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JJF 1245.4-2019 English PDF

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JJF 1245.4-2019: Program of Pattern Evaluation of Fixed AC Electricity Meters - Special Requirements and Safety Requirements
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JJF 1245.4: Evolution and historical versions

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JJF 1245.4-2019English719 Add to Cart 5 days [Need to translate] Program of Pattern Evaluation of Fixed AC Electricity Meters - Special Requirements and Safety Requirements Valid JJF 1245.4-2019
JJF 1245.4-2010English959 Add to Cart 5 days [Need to translate] Program of pattern evaluation of electricity meters. Particular requirements. Electromechanical meters for reactive energy(Classes 2 and 3) Obsolete JJF 1245.4-2010

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Basic data

Standard ID JJF 1245.4-2019 (JJF1245.4-2019)
Description (Translated English) Program of Pattern Evaluation of Fixed AC Electricity Meters - Special Requirements and Safety Requirements
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A55
Classification of International Standard 17.220
Word Count Estimation 33,372
Date of Issue 2019
Date of Implementation 2020-03-31
Issuing agency(ies) State Administration for Market Regulation

JJF 1245.4-2019: Program of Pattern Evaluation of Fixed AC Electricity Meters - Special Requirements and Safety Requirements


---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 Installed AC Energy Meters-Special Requirements and Safety Requirements) National Measurement Technical Specification of the People's Republic of China Outline of Type Evaluation of Installed AC Energy Meter Special requirements and safety requirements Published on December 31,.2019 2020-03-31 Implementation Issued by the State Administration of Market Supervision and Administration Outline of Type Evaluation of Installed AC Energy Meter Special requirements and safety requirements Partial replacement JJF 1245.1~6-2010 Centralized unit. National Electromagnetic Measurement Technical Committee Main drafting unit. Jiangsu Academy of Metrology Zhejiang Academy of Metrology Participated in the drafting unit. State Grid Zhejiang Electric Power Company Electric Power Research Institute This specification entrusts the National Electromagnetic Measurement Technical Committee to interpret The main drafters of this specification. Deng Lingxiang (Jiangsu Institute of Metrology) Li Bo (Jiangsu Institute of Metrology) Jiang Yang (Zhejiang Institute of Metrology) Participating drafters. Shao Yuda (Jiangsu Institute of Metrology) Li Baoting (Jiangsu Institute of Metrology) Yao Li (State Grid Zhejiang Electric Power Research Institute of Electric Power) Zhu Zhongwen (Zhejiang Institute of Metrology)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2 References (1) 3 Terminology (2) 4 Overview (3) 5 Legal management requirements (3) 6 Metrology and technical requirements (4) 6.1 Rated working conditions (4) 6.2 Accuracy requirements (4) 6.3 Permitted influence (5) 6.4 Permissible interference (6) 6.5 Power consumption (6) 6.6 Radio interference suppression (7) 6.7 Safety requirements (7) 7 Type evaluation item list (11) 8 Technical data and test prototypes to be submitted by the applicant (11) 9 Test methods and conditions of type evaluation items (11) 9.1 General test conditions (11) 9.2 Accuracy requirements (12) 9.3 Permitted influence (13) 9.4 Permissible interference (15) 9.5 Power consumption (16) 9.6 Radio interference suppression test (18) 9.7 Safety requirements (19) 10 Type evaluation record format (25) Appendix A List of Test Items (26)

