oSIST prEN IEC 60851-5:2025
(Main)Winding wires - Test methods - Part 5: Electrical properties
Winding wires - Test methods - Part 5: Electrical properties
Wickeldrähte - Prüfverfahren - Teil 5: Elektrische Eigenschaften
Fils de bobinage - Méthodes d'essai - Partie 5: Propriétés électriques
Navijalne žice - Preskusne metode - 5. del: Električne lastnosti
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2025
Navijalne žice - Preskusne metode - 5. del: Električne lastnosti
Winding wires - Test methods - Part 5: Electrical properties
Wickeldrähte - Prüfverfahren - Teil 5: Elektrische Eigenschaften
Fils de bobinage - Méthodes d'essai - Partie 5: Propriétés électriques
Ta slovenski standard je istoveten z: prEN IEC 60851-5:2025
ICS:
29.060.10 Žice Wires
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
55/2066/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60851-5 ED5
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-06-13 2025-09-05
SUPERSEDES DOCUMENTS:
55/2061/CD, 55/2064/CC
IEC TC 55 : WINDING WIRES
SECRETARIAT: SECRETARY:
United States of America Mr Mike Leibowitz
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 2,TC 14
ASPECTS CONCERNED:
Safety
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Winding wires - Test methods - Part 5: Electrical properties
PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.
IEC CDV 60851-5 © IEC 2025 – 3 – 55/2066/CDV
1 CONTENTS
3 1 Scope . 8
4 2 Normative references . 8
5 3 Test 5: Electrical resistance. 8
6 4 Test 13: Breakdown voltage . 9
7 4.1 Principle . 9
8 4.2 Equipment . 9
9 4.3 Enamelled round wire . 10
10 4.3.1 Grade 1 to grade 3 with a nominal diameter up to and including 0,500
11 mm . 10
12 4.3.2 Grade of FIW 3 to FIW 9 with a nominal conductor diameter up to
13 and including 1,600 mm . 11
14 4.4 Enamelled round wire with a nominal conductor diameter over 0,100 mm up
15 to and including 2,500 mm, grade 1 to grade 3 . 12
16 4.4.1 Test at room temperature . 12
17 4.4.2 Test at elevated temperature . 13
18 4.5 Round wire with a nominal conductor diameter over 2,500 mm . 14
19 4.5.1 Test at room temperature . 14
20 4.5.2 Test at elevated temperature . 16
21 4.6 Fibre wound round wire . 16
22 4.6.1 Test at room temperature . 16
23 4.6.2 Test at elevated temperature . 17
24 4.7 Rectangular wire . 17
25 4.7.1 Test at room temperature . 17
26 4.7.2 Test at elevated temperature . 18
27 4.8 Overview of breakdown voltage specimen preparation. 18
28 5 Test 14: Continuity of insulation (applicable to enamelled round and tape wrapped
29 round wire) . 19
30 5.1 General . 19
31 5.2 Low-voltage continuity (nominal conductor diameter up to and including
32 0,050 mm, grade 1 to grade 3) . 20
33 5.3 High-voltage continuity (nominal conductor diameter over 0,050 mm up to
34 and including 1,600 mm, grade 1 to grade 3, and over 0,035 mm, up to and
35 including 1,600 mm, grade 3 of FIW 3 to FIW 9) . 21
36 5.3.1 Principle . 21
37 5.3.2 Equipment . 21
38 5.3.3 Procedure . 26
39 5.3.4 Result . 27
40 5.4 Inline high-voltage continuity (wires in accordance with grade of FIW 3 to
41 FIW 9 with nominal conductor diameter over 0,035 mm up to and including
42 1,600 mm) . 27
43 5.4.1 Principle . 27
44 5.4.2 Equipment . 28
45 5.4.3 Procedure . 28
46 5.4.4 Result . 29
47 5.5 Inline high-voltage continuity (enamelled rectangular wire) . 29
48 6 Test 19: Dielectric dissipation factor (applicable to enamelled wire and bunched
49 wire) . 29
50 6.1 Principle . 29
51 6.2 Equipment . 29
52 6.3 Specimen . 31
53 6.3.1 Specimen for a metal bath electrode . 31
IEC CDV 60851-5 © IEC 2025 – 4 – 55/2066/CDV
54 6.3.2 Specimen for a conductive suspension electrode . 31
55 6.4 Procedure . 31
56 6.5 Result . 31
57 7 Test 23: Pin hole test. 31
58 Annex A (informative) Dissipation factor methods . 33
59 A.1 Tangent delta – Intersection point . 33
60 A.2 Test methods . 33
61 A.2.1 Method A . 33
62 A.2.2 Method B – Wire coated with a conductive film . 34
63 A.3 Interpretation of results . 34
64 A.3.1 General . 34
65 A.3.2 Linear method . 34
66 A.3.3 Logarithmic method . 35
68 Figure 1 – Arrangement of cylinder and specimen for the breakdown voltage test . 11
69 Figure 2 – Device for twisting the specimen for breakdown voltage test . 13
70 Figure 3 – U-bend specimen for the breakdown voltage test (specimen placed in shot
71 bath) . 15
72 Figure 4 – Coil-wound specimen for the breakdown voltage test . 17
73 Figure 5 – Apparatus for testing the low-voltage continuity of covering . 20
74 Figure 6 – High-voltage d.c. continuity – Pulleys for wire size 0,050 mm to 0,250 mm . 23
75 Figure 7 – Pulley dimensions and spacing for wire size 0,250 mm to 1,600 mm . 23
76 Figure 8a – Graphite fibre single brush electrode assembly . 24
77 Figure 8b – Graphite fibre dual brush electrode assembly . 25
78 Figure 8 – Graphite fibre single or dual brush electrode asssembly . 25
79 Figure 9 – Suitable electrode arrangement for testing the dielectric dissipation factor . 30
80 Figure A.1 – Example of linear method for sole coating . 35
81 Figure A.2 – Example of logarithmic method for sole coating . 35
83 Table 1 – Rates of test voltage increase . 9
84 Table 2.1 – Loads applied to enamelled wire . 10
85 Table 2.2 – Loads and diameters of test cylinders applied to wire . 12
86 Table 3 – Loads applied to the wire and number of twists . 13
87 Table 4.1 – Off-line HVC test voltages for grades 1 – 3 . 26
88 Table 4.2 – Off-line HVC test voltages for grade of FIW 3 – FIW 9 . 27
89 Table 5 – In-line HVC test voltages . 29
IEC CDV 60851-5 © IEC 2025 – 5 – 55/2066/CDV
93 INTERNATIONAL ELECTROTECHNICAL COMMISSION
94 ____________
96 WINDING WIRES –
97 TEST METHODS –
99 Part 5: Electrical properties
103 FOREWORD
104 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
105 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
106 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
107 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
108 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
109 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
110 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
111 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
112 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
113 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
114 consensus of opinion on the relevant subjects since each technical committee has representation from all
115 interested IEC National Committees.
116 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
117 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
118 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
119 misinterpretation by any end user.
120 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
121 transparently to the maximum extent possible in their national and regional publications. Any divergence between
122 any IEC Publication and the
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.