IEC 63129:2020 describes a method, based on measurements combined with calculations, to determine specific characteristics of the inrush current of single and\/or multiple lighting products of the same type. Lighting products include the following: <\/p>\n
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| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 4 Symbols and abbreviated terms 5 General notes on measurements 6 Inrush current measurements <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | Figures Figure 1 \u2013 Determination of the inrush current pulse durations tH10 and tH50 <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 7 DC method (default method) 7.1 Measurement setup Figure 2 \u2013 Measurement setup for the DC method (default method) <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 7.2 Determining the value of the adjustment resistance 7.2.1 Determining the value of Radj,1 Figure 3 \u2013 Switching unit <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 7.2.2 Determining the value of Radj,k Figure 4 \u2013 Typical current rise and voltage decrease as a function of time after loading C1 (step c)) followed by turning on the switching unit (step e)) as described under step f) <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 7.3 Measurement and calculation of the inrush current characteristics 7.3.1 Inrush current characteristics for a single DUT (k = 1) <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 7.3.2 Inrush current characteristics for multiple DUTs 8 Alternative AC method 8.1 General Figure 5 \u2013 Determination of Imax (ignoring the current peaks for t < 100 \u00b5s) <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 8.2 Determining the value of the adjustment resistance 8.2.1 Determining the value of Radj,1 Figure 6 \u2013 Measurement setup for the AC method (alternative method) <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 8.2.2 Determining the value of Radj,k 8.3 Measurement and calculation of the inrush current characteristics 8.3.1 Measuring and calculating the inrush current for a single DUT 8.3.2 Measuring and calculating the inrush current for multiple DUTs <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 9 Additional alternative methods Figure 7 \u2013 Addition of m DUTs to the measurement circuit (both DC and AC methods) <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Annex A (informative)Application of inrush current characteristics A.1 General A.2 Matching of DUT inrush current characteristics with switch or MCB specifications <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Determination of inrush current characteristics of lighting products<\/b><\/p>\n |