IEC 60112:2020 specifies the method of test for the determination of the proof and comparative tracking indices of solid insulating materials on pieces taken from parts of equipment and on plaques of material using alternating voltage. This document provides a procedure for the determination of erosion when required. This test method evaluates the composition of the material as well as the surface of the material being evaluated. Both the composition and surface condition directly influence the results of the evaluation and are considered when using the results in material selection process. Test results are not directly suitable for the evaluation of safe creepage distances when designing electrical apparatus. This basic safety publication focusing on a safety test method is primarily intended for use by technical committees in the preparation of safety publications in accordance with the principles laid down in IEC Guide 104 and lSO\/lEC Guide 51. This edition includes the following significant technical changes with respect to the previous edition: <\/p>\n
It has the status of a basic safety publication in accordance with IEC Guide 104.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4 Principle 5 Test specimen <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 6 Test specimen conditioning 6.1 Environmental conditioning 6.2 Test specimen surface state 7 Test apparatus 7.1 Electrodes <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 7.2 Test circuit 7.3 Test solutions <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 7.4 Dropping device 7.5 Test specimen support platform 7.6 Electrode assembly installation 7.7 Conditioning chamber <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 8 Basic test procedure 8.1 General 8.2 Preparation 8.3 Test procedure <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 9 Determination of erosion 10 Proof tracking index test (PTI) 10.1 Procedure 10.2 Report <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 11 Determination of comparative tracking index (CTI) 11.1 General 11.2 Screening test <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 11.3 Determination of the maximum 50 drop withstand voltage <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 11.4 Determination of the 100 drop point 11.5 Report <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Figures Figure 1 \u2013 Electrode Figure 2 \u2013 Electrode\/specimen arrangement Figure 3 \u2013 Example of typical electrode mounting and specimen support <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Figure 4 \u2013 Example of test circuit <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Annex A (informative)List of factors that should be considered by product committees <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Annex B (informative)Solution B <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Annex C (informative)Electrode material selection C.1 Platinum electrodes C.2 Alternatives <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Method for the determination of the proof and the comparative tracking indices of solid insulating materials<\/b><\/p>\n |