BS EN 10252-1997 磁性材料.以中频测量磁钢薄板材和带材磁性能的方法

标准号：BS EN 10252-1997
中文标准名称：磁性材料.以中频测量磁钢薄板材和带材磁性能的方法
英文标准名称：Magnetic materials - Methods of measurement of magnetic properties of magnetic steel sheet and strip at medium frequencies
标准类型：H53
发布日期：1997/6/15 12:00:00
实施日期：1997/6/15 12:00:00
中国标准分类号：H53
国际标准分类号：29.030;77.140.40
适用范围：This European Standard is applicable to electrical steel sheet and strip for the construction of magnetic circuits for use in the frequency range 400 Hz to 10 000 Hz. This European Standard specifies the following methods for the measurement of magnetic properties of electrical steel sheet and strip: - a.c. measurements made with the 25 cm Epstein frame; - determination of specific total losses by the wattmeter method; - determination of magnetic field strength excitation and current and specific apparent power. NOTE. The informative annex A gives the calculation method for the supplementary loss arising from the use of the Epstein frame at medium frequencies.