What is BS EN IEC 60401-1about?
BS EN IEC 60401-1 is the first part in the multi-series of international standards that provides a nomenclature of the most frequent surface, bulk, and shape irregularities relevant to cores made of soft ferrites (magnetic oxides). Most irregularities are graphically exemplified as visual aids.
BS EN IEC 60401-1also presents a method for defining the designation nomenclature for the major physical attributes of soft ferrite core shapes. The purpose of this BS EN IEC 60401-1 is to facilitate uniform usage of dimensional characters by manufacturers, specifiers, and users when describing core dimensions on drawings, in tables, and on catalogue specification sheets.
Who is BS EN IEC 60401-1for?
BS EN IEC 60401-1 on vocabulary for cores made of magnetically soft ferrites is relevant to:
- Ferrite core manufacturers and suppliers
- Transformer manufacturers
- Telecommunication industries
- Electronics industry
- Technical documentation professionals
Why should you use BS EN IEC 60401-1?
There is a great variety of surface, bulk and shape irregularities degrading the quality of parts made of ferrites. Different types of these irregularities can often occur together and overlap one another. Moreover, the irregularities can in extreme cases have a detrimental or critical effect on magnetic, electric and mechanical performances of the part. Operations performed on the part, such as marking, winding, assembling and mounting, can also be adversely affected by the irregularities.
An ongoing tendency to upgrade the overall quality of the parts results in more stringent restrictions being imposed on the quantity of irregularities in these parts. This brings about a need for a set of definitions, or nomenclature, which would be a primary basis for approaches to irregularities and their location issues.
To meet this need, BS EN IEC 60401-1 intended to be used as a uniform reference when formulating more detailed descriptions of irregularities at specified locations, requirements and procedures related to the inspection and assessment of irregularities. BS EN IEC 60401-1 can also be useful with regard to methods and tools used for detection, recognition and classification of irregularities.
What’s changed since the last update?
BS EN IEC 60401-1:2020 supersedes BS EN 60401‑1:2005, which is withdrawn. Some of the changes are:
- Added the surface irregularity term “pores” and “scratch”
- Replaced the surface irregularity term “stratification” with “lamination”
- Replaced the location related terms “upper surface of back” with “bottom surface” and “lower surface of back” with “back surface”
