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JJG 1149-2022: Off-board Chargers for Electric Vehicles(for Trial Implementation) Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid JJG 1149: Historical versions
JJG 1149-2022: Off-board Chargers for Electric Vehicles(for Trial Implementation)---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/JJG1149-2022JJF NATIONAL METROLOGICAL VERIFICATION REGULATIONS Off-board Chargers for Electric Vehicles (for Trial Implementation) Issued on. JUNE 28, 2022 Implemented on. DECEMBER 28, 2022 Issued by. State Administration for Market Regulation Administrative organization. National Electromagnetic Metrology Technical Committee Main drafting organizations. China Institute of Metrology Shenzhen Institute of Metrology and Quality Inspection Participating drafting organizations. Hangzhou Institute of Quality and Technical Supervision and Inspection This Regulation is entrusted to National Electromagnetic Metrology Technical Committee to be responsible for interpretation Verification Regulation of Off-board Chargers for Electric Vehicles (for Trial Implementation) Replacing JJG 1149-2018 Main drafters of this Regulation. Liu Yue (China Institute of Metrology) Zhou Di (Shenzhen Institute of Metrology and Quality Inspection) Zhang Xiuzeng (China Institute of Metrology) Participating drafters. Huang Hongtao (China Institute of Metrology) Zhan Binghua (Shenzhen Institute of Metrology and Quality Inspection) Tong Jun (Hangzhou Institute of Quality and Technical Supervision and Inspection) Wu Guojian (Hangzhou Institute of Quality and Technical Supervision and Inspection) Table of ContentsIntroduction... 5 1 Scope... 6 2 Normative references... 6 3 Terms... 6 4 Overview... 7 5 Metrology performance requirements... 8 5.1 Operate error... 8 5.2 Clock time error... 9 6 General technical requirements... 9 6.1 Identification... 9 6.2 Testing interface... 10 6.3 Constant... 10 6.4 Minimum power variable... 10 6.5 Display of charging energy... 10 7 Measuring instrument control... 10 7.1 First verification, follow-up verification and in-use inspection... 10 7.2 Verification conditions... 10 7.3 Verification items and verification methods... 11 7.4 Processing of verification results... 16 7.5 Verification period... 17 Annex A Format for original record of verification... 18 Annex B Format for inner page of verification certificate/ verification result notification (Page 2)... 21 Annex C Format for inner page of verification certificate/ verification result notification (Page 3)... 221 ScopeThis Regulation applies to the first verification, follow-up verification and in-use inspection for off-board chargers for electric vehicles. The verification of off-board chargers for electric vehicles based on statistical sampling methods can be carried out in accordance with this Regulation.2 Normative referencesThis Regulation refers to the following documents. JJG 842-2017, Electronic Meters for Measuring Direct-current Electrical Energy JJF 1139, Principle and method for determination verification period of measuring instruments NB/T 33001-2018, Specification for electric vehicle off-board conductive charger For the dated documents, only the versions with the dates indicated are applicable to this Regulation; for the undated documents, only the latest version (including all the amendments) is applicable to this Regulation.3 TermsThe following terms and definitions apply to this document. 3.1 off-board charger A special device that is fixedly connected to an AC or DC power source, converts its electrical energy into DC electrical energy, charges the power battery of an electric vehicle by means of conduction, and has the functions of measuring, storing, and providing results to users. 3.2 connection point A connection point that the off-board charger is connected to the electric vehicle. 3.3 real load test method A method of verification using the actual operating load. 3.4 virtual load test method A method that uses the virtual load provided by the charger verification device to verify.4 OverviewAn off-board chargers for electric vehicles (hereinafter referred to as charger) is a metrology device that provides DC power for electric vehicles. It is mainly composed of rectification and chopper control unit, display interface or data transmission interface, metrology module, connection device for conductive charging and other parts. The schematic diagram of the charger is shown in Figure 1.5 Metrology performance requirements5.1 Operate error The operate error of the charger is expressed by relative error. Under the verification conditions specified in 7.2.1, the operate error of the charger shall meet the requirements in Table 1.See Table 2 for the value of the average temperature coefficient of the electric energy measurement of the charger. 