NB/T 33001-2010 English PDF (NBT33001-2010)

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NB/T 33001-2010: Specification for electric vehicle off-board conductive charger
NB/T 33001-2010
ICS 29.200
K 81
NB
ENERGY INDUSTRY STANDARD
OF THE PEOPLE'S REPUBLIC OF CHINA
Specification for electric vehicle
off-board conductive charger
ISSUED ON. MAY 24, 2010
IMPLEMENTED ON. OCTOBER 01, 2010
Issued by. National Energy Administration
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Basic structure ... 6 
5 Functional requirements ... 6 
6 Technical requirements ... 7 
7 Inspection rules ... 15 
8 Test methods ... 16 
9 Marking ... 22 
Foreword
This standard was proposed by the China Electricity Council.
This standard shall be under the jurisdiction of the Energy Industry Electric
Vehicle Charging Facilities Standardization Technical Committee.
The drafting organizations of this standard. State Grid Corporation of China,
China Electric Power Research Institute, State Grid Electric Power Research
Institute, Guangdong Power Grid Corporation Electric Power Research
Institute, Shenzhen Power Supply Bureau, Xu Ji Power Co., Ltd., Shanghai
Electric Power Company, Zhejiang Electric Power Company.
The main drafters of this standard. Hu Jiangyi, Jia Junguo, Li Wufeng, Wu
Bin, Wu Shangjie, Zhu Jinda, Ni Feng, Zhang Hao, Wang Xiaomao, Huang
Zhiwei, Li Fei, Qiu Ye, Deng Weiguang, Yu Wenbin, Luo Zhijun, Dong
Xinsheng, He Weiguo, Du Chenggang, Chen Feng, Zhang Pengfei.
The recommendations and opinions of this standard are fed back to the
Standardization Center of China Electricity Council (No. 1, BaiGuang Road,
Beijing, 100761).
Specification for electric vehicle off-board
conductive charger
1 Scope
This standard specifies the basic structure, functional requirements, technical
requirements, test methods, inspection rules and identification of off-board
conductive chargers for electric vehicles (abbreviated as chargers).
This standard applies to the off-board charger used for the electric vehicles
which adopt conductive charging method.
2 Normative references
The following documents are essential to the application of this document.
For the dated documents, only the versions with the dates indicated are
applicable to this document; for the undated documents, only the latest
version (including all the amendments) are applicable to this Standard.
GB/T 2421.1-2008 Environmental testing for electric and electronic
products – General and guidance
GB/T 2423.1-2008 Environmental testing for electric and electronic
products – Part 2. Test methods – Test A. Cold
GB/T 2423.2-2008 Environmental testing for electric and electronic
products – Part 2. Test methods – Test A. Dry heat
GB/T 2423.4-2008 Basic environmental testing procedures for electric and
electronic products – Test Db. Damp heat, cycle
GB/T 2423.55-2008 Environmental testing for electric and electronic
products – Part 2. Test methods – Test Eh. hammer tests
GB/T 3859.1-2008 Semiconductor convertors – Specification of basic
requirement
GB 4208-2008 Degree of protection provided by enclosure (IP code)
GB/T 4797.5-1992 Environmental conditions appearing in nature of
electric and electronic products – Precipitation and wind
6.7.4 The charger shall have emergency shutdown switch, AND through
manual operation OR remote communication command, emergency stop
charging.
6.7.5 The charger shall, when being initiated for charging, be manually
confirmed for activation.
6.7.6 The charger shall have soft-start function, AND the soft-start time is 3 s
~ 8 s.
6.7.7 In the charging process, the charger shall ensure that the battery’s
charging voltage and charge current do not exceed the allowable value.
6.7.8 In the charging process, when the temperature of the battery exceeds
the allowable limit, the charger shall stop charging.
6.7.9 Only after the charger is correctly connected to the battery system of
the electric vehicle, it is allowed for the charger to start the charging process;
when the charger detects abnormal connection to the battery system of the
electric vehicle, it must cut off the DC output immediately.
6.7.10 The charger shall have an interlocking function to ensure that, before
being separated from the electric vehicle, the vehicle cannot be started.
6.7.11 In the charging process, the charger shall have obvious status
indication and text prompts, so as to prevent personnel from mis-operation.
6.8 Charging output requirements
6.8.1 Outputs voltage and current range
a) Output voltage. Based on the battery voltage range, the charger output
voltage is divided into three levels. 150 V ~ 350 V, 300 V ~ 500 V, 450 V
~ 700 V;
b) Output current. The charger DC output rated current shall adopt. 10 A,
20 A, 50 A, 100 A, 160 A, 200 A, 315 A, 400 A (500 A).
6.8.2 Constant current accuracy
When the AC power supply voltage changes within the range ± 15% of the
nominal value, the output DC voltage changes within the corresponding
regulating range as specified in 6.8.1 a) of this standard, the output DC
current shall, at any value within the range 20% ~ 100% of the rated value,
keep constant; AND the charger output current’s constant current accuracy
shall not exceed ± 1%.
When the output power is 50% ~ 100% of the rated power, the power factor
shall not be less than 0.9, AND the efficiency shall not be less than 90%.
6.10 Current imbalance
When multiple high frequency switching power supply modules of same
model work in parallel, the modules shall be able to share the load in
proportion; when the average output current of all modulus is 50% ~ 100% of
the rated current value, the current imbalance shall not exceed ± 5%.
6.11 Harmonic current
The harmonic current as generated by the charger shall not exceed the limits
as specified in 5.4.2.2 of GB/T 19826-2005.
6.12 Electromagnetic compatibility
6.12.1 Immunity requirements
6.12.1.1 Electrostatic discharge immunity
The charger shall be able to withstand the level 3 electrostatic discharge
immunity test as specified in Chapter 5 of GB/T 17626.2-2006.
6.12.1.2 Radiated radio-frequency electromagnetic field immunity
The charger shall be able to withstand the level 3 radiated radio-frequency
electromagnetic field immunity test as specified in Chapter 5 of GB/T
17626.3-2006.
6.12.1.3 Electrical fast transient/burst immunity
The charger shall be able to withstand the level 3 electrical fast transient/
burst immunity test as specified in Clause 5 of 17626.4-2008.
6.12.1.4 Surge immunity
The charger shall be able to withstand the level 3 surge immunity test as
specified in Clause 5 of 17626.5-2008.
6.12.2 Radio disturbance limits
6.12.2.1 Radiation disturbance limits
The charger shall comply with the radiation disturbance limits as specified in
Table 4.
8.1.2.3 The charger under test shall, before being energized, be balanced
with the ambient temperature.
8.1.3 Measurement instruments for test
8.1.3.1 The instruments and equipment for test purposes shall have the
qualification certificate AND the metering verification certificate within the
valid period.
8.1.3.2 The instruments and equipment for testing the performance indicators
of the charger shall have adequate resolution, accuracy and stability, AND
shall be at least one grade higher than the corresponding technical indicator
of the charger under test.
8.2 Environmental conditions test
8.2.1 Low temperature test
In accordance with the provisions of GB/T 2423.1-...