BS EN 62317-11-2016 pdf free download.Ferrite cores — Dimensions Part 11: EC-cores for use in power supply applications
This part of IEC 6231 7 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of EC-cores, the essential dimensions of coil formers to be used with them, and the effective parameter values to be used in calculations involving them.
The selection of core sizes for this standard is based on the philosophy of including those sizes which are industrial standards, either by inclusion in national standards, or by broadbased use in industry. See 6231 7-1 for more detail concerning the philosophy of selecting core sizes to be included.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
Void.
3 Primary standards
3.1 General
Compliance with the following requirements ensures mechanical interchangeability of complete assemblies and wound coil formers.
3.2 Dimensions of EC-cores
3.2.1 Principal dimensions
The principal dimensions of EC-cores shall be as given in Figure 1 and Table 1 .
3.2.2 Effective parameter and A min values
The effective parameter values of a pair of cores having the dimensions given in 3.2.1 are as shown in Table 2.
A min is specified in IEC 60205:2006, 2.2.BS EN 62317-11 pdf download.