JJF 1711-2018 English PDF

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JJF 1711-2018: Calibration Specification for Sulfur Hexafluoride Decomposition Products Detectors
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1711-2018	399	Add to Cart	4 days	Calibration Specification for Sulfur Hexafluoride Decomposition Products Detectors	Valid

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Basic data

Standard ID: JJF 1711-2018 (JJF1711-2018)
Description (Translated English): Calibration Specification for Sulfur Hexafluoride Decomposition Products Detectors
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A61
Classification of International Standard: 17.020
Word Count Estimation: 17,122
Date of Issue: 2018-06-25
Date of Implementation: 2018-09-25
Regulation (derived from): State Administration of Markets, Announcement No. 13 of 2018
Issuing agency(ies): State Administration for Market Regulation
Summary: This standard is applicable to the measurement of the SF6 decomposition product detector for the electrochemical principle of sulfur dioxide (SO2), hydrogen sulfide (H2S) and carbon monoxide (CO) in the decomposition of sulfur hexafluoride (SF6). Other detection principles of SF6 decomposition products The detector can be calibrated with reference to this standard.

JJF 1711-2018: Calibration Specification for Sulfur Hexafluoride Decomposition Products Detectors

---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.
Calibration Specification for Sulfur Hexafluoride Decomposition Products Detectors National Metrology Technical Specification of the People's Republic Calibration specification for sulphur hexafluoride decomposition detector Published on.2018-06-25 2018-09-25 implementation State Administration of Markets issued Calibration specification for sulphur hexafluoride decomposition detector Focal Point. National Environmental Chemometrics Technical Committee Main drafting unit. China Electric Power Research Institute Participated in the drafting unit. State Grid Anhui Electric Power Company Electric Power Research Institute State Grid Shaanxi Electric Power Company Electric Power Research Institute Heilongjiang Electric Power Research Institute This Code entrusts the National Environmental Chemometrics Technical Committee to explain The main drafters of this specification. Ji Yansong (China Electric Power Research Institute) Yan Yonghua Participate in the drafters. Yan Xianglian (China Electric Power Research Institute) Wang Chengyu (China Electric Power Research Institute) Su Zhenxi (State Grid Anhui Electric Power Company Electric Power Research Institute) Yang Ren (State Grid Shaanxi Electric Power Company Electric Power Research Institute) Lu Gang (Heilongjiang Electric Power Research Institute)

table of Contents

Introduction (II) 1 Scope (1) 2 Overview (1) 3 Measurement characteristics (1) 3.1 indication error (1) 3.2 Repeatability (2) 4 Calibration conditions (2) 4.1 Environmental conditions (2) 4.2 Measuring Instruments and Related Equipment for Calibration (2) 5 Calibration items and calibration methods (3) 5.1 Concentration indication error (3) 5.2 Repeatability (3) 6 Calibration result expression (4) 7 re-study interval (4) Appendix A Calibration record of hexafluoride decomposition product detector (5) Appendix B Certificate page format (7) Appendix C Uncertainty Evaluation of Concentration Indication Error Calibration Results (8)

Introduction

This specification is based on JJF 1071-2010 "Rules for the preparation of national metrological calibration specifications", JJF 1001-2011 "Measurement Terms and Definitions" and JJF 1059.1-2012 "Measurement Uncertainty Evaluation and Representation" requirements Formulated. This specification is the first release. Calibration specification for sulphur hexafluoride decomposition detector

1 Scope

This specification is applicable to the measurement of sulfur dioxide (SO2), hydrogen sulfide (H2S) in sulfur hexafluoride (SF6) decomposition. Electrochemical principle of carbon monoxide (CO) component Calibration of SF6 decomposition product detector, SF6 of other detection principles The solution detector can be calibrated with reference to this specification.

2 Overview

SF6 Decomposition Analyzer (hereinafter referred to as the instrument) is mainly used to detect SF6 in SF6 gas insulated electrical equipment. The gas decomposes to determine the operating state of the equipment. According to the different uses of the instrument, it is divided into Class A instruments and Class B instruments. Class A instruments are mainly used for equipment latency Fault detection and diagnosis, Class B instruments are mainly used for positioning after equipment failure. The instrument consists mainly of electrochemical sensors, electronic components and display sections. By the sensor in the SF6 gas The SO2, H2S, and CO gas concentrations are converted into electrical signals, which are then processed by electronic components and displayed as concentration values. Come. The structure of the instrument is shown in Figure 1. Figure 1 Schematic diagram of the instrument structure

3 Measurement characteristics

3.1 indication error The indication error of the instrument should meet the requirements of Table 1. Table 1 Instrument indication error Instrument category gas type measurement range μmol/mol indication error Class A SO2 0~10 ±1μmol/mol 10~100 ±10% H2S 0~10 ±1μmol/mol 10~100 ±10% CO 0~50 ±5μmol/mol 50~500 ±10% ......

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