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1、- - - Winding wires Test methods Part 2: Determination of dimensions BS EN 60851-2:2009 - - National foreword This British Standard is the UK implementation of EN 60851-2:2009. It is identical to IEC 60851-2:2009. It supersedes BS EN 60851-2:1998 which is withdrawn. The UK participation in its prepa
2、ration 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 publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct applica
3、tion. BSI 2010 ISBN 978 0 580 64069 8 ICS 29.060.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2010 Amendments issued since publication Amd. No.
4、 Date Text affected BRITISH STANDARDBS EN 60851-2:2009 - - EUROPEAN STANDARD EN 60851-2 NORME EUROPENNE EUROPISCHE NORM December 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Centr
5、al Secretariat: Avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60851-2:2009 E ICS 29.060.10 Supersedes EN 60851-2:1996 + A1:1997 + A2:2003 English version Winding wires - Test methods - Pa
6、rt 2: Determination of dimensions (IEC 60851-2:2009) Fils de bobinage - Mthodes dessai - Partie 2: Dtermination des dimensions (CEI 60851-2:2009) Wickeldrhte - Prfverfahren - Teil 2: Ermittlung der Mae (IEC 60851-2:2009) This European Standard was approved by CENELEC on 2009-11-01. CENELEC members a
7、re 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 bibliographical references concerning such national standards may be obtained on application to
8、 the Central Secretariat 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 responsibility of a CENELEC member into its own language and notified to the Central Secretariat has th
9、e same status as the official 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,
10、 Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 60851-2:2009 - - EN 60851-2:2009 - 2 - Foreword The text of document 55/1144/FDIS, future edition 3 of IEC 60851-2, prepared by IEC TC 55, Winding wires, was submitted to the IEC-CENELEC
11、parallel vote and was approved by CENELEC as EN 60851-2 on 2009-11-01. This European Standard supersedes EN 60851-2:1996 + A1:1997 + A2:2003. Technical revisions of note include recognition of the use of optical micrometers in determining the dimensions of round and rectangular enamelled wire. The f
12、ollowing dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2010-08-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-11-01 Annex ZA has be
13、en added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60851-2:2009 was approved by CENELEC as a European Standard without any modification. _ BS EN 60851-2:2009 - - - 3 - EN 60851-2:2009 Annex ZA (normative) Normative references to international publications with their
14、 corresponding European publications 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 referenced document (including any amendments) applies. NOTE When an
15、 international publication has been modified by common modifications, indicated 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) IEC 60851-5 2008 Winding wires - Test methods - Part 5: Electrical
16、properties EN 60851-5 2008 1) Undated reference. 2) Valid edition at date of issue. BS EN 60851-2:2009 - - 2 60851-2 IEC:2009 CONTENTS INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Test 4: Dimensions.6 3.1 Equipment.6 3.1.1 Round and rectangular wire.6 3.1.2 Bunched wire.7 3.2 Procedure .7 3.
17、2.1 Conductor dimension.7 3.2.2 Out-of-roundness of the conductor 7 3.2.3 Rounding of corners of rectangular wire 8 3.2.4 Increase in dimension due to the insulation .8 3.2.5 Overall dimension8 3.2.6 Increase in diameter due to the bonding layer of enamelled round wire .9 Figure 1 Conical mandrel.10
18、 Table 1 Types of winding wires 6 Table 1a Enamelled round wire6 Table 1b All the types of winding wires except enamelled round wire.7 Table 2 Determination of the conductor diameter .9 BS EN 60851-2:2009 - - 60851-2 IEC:2009 5 INTRODUCTION This part of IEC 60851 forms an element of a series of stan
19、dards which deals with insulated wires used for windings in electrical equipment. The series has three groups describing a) methods of test (IEC 60851); b) specifications (IEC 60317); c) packaging (IEC 60264). BS EN 60851-2:2009 - - 6 60851-2 IEC:2009 WINDING WIRES TEST METHODS Part 2: Determination
20、 of dimensions 1 Scope This part of IEC 60851 specifies the following method of test: Test 4: Dimensions. 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 references The following referenced documents are ind
21、ispensable 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. IEC 60851-1, Winding wires Test methods Part 1: General IEC 60851-5:2008, Winding wires Tes
22、t methods Part 5: Electrical properties 3 Test 4: Dimensions 3.1 Equipment 3.1.1 Round and rectangular wire The equipment used shall have a resolution of 2 km or less for wires over 0,200 mm and for wires up to and including 0,200 mm, a resolution of 1 km or less. Both mechanical contact and optical
23、 non-contact micrometers may be used. If mechanical contact micrometers are used, the ratio of measuring force and anvil diameter shall be in accordance with the range as given in Table 1a and Table 1b. The diameter range of the spindle and anvil is also given in Table 1a and Table 1b. If optical mi
24、crometers are used, the average of the readings shall be recorded as the diameter of the conductor. If a specific measuring equipment must be used, it shall be agreed upon between the customer and the supplier. Table 1 Types of winding wires Table 1a Enamelled round wire Type of winding wire Nominal
25、 conductor diameter mm Anvil diameter mm Measuring force(N)/anvil diameter(mm) = P(N/mm) Enamelled round wire 0,100 0,100 d 0,45 0,45 2 to 8 5 to 8 5 to 8 0,01 P 0,16 0,16 P 0,32 0,32 P 0,80 BS EN 60851-2:2009 - - 60851-2 IEC:2009 7 Table 1b All the types of winding wires except enamelled round wire
26、 Type of winding wire Nominal conductor diameter mm Anvil diameter mm Measuring force N Tape wrapped round wire 0,100 5 to 8 1 to 8 Enamelled rectangular and tape wrapped rectangular wire - 5 to 8 4 to 10 Fibrous covered wire - 5 to 8 4 to 10 Paper covered wire - 5 to 8 8 to 14 3.1.2 Bunched wire Th
