🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN IEC 60172:2021

BS EN IEC 60172:2021

$142.49

Test procedure for the determination of the temperature index of enamelled and tape wrapped winding wires

Published By Publication Date Number of Pages
BSI 2021 32
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This International Standard specifies, in accordance with the provisions of IEC 60216-1, a method for evaluating the temperature index of enamelled wire, varnished or unvarnished with an impregnating agent, and of tape wrapped round and rectangular wire, in air at atmospheric pressure by periodically monitoring changes in response to AC proof voltage tests. This procedure does not apply to fibre-insulated wire or wire covered with tapes containing inorganic fibres.

NOTE The data obtained according to this test procedure provide the designer and development engineer with information for the selection of winding wire for further evaluation of insulation systems and equipment tests.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publications with their corresponding European publications
7 English
CONTENTS
9 FOREWORD
11 1 Scope
2 Normative references
3 Terms and definitions
12 4 Summary of procedure
5 Test specimens
5.1 Preparation
5.1.1 Enamelled non-tape wrapped round wire
13 Figures
Figure 1 – Device used to form enamelled round wire test specimen
Figure 2 – Spacer
Tables
Table 1 – Force and number of twists for specimens
14 Figure 3 – Twist forming jig
Figure 4 – Test specimen set up in forming jig
15 5.1.2 Tape wrapped round wire and enamelled or tape wrapped rectangular wire
Figure 5 – Test specimen formed with loop cut
Table 2 – Proof voltage for round enamelled wire
16 Figure 6 – Jig for bending large magnet wire, dielectric test specimen
17 5.2 Varnish impregnation
Figure 7 – Forming jig and test specimen
18 5.3 Notes on number of test specimens
5.4 Specimen holder
5.4.1 For specimens according to 5.1.1
5.4.2 For specimens according to 5.1.2
Figure 8 – Specimen holder
19 6 Temperature exposure
Table 3 – Recommended exposure times in days per cycle
20 7 Test voltage and its application
Table 4 – Proof voltage for tape-wrapped round and for enamelledor tape-wrapped rectangular wire
21 8 Calculations
8.1 Specimen failure time
8.2 Time to failure
8.3 Linearity of data
22 8.4 Calculating and plotting thermal endurance and temperature index
Figure 9 – Thermal endurance graph – Temperature index
23 9 Report
24 Annex A (normative) Method for calculation of the regression line
26 Table A.1 – Commonly used test temperatures in degrees Celsius and the corresponding kelvins with its reciprocal and reciprocal squared values
27 Table A.2 – Sample calculation
28 Figure A.1 – Plot of regression line based on sample calculation (Table A.2)
29 Annex B (normative) Correlation coefficient
30 Bibliography

Related products

BS EN IEC 60172:2021
$142.49