GB/T 7676.4-2017

Active

Direct 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

Standard Type
GBT
ICS
17.220.20
CCS
N21
Status
Active
Issue Date
2017-09-07
Implementation
2018-04-01
Centralized Committee
中国机械工业联合会
Issuing Authority
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies the special requirements for direct acting analogue frequency meters, including their accuracy, performance, and testing methods. It is applied in the design, manufacturing, and verification of panel-mounted frequency meters used in electrical power systems, industrial control panels, and laboratory measurement equipment. The standard ensures reliable frequency measurement in AC circuits, typically at 50 Hz or 60 Hz, for monitoring and protection purposes.

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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.