27、e measurement shall be made with a polished conical mandrel having dimensions as shown in Figure 1. 3.2 Procedure 3.2.1 Conductor dimension 3.2.1.1 Round wire See Table 2. 3.2.1.1.1 Nominal conductor diameter over 0,063 mm and up to and including 0,200 mm From a straight piece of wire the insulation
28、 shall be removed at three places, 1 m apart, by any method that does not damage the conductor. One measurement shall be made at these three places. The three single values shall be reported. The mean value represents the conductor diameter. 3.2.1.1.2 Nominal conductor diameter over 0,200 mm From a
29、straight piece of wire, the insulation shall be removed by any method that does not damage the conductor. Three measurements of the bare conductor diameter shall be made at points evenly distributed around the circumference of the conductor. The three single values shall be reported. The mean value
30、represents the conductor diameter. 3.2.1.2 Rectangular wire The insulation shall be removed at the three places used for measurements in 3.2.5.2 by any method that does not damage the conductor. At each place one measurement of the two dimensions of the conductor shall be made. The three single valu
31、es shall be reported for each dimension of the conductor. The mean represents the conductor width or the conductor thickness respectively. 3.2.2 Out-of-roundness of the conductor Out-of-roundness is the maximum value of the difference between the three readings if measured in accordance with 3.2.1.1
32、.1, or the three readings of the conductor diameter at the cross-section if measured in accordance with 3.2.1.1.2.The out-of-roundness shall be reported. BS EN 60851-2:2009 - - 8 60851-2 IEC:2009 3.2.3 Rounding of corners of rectangular wire For the purpose of this test, a cross-section of the wire
33、shall be prepared and then examined under a sufficient magnification. Three straight pieces of wire shall be cast in a suitable resinous compound that will not affect the insulation. After curing, the colour of the resinous compound shall contrast with the colour of the insulation. The specimen cons
34、isting of the three pieces of wire embedded in the cured resinous compound shall be cut at right angles to the length of the wire pieces, and the cross-section shall be carefully ground and polished by suitable means. The polished surface shall be examined under a magnification which allows a correc
35、t judgement of the rounding of corners. It shall be reported how the arc merges into the flat surface of the conductor. Any sharp, rough and projecting edges shall also be reported. 3.2.4 Increase in dimension due to the insulation 3.2.4.1 General The increase in dimension due to the insulation is t
36、he difference between the overall dimension and the conductor dimension. 3.2.4.2 Round wire The measurement shall be made in accordance with 3.2.1.1 and 3.2.5.1. The difference between the overall diameter and the conductor diameter shall be reported as the increase in diameter. 3.2.4.3 Rectangular
37、wire The measurement shall be made in accordance with 3.2.1.2 and 3.2.5.2. The difference between the overall width and the conductor width shall be reported as the increase in width. The difference between the overall thickness and the conductor thickness shall be reported as the increase in thickn
38、ess. 3.2.5 Overall dimension 3.2.5.1 Round wire 3.2.5.1.1 Nominal diameter up to and including 0,200 mm On a straight piece of wire, at three places 1 m apart, one measurement of the overall diameter shall be made. The three single values shall be reported. The mean value represents the overall diam
39、eter. 3.2.5.1.2 Nominal conductor diameter over 0,200 mm On a straight piece of wire, at each of two places 1 m apart, three measurements of the overall diameter shall be made at points evenly distributed around the circumference of the wire. The six single values shall be reported. The mean value r
40、epresents the overall diameter. For determination of the conductor diameter as given in the relevant standards, the following applies: BS EN 60851-2:2009 - - 60851-2 IEC:2009 9 Table 2 Determination of the conductor diameter Nominal conductor diameter Measurement Clause d 0,063 mm d 0,063 mm Resista
41、nce Dimension 3 of IEC 60851-5 3.2.1.1 NOTE By agreement between purchaser and supplier, resistance measurements may be made in the range of nominal conductor diameters over 0,063 mm and up to and including 1,000 mm. 3.2.5.2 Rectangular wire On a straight piece of wire at each of three places at lea
42、st 100 mm apart, one measurement shall be made of the two dimensions of the wire. Where the dimension of the specimen is greater than the diameter of the micrometer spindle, measurements shall be made both at the centre of the face of the specimen and over the edges. If these values differ, only the
43、 highest value shall be noted. The three single values shall be reported for each dimension of the wire. The mean values represent the overall width or the overall thickness respectively. 3.2.5.3 Bunched wire he method indicated below gives useful values in practice, but not an accurate overall diam
44、eter. The overall diameter is the width of a layer wound on a mandrel divided by the number of turns. The bunched wire shall be wound closely on a mandrel according to Figure 1 and under a tension in newtons, which is 65 times the total nominal cross-section of the conductors in square millimetres.
45、The width of the layer shall be not less than 10 mm for bunched wires with overall diameters up to and including 0,5 mm, and be not less than 20 mm for larger diameters and shall be measured with a precision of 0,5 mm. One measurement shall be made. The overall diameter rounded off to 0,01 mm shall be reported. 3.2.6 Increase in diameter due to the bonding layer of enamelled round wire The increase in diameter due to the bonding layer is the difference of the overall diameter with and without the bonding layer. The overa