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JJG 1069-2011: Verification Regulation of DC Shunts
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Verification Regulation of DC Shunts
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JJG 1069-2011
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Basic data | Standard ID | JJG 1069-2011 (JJG1069-2011) | | Description (Translated English) | Verification Regulation of DC Shunts | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A55 | | Classification of International Standard | 17.220 | | Word Count Estimation | 17,194 | | Date of Issue | 2011-07-04 | | Date of Implementation | 2011-10-04 | | Quoted Standard | JJF 1059-1999; JJF 1001-1998; GB/T 7676.1-1998; GB/T 7676.2-1998; GB/T 7676.3-1998; GB/T 7676.4-1998; GB/T 7676.5-1998; GB/T 7676.6- 1998; GB/T 7676.7-1998; GB/T 7676.8-1998; GB/T 7676.9-1998 | | Regulation (derived from) | AQSIQ Announcement No. 104 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to the input rated current 5A ~ 10kA, accuracy 0. 02 ~ 2, and by the copper joints between the slabs or bars consisting of DC shunt resistor element's initial verification, testing and use of follow-up checks. Also suitable for measuring high-power direct current resistance of the test standard. | JJG 1069-2011: Verification Regulation of DC Shunts---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.
Verification Regulation of DC Shunts
State verification procedures People's Republic of China
DC shunt
DCShunts
Issued on. 2011-07-04
2011-10-04 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
DC shunt test procedures
VerificationReg
The regulations by the State Administration of Quality Supervision, Inspection and Quarantine approved on July 4, 2011, and from
From October 4, 2011 into effect.
Focal point. the National Technical Committee on Electromagnetic measurement
The main drafting units. the national high voltage metering station
China Institute of Metrology
Guangdong Provincial Institute of Metrology
Wuhan Long-Electric Equipment Factory
The measurement procedure commissioned the National Technical Committee is responsible for interpreting electromagnetic
The main drafters of this procedure.
Zhang said the Chinese (the national high voltage metering station)
Cao Yunfei (Wuhan Long-Electric Equipment Factory)
Shao Haiming (China Institute of Metrology)
Luo Xudong (Guangdong Institute of Metrology)
table of Contents
1 Scope (1)
2. References (1)
3 Overview (1)
4 metering performance requirements (1)
4.1 accuracy class (1)
4.2 basic error (2)
5 General Requirements (2)
6 Control of measuring instruments (2)
6.1 Verification condition (2)
6.2 Verification Project (3)
6.3 Verification Methods (3)
Processing 6.4 Verification Results (5)
6.5 test cycle (5)
Appendix A test original record format (6)
Appendix B test certificates/test results in the notice page format (page 2) (8)
C calibration certificate/test results test results page notice Shape appendix (3) (9)
Appendix D test shunt other methods (10)
DC shunt test procedures
1 Scope
The order applies to the rated input current of 5A ~ 10kA, the accuracy of 0.02 to 2 grade, made of copper fittings and
DC shunt resistor elements between the plate or rod composed of the initial verification, use and subsequent verification check. Also applies
For measuring high-power direct current resistance test standard.
2. References
This procedure refers to the following documents.
JJF1059-1999 Evaluation and Expression of Uncertainty in Measurement
JJF1001-1998 common measurement terms and definitions
GB/T 7676.1 ~ 9-1998 Direct acting indicating analogue electrical measuring instruments and their accessories
When using this procedure, it should pay attention to using the currently valid version of the documents cited.
3 Overview
DC shunt to measure direct current four-terminal resistance measuring work. It consists of two copper connectors and between
A plate or rod resistance components, the voltage drop across the shunt on the potential of the terminal mounted on the joint leads. Shunts
The rated voltage drop at the standard value selection, such as 75mV. Shunt metrological parameters of the rated input current IN,
Nominal output voltage UN and the nominal shunt resistor RN (RN = UN/IN), when applied to the input current shunt I1, this
When the output voltage of the U2 (when the output current is zero), the actual definition of the shunt resistor is shown RM = U2/I1.
4 metering performance requirements
4.1 accuracy class
4.1.1 DC shunt accuracy level is divided into 0.02, 0.05, 0.1, 0.2, 0.5, 1,
2 7 levels.
Relative error is defined 4.1.2 DC shunt is.
γ = U2-I1RNI1RN × 100%
(1)
4.1.3 DC shunt relative error may also be equivalently expressed as.
γ = RM-RNRN × 100%
(2)
Formula (1), the formula (2). γ --- shunt relative error;
U2 --- shunt output voltage indication, mV;
I1 --- shunt the input current indication, A;
RN --- shunt resistor nominal value, mΩ;
RM --- shunt resistor actual indication, mΩ.
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