5.2 Clock time error For the charger with time-sharing charging function, the error of the clock time of the charger shall not exceed 5s at the first verification. In the follow-up verification, it shall not exceed 3min.6 General technical requirements6.1 Identification The nameplate shall have the following identificati6.2 Testing interface The technical indicators of the test output and communication interface of the charger used for verification shall meet the requirements of relevant standards. 6.3 Constant The charger shall have a pulse output corresponding to the measured DC energy. It shall be consistent with the constant marked on the nameplate. 6.4 Minimum power variable The minimum electric energy variable shall be 0.001kW·h.7 Measuring instrument control7.1 First verification, follow-up verification and in-use inspection The first verification is for a charger that has not been verified. The follow-up verification is any verification after the first verification. 7.2 Verification conditions 7.2.1 Ambient conditions for verification When verifying the charger, the following conditions shall be met. 7.4 Processing of verification results 7.4.1 Processing of verification results 7.4.2 Rounding off method for measurement data 7.4.2.1 Rounding off method when the rounding off interval is 1.The right side of the reserved digit is for the reserved digit 1.If it is greater than 0.5, add 1 to the reserved digit. If it is less than 0.5, the reserved digit remains unchanged. If it is equal to 0.5, the reserved digit remains unchanged when it is an even number. Add 1 when the reserved digit is odd. 7.4.3 If all items meet the requirements, it is judged as qualified, otherwise it is judged as unqualified. Chargers that pass the verification will be issued with a verification certificate (see Annexes B and C for the format of the verification certificate) and a verification-pass mark. 7.4.4 A verification-pass charger must be sealed at the position of the electric energy meter or metrology module used inside it. Splitters that are used separately also need to be sealed. JJF 1149-2022 JJF NATIONAL METROLOGICAL VERIFICATION REGULATIONS Off-board Chargers for Electric Vehicles (for Trial Implementation) Issued on. JUNE 28, 2022 Implemented on. DECEMBER 28, 2022 Issued by. State Administration for Market Regulation Administrative organization. National Electromagnetic Metrology Technical Committee Main drafting organizations. China Institute of Metrology Shenzhen Institute of Metrology and Quality Inspection Participating drafting organizations. Hangzhou Institute of Quality and Technical Supervision and Inspection This Regulation is entrusted to National Electromagnetic Metrology Technical Committee to be responsible for interpretation Verification Regulation of Off-board Chargers for Electric Vehicles (for Trial Implementation) Replacing JJG 1149-2018 Main drafters of this Regulation. Liu Yue (China Institute of Metrology) Zhou Di (Shenzhen Institute of Metrology and Quality Inspection) Zhang Xiuzeng (China Institute of Metrology) Participating drafters. Huang Hongtao (China Institute of Metrology) Zhan Binghua (Shenzhen Institute of Metrology and Quality Inspection) Tong Jun (Hangzhou Institute of Quality and Technical Supervision and Inspection) Wu Guojian (Hangzhou Institute of Quality and Technical Supervision and Inspection)Table of ContentsIntroduction... 5 1 Scope... 6 2 Normative references... 6 3 Terms... 6 4 Overview... 7 5 Metrology performance requirements... 8 5.1 Operate error... 8 5.2 Clock time error... 9 6 General technical requirements... 9 6.1 Identification... 9 6.2 Testing interface... 10 6.3 Constant... 10 6.4 Minimum power variable... 10 6.5 Display of charging energy... 10 7 Measuring instrument control... 10 7.1 First verification, follow-up verification and in-use inspection... 10 7.2 Verification conditions... 10 7.3 Verification items and verification methods... 11 7.4 Processing of verification results... 16 7.5 Verification period... 17 Annex A Format for original record of verification... 18 Annex B Format for inner page of verification certificate/ verification result notification (Page 2)... 21 Annex C Format for inner page of verification certificate/ verification result notification (Page 3)... 