,040 0,045 0,050 0,056 0,063 0,071 0,080 0,090 0,100 0,013 0,015 0,020 0,025 0,030 0,040 0,050 0,060 0,080 0,100 0,120 0,150 0,200 0,250 0,300 0,400 !“4.3.1 Grade 1 to grade 3

47、 with a nominal diameter up to and including 0,100 mmThe test is carried out on a cylinder with a diameter of 25 mm 1 mm. A straight piece of wire with the insulation removed at one end shall be connected to the upper terminal as shown in Figure 1 and wound once around the cylinder. A load as specif

48、ied in Table 2.1 shall be applied to the lower end of the wire to keep the specimen in close contact with the cylinder. ! “BS EN 60851-5:2008+A1:2011EN 60851-5:2008+A1:2011 (E) 9 Test voltage Test voltage Load 12 34IEC 1271/08 1 specimen 2 insulating material 3 upper terminal 4 cylinder Figure 1 Arr

49、angement of cylinder and specimen for the breakdown voltage test 4.3.2 Grade of FIW 3 to FIW 9 with a nominal conductor diameter up to and including 1,600 mm The test is carried out on a cylinder with a diameter as set out in Table 2.2. A straight piece of wire with the insulation removed at one end shall be connected to the upper terminal as s