IEC 62631-3-2:2023 describes methods of test for the determination of surface resistance and surface resistivity of electrical insulation materials by applying DC voltage. This edition includes the following significant technical changes with respect to the previous edition: a) descriptions of the electrode arrangements have been clarified; b) new descriptions of the conductive means have been added; c) a new informative Annex B summarizing the results of the comparative verification study on surface resistivities using different electrode arrangements has been added.<\/p>\n
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| 1<\/td>\n | 30485185 <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | A-30371740 <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | Annex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 59<\/td>\n | 4 Significance 5 Method of test 5.1 General <\/td>\n<\/tr>\n | ||||||
| 60<\/td>\n | 5.2 Voltage 5.3 Equipment 5.3.1 General 5.3.2 Accuracy <\/td>\n<\/tr>\n | ||||||
| 61<\/td>\n | 5.3.3 Voltage source 5.3.4 Electrode arrangements <\/td>\n<\/tr>\n | ||||||
| 62<\/td>\n | Figures Figure 1 \u2013 Electrode arrangement A (example) <\/td>\n<\/tr>\n | ||||||
| 63<\/td>\n | Figure 2 \u2013 Electrode arrangement B (example) <\/td>\n<\/tr>\n | ||||||
| 64<\/td>\n | Figure 3 \u2013 Electrode arrangement C (example) Tables Table 1 \u2013 Typical electrode dimensions for electrode arrangement C <\/td>\n<\/tr>\n | ||||||
| 65<\/td>\n | 5.4 Test circuit <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | 5.5 Calibration 5.6 Test specimen 5.6.1 Recommended dimensions of test specimen and electrode arrangements 5.6.2 Manufacturing of test specimen Figure 4 \u2013 Connection diagram of measurement with two- and three-terminal electrode arrangements <\/td>\n<\/tr>\n | ||||||
| 67<\/td>\n | 5.6.3 Number of test specimens 5.6.4 Application of conductive means 5.6.5 Conditioning and pre-treatment of test specimen <\/td>\n<\/tr>\n | ||||||
| 68<\/td>\n | 5.7 Test procedure 6 Calculation of surface resistivity 6.1 For electrode arrangements A, B, D and E 6.2 For electrode arrangement C <\/td>\n<\/tr>\n | ||||||
| 69<\/td>\n | 7 Test report 8 Repeatability and reproducibility <\/td>\n<\/tr>\n | ||||||
| 70<\/td>\n | Annex A (informative) Specimen dimensions and electrode arrangements Table A.1 \u2013 Recommended test specimen dimensions and electrode arrangements for specific products <\/td>\n<\/tr>\n | ||||||
| 71<\/td>\n | Annex B (informative) Comparative verification study on surface resistivities using different electrode arrangements (type C and type E) B.1 General B.2 Inter-laboratory trial conditions B.2.1 General B.2.2 Test specimens B.2.3 Electrode types, conductive materials and test voltage Table B.1 \u2013 Test specimens characteristics <\/td>\n<\/tr>\n | ||||||
| 72<\/td>\n | B.2.4 Test conditions B.3 Summary of the test results Figure B.1 \u2013 Surface resistivity equations for the used electrodes Table B.2 \u2013 Test conditions per specific participant <\/td>\n<\/tr>\n | ||||||
| 73<\/td>\n | B.4 Inter-laboratory trial outcomes and suggestions for IEC 62631-3-2 B.5 Detailed inter-laboratory results B.5.1 General Table B.3 \u2013 Summary of the test results <\/td>\n<\/tr>\n | ||||||
| 74<\/td>\n | B.5.2 Laboratories results by different groups of electrode types and conductive materials for the different test specimens Table B.4 \u2013 Polybutylene terephthalate (PBT) test specimen results \u2013 Electrode type C with conductive rubber <\/td>\n<\/tr>\n | ||||||
| 75<\/td>\n | Table B.5 \u2013 Polyamide 66 (PA66) test specimen results \u2013 Electrode type C with conductive rubber <\/td>\n<\/tr>\n | ||||||
| 76<\/td>\n | Table B.6 \u2013 Polybutylene terephthalate (PBT) test specimen results \u2013 Electrode type C with conductive silver paint <\/td>\n<\/tr>\n | ||||||
| 77<\/td>\n | Table B.7 \u2013 Polyamide 66 (PA66) test specimen results \u2013 Electrode type C with conductive silver paint <\/td>\n<\/tr>\n | ||||||
| 78<\/td>\n | Table B.8 \u2013 Polybutylene terephthalate (PBT results) test specimen results \u2013 Electrode type E with conductive silver paint <\/td>\n<\/tr>\n | ||||||
| 79<\/td>\n | Table B.9 \u2013 Polyamide 66 (PA66) test specimen results \u2013 Electrode type E with conductive silver paint <\/td>\n<\/tr>\n | ||||||
| 80<\/td>\n | B.5.3 Laboratory 2 results comparing different electrode types and conductive materials Table B.10 \u2013 Laboratory 2 results \u2013 Polybutylene terephthalate (PBT) \u2013 Different electrodes and conductive materials <\/td>\n<\/tr>\n | ||||||
| 81<\/td>\n | Table B.11 \u2013 Laboratory 2 results \u2013 Polyamide 66 (PA66) \u2013 Different electrodes and conductive materials <\/td>\n<\/tr>\n | ||||||
| 82<\/td>\n | B.5.4 Laboratory 3 results \u2013 Electrode type C with and without use of conductive silver paint Table B.12 \u2013 Laboratory 3 results \u2013 Polybutylene terephthalate (PBT) \u2013 Electrode type C with and without conductive silver paint <\/td>\n<\/tr>\n | ||||||
| 83<\/td>\n | Table B.13 \u2013 Laboratory 3 results \u2013 Polyamide 66 (PA66) \u2013 Electrode type C with and without conductive silver paint <\/td>\n<\/tr>\n | ||||||
| 84<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Tracked Changes. Dielectric and resistive properties of solid insulating materials – Determination of resistive properties (DC methods). Surface resistance and surface resistivity<\/b><\/p>\n |