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GB/T 7676.4-2017: Direct acting indicating analogue electrical measuring instruments and their accessories -- Part 4: Special requirements for frequency meters
Status: Valid GB/T 7676.4: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 7676.4-2017 | English | 239 |
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Direct acting indicating analogue electrical measuring instruments and their accessories -- Part 4: Special requirements for frequency meters
| Valid |
GB/T 7676.4-2017
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| GB/T 7676.4-1998 | English | 239 |
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Direct acting indicating analogue electrical measuring instruments and their accessories. Part 4: Special requirements for frequency meters
| Obsolete |
GB/T 7676.4-1998
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| GB/T 7676.4-1987 | English | RFQ |
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Direct acting indicating analogue electrical measuring instruments and their accessories--Special requirements for frequency meters
| Obsolete |
GB/T 7676.4-1987
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PDF similar to GB/T 7676.4-2017
Basic data | Standard ID | GB/T 7676.4-2017 (GB/T7676.4-2017) | | Description (Translated English) | Direct acting indicating analogue electrical measuring instruments and their accessories -- Part 4: Special requirements for frequency meters | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N21 | | Word Count Estimation | 12,185 | | Date of Issue | 2017-09-07 | | Date of Implementation | 2018-04-01 | | Older Standard (superseded by this standard) | GB/T 7676.4-1998 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 7676.4-2017: Direct acting indicating analogue electrical measuring instruments and their accessories -- Part 4: Special requirements for frequency meters
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 4. Special requirements for frequency meters
ICS 17.220.20
N21
National Standards of People's Republic of China
Replacing GB/T 7676.4-1998
Direct acting analogue indicating electrical measuring instruments and their accessories
Part 4. Particular requirements for frequency tables
theiraccessories-Part 4.Specialrequirementsforfrequencymeters
2017-09-07 Posted
2018-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
GB/T 7676 "Direct-acting analog indicator electrical measuring instruments and their attachments" consists of the following 9 parts.
--- Part 1. Definition and general requirements;
--- Part 2. Ammeter and voltmeter special requirements;
--- Part 3. Power meter and reactive power meter special requirements;
--- Part 4. Frequency table special requirements;
--- Part 5. Phase table, power factor meter and synchronization indicator of the special requirements;
--- Part 6. Resistance table (impedance meter) and the specific requirements of the conductance table;
--- Part 7. Multi-functional instrument of the special requirements;
--- Part 8. Specific requirements of annexes;
--- Part 9. Recommended test methods.
This section GB/T 7676 Part 4.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 7676.4-1998 "direct acting analogue electrical measuring instruments and their accessories Part 4. Frequency Table Special
Special requirements. "
Compared with GB/T 7676.4-1998, the change is bigger. Using uncertainty instead of error, the standard structure was adjusted and multiple bars were modified
For details, see Appendix B.
Please note that some of this document may be patentable. The issuing agencies of this document do not bear the responsibility of identifying these patents.
This part is proposed by China Machinery Industry Federation.
This part of the National Electrical Instrumentation Standardization Technical Committee (SAC/TC104) centralized.
This section mainly drafted units. Zhejiang Institute of Metrology, Harbin Institute of Electrical Instrumentation, State Grid Hunan Provincial Power Company Electric Power
Institute of Science and Technology, Instrument Co., Ltd. Zhongnan, State Grid Chongqing Electric Power Company Electric Power Research Institute, Shanghai Institute of Measurement and Testing Technology, the country
Jiangxi Provincial Electric Power Company Electric Power Research Institute, State Grid Hubei Electric Power Company Electric Power Research Institute, Zhejiang Chint Instruments limited liability
Company, State Grid Beijing Electric Power Company, Shenzhen Youxu Technology Co., Ltd., Shanghai Kang Bili Instrument Co., Ltd., Shanghai Ying Fu Te Electronics
Technology Co., Ltd., Henan Institute of Metrology, Zhejiang Dixon Electric Co., Ltd., Shenzhen Xinglong Technology Co., Ltd., State Grid IV
Sichuan Electric Power Company Measurement Center, Beijing Automation Control Equipment Factory, Delixi Group Instrument Co., Ltd., Henan Provincial Power Company Electric Power
Scientific Research Institute, Hebei Electric Power Co., Ltd. Measurement Center, Shandong Institute of Metrology, Holley Technology Co., Ltd., National Electrical Instrument
Instrumentation Quality Supervision and Inspection Center, Xi'an Li Bei'an Intelligent Technology Co., Ltd., Yiwu Yuantai Intelligent Technology Co., Ltd.
The main drafters of this section. Zheng Mengxia, Huo Jianhua, Lai, Wang Nai Li, Cui Tao, Pei Maolin, Qin Guoxin, Chen Bo, Shen Li, Liu Xiancheng,
Xue Dejin, Jin Shaoping, Lin Xiaolong, Wu Weide, Liu Dan, Ding Zhen, Gan Yiyi, Zhou Lixia, Li Ji, Wang Weneng, Bai Tai, Guo Xiaoguang,
Wang Xinjun, Li Rongping, Liu Furuo, Zhao Jinjin, Feng Xueli, Hou Xingzhe, Wang Sanqiang, Zhao Duo, Yuan Huijie, Liu Pei, Shao Fengyun, Cai Yi,
Zheng Yuanbao, had Shi Tu, Huang Jianzhong, Bi Wei, Xie Ping, Chen Shuangjie.
This part replaces the standards previously issued as.
--- GB/T 7676.4-1987, GB/T 7676.4-1998.
Direct acting analogue indicating electrical measuring instruments and their accessories
Part 4. Particular requirements for frequency tables
1 Scope
This section GB/T 7676 specifies the direct role of analog electrical measurement frequency meter terms and definitions, classification, grading, common technology
Requirements, information, signs and symbols, packaging and storage and inspection rules.
This section applies to direct the role of analog frequency table instructions.
This section also applies to a combination of frequency tables and accessories when an attachment is used with a frequency meter and adjusted in combination.
This section also applies to the frequency meter with electronics in its measurement and/or auxiliary circuits.
This section does not apply to the corresponding national standards for special-purpose frequency table.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 7676.1-2017 Direct acting analogue indicating electrical measuring instruments and their accessories Part 1. Definitions and general requirements
GB/T 7676.9-2017 Direct acting analogue indicating electrical measuring instruments and their accessories Part 9. Recommended test methods
3 Terms and definitions
GB/T 7676.1-2017 defined terms and definitions apply to this document.
4 Classification, grading and compliance
4.1 Classification
4.1.1 by the working methods and characteristics of classification
Frequency table divided into. Analog frequency meter and vibrating spring frequency meter.
4.1.2 by the use of classification
According to GB/T 7676.1-2017 in the provisions of 4.1.2.
4.1.3 Classified by environmental conditions
According to GB/T 7676.1-2017 in the provisions of 4.1.3.
4.1.4 classified by mechanical conditions
According to GB/T 7676.1-2017 in the provisions of 4.1.4.
4.1.5 according to the classification of enclosure protection
According to GB/T 7676.1-2017 in the provisions of 4.1.5.
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