IEC 63182-2:2020 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of ring-cores (also called toroids) made of magnetic powder, the effective parameter values to be used in calculations involving them, and gives guidelines on allowable limits of surface irregularities applicable to coated ring-cores. The selection of core sizes for this document is based on the philosophy of including those sizes which are industrial standards, meaning that they are in broad-based use within the industry. This document is considered as a sectional specification useful in the negotiations between magnetic powder core manufacturers and users about surface irregularities.<\/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 3 Terms and definitions 4 Primary standards 4.1 General <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 4.2 Dimension descriptions 4.3 Dimensions of ring-cores 4.4 Chamfered edges Figures Figure 1 \u2013 Dimensions of ring-cores Figure 2 \u2013 Chamfered edges of ring-cores Table 1 \u2013 Dimensions descriptions <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4.5 Effective parameter values Table 2 \u2013 Dimensions and geometrically calculated values for ring-cores <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 5 Limits of surface irregularities 5.1 Cracks 5.2 Peeling Figure 3 \u2013 Cracks <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 5.3 Pinholes 5.4 Sharp chamfered edge Figure 4 \u2013 Peeling Figure 5 \u2013 Pinholes Figure 6 \u2013 Sharp chamfered edge <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5.5 Bubbles 5.6 Unevenness Figure 7 \u2013 Bubbles Figure 8 \u2013 Unevenness <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Annex A (normative)Calculation method for the effective parameters of ring-cores <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Magnetic powder cores. Guidelines on dimensions and the limits of surface irregularities – Ring-cores<\/b><\/p>\n |