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GB/T 29318-2012 English PDF (GBT29318-2012)

GB/T 29318-2012 English PDF (GBT29318-2012)

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GB/T 29318-2012: Electric energy metering for electric vehicle off-board charger

This Standard specifies the configuration installation requirements, technical requirements, test methods and inspection rules of the DC electric energy metering device for the electric vehicle off-board charger, as well as the charger metering technical requirements.
GB/T 29318-2012
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 43.040.99
T 35
GB/T 29318?€?2012
Electric energy metering for
electric vehicle off-board charger
ISSUED ON. DECEMBER 31, 2012
IMPLEMENTED ON. JUNE 01, 2013
Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 Configuration requirements and installation location ... 6
5 Technical requirements ... 7
6 Test methods ... 12
7 Inspection rules ... 18
Foreword
This Standard is drafted according to the rules stated in GB/T 1.1-2009. This Standard is the basic standard for electric vehicle charging metering, and shall be used in combination with corresponding standards selected in accordance with characteristics of electric energy metering device used for charging facilities. This Standard was proposed by and shall be under the jurisdiction of China Electricity Council.
Drafting organizations of this Standard. State Grid Corporation of China, China Electric Power Research Institute, China Institute of Metrology, State Grid Electric Power Research Institute, , Yunnan Electric Power Research Institute, XJ Group Corporation, North China Grid Company Limited AND Liaoning Electric Power Supply Co., Ltd. Main drafters of this Standard. Su Shengxin, Du Shuwei, Jia Junguo, Peng Chuning, Zhang Xin, Zeng Haiou, Jiang Honglang, Gao Bo, Chen Cheng, Liu Wensong, Wang Lei, He Qing, Zhang Xiuzeng, Cao Min, Wang Xin, Huo Junchao, Dong Xinsheng, Wang Sitong, Zhou Lixia, Ma Xiaoqi and Hao Xin.
Electric energy metering for
electric vehicle off-board charger
1 Scope
This Standard specifies the configuration installation requirements, technical requirements, test methods and inspection rules of the DC electric energy metering device for the electric vehicle off-board charger (hereafter referred to as the charger), as well as the charger metering technical requirements.
This Standard applies to the electric energy metering of charger.
2 Normative references
The articles contained in the following documents have become part of this Standard when they are quoted herein. For the dated documents so quoted, only the dated versions apply to this document. For the undated documents, all the modifications (including all corrections) or revisions made thereafter shall be applicable to this Standard. GB/T 2423.1-2008 Environmental testing - Part 2. Test methods - Tests A. Cold (IEC 60068-2-1.2007, IDT)
GB/T 2423.2-2008 Environmental testing - Part 2. Test methods - Tests B. Dry heat (IEC 60068-2-2.2007, IDT)
GB/T 2423.4-2008 Environmental testing for electric and electronic products - Part 2. Test method - Test Db. Damp heat, cyclic ( 12h+12h cycle) (IEC 60068-2-30.2005, IDT) GB/T 2423.57-2008 Environmental testing for electric and electronic products - Part 2. Tests - Test Ei. Shock - Shock response spectrum synthesis (IEC 60068-2-81.2003, IDT)
GB/T 2423.58-2008 Environmental testing for electric and electronic products - Part 2. Tests - Test Fi. Vibration - Mixed Mode (IEC 60068-2-80.2005, IDT)
GB/T 3928-2008 D.C. resistive volt ratio boxes (IEC 60524.1997, IDT)
GB 4208-2008 Degrees of protection provided by enclosure(IP code)
GB/T 5169.11-2006 Fire hazard testing for electric and electronic products - Part 11. Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products (IEC 60695-2-11.2000, IDT)
GB/T 15284-2002 Particular requirements for multi-rate electricity meters GB/T 17215.211 Electricity metering equipment (a.c.) - General requirements, tests and test conditions - Part 11. Metering equipment (GB/T 17215.211-2006, IEC 62052-11.2003, IDT)
GB/T 17215.421-2008 Electricity metering equipment (a.c.) - Tariff and load control - Part 21. Particular requirements for time switches (IEC 62054-21.2004, IDT) GB/T 17626.2-2006 Electromagnetic compatibility (EMC) - Testing and measurement techniques - Electrostatic discharge immunity test (IEC 61000-4-2.2001, IDT) GB/T 17626.3-2006 Electromagnetic compatibility - Testing and measurement techniques - Radiated radio-frequency electromagnetic field immunity test (IEC 61000-4-3.2002, IDT)
