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This standard replaces NB/T 33002-2010 Specification for electric vehicle A.C charging point. In addition to editorial changes, the following main technical changes have been made with respect to NB/T 33002-2010:
——Clause 4 “General provisions” in the former standard is deleted.
——Clause 5“Classification of charging spots” from different perspectives is added.
——the Clause 8“Inspection and test items” in the former standard is modified; “arrival acceptance” is added; contents with regard to test items and test methods are deleted, and moved to NB/T 33008.2.
——Clause 3 “Terms and definitions” is modified, and “power saving mode”, “standby mode” and “standby power” are added.
——Clause 4 “Basic construction” is modified, and block diagram for the basic construction is added.
——in Clause 6 “Functional requirements”, “man-machine interaction function”, “metering function” and “external communication” are modified; and the “software upgrading” in the former standard is deleted; the “input function” is incorporated into the “man-machine interaction function” with modification; “charging control pilot”, “connection set for charging”, “electronic locking device”, “emergency stop function” and “type of connection” are added.
——in Clause 7 “Technical requirements”，the “environmental conditions”, “requirements for power supply”, “requirements for environmental resistance”, “electrical insulation properties” and “electromagnetic compatibility" in the former standard are modified; “requirements for temperature rise”, “requirements for protection”, “requirements for protective function”, “requirements for control pilot circuit”, “charging control sequence and process”, “standby power”, “mechanical strength”, “vibration”, “noise”, “requirements for mechanical switch characteristics" and “high/low temperature and humid heat properties” are added.
——Clause 8 “Marking, packaging, transportation and storage” corresponds to Clause 9 “Marking” of the former standard.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
This part was proposed by the China Electricity Council.
This standard is under the jurisdiction of the Standardization Technical Committee 3 on Electric Vehicle Charging Infrastructure of National Energy Administration (NEA/TC3).
The previous edition replaced by this part is as follows:
——NB/T 33002-2010.
During the implementation of this standard, the relevant opinions or suggestions, whenever necessary, can be posted or passed on to the Standardization Center of the China Electricity Council (No. 1, 2nd Lane, Baiguang Road, Beijing 100761).
Specification for electric vehicle AC charging spot
1 Scope
This standard specifies the basic construction, classification, functional requirements, technical requirements, inspection rules as well as marking, packaging, transportation and storage of the electric vehicle AC charging spot (hereinafter referred to as the “charging spot”).
This standard is applicable to electric vehicle AC charging spots.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 191 Packaging — Pictorial Marking for Handling of Goods
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 (12h+12h cycle)
GB/T 2423.16-2008 Environmental testing - Part 2: Test methods - Test J and guidance: Mold 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
For the purpose of this document, the terms and definitions given in GB/T 18487.1-2015 and GB/T 29317-2012 and the following apply.
3.1
conductive charging
a method of charging a storage battery by electrical conduction
3.2
on-board charger
a special device that is fixed and mounted on the electric vehicle and is used to convert AC electric energy to DC electric energy, and then charge the storage battery of the electric vehicle by conduction
3.3
AC charging spot
a special power supply device that provides AC power for electric vehicles with on-board charging devices by conduction
3.4
power saving mode
a state of the charging spot to close some circuits (e.g., PWM output signal) in order to reduce losses, when the vehicle is connected to the charging spot, but not in the charging state
In the power saving mode, charging function can’t be awakened by closing S2 switch of the vehicle.
3.5
standby mode
a state that the charging spot only maintains basic functions such as background communication and state indication in case of no vehicle charging or personnel operation
3.6
standby power
Active power of AC input when the charging spot is in standby mode
4 Basic construction
The basic construction of charging spot includes the spot body, and AC connection set for charging. The spot body includes but is not limited to a main power supply circuit, a control unit, a man-machine interaction unit, a metering and billing unit (optional), etc., with mutual logical relationship shown in Figure 1.
Keys:
QF——air circuit breaker with leakage protection function, or similar device;
WH——AC electric energy meter;
KM——contactor for controlling the output of the AC charging spot, or similar device.
Figure 1 Block diagram for basic construction of charging spot
5 Classification of charging spots
5.1 By service environment
5.1.1 Normal service environment
——indoor charging spot;
——outdoor charging spot.
5.1.2 Special service environment
The charging spots may be classified by the special service conditions given in Sub-clause 14.2, GB/T 18487.1-2015.
5.2 By service objects
By the service objects, the charging spots are classified into:
——public charging spot;
The charging spot is open to the general public and charged by the operator’s payment method;
——special charging spot;
The charging spot only provides charging services for specific vehicle owner, but is not open to the general public.
5.3 By installation modes
By installation modes, the charging spot is classified into:
——floor-type charging spot, see Figure 2;
——wall-mounted charging spot, see Figure 3.
Figure 2 Floor-type charging spot
Figure 3 Wall-mounted charging spot
5.4 By quantity of charging couplers
By quantity of charging couplers, the charging spot is classified into:
——one charging spot with one coupler, see Figure 4 (for example, floor-type charging spot);
——one charging spot with multiple couplers, see Figure 5 (for example, floor-type charging spot with double charging couplers).
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Basic construction
5 Classification of charging spots
6 Functional requirements
7 Technical requirements
8 Marking, packaging, transportation and storage
