GB/T 7676.4-1998
AbolishedDirect acting indicating analogue electrical measuring instruments and their accessories--Part 4:Special requirements for frequency meters
直接作用模拟指示电测量仪表及其附件 第4部分:频率表的特殊要求
Application Summary AI generated
This standard specifies the technical requirements, test methods, and performance criteria specifically for direct-acting analogue frequency meters. It is applied in the manufacturing and quality inspection of panel-mounted or portable frequency meters used in electrical power systems, industrial control panels, and laboratory testing environments to ensure accurate measurement of alternating current (AC) frequency.
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