|
US$1019.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 7676.1-2017: Direct acting indicating analogue electrical measuring instruments and their accessories -- Part 1: Definitions and general requirements common to all parts
Status: Valid GB/T 7676.1: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 7676.1-2017 | English | 1019 |
Add to Cart
|
6 days [Need to translate]
|
Direct acting indicating analogue electrical measuring instruments and their accessories -- Part 1: Definitions and general requirements common to all parts
| Valid |
GB/T 7676.1-2017
|
| GB/T 7676.1-1998 | English | RFQ |
ASK
|
4 days [Need to translate]
|
Direct acting indicating analogue electrical measuring instruments and their accessories. Part 1: Definition and general requirements common to all parts
| Obsolete |
GB/T 7676.1-1998
|
| GB/T 7676.1-1987 | English | RFQ |
ASK
|
3 days [Need to translate]
|
Direct acting indicating analogue electrical measuring instruments and their accessories--Definitions and general requirements common to all parts
| Obsolete |
GB/T 7676.1-1987
|
PDF similar to GB/T 7676.1-2017
Basic data | Standard ID | GB/T 7676.1-2017 (GB/T7676.1-2017) | | Description (Translated English) | Direct acting indicating analogue electrical measuring instruments and their accessories -- Part 1: Definitions and general requirements common to all parts | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N21 | | Word Count Estimation | 51,526 | | Date of Issue | 2017-09-07 | | Date of Implementation | 2018-04-01 | | Older Standard (superseded by this standard) | GB/T 7676.1-1998 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's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 7676.1-2017: Direct acting indicating analogue electrical measuring instruments and their accessories -- Part 1: Definitions and general requirements common to all parts
---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 1. Definitions and general requirements common to all parts
ICS 17.220.20
N21
National Standards of People's Republic of China
Replacing GB/T 7676.1-1998
Direct acting analogue indicating electrical measuring instruments and their accessories
Part 1. Definitions and general requirements
accessories-Part 1.Definitions and generalrequirementscommontoalparts
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
Directory
Foreword Ⅲ
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
3.1 General Terms 2
3.2 according to their work description of the classification of the instrument 6
3.3 meter structure terms 8
3.4 The characteristics of the instrument 9
3.5 characteristic value 10
3.6 Impact, Reference Conditions, Nominal Use and Preconditioning 10
3.7 Uncertainty and the amount of change 11
3.8 Accuracy level and rating index 13
3.9 Test 13
4 Classification, grading and compliance 13
4.1 Classification 13
4.2 Rating 14
4.3 Compliance with the requirements of this part 14
5 Technical Requirements 15
5.1 Reference conditions 15
5.2 The basic uncertainty limit, the benchmark value of 16
5.3 Nominal use of the range and change 16
5.4 Work Uncertainty, System Integration Uncertainty and Change 18
5.5 Electrical Requirements 19
5.6 Structural Requirements 21
Information, signs and symbols
6.1 Information 25
6.2 General signs and their location 26
6.3 Marking on nominal usage and reference value of impact 26
6.4 Symbols and Symbols for Instruments and Accessories 27
6.5 Terminal symbols and symbols 28
6.6 Operating Manual 33
7 Packaging and storage 33
Inspection rules 34
8.1 Test classification 34
8.2 Type Test 34
8.3 routine test (factory inspection) 34
8.4 Periodic test 34
8.5 Unqualified classification 34
8.6 Determination of test results 34
Appendix A (Normative) Basic uncertainty limits and changes 35
Appendix B (informative) relative humidity limit and the relationship between ambient temperature 37
Appendix C (informative) Basic uncertainty, uncertainty of work and system uncertainty 38
Appendix D (Normative) Basic routine test (factory inspection) Item 41
Appendix E (informative) Major technical changes compared to the previous version 42
Reference 46
Figure 1 measurement range 10A ~ 50A (omitted measurement line outside the subdivision line) 22
Figure 2 measuring range 80V ~ 110V (measuring range ··) 22
Figure 3 Measurement Range 0.06MΩ ~ 0.4MΩ and 0.1MΩ ~ 2MΩ 23
Figure A.1 Temperature effects 35
Figure A.2 Temperature Effect 36
Figure B.1 Ambient temperature and relative humidity 37
Figure C.1 Different types of uncertainty 38
Table 1 Test conditions related to the impact of the reference conditions and allowable deviation 15
Table 2 Nominal use limits and allowable changes in the amount of 17
Table 3 conductive rod thread diameter and contact surface diameter or area 24
Table 4 Symbols of units of measurement 27
Table 5 SI prefix
Table 6 Symbols and Symbols for Instruments and Accessories 29
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 1.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part Replaces GB/T 7676.1-1998 "direct acting analogue electrical measuring instruments and their accessories Part 1. Definitions and generic
Claim".
