This standard specifies the technical requirements, inspection methods, inspection rules, marking, packaging, transportation and storage of damping magnetic steel components of electric meters. This standard is applicable to damping magnetic steel components for induction system watt-hour meters with a measurement frequency of 45 to 65 Hz.
JB/T 5468-1991 history
1991JB/T 5468-1991 Specification for casting magnetic steel of watt-hour meter