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JJG 1052-2009 English PDF

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JJG 1052-2009: Verification Regulation of Loop Resistance Tester and DC Resistance Meters
Status: Valid

JJG 1052: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJG 1052-2009	English	559	Add to Cart	5 days [Need to translate]	Verification Regulation of Loop Resistance Tester and DC Resistance Meters	Valid	JJG 1052-2009
JJG 1052-1996	English	RFQ	ASK	3 days [Need to translate]	Calibreation Specification For Fibre Fineness Tester of Air-flow Method	Obsolete	JJG 1052-1996

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Basic data

Standard ID	JJG 1052-2009 (JJG1052-2009)
Description (Translated English)	Verification Regulation of Loop Resistance Tester and DC Resistance Meters
Sector / Industry	Metrology & Measurement Industry Standard
Classification of Chinese Standard	A55
Classification of International Standard	17.220
Word Count Estimation	24,234
Date of Issue	2009-10-09
Date of Implementation	2010-01-09
Quoted Standard	JJF 1059-1999; GB/T 4793.1-2007; JJF 1001-1998
Regulation (derived from)	AQSIQ Announcement No. 113 of 2009
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine
Summary	This standard applies to new production, use, and post-repair digital loop resistance tester and direct resistance meter (measured object inductive DC resistance tester, hereinafter referred to as direct resistance meter) of the initial verification, testing and use of follow-up inspection.

JJG 1052-2009: Verification Regulation of Loop Resistance Tester and DC Resistance 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.
Verification Regulation of Loop Resistance Tester and DC Resistance Meters State verification procedures People's Republic of China Loop resistance tester, resistance meter straight Posted 2009-10-09 2010-01-09 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Loop resistance tester, resistance meter straight Verification Regulation The regulations by the State Administration of Quality Supervision, Inspection and Quarantine October 9, 2009 for approval and self From January 9, 2010 into effect. Focal point. the National Technical Committee on Electromagnetic measurement Main drafting unit. Guangdong Institute of Metrology Participated in the drafting unit. China Institute of Metrology Jiangsu Province Institute of Measurement and Testing Wuhan City into Electric Equipment Factory Test Center Institute of Guangzhou Power Supply Bureau of Guangdong Power Grid Corporation Guangzhou high-speed measurement detection maintenance Ltd. The measurement procedure commissioned the National Technical Committee is responsible for interpreting electromagnetic The main drafters of this procedure. Luo Xudong (Guangdong Institute of Metrology) Ho Yun (Guangdong Institute of Metrology) Shao Haiming (China Institute of Metrology) Drafters participate. Wu Jinxiang (the Guangdong Provincial Institute of Metrology) Fan Yi (Jiangsu Province Institute of Measurement and Testing) Cao Yunfei (Wuhan City into Electric Equipment Factory) Yuan Qiang (Institute of Guangzhou Power Supply Bureau of Guangdong Power Grid Corporation Test Center) ROCKETS (Guangzhou high-speed measurement detection Maintenance Co., Ltd.)

1 Scope (1) 2. Referenced Documents (1) 3 Overview (1) 4 metering performance requirements (1) 4.1 The maximum permissible error (1) 4.2 accuracy class (2) 4.3 Linearity error (2) 4.4 Stability of error (2) 4.5 Resolution (2) 4.6 operating current (2) 4.7 rated current hold time (3) 4.8 direct resistance measuring instrument inductive load (3) 5 General technical requirements (3) 5.1 Appearance and energizing check (3) 5.2 Structure and Function (3) 5.3 Safety requirements (3) 6 Control of measuring instruments (4) 6.1 Verification condition (4) 6.2 Verification Project (5) 6.3 Verification Methods (5) 6.4 Verification Results Processing (9) 6.5 test cycle (9) Appendix A loop resistance tester checks the original record format (10) Appendix B direct resistance Calibrating the original record format (12) Appendix C loop resistance tester test certificate-page format (14) Appendix D loop resistance tester test results in the notice page format (15) Appendix E direct resistance meter test certificate within page format (16) Appendix F direct resistance instrument test results in the notice page format (18) Loop resistance tester, direct resistance meter test procedures

1 Scope

The order applies to new production, use and repair after the digital loop resistance tester and direct resistance meter (flu Of the object to be measured DC resistance tester, hereinafter referred to as direct resistance meter) of the initial verification, verification and subsequent use test.

2 Citations

The regulations cited in the following documents. JJF1059-1999 Evaluation and Expression of Uncertainty in Measurement GB/T 4793.1-2007 measurement, control and laboratory use - Safety requirements for electrical equipment, Part I. pass With requirements JJF1001-1998 common measurement terms and definitions When using this procedure, it should pay attention to using the currently valid version of the documents cited.

3 Overview

Loop resistance tester is used to measure the switches, circuit breakers, transformers and other equipment in contact resistance, loop resistance Special test equipment, the test current of 100A or greater DC current, also known as "the contact resistance tester." Direct resistance measuring instrument is used to measure the specific inductive test objects transformers, transformers, motors and other DC resistance of the windings Test equipment, also known as "fast DC resistance measuring instrument." Loop resistance tester resistance meter straight and are based on a typical four-wire measurement method, by a direct current output, It is applied between the two side buttons examinee and measuring the current flowing through the voltage drop produced by the examinee, and then through the voltage Current ratio derived DC resistance of the examinee. Mainly by the DC current source, a preamplifier, A/D converter, Part of the indicating device and the like.

4 metering performance requirements

4.1 The maximum permissible error 4.1.1 loop resistance tester and direct resistance meter resistance shows the maximum permissible error with the following form. 4.1.1.1 in the form of absolute error Δ = ± (a% Rx b% Rm) (1) Where. Δ --- in the form of absolute error indicates maximum permissible error; Rx --- tester resistance indication; Rm --- tester full-scale value; a --- tester shown resistance value related to the coefficient; b --- tester full-scale value associated factor.

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Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 1052-2009 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.