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JJF 1790-2019 English PDF

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JJF 1790-2019: Program of Pattern Evaluation of Insulation Resistance Meters
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Basic data

Standard ID JJF 1790-2019 (JJF1790-2019)
Description (Translated English) Program of Pattern Evaluation of Insulation Resistance Meters
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A55
Classification of International Standard 17.220
Word Count Estimation 54,586
Date of Issue 2019
Date of Implementation 2020-03-31
Issuing agency(ies) State Administration for Market Regulation

JJF 1790-2019: Program of Pattern Evaluation of 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.
(Outline of Type Evaluation of Insulation Resistance Meter) National Measurement Technical Specification of the People's Republic of China Outline of Type Evaluation of Insulation Resistance Meter Published on December 31,.2019 2020-03-31 Implementation Issued by the State Administration of Market Supervision and Administration Outline of Type Evaluation of Insulation Resistance Meter Centralized unit. National Electromagnetic Measurement Technical Committee Main drafting unit. Beijing Institute of Metrology and Testing Science Shandong Metrology and Testing Center Liaoning Institute of Metrology Participated in the drafting unit. Shanghai Institute of Metrology and Testing Technology Shandong Institute of Metrology Dalian Metrology Inspection and Testing Institute Co., Ltd. This specification entrusts the National Electromagnetic Measurement Technical Committee to interpret The main drafters of this specification. Zhang Lei (Beijing Institute of Metrology and Testing Science) Wang Wenjing (Beijing Institute of Metrology and Testing Science) Xinxin Wang (Shandong Metrology and Testing Center) Ji Yunpeng (Liaoning Institute of Metrology) Participating drafters. Zhou Liren (Shanghai Institute of Metrology and Testing Technology) Xuefeng Ma (Shandong Institute of Metrology) Zhao Xiaojun (Dalian Metrology Inspection and Testing Institute Co., Ltd.)

table of Contents

Introduction (Ⅲ) 1 Scope (1) 2 References (1) 3 Terms and definitions (2) 3.1 Single product (2) 3.2 Series products (2) 3.3 Insulation resistance (2) 3.4 Measuring button (2) 3.5 Terminal voltage (2) 3.6 Rated voltage (2) 4 Overview (2) 4.1 Insulation resistance meter (Megohmmeter) (2) 4.2 Electronic Insulation Resistance Meter (3) 5 Legal management requirements (4) 5.1 Unit of measurement (4) 5.2 External structure (4) 5.3 Marks and logos (4) 6 Measurement requirements (5) 6.1 Accuracy class and maximum allowable error (5) 6.2 Maximum allowable error of resistance indication (6) 6.3 Location influence (6) 6.4 Terminal voltage (6) 6.5 Resolution (7) 7 General technical requirements (7) 7.1 Working conditions (7) 7.2 Appearance and structure (7) 7.3 Insulation resistance (8) 7.4 Dielectric strength (8) 7.5 Ferromagnetic bracket, conductive bracket (8) 7.6 Effect of external magnetic field (8) 7.7 Power supply impact (9) 7.8 Influence of shielding devices (9) 7.9 No resonance (9) 7.10 Self-heating (9) 7.11 Overload (9) 7.12 Electromagnetic compatibility (9) 7.13 Impact (10) 7.14 Vibration (11) 7.15 Temperature (12) 7.16 Humidity (12) 8 Type Evaluation Project Table (13) 9 Provide the number of prototypes and how to use them (14) 9.1 Number of prototypes provided (14) 9.2 How to use the prototype (14) 10 Test conditions and methods of test items, data processing and qualification criteria (14) 10.1 Test conditions of the project (14) 10.2 Appearance and structure(15) 10.3 Insulation resistance (15) 10.4 Dielectric strength (15) 10.5 Indication error of resistance measurement (15) 10.6 Position influence test (16) 10.7 Terminal button voltage (17) 10.8 Resolution (18) 10.9 Ferromagnetic bracket, conductive bracket (18) 10.10 Effect of external magnetic field(18) 10.11 Influence of power supply (19) 10.12 Influence of shielding devices (19) 10.13 No resonance (19) 10.14 Self-heating (20) 10.15 Overload (20) 10.16 Electromagnetic compatibility (20) 10.17 Impact (20) 10.18 Vibration (21) 10.19 Temperature (21) 10.20 Humidity (22) 11 Table of measuring instruments and equipment used in the test items (23) Appendix A Type Evaluation Record Format (25) Appendix B Type Evaluation Report Format (42) Appendix C Format of "Description" for Type Evaluation Preservation Prototype (47)

Introduction

This outline is based on JJF 1016-2014 "Guidelines for the Compilation of Outlines for Measuring Apparatus Type Evaluation", JJF 1015-2014 Compilation of the "General Specification for Type Evaluation of Measuring Instruments". This outline is published for the first time. Outline of Type Evaluation of Insulation Resistance Meter

1 Scope

This outline is applicable to the insulation resistance meter (Megohmmeter) and insulation resistance meter in the classification resistance code 15120500. Type evaluation of electronic insulation resistance meter.

2 Reference documents

The outline cited the following documents. JJG622 Insulation Resistance Meter (Megohmmeter) JJG1005 Electronic Insulation Resistance Meter GB/T 191 Graphic mark for packaging, storage and transportation GB/T 2423.1 Environmental testing for electrical and electronic products Part 2.Test methods Test A. Low temperature GB/T 2423.2 Environmental Test for Electrical and Electronic Products Part 2.Test Method Test B. High Temperature GB/T 2423.3 Environmental Test Part 2.Test Method Test Cab. Constant Damp Heat Test GB/T 2423.5 Environmental Test Part 2.Test Method Test Ea and Guidelines. Impact GB/T 2423.10 Environmental Test Part 2.Test Method Test Fc. Vibration (Sinusoidal) GB/T 4798.3 Environmental conditions for the application of electrical and electronic products. Part 3.Fixed use in places with climate protection GB/T 4798.7 Environmental conditions for the application of electrical and electronic products. Part 7.Portable and non-stationary use GB 4824 Industrial, Scientific and Medical (ISM) Radio Frequency Equipment Disturbance Characteristics Limits and Measurement Methods GB/T 6113.101 Specification for radio disturbance and immunity measuring equipment and methods Part 1-1.None Line electrical disturbance and immunity measuring equipment GB/T 6587 General Specification for Electronic Measuring Instruments GB/T 7676.1-2017 Direct acting analog indicating electrical measuring instruments and their accessories Part 1.Definitions and common enquiries GB/T 17626.2 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test GB/T 17626.3 Electromagnetic compatibility test and measurement technology RF electromagnetic field radiation immunity test GB/T 17626.4 Electromagnetic compatibility test and measurement technology Electrical fast transient pulse group immunity test GB/T 17626.5 EMC test and measurement technology surge (shock) immunity test GB/T 17626.6 Electromagnetic compatibility test and measurement technology RF field induced conducted disturbance immunity GB/T 17626.8 EMC test and measurement technology power frequency magnetic field immunity test GB/T 17626.11 Electromagnetic compatibility test and measurement technology for voltage sags, short interruptions and voltage changes Immunity test GB/T 18268.1 Electromagnetic compatibility requirements for electrical equipment for measurement, control and laboratory use. Part 1. common enquiries GB/T 18268.22 Requirements for electromagnetic compatibility of electrical equipment for measurement, control and laboratory use Part 22. Particular requirements for test configuration, working conditions and performance of portable test, measurement and monitoring equipment for low-voltage distribution systems

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