GB/T 17626.4-2008 Electromagnetic compatibility - Testing and measurement techniques - Electrical fast transient/burst immunity test (IEC 61000-4-4.2004, IDT) GB/T 17626.5-2008 Electromagnetic compatibility - Testing and measurement techniques - Surge immunity test (IEC 61000-4-5.2005, IDT)
GB/T 29317 Terminology of electric vehicle charging/battery swap infrastructure JJG 842-1993 Verification Regulation of D.C. Kilowatt-hour Meter
JB/T 9288-1999 External shunts
NB/T 33001 Specification for electric vehicle A.C. charging spot
3 Terms and definitions
Those defined in GB/T 29317 AND the following terms and definitions apply to this Standard.
3.1
Direct connected meter
It refers to the electric energy meter of which the current circuit of connected instrument is current signal, including the instrument with integrated design of electric energy meter and shunt.
3.2
Shunts connected meter
It refers to the electric energy meter of which current circuit of connected instrument is All circuit of electric energy meter to the ground shall be able to withstand AC voltage test with 4kV power frequency for 1min. AC voltage test with 2kV power frequency for 1min shall be able to be withstood among the disconnected circuit of electric energy meter. There shall have no flashover, spark discharge or breakdown in the test. 5.1.5.3 Insulation resistance
Insulation resistance of all circuit of electric energy meter to ground shall not be less than 40M??.
5.1.6 Output interface
5.1.6.1 Electrical energy test pulse outputs
Electric energy meter shall have electric pulse and optical pulse test access port proportional to its electrical energy. Electric pulse shall be output after optoelectronic isolation; pulse width is. 80ms??20ms. Use super bright and long-life LED as power pulses indication for optical pulse; mean time between failures (MTBF) of LED shall be greater than or equal to 100, 000h under normal operating conditions. Outputs of electrical energy test pulse shall be able to be hit from the right side
5.1.6.2 Clock signal outputs
Used to test the accuracy of electric energy meter timing; the output frequency is 1Hz. 5.1.7 Functional requirements
5.1.7.1 Electric energy metering
The electric energy meter can measure the total electrical energy and various rates electrical energy.
5.1.7.2 Storage function
Storage function shall meet the following requirements.
a) The electric energy meter shall at least store the total power energy and all rates of electricity data of the first two months or the first two settlement cycle; the default value of data archived separation time shall be at 24.00 of the last day of each month, or at any time of 1st -28th of each month.
b) After power supply of electric energy meter failure, the stored data shall be kept for at least 1 year;
c) Electric energy and other key charging information shall be stored in built-in security module of electric energy meter to prevent key data from being tampered. 5.1.7.3 Clock, time frame and rate
Clock, time frame and rate shall meet the following requirements.
a) The built-in hardware clock circuit with temperature compensation function has the automatic switching function among calendar, timing and leap year. Under the reference temperature, the clock accuracy is ??? ?? 0.5s/d. The variation of the accuracy of the clock with temperature shall be less than 0.15s/??C per 24h. The clock can be timed under the programming state, and perform broadcast timing under the non-programming state; the clock error of the broadcast timing shall not be more than 5min; and it can be timed only once a day.
b) Electric energy meter shall have at least two sets of rate time frame; the automatic switching of the two sets of rate time frame can be achieved via pre-setting the time. Each rate time frame can at least set 2 time zones in the whole year; it can at least set 8 time frames within 24h; the minimum time interval of time frame is 15min; and the time frame can be set crossing the zero point.
5.1.7.4 Measurement and monitoring
It can measure voltage, current, power, power factor and other operating parameters. Measurement error (fiducial error) does not exceed ?? 1%.
5.1.7.5 Communication function
Communication function shall meet the following requirements.
a) Electric energy meter shall have RS 485 communication interfaces to conduct information exchange with billing equipment or system, and modulated infrared interfaces to communicate with the hand-held meter reading unit;
b) Initial velocity of RS485 communication interface is 2400bps, can be set to 1200bps, 4800bps, 9600bps by software; communication rate of modulated infrared interface is 1200bps.
5.1.7.6 Display function
Display function...

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