Compared with GB/T 7676.1-1998, the change is bigger. Added 35 new terms, using uncertainty instead of error, adjusted the standard
Quasi-structure, modified several terms, the specific changes see Appendix E.
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.
The main drafting units in this section. Harbin Institute of Electrical Instrumentation, Shanghai Ying Fu Te Electronic Technology Co., Ltd., Zhejiang Chint Instruments
Limited Liability Company, State Grid Hubei Electric Power Company Electric Power Research Institute, State Grid Jiangxi Electric Power Company Electric Power Research Institute, State Grid Hunan
Provincial Power Company Electric Power Research Institute, State Grid Sichuan Electric Power Company Measurement Center, State Grid Beijing Electric Power Company, Beijing Automation Control Equipment
Equipment Factory, West Germany Instrument Co., Ltd., State Grid Chongqing Electric Power Company Electric Power Research Institute, Henan Electric Power Company Science
Institute, National Electrical instrumentation Quality Supervision and Inspection Center, Hebei Electric Power Co., Ltd. Measurement Center, Shandong Institute of Metrology, deep
Friends of the Shenzhen Science and Technology Co., Ltd., Shanghai Kang Bili Instrument Co., Ltd., Shanghai Institute of Measurement and Testing Technology, Zhejiang Province, Metrology
Institute, Instrument Co., Ltd., South China Institute of Metrology, Zhejiang Dixon Electric Co., Ltd., Shenzhen Xinglong Technology Co., Ltd.
Company, Holley Technology Co., Ltd.
The main drafters of this section.Xue Dejin, Ding Zhen, Pei Maolin, Shen Li, Chen Bo, Liu Xiancheng, Li Ji, Wang Wei, Bai Tai, Qin Guoxin, to Lei,
Huo Jianhua, Cui Tao, Guo Xiaoguang, Chen Wenxin, Wu Weide, Wang Nianli, Hou Xingzhe, Liu Dan, Wang Sanqiang, Jin Shaoping, Zhao Duo, Yuan Huizhi, Gan Yiyi,
Zhou Lixia, Li Daomin, Wang Xinjun, Li Rongping, Liu Furuo, Zheng Mengxia, Zhao Jinjin, Shao Fengyun, Feng Xueli, Lin Xiaolong, Liu Pei, Zheng Yuanbao,
Huang Jianzhong, Cai Yi, had Shi Tu, Liu Wei, Bi Wei.
This part replaces the standards previously issued as.
--- GB/T 776-1965, GB/T 776-1976;
--- GB/T 7676.1-1987, GB/T 7676.1-1998.
Introduction
The original GB/T 7676-1998 is equivalent to using IEC 60051. The main technical content of the standard still reflects the level of 40 years ago.
