BS EN IEC 63093-14:2019

What is BS EN IEC 63093-14- Limits of surface irregularities of EFD-cores about?  

BS EN IEC 63093 is an international standard that discusses ferrite cores. The main objective of the BS EN IEC 63093 series is to ensure ferrite cores meet the required quality and performance levels so as to effectively avoid electromagnetic interference.  

BS EN IEC 63093-14 is the 14th part of a multi-series specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of EFD-cores, the essential dimensions of coil formers to be used with them, and the effective parameter values to be used in calculations involving them. 

BS EN IEC 63093-14 also gives the best guidance on the allowable limits of surface irregularities applicable to EFD- cores in accordance with the relevant generic specification. 

Who is BS EN IEC 63093-14- Limits of surface irregularities of EFD-cores for? 

BS EN IEC 63093-14 on ferrite cores is relevant to: 

• Manufacturers of ferrite cores 
• Manufacturers and suppliers of EFD-cores  
• Transformer and inductor manufacturers 
• Electronics industry 

Why should you use BS EN IEC 63093-14- Limits of surface irregularities of EFD-cores?  

A ferrite core is a type of magnetic core made of ferrite on which the windings of electric transformers and other wound components such as inductors are formed. Due to the method of manufacture and the physical nature of the products, ferrite cores can be expected to exhibit some degree of physical irregularities such as chips, ragged edges, cracks, flashing, and pull-outs.  

BS EN IEC 63093-14 gives guidance on allowable limits of surface irregularities applicable to EFD-cores in accordance with the relevant generic specification. 

BS EN IEC 63093-14 also helps identify surface defects in pot-cores, such as chips, cracks, ragged edges, pores and pull-out, which helps in mitigating overall application performance concerns. The limits of these surface irregularities are helpful to determine the extent of damage due to which product failure can occur.  

Compliance with the best industry requirements on dimensions provided by BS EN IEC 63093-14 ensures mechanical interchangeability of complete assemblies and wound coil formers. 

BS EN IEC 63093-14 can thus reduce risk of the transformer's magnetic field interfering with other components within the system. 

What’s changed since the last update? 

BS EN IEC 63093-14:2019 supersedes BS EN 62317-14:2008, which is withdrawn. The significant technical change with respect to IEC 62317- 14:2008 is: 

• Guidelines on the limits of surface irregularities of EFD-cores were added