BS EN IEC 62631-2-1:2018
$142.49
Dielectric and resistive properties of solid insulating materials – Relative permittivity and dissipation factor. Technical frequencies (0,1 Hz to 10 MHz). AC Methods
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 28 |
This part of IEC 62631 describes test methods for the determination of permittivity and dissipation factor properties of solid insulating materials (AC methods from 0,1 Hz up to 10 MHz).
NOTE This part of the standard mainly considers measuring setups with guard-electrodes.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | English CONTENTS |
| 7 | FOREWORD |
| 9 | INTRODUCTION |
| 10 | 1 Scope 2 Normative references 3 Terms and definitions |
| 11 | 4 Method of test 4.1 General theory |
| 12 | Figures Figure 1 – Dielectric dissipation factor |
| 13 | Figure 2 – Equivalent circuit diagrams |
| 14 | 4.2 Power supply (voltage) 4.3 Equipment 4.3.1 Accuracy 4.3.2 Choice of measuring methods |
| 15 | 4.3.3 Measurement setup with applied electrodes to the material |
| 16 | Figure 3 – Cylindrical electrode with guard ring for plate designed specimen |
| 17 | Figure 4 – Specimen with liquid electrodes |
| 18 | 4.4 Calibration 4.5 Test specimen 4.5.1 General |
| 19 | 4.5.2 Recommended dimensions of test specimen and electrode arrangements 4.5.3 Manufacturing of test specimen 4.5.4 Number of test specimen Table 1 – Test specimen |
| 20 | 4.5.5 Conditioning and pre-treatment of test specimen 4.6 Procedures for specific materials 5 Test procedure 5.1 General 5.2 Calculation of permittivity and relative permittivity 5.2.1 Relative permittivity 5.2.2 The dielectric dissipation factor tan δ 6 Report |
| 21 | 7 Repeatability and reproducibility |
| 22 | Annex A (informative)Basic fundamentals A.1 Error for the effective area in guard ring electrodes – Examples with d1 = 25 mm, 50 mm or 100 mm and w = 1 mm Figure A.1 – Area error of h in e% with Ɛr = 1 Figure A.2 – Area error of h in e% with Ɛr = ∞ Figure A.3 – Error calculation for different Ɛr and d1 |
| 23 | A.2 Computation of edge correction of effective area Figure A.4 – Flow chart for the computation of edge correction of effective area |
| 24 | A.3 Determining H and calculating B Figure A.5 – Factor H versus gap and height |
| 25 | Bibliography |
