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NB/T 33002-2018

Chinese Standard: 'NB/T 33002-2018'
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Detail Information of NB/T 33002-2018; NB/T33002-2018
Description (Translated English): (Electric vehicle AC charging pile technical conditions)
Sector / Industry: Energy Industry Standard (Recommended)
Classification of Chinese Standard: K81
Classification of International Standard: 29.200
Word Count Estimation: 14,122
Date of Issue: 2018-12-25
Date of Implementation: 2019-05-01
Older Standard (superseded by this standard): NB/T 33002-2010
Quoted Standard: GB/T 191; GB/T 2423.1-2008; GB/T 2423.2-2008; GB/T 2423.4-2008; GB/T 2423.16-2008; GB/T 2423.55-2006; GB/T 4208; GB/T 4797.6-2013; GB/T 13384; GB/T 16935.1; GB/T 18487.1-2015; GB/T 18487.2-2017; GB/T 20234.1; GB/T 20234.2; GB/T 28569; GB/T 29317-2012
Drafting Organization: Shenzhen Aotexun Power Equipment Co., Ltd.
Administrative Organization: Energy Industry Electric Vehicle Charging Facilities Standardization Technical Committee
Regulation (derived from): National Energy Administration Announcement No.16 of 2018
Summary: This standard stipulates the basic composition, classification, functional requirements, technical requirements, inspection rules, and marking, packaging, transportation and storage of electric vehicle AC charging piles (hereinafter referred to as charging piles). This standard applies to electric vehicle AC charging piles.

