NB/T 33008.1-2018 English PDF (NBT33008.1-2018)

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NB/T 33008.1-2018: Inspection and test specifications for electric vehicle charging equipment. Part 1: Off-board charger
NB/T 33008.1-2018
ENERGY INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 29.200
K 81
Filing number: 68878-2018
Replacing NB/T 33008.1-2013
Inspection and test specifications for electric vehicle
charging equipment - Part 1: Off-board charger
ISSUED ON: DECEMBER 25, 2018
IMPLEMENTED ON: MAY 01, 2019
Issued by: National Energy Administration
Table of Contents
Foreword ... 3 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms and definitions ... 8 
4 Inspection rules ... 8 
5 Test methods ... 12 
Appendix A (Informative) Battery simulation test device ... 50 
Inspection and test specifications for electric vehicle
charging equipment - Part 1: Off-board charger
1 Scope
This part specifies the inspection rules and test methods for the off-board
charger of electric vehicle (hereinafter referred to as chargers).
This part applies to the type test, exit-factory inspection, arrival acceptance of
the charger.
This part applies to the charger as specified in NB/T 33001-2018.
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 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 2423.17-2008 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 4824-2013 Industrial, scientific and medical equipment - Radio-
frequency disturbance characteristics - Limits and methods of measurement
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 20234.1-2015 Connection set for conductive charging of electric
vehicles - Part 1: General requirements
GB/T 20234.3-2015 Connection set for conductive charging of electric
vehicles - Part 3: DC charging coupler
GB/T 27930-2015 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 29318 Electric energy metering for electric vehicle off-board charger
GB/T 34657.1-2017 Interoperability test specifications of electric vehicle
conductive charging - Part 1: Supply equipment
GB/T 34658-2017 Conformance test for communication protocols between
off-board conductive charger and battery management system for electric
vehicle
NB/T 33001-2018 Specification for electric vehicle off-board conductive
charger
IEC 61851-23 Electric vehicle conductive charging system - Part 23: Electric
vehicle charging station (2nd edition, committee draft, CD)
3 Terms and definitions
The terms and definitions as defined in GB/T 18487.1-2015, GB/T 18487.2-
2017, GB/T 29317, NB/T 33001-2018 apply to this document.
4 Inspection rules
4.1 Classification of inspections
Product inspection is divided into three types: type test, exit-factory inspection,
arrival inspection.
4.1.1 Type test
The product must be type tested under the following conditions:
peak value.
5.1.4 Requirements for test instrument
Unless otherwise specified, the instruments used in the test shall meet the
following requirements:
a) The measuring instruments and meters used shall pass the metrological
verification or calibration; the certificate shall be valid;
b) The measuring range of measuring instruments and meters shall cover
the measuring range being measured;
c) The measurement uncertainty of the test instrument, meter or system shall
be better than 1/3 of the allowable error being measured;
d) The measured value shall be more than 1/5 of the range of the selected
instrument and meter.
5.1.5 Current sensor
The current can be measured using the ammeter direct measurement method
or the secondary measurement method via a current sensor. The sensor can
be a shunt or a Hall sensor. The sensor shall meet the following requirements:
a) When using a current sensor, it shall ensure that the environmental
conditions meet the requirements for use; take isolation and protection
measures when necessary;
b) It shall select the current sensor with suitable range.
5.1.6 Test load
It is recommended to use a resistive load or a battery simulation device with a
function to simulate battery voltage and load. See Appendix A.
5.2 General inspection
5.2.1 Visual inspection
Visually check that the housing of the charger (including the charging
connection device) shall be flat, without obvious defects such as bumps,
scratches, deformation, etc.; the surface coating and plating shall be uniform
and not fall off; the parts (including the internal contacts of the connection
device) shall be fastened and reliable, without such defects and damages as
rust, burr, crack.
5.2.2 Marking inspection
Inspect the outdoor chargers, which shall have anti-theft measures, such as
anti-theft locks and anti-theft screws. Meanwhile there shall be relevant
requirements in the product installation instructions.
5.3 Functional test
5.3.1 Test of charge control function
Follow the steps below to perform a charge control function test:
a) Connect the charger to the test system, to check the charger, which shall
be able to dynamically adjust the charging output based on the data
provided by the vehicle battery management system’s simulation software,
perform corresponding actions according to the set parameters, to control
the charging process and complete the charging automatically.
b) When the charger with manual charging control function is being
debugged or maintained without being connected to a higher-level
monitoring system or operation management system and the vehicle,
check that the charger shall manually set the charging parameters in the
manner declared by the manufacturer, implement charging start-stop
operation, to complete the charging process.
5.3.2 Communication function test
For chargers that have the communication function with the higher-level
monitoring system or operation management system as specified by the
manufacturer, connect the test system. During the charging process, check that
the charger shall be able to communicate according to the agreed protocol
requirements.
5.3.3 Test of insulation testing function
Connect the charger to the test system and perform the test according to the
following steps:
a) Before the insulation test, the absolute value of the voltage outside the
simulation K1 and K2 is greater than 10 V, check that the charger shall
stop the insulation test process and issue an alarm prompt;
b) Check that the charger end is provided with...