The twentieth and twenty-first century can be said that technology is changing with each passing day, is the era of rapid development of electronic technology and information explosion. Now simulation
Instrumentation is no longer the world of electromechanical instruments, there have been many analog instrumentation with electronic converter, almost all of the electrical parameters
The number of measurements can be achieved through the electronic converter instrument. The extension of the limit of the annex is no longer a shunt, the world of impedance, Hall transmission
Compared to current diverters, sensors have the advantage of replacing an extended limit device without breaking the current loop. Electronic amplifiers can be small
Current measurement range to further expand. However, the emergence of electronic converters has brought a lot of new situations, such as the impact of waveform distortion,
Electromagnetic compatibility and so on.
To this end, this part of the revision of technical amendments.
According to the current analog indicator of the development of electrical measuring instruments, this technical revision adds a new type of instrument and accessories.
● electronic converter;
● Hall current sensor;
● Hall voltage sensor;
● Open-loop Hall current sensor;
● closed-loop Hall current sensor;
● hand-held instrument;
● module rail table;
● control box rail table;
● board-mounted instrument;
● overload ammeter;
Expanded voltmeter.
As a result of extensive use of electronic devices, the issue of electromagnetic compatibility is highlighted and this revision proposes electromagnetic compatibility requirements and tests
method.
The concept of error seems ambiguous because the truth is not available. This revision in accordance with the provisions of GB/T 6592-2010, the first time
Instrument standards use meter uncertainty instead of error to express measurement results.
In recent years, the international product safety requirements more stringent and clear. International Electrotechnical Commission published IEC 61010-1.2010
"Safety Requirements for Measurement, Control and Laboratory Equipment." In order to adapt to the changes in the world, the latest international security has been adopted in this technical revision
Full standards, and clear the applicable terms.
The original standard conditions of use is basically controlled laboratory conditions of the instrument, and the actual use of the instrument environment is very complex, this
Times revised to expand the use of climate conditions and mechanical environmental conditions, so that the instrument can adapt to a variety of environmental conditions.
In order to use, this revision provides for packaging and storage, provides inspection rules; in order to ensure product quality and stability, in the test type
Increased periodic testing.
Direct acting analogue indicating electrical measuring instruments and their accessories
Part 1. Definitions and general requirements
1 Scope
GB/T 7676 provisions of this part of the direct effect of analog electrical measuring instruments and their Annex Terms and definitions, classification, grading, pass
With technical requirements, information, signs and symbols, packaging and storage and inspection rules.
This section applies to the direct effect of analog instructions indicating the electrical instrumentation, such as.
--- ammeter and voltmeter;
--- Power meter and reactive power meter;
--- Pointer and vibrating frequency meter;
--- Phase meter, power factor meter and synchronization indicator;
--- Resistance meter (impedance meter) and conductance table;
--- The form of multi-function instrument;
This section also applies to.
--- Some of the accessories used in conjunction with the above instruments, such as.
● shunt;
● series resistor and resistor;
● Hall current sensor;
● Hall voltage sensor;
● electronic converter.
--- When the attachment and instrument used in conjunction with the adjustment of the combination of instruments and accessories.
--- Its sub-degree line and the relationship between the input power is known, but not directly correspond to the direct effect of analog instructions electrical measuring instruments.
--- In its measuring and/or auxiliary circuits with electronic devices and accessories.
GB/T 7676 does not apply to.
--- Otherwise the corresponding national standards for special purpose instruments;
--- Otherwise, the corresponding national standards for the annex to the special purpose device.
This section does not provide for the size of the instrument or accessories requirements.
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 191-2008 Packaging - Pictorial signs
GB/T 2423.17-2008 Environmental testing for electric and electronic products Part 2. Test methods Test Ka. Salt spray
GB/T 2423.55-2006 Environmental testing for electric and electronic products Part 2. Test methods Test Eh. Hammer test
GB/T 2829-2002 periodic inspection count sampling procedures and tables (for the stability of the test process)
GB/T 4208-2017 enclosure rating (IP code)
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 7676.1-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 7676.1-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 7676.1-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 7676.1-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB/T 7676.1-2017?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7676.1-2017 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|