NB/T 33001-2018 PDF English
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| NB/T 33001-2018 | English | 260 |
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Specification for electric vehicle off-board conductive charger
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| NB/T 33001-2010 | English | 85 |
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Specification for electric vehicle off-board conductive charger
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NB/T 33001-2018: Specification for electric vehicle off-board conductive charger---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/NBT33001-2018
NB
ENERGY INDUSTRY STANDARD
ICS 29.200
K 81
Registration number. 64301-2018
Replacing NB/T 33001-2010
Specification for electric vehicle
off-board conductive charger
Issued on. APRIL 03, 2018
Implemented on. JULY 01, 2018
Issued by. National Energy Administration
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Basic composition... 10
5 Classification of charger... 10
6 Functional requirements... 13
7 Technical requirements... 17
8 Marking, packaging, transportation, storage... 28
1 Scope
This standard specifies the terms and definitions, basic compositions,
classification, functional requirements, technical requirements, marking,
packaging, transportation, storage of electric vehicle off-board conductive
charger (hereinafter shortly referred to as charger).
This standard is applicable to the electric vehicle off-board conductive charger
which uses conductive charging method. The maximum rated voltage of the
power supply is 1000V AC or 1500V DC, the maximum rated output voltage is
1500V DC.
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 2423.1-2008 Environmental testing - Part 2.Test methods - Tests A.
Cold
GB/T 2423.2-2008 Environmental testing - Part 2.Test methods - Tests B.
Dry heat
GB/T 2423.4-2008 Environmental testing for electric and electronic products
- Part 2.Test method - Test Db. Damp heat, cyclic (12 h+12 h cycle)
GB/T 2423.16-2008 Environmental testing - Part 2.Test methods - Test J
and guidance. Mold growth
GB/T 2423.17-2008 Environmental testing for electric and electronic
products - Part 2.Test method - Test Ka. Salt mist
GB/T 2423.55-2006 Environmental testing for electric and electronic
products - Part 2.Test methods - Test Eh. hammer tests
GB/T 4208 Degrees of protection provided by enclosure (IP code)
GB/T 4797.5 Classification of environmental conditions - Environmental
conditions appearing in nature - Precipitation and wind
GB/T 13384 General specifications for packing of mechanical and electrical
product
3 Terms and definitions
The terms and definitions as defined in GB/T 18487.1-2015, GB/T 19596-2017,
GB/T 29317 as well as the following terms and definitions apply to this
document.
3.1
Conductive charging
The way in which the battery is charged by electrical conduction.
3.2
Off-board charger
A dedicated device that is fixedly connected to an AC or DC power source,
converts its electrical energy into DC power, uses a conductive manner to
charge the power battery of electric vehicle.
3.3
Charging terminal
When an electric vehicle is charged, a part of the off-board conductive
charger which needs to be faced and operated by the charging operators,
which generally consists a charging cable, a vehicle plug, a human-machine
interface, which may also include the components of metering,
communication, control, and the like.
3.4
Split type charger
The charger which structurally separate the power conversion unit from the
charging terminal, which are connected by a cable.
3.5
Integral charger
A charger which accommodates the power conversion unit, the charging
terminal and the like in a cabinet (box), to structurally integrate them.
3.6
Dynamic power allocation
The charger dynamically adjusts the maximum output power of each vehicle
plug according to the vehicle charging demand, its own load status, the
superior monitoring and control command, based on the predetermined
power distribution control strategy.
4 Basic composition
The basic composition of the charger includes a power source input, a power
conversion unit, an output switch unit, a charging cable, a vehicle plug, a control
power source, a charging control unit, a human-machine interaction unit, a
functional unit such as a meter. The block diagram for the composition of the
charger is as shown in Figure 1.
5 Classification of charger
5.1 By environmental conditions of use
5.1.1 Normal environment of use
The charger is classified according to the normal environment of use.
5.1.2 Special environment of use
It can be classified according to the special conditions of use as specified in
14.2 of GB/T 18487.1-2015.
5.2 By the place of installation and use
The charger is classified according to the place of installation.
5.3 By object of use
The charger is classified according to the object of use.
5.4 By the input characteristics of charger
The charger is classified according to the power supply system to which it is
connected.
5.5 By the installation method
The chargers are classified according to the installation method.
5.6 By structural form
The chargers are classified according to their structural forms.
5.7 By the number of vehicle plugs
The chargers are classified according to the number of vehicle plugs.
6 Functional requirements
6.1 Charge control function
The charger shall have automatic charging control function, it may have manual
charging control function.
6.2 Communication function
The charger shall have the function of communicating with the electric vehicle��s
BMS or the vehicle controller, to determine whether the charger is properly
connected to the electric vehicle��s power battery system, to obtain the electric
vehicle��s BMS or vehicle controller��s charging parameters and charging real-
time data. The communication protocol between the charger and the BMS or
vehicle controller shall comply with the provisions of GB/T 27930.
The charger should have the function of communicating with the superior
monitoring system or the operation management system.
6.3 Insulation detection function
The charger shall have the function of insulation detection of the DC output
circuit, meanwhile the insulation detection function of the charger shall be
compatible with the vehicle��s insulation detection function.
6.4 Short-circuit detection function of DC output circuit
The charger shall have the function of short-circuit detection of the DC output
circuit.
6.5 Vehicle plug lock function
The vehicle plug of the charger shall be provided with a locking device, whose
function shall comply with.
