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JJG 690-2003 English PDF

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JJG 690-2003: Verification Regulation of High Insulation Resistance Meters
Status: Valid

JJG 690: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 690-2003English709 Add to Cart 5 days [Need to translate] Verification Regulation of High Insulation Resistance Meters Valid JJG 690-2003
JJG 690-1990English839 Add to Cart 6 days [Need to translate] Verification Regulation of High Insulation Resistance Meter Obsolete JJG 690-1990

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Basic data

Standard ID JJG 690-2003 (JJG690-2003)
Description (Translated English) Verification Regulation of High Insulation Resistance Meters
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A55
Word Count Estimation 27,279
Date of Issue 2003-09-23
Date of Implementation 2004-03-23
Older Standard (superseded by this standard) JJG 690-1990
Quoted Standard JJF 1001-1998; JJF 1059-1999; GB/T 13983-1992; GB 4793-1995; GB/T 14913-1994
Regulation (derived from) State Administration of Quality Supervision, Inspection and Quarantine Notice 2003 No. 106
Issuing agency(ies) State Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to a test machine with the amplifier, the DC rated working voltage not exceeding 1000V, direct measurement instructions 1000M�� digital and analog resistance above indicate a high insulation resistance meter (hereinafter referred to as the impedance meter) of the first test, follow-up tests and the use of the test. This procedure does not apply to insulation resistance meter, ohm meter test. This procedure does not involve verification impedance measuring electrodes.

JJG 690-2003: Verification Regulation of High Insulation 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 High Insulation Resistance Meters National Metrology Verification Regulations of the People's Republic High insulation resistance measuring instrument (high resistance meter) Released on.2003-09-23 2004-03-23 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Replace JJG 690-1990 This verification procedure was approved by the General Administration of Quality Supervision, Inspection and Quarantine on September 23,.2003. It will be implemented as of March 23,.2004. Focal Point. National Electromagnetic Measurement Technical Committee Main drafting unit. Beijing Institute of Metrology Participated in drafting unit. China Institute of Metrology This procedure entrusts the National Electromagnetic Measurement Technical Committee to explain The main drafters of this procedure. Du Juan (Beijing Institute of Metrology) Gao Xiuqin (Beijing Institute of Metrology) This procedure participates in the drafters. Liang Bo (China Institute of Metrology)

table of Contents

1 Scope (1) 2 Citations (1) 3 noun terms (1) 4 Overview (1) 4.1 Composition of high resistance meter (1) 4.2 Calculation formula for measuring resistance with high resistance meter (1) 4.3 Type of high resistance meter (2) 5 Metrological performance requirements (2) 5.1 Basic error of resistance measurement (2) 5.2 Accuracy level (2) 5.3 terminal voltage (3) 5.4 Repeatability (3) 6 General technical requirements (3) 6.1 Appearance (3) 6.2 Marks (3) 6.3 Display (3) 6.4 Resolution (3) 6.5 terminal voltage ripple content (4) 6.6 Insulation resistance (4) 6.7 Dielectric strength (4) 7 Measuring instrument control (4) 7.1 Verification conditions (4) 7.2 Verification project (4) 7.3 Verification method (5) 7.4 Processing of verification results (10) 7.5 Verification cycle (11) Appendix A Basic Structure of High Resistance Meter (12) Appendix B Verification of the basic error of the high resistance meter by voltage compensation method (15) Appendix C Verification of the basic error of high resistance meter by current and voltage method (17) Appendix D High Resistance Meter Verification Certificate Page Format (19) Appendix E High-resistance meter verification result notice page format (20) Appendix F High Resistance Meter Verification Original Record (21) High insulation resistance measuring instrument (high resistance meter) verification procedure

1 Scope

This procedure is applicable to the test amplifier in the machine, its DC rated working voltage is not more than 1000V, and can be directly measured. Digital indication and analog indication high insulation resistance measuring instrument with a capacity of 1000MΩ or more (hereinafter referred to as high resistance meter) First verification, follow-up verification and inspection in use. This procedure does not apply to the verification of insulation resistance meters and ohmmeters. This procedure does not involve the inspection of high resistance meter measuring electrodes. set.

2 Citations

This procedure refers to the following documents. JJF1001-1998 General Terms and Definitions JJF1059-1999 "Measurement and Expression of Measurement Uncertainty" GB/T 13983-92 "Basic Terminology of Instrumentation" GB 4793-1995 "Safety requirements for electrical equipment for measurement, control and laboratory use" GB/T 14913-94 "DC digital voltmeter and DC analog-to-digital converter" Note. When using this procedure, care should be taken to use the current valid version of the above cited documents.

3 noun terms

3.1 High insulation resistance measuring instrument Direct measurement of insulation resistance values of insulating materials, general electrical products and electronic components, and high value resistors Electrical measuring instrument for resistance values. There are test amplifiers and indicating instruments in the instrument, and the DC rated working voltage is not large. At 1000V. 3.2 Rated voltage The nominal value of the output voltage at the open end of the measuring terminal. 3.3 terminal voltage Measure the measured value of the output voltage when the terminal is in the open state.

4 Overview

4.1 Composition of high resistance meter A high resistance meter is generally composed of three parts. a) a DC voltage source; b) a high input impedance DC amplifier; c) Indicate the meter. See Appendix A for the basic structure and principles. 4.2 Calculation formula for measuring resistance with high resistance meter.

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