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1、BRITISH STANDARD BS EN 60851-5:1998 IEC 60851-5:1996 Incorporating Amendment No. 1 Winding wires Test methods Part 5: Electrical properties The European Standard EN 60851-5 + A1:1997, with the incorporation of amendment A2:2004, has the status of a British Standard ICS 29.060.10 ? Licensed Copy: she
2、ffieldun sheffieldun, na, Fri Nov 10 06:57:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60851-5:1998 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 Octob
3、er 1998 BSI 11 August 2004 ISBN 0 580 30427 2 National foreword This British Standard is the English language version of EN 60851-5 + A1:1997 + A2:2004. It was derived by CENELEC from IEC 60851-5:1996 and incorporates amendment 1:1997 and amendment 2:2004. It supersedes BS 6811-2.5:1992 which is wit
4、hdrawn. 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 number of the IEC amendment. For example, text altered by IEC amendment A1 is indicated by !“. The UK participation in its preparation was entrus
5、ted to Technical Committee GEL/55, Winding wires, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement these international or European publications may be found in th
6、e BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility 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
7、for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. 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 i
8、nterests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 18, an inside back cover and a back cover. The BSI copyright notice displayed in this
9、 document indicates when the document was last issued. Amendments issued since publication Amd. No.DateComments 1530111 August 2004 See national foreword Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 06:57:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROP
10、ISCHE NORM EN 60851-5 December 1996 + A1 March 1997 + A2 July 2004 ICS 29.060.10Supersedes HD 490.5 S2:1991 Descriptors: Electric wire, winding, insulated wire, electrical property English version Winding wires Test methods Part 5: Electrical properties (includes amendments A1:1997 and A2:2004) (IEC
11、 60851-5:1996 + A1:1997 + A2:2004) Fils de bobinage Mthodes dessai Partie 5: Proprits lectriques (inclut les amendements A1:1997 et A2:2004) (CEI 60851-5:1996 + A1:1997 + A2:2004) Wickeldrhte Prfverfahren Teil 5: Elektrische Eigenschaften (enthlt nderungen A1:1997 und A2:2004) (IEC 60851-5:1996 + A1
12、:1997 + A2:2004) This European Standard was approved by CENELEC on 1996-10-01; amendment A1 was approved by CENELEC on 1997-03-11 and amendment A2 was approved by CENELEC on 2004-07-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for g
13、iving 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 to any CENELEC member. This European Standard exists in three officia
14、l 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 versions. CENELEC members are the national electrotechnical committ
15、ees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Comm
16、ittee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1996 Copyright reserved to CENELEC members Ref. No. EN 60851-5:1996 + A1:1997 + A2:2004 E Licensed Copy
17、: sheffieldun sheffieldun, na, Fri Nov 10 06:57:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60851-5:1996 BSI 11 August 2004 2 Foreword The text of document 55/474A/FDIS, future edition 3 of IEC 60851-5, prepared by IEC TC 55, Winding wires, was submitted to the IEC-CENELEC parallel vote and was
18、 approved by CENELEC as EN 60851-5 on 1996-10-01. This European Standard supersedes HD 490.5 S2:1991. The following dates were fixed: 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. Foreword to EN 60851
19、-5:1996/A1:1997 The text of document 55/542/FDIS, future amendment 1 to IEC 60851-5:1996, 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 60851-5:1996 on 1997-03-11. The following dates were fixed: Foreword to ame
20、ndment A2 The text of document 55/903A/FDIS, future amendment 2 to IEC 60851-5:1996, prepared by IEC TC 55, Winding wires, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A2 to EN 60851-5:1996 on 2004-07-01. The following dates were fixed: Contents Page Forewo
21、rd2 Introduction3 1Scope3 2Normative reference3 3Test 5: Electrical resistance3 4Test 13: Breakdown voltage4 5Test 14: Continuity of insulation7 6Test 19: Dielectric dissipation factor9 Annex ZA (normative) Normative references to international publications with their corresponding European publicat
22、ions19 Figure 1 Arrangement of cylinder and specimen for the breakdown voltage test11 Figure 2 Device for twisting the specimen for breakdown voltage test12 Figure 3a Specimen for the breakdown voltage test14 Figure 4 Apparatus for testing the low voltage continuity of covering15 Figure 5 High-volta
23、ge d.c. continuity Pulleys for wire size 0,050 mm to 0,250 mm15 Figure 6 Pulley dimensions and spacing for wire size 0,250 mm to 1,600 mm16 Figure 7 Suitable electrode arrangements for testing the dielectric dissipation factor16 Table 1 Rates of test voltage increase4 Table 2 Loads applied to the wi
24、re5 Table 3 Loads applied to the wire pairs and number of twists5 Table 4 Fault currents8 Table 5 Test voltages8 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 1997-07-01 latest date by which the national st
25、andards conflicting with the EN have to be withdrawn(dow) 1997-07-01 latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 1997-12-01 latest date by which the national standards conflicting with the amendmen
26、t have to be withdrawn(dow) 1997-12-01 latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 2005-04-01 latest date by which the national standards conflicting with the amendment have to be withdrawn(dow) 20
