NB/T 10641-2021 English PDF (NBT10641-2021)

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NB/T 10641-2021: Testing equipment on-site for off-board charger of electric vehicle
NB/T 10641-2021
NB
ENERGY INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 17.220
CCS N 29
Testing equipment on-site for off-board charger of electric
vehicle
ISSUED ON: APRIL 26, 2021
IMPLEMENTED ON: OCTOBER 26, 2021
Issued by: National Energy Administration
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 Basic composition ... 5
5 Technical requirements ... 6
5.1 Environmental conditions ... 6
5.2 Mechanical requirements ... 6
5.3 Electrical requirements ... 7
5.4 Electromagnetic compatibility requirements ... 7
5.5 Measurement performance requirements ... 8
5.6 Interface requirements ... 9
5.7 Functional requirements ... 10
6 Test methods ... 11
6.1 Environmental test ... 11
6.2 Mechanical performance test ... 12
6.3 Electrical performance test ... 13
6.4 Electromagnetic compatibility test ... 14
6.5 Measurement performance test ... 16
6.6 Interface test ... 19
6.7 Functional requirements ... 19
7 Inspection rules ... 20
7.1 Inspection classification ... 20
7.2 Type inspection ... 20
7.3 Exit-factory inspection ... 21
8 Marking and packaging ... 22
8.1 Marking ... 22
8.2 Packaging ... 22
Appendix A (Informative) Communication protocol between testing equipment on-site
for off-board charger and load ... 23
Testing equipment on-site for off-board charger of electric
vehicle
1 Scope
This document specifies the basic composition, technical requirements, test methods,
inspection rules, marking, packaging and other requirements of the testing equipment
on-site for off-board charger of electric vehicle (hereinafter referred to as “testing
equipment”).
This document applies to newly manufactured testing equipment on-site for off-board
charger of electric vehicle.
2 Normative references
The following documents are referred to in the text in such a way that some or all of
their content constitutes requirements of this document. For dated references, only the
version corresponding to that date is applicable to this document; for undated references,
the latest version (including all amendments) is applicable to this document.
GB/T 2423.1, Environmental testing - Part 2: Test methods - Tests A: Cold
GB/T 2423.2, Environmental testing - Part 2: Test methods - Tests B: Dry heat
GB/T 2423.4, Environmental testing for electric and electronic products - Part 2:
Test method - Test Db: Damp heat, cyclic (12h+12h cycle)
GB/T 4208-2017, Degrees of protection provided by enclosure (IP code)
GB/T 5169.11, Fire hazard testing for electric and electronic products - Part 11:
Glowing/hot-wire based test methods - Glow-wire flammability test method for end-
products (GWEPT)
GB/T 17215.211-2006, Electricity metering equipment (a.c.) - General requirements,
tests and test conditions - Part 11: Metering equipment
GB/T 17626.2-2018, Electromagnetic compatibility - Testing and measurement
techniques - Electrostatic discharge immunity test
GB/T 17626.4-2018, Electromagnetic compatibility - Testing and measurement
techniques - Electrical fast transient/burst immunity test
GB/T 17626.8-2006, Electromagnetic compatibility (EMC) - Part 8: Testing and
measurement techniques - Power frequency magnetic field immunity test
GB/T 18487.1-2015, Electric vehicle conductive charging system - Part 1: General
requirements
GB/T 18487.2, Electric vehicle conductive charging system - Part 2: EMC
requirements for off-board electric vehicle supply equipment
GB/T 20234.3-2015, Connection set for conductive charging of electric vehicles -
Part 3: DC charging coupler
GB/T 27930, Communication protocols between off-board conductive charger and
battery management system for electric vehicle
GB/T 29317, Terminology of electric vehicle charging/battery swap infrastructure
GB/T 34657.1, Interoperability test specifications of electric vehicle conductive
charging - Part 1: Supply equipment
GB/T 34658, Conformance test for communication protocols between off-board
conductive charger and battery management system for electric vehicle
NB/T 33001, Specification for electric vehicle off-board conductive charger
3 Terms and definitions
Terms and definitions determined by GB/T 18487.1-2015, GB/T 18487.2, GB/T 29317
and NB/T 33001, as well as the following, are applicable to this document.
3.1
testing equipment on-site for off-board charger of electric vehicle
Device for on-site testing of off-board charger performance.
4 Basic composition
The testing equipment is composed of a vehicle DC charging interface circuit simulator,
a DC standard electric energy meter, a power interface, a control unit, a human-
computer interaction module, a clock unit, a waveform and protocol analysis module,
etc., as shown in Figure 1.
5.2.2 Heat resistance and flame retardancy
The testing equipment shall be able to withstand the glow-wire test, and shall not catch
fire after being subjected to the test method in GB/T 5169.11.
Test severity: The test temperature is 650 °C ± 10 °C, and the action time is 30 s ± 1 s.
5.2.3 Enclosure protection grade
The enclosure protection grade of the testing equipment shall not be lower than the
requirements of IP30 in GB/T 4208-2017.
5.2.4 Earthing terminal
The testing equipment shall have a protective earthing terminal with an obvious
earthing mark, and shall have a reliable electrical connection with an accessible metal
enclosure. The electric conductor of the terminal shall be made of copper; the surface
shall be anti-corrosion treated; the diameter of the thread shall not be less than 5 mm.
5.3 Electrical requirements
5.3.1 Power supply
The AC power supply is required as follows:
a) rated voltage: single-phase 220 V, allowable deviation -15% ~ +10%;
b) frequency: 50 Hz, allowable deviation ±0.5 Hz;
c) waveform: sine, waveform distortion factor not greater than 5%.
5.3.2 Insulation resistance
The insulation resistance between non-electrically connected live circuits and between
each independent live circuit and the ground (metal enclosure) shall not be less than 10
MΩ.
5.3.3 Dielectric strength
The testing equipment shall be able to withstand the test of 6.3.3 without breakdown,
flashover and component damage.
5.4 Electromagnetic compatibility requirements
5.4.1 Electrostatic discharge immunity
The testing equipment shall be able to withstand the electrostatic discharge immunity
test of severity grade 3 specified in Table 1 of GB/T 17626.2-2018. After the test, the
5.6.2 Power pulse input interface
The testing equipment shall have an electric energy pulse input interface for electric
energy measurement calibration. The low level of the pulse signal is 0 V ~ 0.7 V, and
the high level is 3.5 V ~ 24 V. The input impedance shall be greater than 10 kΩ, and the
interface should be compatible with passive pulse signals.
5.6.3 Power pulse output interface
The testing equipment shall have an electric energy pulse output interface for electric
energy measurement calibration. The lower level of the output pulse signal is 0 V ~ 0.4
V, and the high level is 4.75 V ~ 24 V.
5.6.4 Auxiliary interface
It can be equipped with charging communication (S+, S-) interface, low-voltage
auxiliary power supply (A+, A-) interface, charging connection confirmation (CC1,
CC2) signal lead-out interface, grounding (PE) signal lead-out interface, DC power
supply (DC+, DC-) lead-out i...