GB/T 3655-2008 (English Version)

Standard No.: GB/T 3655-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2022-10
Replace By: GB/T 3655-2022
Latest: GB/T 3655-2022
Replace: GB/T 3655-2000

Scope: This standard is applicable to the measurement of AC magnetic properties and the measurement of DC magnetic properties of grain-oriented and non-grain-oriented electrical steel sheets (strips) with a frequency upper limit of 400 Hz. The purpose of this standard is to clarify the general principles and technical details of measuring the magnetic properties of electrical steel sheets (strips) with Epstein square circles. Epstein square rings are suitable for measuring samples made from various grades of electrical steel sheets (strips). The determination of its AC magnetic properties is carried out under the conditions of a given peak value of magnetic polarization (or peak value of magnetic field strength) and a given frequency and sinusoidal induced voltage. The measurement is carried out at an ambient temperature of 23°C±5°C, and the sample should be demagnetized before the test. Measurements at higher frequencies should be carried out in accordance with the provisions of GB/T 10129.

GB/T 3655-2008 Referenced Document

GB/T 10129-1988 Methods of measurement of magnetic properties of magnetic steel sheet and strip at medium frequencies
GB/T 19289 Methods of measurement of resistivity，density and stacking factor of electrical steel strip and sheet*， 2019-06-04 Update
GB/T 3102.5-1993 Quantities and units of electricity and magnetism
IEC 60404-4:2000 Magnetic materials - Part 4: Methods of measurement of d.c. magnetic properties of magnetically soft materials

2022 GB/T 3655-2022 Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of an epstein frame
2008 GB/T 3655-2008 Methods of measurement of the magnetic properties of electrical steel sheet and strip by means of an Epstein frame
2000 GB/T 3655-2000 Methods of measurement of the magnetic properties of electrical steel sheet and strip by means of an Epstein frame
1992 GB/T 3655-1992 Magnetic sheet and strip—Methods of measurement of magnetic electrical physical properties