27、07-07-01 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 06:57:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60851-5:1996 BSI 11 August 2004 3 Introduction This part of IEC 60851 forms an element of a series of standards which deals with insulated wires used for windings in electrical equi
28、pment. The series has three groups describing: a) methods of test (IEC 60851); b) specifications (IEC 60317); c) packaging (IEC 60264). 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:
29、 Dielectric dissipation factor; #Test 23: Pin hole.$ For definitions, general notes on methods of test and the complete series of methods of test for winding wires see IEC 60851-1. 2 Normative reference The following normative document contains provisions which, through reference in this text, const
30、itute provisions of this part of IEC 60851. At the time of publication, the edition indicated was valid. All normative documents are subject to revision, and parties to agreements based on this part of IEC 60851 are encouraged to investigate the possibility of applying the most recent edition of the
31、 normative document indicated below. Members of the IEC and ISO maintain registers of currently valid International Standards. IEC 60851-1:1996, 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
32、 used shall provide a precision of 0,5 %. For bunched wires a length of up to 10 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
33、 is measured at a temperature t other than 20 C, the resistance R20 at 20 C shall be calculated by means of the formula: In the temperature range from 15 C to 25 C, the temperature coefficient to be used shall be: One test shall be made. The electrical resistance shall be reported. where # tis the a
34、ctual temperature in degrees Celsius during the measurement; is the temperature coefficient in K1.$ # for copper: !20 = 3,96 103 K1; for aluminium: !20= 4,07 103 K1.$ R20 Rt 1 t20()+ -= Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 06:57:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 6085
35、1-5:1996 4 BSI 11 August 2004 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 shall be applied at zero and increased at a uniform rate according to Table 1. Table 1 Rates of test voltage increase 4.2 Equipment
36、 The following equipment shall be used: test transformer with a rated power 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 5 % (1,34 to 1,48) and with a capacity to supply a current of 5 mA with a maxi
37、mum voltage drop of 2 %; fault detection circuit, which operates at a 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 Fi
38、gure 1) and electrically connected to one terminal of the test voltage 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 stainle
39、ss steel or nickel-plated iron. The diameter of the shot shall not exceed 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.$ 4.3 Enamelled round wire with a nominal conductor diameter up to and including 0,10
40、0 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 specified in Table 2 shall be applied to the lower end of the wire to keep the specimen in close contact with the cylinder.
41、 The test voltage shall be applied 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. Breakdown voltage V Rate of increase OverUp to and includingV/s 50020 5
42、002 500100 2 500500 2 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 06:57:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60851-5:1996 BSI 11 August 2004 5 Table 2 Loads applied to the wire 4.4 Enamelled round wire with a nominal conductor diameter over 0,100 mm up to and including 2,500 m
43、m 4.4.1 Test at room temperature #A straight piece of wire, approximately 400 mm in length, with the insulation removed at both ends, shall be twisted back on itself for a distance of (125 5) mm on the twisting device as shown in Figure 2. The ends of the wire shall be joined, and the load applied w
44、ith the number of twists, as given in Table 3. The loop at the end of the twisted section shall be cut at two places to provide a maximum spacing between the cut ends. Any bending to ensure adequate separation between the two wire ends shall avoid sharp bends or damage to the coating. The test volta
45、ge shall be applied according to 4.1 between the conductors of the wires. Five specimens shall be tested. The five single values shall be reported.$ Table 3 #Loads applied to the wire and number of twists$ Nominal conductor diameterLoad mm OverUp to and includingN 0,0180,013 0,0180,0200,015 0,0200,0
46、220,020 0,0220,0250,025 0,0250,0280,030 0,0280,0320,040 0,0320,0360,050 0,0360,0400,060 0,0400,0450,080 0,0450,0500,100 0,0500,0560,120 0,0560,0630,150 0,0630,0710,200 0,0710,0800,250 0,0800,0900,300 0,0900,1000,400 Nominal conductor diameterLoadNumber of twists mm OverUp to and includingN 0,1000,25
47、00,8533 0,2500,3551,7023 0,3550,5003,4016 0,5000,7107,0012 0,7101,06013,508 1,0601,40027,006 1,4002,00054,004 2,0002,500108,003 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 06:57:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60851-5:1996 6 BSI 11 August 2004 4.4.2 Test at elevated tempe
48、rature A specimen prepared according to 4.4.1 shall be placed in the oven preheated to the specified test temperature 3 C. The test voltage shall be applied according to 4.1 between the conductors of the wires in not less than 15 min after placing the specimen in the oven. The test shall be completed within 30 min. Five specimens shall be tested. The five single values shall be reported. !4.5 Round wire with a nominal conductor diameter over 2,500 mm 4.5.1 Test at room temperature #A straight piece of wire of suff