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JJG 1129-2016 English PDF

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JJG 1129-2016: Instrument for Measuring TouchingResistance of Railway Wheelsets
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JJG 1129-2016English299 Add to Cart 3 days [Need to translate] Instrument for Measuring TouchingResistance of Railway Wheelsets Valid JJG 1129-2016

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Basic data

Standard ID JJG 1129-2016 (JJG1129-2016)
Description (Translated English) Instrument for Measuring TouchingResistance of Railway Wheelsets
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A55
Word Count Estimation 13,183
Date of Issue 2016-11-25
Date of Implementation 2017-02-25
Older Standard (superseded by this standard) JJG 114-1989
Regulation (derived from) State Administration of Quality Supervision, Inspection and Quarantine Notice No.116 of 2016
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine

JJG 1129-2016: Instrument for Measuring TouchingResistance of Railway Wheelsets

---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.
Instrument for Measuring TouchingResistance of Railway Wheelsets National Metrological Verification Regulation of the People's Republic of China Railway wheel contact resistance tester 2016-11-25 release 2017-02-25 Implementation State Administration of Quality Supervision, Inspection and Quarantine issued Railway wheel contact resistance tester Verification procedures Railway Wheelsets Responsible unit. National Railway Special Measuring Instruments Metrology Technical Committee Railway Special Technical Subcommittee The main drafting unit. China Railway Research Institute of Standard Measurement Institute South Locomotive Qingdao Quartet Locomotive & Rolling Stock Co., Ltd Participated in the drafting unit. Chengdu Railway Bureau This procedure entrusts the National Railway Special Measuring Instruments Metrology Technical Committee The Railway Technical Subcommittee is responsible for the interpretation The main drafters of this procedure. Wei Haihong (Institute of Standard Measurement, China Academy of Railway Sciences) Cao Rong (South Locomotive Qingdao Quartet Locomotive & Rolling Stock Co., Ltd.) Zhou Menglin (Institute of Standard Measurement, China Railway Research Institute) Participate in the drafters. Pu Wei (Chengdu Railway Bureau)

table of Contents

Introduction (II) 1 Scope (1) 2 Overview (1) 3 Measurement performance requirements (1) 3.1 Measuring range (1) 3.2 Indication error (1) 3.3 Location effects (1) 4 General technical requirements (1) 4.1 appearance and power check (1) 4.2 Insulation resistance (1) 4.3 AC withstand voltage (1) 4.4 Resolution (2) 4.5 Alarm (2) 5 Measuring instruments (2) 5.1 Test conditions (2) 5.2 Test items (2) 5.3 Verification method (3) 6 processing of test results (5) 7 Verification cycle (5) Appendix A railway wheel contact resistance tester test record format (6) Appendix B Verification Certificate/Verification Result Notice Page Format (7)

Introduction

This procedure is based on TB/T 1718-2003 "Railway vehicle wheel assembly technical conditions", TB/T 1463-2015 "Wheel assembly assembly technical conditions" in the relevant requirements from the preparation. This order is the first release. Test procedure for contact resistance of railway wheel

1 Scope

This procedure applies to the railway wheel contact resistance detector (hereinafter referred to as the detector) of the first test, follow-up test And check in use.

2 Overview

Detector is a measure of railway locomotives, vehicle wheel contact resistance of the railway special measuring instruments. Detector by the constant current source, voltage measurement, indicating device and other components. According to the different instructions, can be divided into numbers Type detector and analog detectors.

3 Measurement performance requirements

3.1 Measuring range The measuring range of the detector should cover (0 ~ 15) mΩ, the upper limit should not exceed 20mΩ. 3.2 indication error The indication error of the detector shall not exceed the technical requirements specified in Table 1. Table 1 The technical requirements of the detector mΩ Measurement point R where the technical requirements R < 9.5 ± 0.25 9.5? R? 105 to 0.5 10.5 R≤15 ±0.25 R > 15 ± 0.5 3.3 Location effects The difference between the indication value at the horizontal working position of the analogue detector and the indication value at the time of inclination (not less than 10 °) The value should not be greater than 0.25mΩ.

4 General technical requirements

4.1 appearance and power check The detector shall contain a nameplate, which shall include at least the product name, specification model, manufacturer name, factory number, Date of production. The parts should be assembled firmly, there should be no cracks, loosening and affect the measurement performance and the possible damage to the instrument trap. After the detector is energized, the display or indication is clear, complete and functional. 4.2 Insulation resistance Between the power input of the detector and the shell, the insulation resistance measured when applying 500V DC voltage should not be lower than 20MΩ. 4.3 AC withstand voltage

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