221 ScopeThis Regulation applies to the first verification, follow-up verification and in-use inspection for off-board chargers for electric vehicles. The verification of off-board chargers for electric vehicles based on statistical sampling methods can be carried out in accordance with this Regulation.2 Normative referencesThis Regulation refers to the following documents. JJG 842-2017, Electronic Meters for Measuring Direct-current Electrical Energy JJF 1139, Principle and method for determination verification period of measuring instruments NB/T 33001-2018, Specification for electric vehicle off-board conductive charger For the dated documents, only the versions with the dates indicated are applicable to this Regulation; for the undated documents, only the latest version (including all the amendments) is applicable to this Regulation.3 TermsThe following terms and definitions apply to this document. 3.1 off-board charger A special device that is fixedly connected to an AC or DC power source, converts its electrical energy into DC electrical energy, charges the power battery of an electric vehicle by means of conduction, and has the functions of measuring, storing, and providing results to users. 3.2 connection point A connection point that the off-board charger is connected to the electric vehicle. 3.3 real load test method A method of verification using the actual operating load. 3.4 virtual load test method A method that uses the virtual load provided by the charger verification device to verify.4 OverviewAn off-board chargers for electric vehicles (hereinafter referred to as charger) is a metrology device that provides DC power for electric vehicles. It is mainly composed of rectification and chopper control unit, display interface or data transmission interface, metrology module, connection device for conductive charging and other parts. The schematic diagram of the charger is shown in Figure 1.5 Metrology performance requirements5.1 Operate error The operate error of the charger is expressed by relative error. Under the verification conditions specified in 7.2.1, the operate error of the charger shall meet the requirements in Table 1.See Table 2 for the value of the average temperature coefficient of the electric energy measurement of the charger. 5.2 Clock time error For the charger with time-sharing charging function, the error of the clock time of the charger shall not exceed 5s at the first verification. In the follow-up verification, it shall not exceed 3min.6 General technical requirements6.1 Identification The nameplate shall have the following identificati6.2 Testing interface The technical indicators of the test output and communication interface of the charger used for verification shall meet the requirements of relevant standards. 6.3 Constant The charger shall have a pulse output corresponding to the measured DC energy. It shall be consistent with the constant marked on the nameplate. 6.4 Minimum power variable The minimum electric energy variable shall be 0.001kW·h.7 Measuring instrument control7.1 First verification, follow-up verification and in-use inspection The first verification is for a charger that has not been verified. The follow-up verification is any verification after the first verification. 7.2 Verification conditions 7.2.1 Ambient conditions for verification When verifying the charger, the following conditions shall be met. 7.4 Processing of verification results 7.4.1 Processing of verification results 7.4.2 Rounding off method for measurement data 7.4.2.1 Rounding off method when the rounding off interval is 1.The right side of the reserved digit is for the reserved digit 1.If it is greater than 0.5, add 1 to the reserved digit. If it is less than 0.5, the reserved digit remains unchanged. If it is equal to 0.5, the reserved digit remains unchanged when it is an even number. Add 1 when the reserved digit is odd. 7.4.3 If all items meet the requirements, it is judged as qualified, otherwise it is judged as unqualified. Chargers that pass the verification will be issued with a verification certificate (see Annexes B and C for the format of the verification certificate) and a verification-pass mark. 7.4.4 A verification-pass charger must be sealed at the position of the electric energy meter or metrology module used inside it. Splitters that are used separately also need to be sealed. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of JJG 1149-2022 be delivered?Answer: The full copy PDF of English version of JJG 1149-2022 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of JJG 1149-2022_English with my colleagues?Answer: Yes. 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