6.6 Precharge function
The charger shall have a precharge function. At the charging-startup phase,
after the electric vehicle closes the vehicle-side DC contactor, the charger shall
detect the battery voltage and determine whether the voltage is normal. When
the charger detects that the battery voltage is normal, it adjusts the output
voltage to the current battery-end's voltage minus 1 V ~ 10 V, then closes the
DC output contactor at the charger side.
6.7 Man-machine interaction function
6.7.1 Display function
The charger shall display the following status information.
6.7.2 Input function
The charger should have manual input and control functions.
6.8 Metering function
The public type charger shall have the function of metering the charged electric
energy, the metering function shall comply with the provisions of GB/T 29318.
6.10 Protection function
6.10.1 The charger shall have overvoltage protection and undervoltage
protection on the power input side.
6.10.2 The charger shall have output overvoltage protection.
7 Technical requirements
7.1 Environmental conditions
7.1.1 Ambient temperature. -20 ��C ~ 50 ��C (for outdoor use), -5 ��C ~ 50 ��C (for
indoor use).
7.1.2 Relative humidity. 5% ~ 95%.
7.1.3 Pollution degree. 3 (for outdoor use), 2 (for indoor use), 3 (for indoor
exposure to contaminated industrial environment).
7.2 Power requirements
7.2.1 Power supply voltage and current
The input voltage and current requirements of the charger shall comply with the
requirements of Table 1.The allowable fluctuation range of the input voltage is
��15% of the rated voltage.
7.2.2 Power supply��s frequency
The AC input power supply's frequency is 50 Hz �� 1 Hz.
7.3 Environmental adaptation requirements
7.3.1 Degree of protection
The degree of protection of the charger��s housing shall not be lower than the
following provisions in GB/T 4208.
7.3.2 Three-proof (damp-proof, mold-proof, anti-salt mist) protection
The printed circuit board, connector-plugs and other components in the charger
shall be protected against moisture, mold growth, salt spray. Among them, the
mold-proof corrosion test refers to the test method 1 in GB/T 2423.16-2008, the
degree of mold growth is not lower than the 2a as required in the standard; the
salt spray corrosion test refers to the test method as specified in clause 6 of
GB/T 2423.17-2008, the test lasts for 48 h. After the test, it is cleaned by a soft
brush for 7 min in 15 ��C ~ 40 ��C running water. After drying for 1 h, the product
shall be free of red/green rust, coating peel-off, bulging.
7.4 Requirements for internal temperature-rise
For the circuit through which the power supply input current flows, such as the
terminal block, the input circuit breaker, the input contactor, etc.; the power
conversion unit and its internal components, the input and output terminals; the
circuit through which the DC output current flows, such as the terminal block,
the DC fuse, the DC contactor, the power resistor, the current sampling shunt,
the vehicle plug, etc., the maximum temperature of these heat-generating
components and parts is less than or equal to 90% of the maximum withstand
temperature of components and parts, meanwhile it shall not affect the normal
operation of the surrounding components and there is no component damage.
7.5 Safety requirements
7.5.1 Allowable temperature
The surface temperature of the charger shall meet the requirements of 11.6.3
in GB/T 18487.1-2015.
7.5.2 Protection against electric shock
The protection against electric shock of the charger shall comply with the
provisions of clause 7 of GB/T 18487.1-2015.
7.5.3 Electric clearance and creepage distance
The electric clearance and creepage distance of the charger shall comply with
the provisions of 10.4 of GB/T 18487.1-2015.
7.5.4 Grounding requirements
The grounding of the charger shall meet the following requirements.
7.5.5 Electrical isolation requirements
Between the power supply input and the DC output of the charger, it shall use
the electrical isolation protection measures. For the single interface charger, it
shall also use the electrical isolation protection measures between the DC
output interfaces.
7.6 Electrical insulation performance
7.6.1 Insulation resistance
Use a test instrument which has an open circuit voltage of the DC voltage grade
as specified in Table 3, to measure the insulation resistance between each of
the live circuits of the non-electrical connection of the charger and between the
individual live circuits and the ground (metal housing), which shall not be less
than 10 M.
7.7 Output requirements
7.7.1 Output voltage and current
The output voltage and current meet the following requirements.
8 Marking, packaging, transportation, storage
8.1 Marking
8.1.1 The charger shall have a nameplate which shall be installed in an obvious
position. The nameplate shall indicate the following.
8.1.2 All kinds of switches, indicators, terminals, terminal blocks, etc. on the
charger shall have corresponding text symbol marks and shall be consistent
with the text symbols on the wiring diagram. The corresponding position shall
have wiring, grounding and safety signs, which shall be clear and easy-to-
distinguish, no color fading, no peeling off, evenly arranged, convenient to
observe.
8.2 Packaging
8.2.1 The packaging of the charger shall comply with the provisions of GB/T
13384 and shall have the following contents.
8.2.2 Charger��s packing information shall include.
8.3 Transportation
During the transportation process, the charger shall not have severe vibration
shocks, exposure to sun and rain, or inversed.
8.4 Storage
The charger shall be stored in a warehouse with air circulation, temperature
between 25 ��C ~ 55 ��C, monthly average relative humidity not greater than 90%,
non-corrosive and explosive gases. During storage, it shall not be exposed to
rain, sun, condensation, or frost.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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