NB/T 33002-2018
ENERGY INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 29.200
K 81
Registration number: 68877-2019
Replacing NB/T 33002-2010
Specification for electric vehicle AC charging spot
电动汽车交流充电桩技术条件
ISSUED ON: DECEMBER 25, 2018
IMPLEMENTED ON: MAY 01, 2019
Issued by: State Energy Administration
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 6 
4 Basic composition ... 7 
5 Classification of charging spot ... 8 
6 Functional requirements ... 10 
7 Technical requirements ... 11 
8 Marking, packaging, transportation, storage ... 19 
Specification for electric vehicle AC charging spot
1 Scope
This standard stipulates the basic composition, classification, functional
requirements, technical requirements, inspection rules, marking, packaging,
transportation and storage of electric vehicle AC charging spot (hereinafter
referred to as charging spot).
This standard applies to electric vehicle AC charging spot.
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 191 Packaging - Pictorial marking for handling of goods
GB/T 2423.1-2008 Environmental testing for electric and electronic and
electronic products - Part 2: Test methods - Tests A: Cold
GB/T 2423.2-2008 Environmental testing for electric and electronic products
- 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 (12h + 12h cycle)
GB/T 2423.16-2008 Environmental testing for electric and electronic
products - Part 2: Tests - Test J and guidance: Mould growth
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 4797.6-2013 Classification of environmental conditions -
Environmental conditions appearing in nature - Dust, sand, salt mist
GB/T 13384 General specifications for packing of mechanical and electrical
product
GB/T 16935.1 Insulation coordination for equipment within low-voltage
systems - Part 1: Principles requirements and tests
GB/T 18487.1-2015 Electric vehicle conductive charging system - Part 1:
General requirements
GB/T 18487.2-2017 Electric vehicle conductive charging system - Part 2:
EMC requirements for off-board electric vehicle supply equipment
GB/T 20234.1 Connection set for conductive charging of electric vehicles -
Part 1: General requirements
GB/T 20234.2 Connection set for conductive charging of electric vehicles -
Part 2: AC charging coupler
GB/T 28569 Electric energy metering for electric vehicle AC charging spot
GB/T 29317-2012 Terminology of electric vehicle charging/battery swap
infrastructure
3 Terms and definitions
The terms and definitions as defined in GB/T 18487.1-2015 and GB/T 29317-
2012 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
On-board charger
The dedicated device which is fixedly installed on an electric vehicle, to
convert AC power into DC power, to charge the power battery of electric
vehicle through conduction.
3.3
AC charging spot
A dedicated power supply device for providing AC power to an electric
vehicle which is equipped with an on-board charging device by means of
conduction.
3.4
5.5 By the level of output voltage
Charging spot are classified according to the level of output voltage:
- Single-phase AC charging spot;
- Three-phase AC charging spot.
6 Functional requirements
6.1 Charging control guidance
The charging spot shall have a charging control guidance function that complies
with the requirements of Appendix A of GB/T 18487.1-2015.
6.2 Communication function
The charging spot should have the function of communicating with the superior
monitoring management system.
6.3 Charging connection device
The charging connection device of the charging spot shall comply with the
provisions of GB/T 20234.1 and GB/T 20234.2.
6.4 Electronic locking device
For the charging spot which uses the connection method A or the connection
method B as specified in clause 3.1 of GB/T 18487.1-2015, then the rated
current of the charging spot is greater than 16 A, the power socket should be
equipped with an electronic locking device. When the electronic locking device
is not reliably locked, the charging spot shall stop charging or not start charging.
6.5 Human-computer interaction
6.5.1 Display function
The charging spot shall display the following status:
- The operating status indication of the charging spot: standby, charging,
failure.
The charging spot should display the following information:
- Output voltage, output current:
- The time has been charged, the power has been charged, the amount has
been charged.
Table 1 -- Input voltage / current requirements of charging spot
Power input method Input current rating In, A Input voltage rating, V Connection method
1 In ≤ 32 Single-phase/3-phase 220/380 A, B, or C
2 In > 32 3-phase 380 C
Note: The definition of the connection method is as shown in clause 3.1 of GB/T 18487.1-2015.
7.2.2 Power frequency
The AC input power's frequency is (50 ± 1) Hz.
7.3 Environmental resistance requirements
7.3.1 Degree of protection
The degree of protection as provided by the enclosure of charging spot is not
lower than IP32 (indoor type) or IP54 (outdoor type) as specified in GB/T 4208.
Note: The degree of protection of the charging interface part during the
connection process is not considered.
7.3.2 Three-proof (moist-proof, mildew-proof, salt mist-proof) protection
The printed circuit board, connectors and other components in the charging
spot shall be subject to the moist-proof, mildew-proof, salt mist-proof treatment.
Salt spray corrosion resistance shall meet the requirements of Figure 7 of GB/T
4797.6-2013.
7.3.3 Rust-proof (anti-oxidation) protection
The charging spot's iron casing and the exposed iron brackets and parts shall
adopt double rust prevention measures. The non-ferrous metal casing shall
also have an oxidation protection film or anti-oxidation treatment.
7.3.4 Anti-theft protection
Charging spot shall have the necessary anti-theft measures.
7.4 Temperature rise requirements
Under normal experimental conditions, the AC input is rated, the charging spot
is continuously operated for a long time under the rated output power. The
temperature rise of each internal heating component and each part shall not
exceed the requirements in Table 2. The temperature of the heating element
shall not affect the normal operation of the surrounding components and there
is no component damage.
7.7.1 Charging spot shall have output overload and short circuit protection
functions. The overload and short circuit protection shall comply with the
requirements of Chapter 12 of GB/T 18487.1-2015.
7.7.2 When the rated current of the charging spot is greater than 16A and the
connection method A or connection method B as specified in 3.1 of GB/T
18487.1-2015 is adopted, the charging spot's power supply socket shall be
provided with temperature monitoring device. The charging spot shall have
temperature monitoring and over-temperature protective function.
7.7.3 During the charging process, when the set end condition is reached, or
the operator issues a stop-charging-command to the charging spot, the
charging spot shall control the switch S1 to +12V; after detecting that the S2
switch is turned off, cut off the AC power supply circuit within 100 ms. When it
does not detect the cutoff of S2 for more than 3s, it forcedly cut off the AC power
supply circuit. If the power supply interface has an electronic lock, it shall be
unlocked after the AC circuit is cut off for 100 ms.
Note: See Figure 6 for the location of the S1 and S2 switches.
7.7.4 When the charging spot with emergency stop function starts the
emergency stop device, the charging spot shall cut off the AC power supply
circuit within 100 ms.
7.7.5 When the continuity of the protection ground between the charging spot
and the electric vehicle is lost, the charging spot shall control the switch S1 to
+12V and cut off the AC power supply circuit within 100 ms.
7.7.6 When the charging spot detects that the voltage amplitude at the detection
point 1 is 12V (state 1) or other non-6V (state 3), non-9V (state 2) state, the
charging spot shall control the switch S1 to +12V and cut off the AC power
supply circuit within 100 ms;
When it is detected that the power supply interface is changed from full
connection to disconnection [detection point 4 is changed from full connection
to disconnection (state A)], the charging spot shall switch the switch S1 to the
+12V connection state and disconnect the AC power supply circuit within 100
ms;
When the voltage amplitude at the detection point 1 changes from 6V to 9V, the
charging spot shall cut off the AC power supply circuit within 100 ms and
continuously output the PWM signal. When the vehicle closes S2 again, the
charging spot shall be connected to the AC power supply circuit again.
connected 12V+ state to the PWM connection state, the power supply control
device issues a PWM signal. The power supply control device determines
whether the charging connection device is fully connected by measuring the
voltage of the detection point 1 and the detection point 4. For the charging spot
with power-saving mode, the time for it to enter the power saving mode should
be not less than 24 h.
7.9 Charge control timing sequence and process
The timing sequence and process of charging control shall meet the
requirements of Appendix A.3, Appendix A.4, Appendix A.5 of GB/T 18487.1-
2015.
7.10 Standby power
At rated input voltage, the standby power of the charging spot (one spot with
double charging interfaces and below) shall not exceed 15W.
7.11 Mechanical strength
The charging spot is well packaged and tested according to the method as
specified in GB/T 2423.55-2006. The outer casing shall be able to withstand
severe impact energy of 20 J (5 kg, 0.4 m). After the test, the performance shall
not be reduced, the IP protection degree of the charging spot is not affected,
the operation and locking points of the door are not damaged, the live part and
the outer casing are not in contact due to deformation, it meets the requirements
for clearance and creepage distance.
7.12 Noise
The charging spot runs stably at the rated output power. Under the condition
that the ambient noise is not more than 40dB, at a point 1 m horizontally from
the charging spot, the measured maximum noise shall not exceed 55dB.
7.13 Characteristics of mechanical switches
7.13.1 Switch
The switch inside the charging spot shall comply with the requirements of 10.2.1
of GB/T 18487.1-2015.
7.13.2 Contactor
The contactor in the charging spot shall comply with the requirements of 10.2.2
of GB/T 18487.1-2015.
7.13.3 Circuit breaker
For the test load conditions of the charging spot......
Related standard:   NB/T 20005.18-2018  NB/T 20005.39-2018
   
 
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