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BS EN 60851-3:1998

$167.15

Methods of test for winding wires – Mechanical properties

Published By Publication Date Number of Pages
BSI 1998 42
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PDF Pages PDF Title
1 BRITISH STANDARD
2 National foreword
4 Foreword
Foreword to amendment A2
Contents
7 Introduction
1 Scope
2 Normative references
3 Test 6: Elongation
3.1 Elongation at fracture
3.2 Tensile strength
8 4 Test 7: Springiness
4.1 Round wire with a nominal conductor diameter from�0,080�mm up to and including�1,600�mm
9 4.2 Round wire with a nominal conductor diameter over�1,600�mm and rectangular wire
5 Test 8: Flexibility and adherence
5.1 Mandrel winding test
10 5.2 Stretching test (applicable to enamelled round wire with a nominal conductor diameter over�1,…
11 5.3 Jerk test (applicable to enamelled round wire with a nominal conductor diameter up to and inc…
5.4 Peel test (applicable to enamelled round wire with a nominal conductor diameter over�1,000�mm)
5.5 Adherence test
12 6 Test 11: Resistance to abrasion
6.1 Principle
6.2 Equipment
6.3 Procedure
13 7 Test 18: Heat bonding
7.1 Vertical bond retention of a helical coil
14 Table 4 Preparation of helical coils
7.2 Bond strength of a twisted coil
16 Figure 1 Test equipment to determine springiness
Figure 2 Construction and details of the mandrel
17 Figure 3 Test equipment to determine springiness
18 Figure 4 Test equipment for mandrel winding test
19 Figure 5 Test equipment for jerk test
20 Figure 6 Test equipment for peel test
Figure 7 Scraper
Figure 8 Cross-section of the wire after removal of the coating
21 Figure 9 Test equipment for unidirectional scrape test
22 Figure 10 Test equipment for bond retention of a helical coil
23 Figure 11 Coil winder
24 Figure 12 Oval shape coil
Figure 13 Twisting device with a load applied to the twisted coil specimen
25 Figure 14 Arrangement of supports
26 Annex A (informative) Bond strength of heat bonding wires
A.1 Calculation of the temperature of the twisted coil specimen
27 A.2 Determination of the heating period
28 Figure A.1 Example of voltage-time graphs of twisted coil specimens with a nominal conductor diameter of�0,3…
29 Figure A.2 Example of voltage-time graphs of twisted coil specimens with a nominal conductor diameter of 0,3…
30 Figure A.3 Example of voltage-time graphs of twisted coil specimens with a nominal conductor diameter of�0,3…
31 Figure A.4 Example of voltage-time graphs of twisted coil specimens with a nominal conductor diameter of�0,5…
32 Annex B (informative) Friction test methods
B.1 General
B.2 Test A: Static coefficient of friction test method
B.3 Test B: First dynamic coefficient of friction test method
33 B.4 Test C: Second dynamic coefficient of friction test method
34 B.5 Test D: Force of friction by the twisted pair method
35 B.6 Reference document
36 Figure B.1 Static coefficient of friction test apparatus
37 Figure B.2 Dynamic coefficient of friction test apparatus
38 Figure B.3 Dynamic coefficient of friction test apparatus
39 Figure B.4 Detail drawing of friction head assembly with mechanical dynamometer
40 Figure B.5 Load block with sapphires
figure B.6 Twisted specimen
41 Annex ZA (normative) Normative references to international publications with their corresponding European …
BS EN 60851-3:1998
$167.15