Introduction

"Type Evaluation Outline of Installed AC Watt-hour Meter" refers to international recommendations OIMLR46-1/-2.2012 and GB/T 17215 series of national standards, and in accordance with JJF 1016-2014 "Outline of Type Appraisal Outline of Measuring Instruments" Prepared by the requirements of "Guide to Writing." Contains the following 5 parts. ---JJF 1245.1-2019 "Type Evaluation Outline of Installed AC Energy Meter Active Energy Meter"; ---JJF 1245.2-2019 "Software Requirements for Type Evaluation Outline of Installed AC Energy Meter"; ---JJF 1245.3-2019 "Reactive Reactive Energy Meter for Type Evaluation Outline of Installed AC Energy Meter"; ---JJF 1245.4-2019 "Special Requirements and Safety Requirements for Type Evaluation Outline of Installed AC Energy Meters"; ---JJF 1245.5-2019 "Functional Requirements for Type Evaluation Outline of Installed AC Energy Meter". When using the "Type Evaluation Outline of Installed AC Watt-hour Meter" for the type evaluation test of the AC Watt-hour meter, the According to the characteristics of the energy meter, select the corresponding part of the outline. This series outline replaces the original series outline JJF 1245.1~6-2010, compared with JJF 1245.1~6-2010, The main changes are as follows. ---Adopt a new frame structure. no longer use general requirements-special requirements structure. With international recommendations OIML R46-1/-2.2012 is the main part, adding relevant content of GB/T 17215 series of national standards. JJF 1245.1-2019 And JJF 1245.2-2019 basically covers the content of OIMLR46-1/-2.2012; JJF 1245.3-2019 According to the content of reactive energy meter measurement and technical requirements in the national standard, it is compiled according to the architecture of JJF 1245.1-2019 Write; JJF 1245.4-2019 according to JJF 1245.1-2019 and JJF 1245.3-2019 not covered but national standards Contains the content preparation of measurement and technical requirements and safety-related requirements; JJF 1245.5-2019 in JJF Revised on the basis of 1245.6-2010. --- Added software requirements. JJF 1245.2-2019 refers to international recommendations OIMLR46-1/-2.2012 The content of the quantitative performance protection chapter, combined with the technical characteristics and management requirements of my country's electric energy meter, proposes software requirements for the electric energy meter Seeking, and give the verification method. --- Added and revised measurement and technical requirements. increased durability, higher harmonics, differential mode current interference, electricity Rapid changes in current, ringing wave and other items, modified voltage and current harmonics, constant magnetic field, radio frequency electromagnetic field radiation, electricity Pressure drop and short-term interruption, vibration, sunlight radiation protection, waterproof and other test items. The previous releases of this series of outlines are. JJF 1245.1-2010 "General Requirements for Type Evaluation Outline of Installed Energy Meter" JJF 1245.2-2010 "Specification Requirements for Type Evaluation Outline of Installed Watt-hour Meter" Electromechanical Active Watt-hour Meter (Level 0.5, 1 and 2) JJF 1245.3-2010 "Specification Requirements for Type Evaluation Outline of Installed Watt-hour Meter" Static Active Watt-hour Meter (0.2S, 0.5S, level 1 and 2)》 JJF 1245.4-2010 "Specification Requirements for Type Evaluation Outline of Installed Watt-hour Meter" Electromechanical Reactive Watt-hour Meter (Levels 2 and 3) JJF 1245.5-2010 "Specification Requirements for Type Evaluation Outline of Installed Watt-hour Meter" Static Reactive Watt-hour Meter (Levels 2 and 3) JJF 1245.6-2010 "Special Requirements for Installed Energy Meter Type Evaluation Outline Functional Energy Meter" Special instructions for this specification. This specification is mainly compiled with reference to the contents of GB/T 17215.211 and IEC 62052-31. Outline of Type Evaluation of Installed AC Energy Meter Special requirements and safety requirements

1 Scope

This specification applies to single and three-phase installed active and reactive energy meters with a frequency of 50Hz or 60Hz (hereinafter referred to as Type evaluation of special requirements and safety requirements of instrument). This specification does not apply to instruments whose nominal voltage exceeds 600V (multiphase instruments are line-to-neutral voltage) Instrument connected to electronic transformer (GB/T 20840.8-2007), used to connect low-voltage current sensor (IEC 61869-10.2017) The data interface of instrument, portable instrument, standard electric energy meter and instrument register.

2 Reference documents

This specification refers to the following documents. JJF 1245.1-2019 installation type AC energy meter type evaluation outline active energy meter JJF 1245.3-2019 type-installed AC energy meter type evaluation outline reactive energy meter GB/T 5169.11-2017 Fire hazard testing for electrical and electronic products. Part 11.Glow wire/hot wire base Glow wire flammability test method for finished products of this test method (GWEPT) GB/T 16927.1-2011 High voltage test technology Part 1.General definition and test requirements GB/T 17215.211 General requirements, tests and test conditions for electrical measuring equipment (AC) Part 11. measuring equipment GB/T 17626.12-2013 Electromagnetic compatibility test and measurement technology Ring wave immunity test GB/T 17626.29-2006 electromagnetic compatibility test and measurement technology DC power input port voltage temporary Immunity test for voltage drop, short interruption and voltage change GB/T 20840.8-2007 Transformers Part 8.Electronic current transformers IEC 60068-2-75.2014 Environmental testing for electrical and electronic products. Part 2.Test methods Test Eh. Hammer test (Environmental testing-Part 2-75.Tests.TestEh.Hammertests) IEC 61000-4-8.2009 Electromagnetic Compatibility (EMC) Part 4-8.Test and Measurement Technology Power Frequency Electromagnetic interference test (Electromagneticcompatibility (EMC)-Part 4-8.Testingandmeas- urementtechniques-Powerfrequencymagneticfieldimmunitytest) IEC 61000-4-19.2014 Electromagnetic Compatibility (EMC) Part 4-19.Test and measurement technology Differential mode conducted interference test (Electromagnetic) of the signal frequency range of the streaming power port from 2kHz to 150kHz compatibility(EMC)-Part 4-19.Testingandmeasurementtechniques-Testforim- munitytoconducted,differentialmodedisturbancesandsignalinginthefrequencyrange 2kHzto150kHzata.c.powerports) IEC 61869-10.2017 Instrument transformers Part 10.Additional requirements for low-power passive current transformers (Instrumenttransformers-Part 10.Additionalrequirementsforlow-powerpassive currenttransformers)

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