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NB/T 33008.2-2018 English PDF (NBT33008.2-2013)

NB/T 33008.2-2018_English: PDF (NB/T33008.2-2018)
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NB/T 33008.2-2018English285 Add to Cart 0--9 seconds. Auto-delivery Inspection and test specifications for electric vehicle charging equipment. Part 2: A. C. charging spot Valid NB/T 33008.2-2018
NB/T 33008.2-2013English85 Add to Cart 0--9 seconds. Auto-delivery Inspection and test specifications for electric vehicle charging equipment Part 2: AC charging spot Obsolete NB/T 33008.2-2013


BASIC DATA
Standard ID NB/T 33008.2-2018 (NB/T33008.2-2018)
Description (Translated English) Inspection and test specifications for electric vehicle charging equipment. Part 2: A. C. charging spot
Sector / Industry Energy Industry Standard (Recommended)
Classification of Chinese Standard K81
Classification of International Standard 29.200
Word Count Estimation 20,294
Date of Issue 2018-12-25
Date of Implementation 2019-05-01
Older Standard (superseded by this standard) NB/T 33008.2-2013
Quoted Standard GB/T 2421.1-2008; GB/T 2423.1-2008; GB/T 2423.2-2008; GB/T 2423.4-2008; GB/T 2423.17-2008; GB/T 4208; GB 4824-2013; GB/T 7251.1-2013; GB 16935.1; GB/T 17625.2; GB/T 17625.7; GB/T 17626.2; GB/T 17626.3; GB/T 17626.4; GB/T 17626.5; GB/T 17626.6; GB/T 17626
Drafting Organization State Grid Corporation
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 specifies the inspection rules and test methods for electric vehicle AC charging piles (hereinafter referred to as charging piles). This section applies to the charging mode of connection mode A, connection mode B, and connection mode C in charging mode 3. This part is applicable to the type test, factory inspection and arrival acceptance of charging piles. This section applies to the charging pile specified in NB/T 33002-2018.

BASIC DATA
Standard ID NB/T 33008.2-2013 (NB/T33008.2-2013)
Description (Translated English) Inspection and test specifications for electric vehicle charging equipment Part 2: AC charging spot
Sector / Industry Energy Industry Standard (Recommended)
Classification of Chinese Standard K81
Classification of International Standard 29.200
Word Count Estimation 12,140
Quoted Standard GB/T 2423.1-2008; GB/T 2423.2-2008; GB/T 2423.3-2006; GB 4208; GB/T 17626.2; GB/T 17626.3; GB/T 17626.4; GB/T 17626.5; GB/T 17626.11; GB/T 18487.3-2011; GB/T 20234.2-2011; GB/T 29317-2012; NB/T 33002-2010
Drafting Organization State Grid Corporation
Administrative Organization Energy industry electric vehicle charging facilities for Standardization Technical Committee
Regulation (derived from) National Energy Board Notice 2013 No. 6; industry standard for filing Notice No. 2 of 2014 (No. 170 overall)
Summary This standard specifies the exchange of electric vehicle charging pile test conditions, test equipment, test rules, test items, test methods (hereinafter referred to as AC charging). This standard applies to AC charging type testing, factory inspection, a


NB/T 33008.2-2018 ENERGY INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 29.200 K 81 Filing number: 68879-2019 Replacing NB/T 33008.2-2013 Inspection and test specifications for electric vehicle charging equipment - Part 2: A.C. charging spot ISSUED ON: DECEMBER 25, 2018 IMPLEMENTED ON: MAY 01, 2019 Issued by: National Energy Administration Table of Contents Foreword ... 3  1 Scope ... 5  2 Normative references ... 5  3 Terms and definitions ... 7  4 Inspection rules ... 7  5 Test method ... 9  Inspection and test specifications for electric vehicle charging equipment - Part 2: A.C. charging spot 1 Scope This part specifies the inspection rules and test methods for AC charging spot of electric vehicle (hereinafter referred to as charging spot). This part applies to charging spot in connection mode A, connection mode B, and connection mode C in charging mode 3. This part applies to type testing, ex-factory inspection, arrival acceptance of charging spots. This part applies to charging spots as specified in NB/T 33002-2018. 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 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 GB/T 7251.1-2013 Low-voltage switchgear and control gear assemblies - Part 1: General GB 16935.1 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests GB/T 17625.2 Electromagnetic compatibility (EMC) - Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤ 16 A per phase and not subject to conditional connection GB/T 17625.7 Electromagnetic compatibility - Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with rated current ≤ 75 A and subject to conditional connection GB/T 17626.2 Electromagnetic compatibility (EMC) - Testing and measurement techniques - Electrostatic discharge immunity test GB/T 17626.3 Electromagnetic compatibility - Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test GB/T 17626.4 Electromagnetic compatibility - Testing and measurement techniques - Electrical fast transient/burst immunity test GB/T 17626.5 Electromagnetic compatibility - Testing and measurement techniques - Surge immunity test GB/T 17626.6 Electromagnetic compatibility - Testing and measurement techniques - Immunity to conducted disturbances induced by radio- frequency fields GB/T 17626.11 Electromagnetic compatibility - Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests GB/T 17626.34 Electromagnetic compatibility - Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests for equipment with mains current more than 16 A per phase 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 20234.1-2015 Connection set for conductive charging of electric vehicles - Part 1: General requirements a) Frequency: 50 Hz ± 0.5 Hz; b) AC power voltage: 220V / 380V, allowable deviation ± 5%; c) AC power waveform: sine wave, waveform distortion factor is not greater than 5%; d) Imbalance of AC power system: not more than 5%. 5.1.4 Requirements for test equipment 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 Test load It is recommended to use RLC type load or electronic load. 5.2 General inspection 5.2.1 Visual inspection Visually check that the housing of the charging spot (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 charging connection device) shall be fastened and reliable, without such defects and damages as rust, burr, crack. 5.2.2 Marking inspection Visually check the position and content of the charging spot’s nameplate for correctness and completeness. The content of the nameplate shall comply with 8.1.1 of NB/T 33002-2018. Visually check the correctness and integrity of the charging spot’s wiring, grounding and safety signs. Observe and use a piece of absorbent cotton soaked with distilled water to wipe it 15 rounds in about 15 s; then use a piece of absorbent cotton soaked in gasoline to wipe it for 15 rounds in about 15 s; apply the pressure of about 2 N/cm2 to the absorbent cotton on monitoring system or operation management system as specified by the manufacturer are connected to the test system. During the charging process, the charging spots shall be able to communicate according to the agreed protocol requirements. 5.3.2 Inspection of charging connection device The charging connection device configured for the charging spot shall have certification materials that comply with GB/T 20234.1-2015 and GB/T 20234.2- 2015; or follow the methods as specified in 6.2 of GB/T 34657.1-2017 to double check the power supply socket (connection method A or the connection method B), the structural size of the vehicle plug (connection method C), the plug space size (connection method C). 5.3.3 Lockout device inspection Connect the charging spot to the test system and start charging. During the charging process, perform the test according to the following steps: a) For the charging spot which uses the connection method A or connection method B, when the rated current of the charging spot is more than 16A, the power supply socket shall be equipped with the electronic lockout device with position feedback function. b) The charging connection device is fully connected and starts the charging spot. The voltage value of detection point-1 or detection point-4 shall be within the range allowed for charging. Confirm the effectiveness of the mechanical locking of the power supply interface and / or vehicle interface; check whether the feedback signal of the electronic lock corresponds to the actual lockout state, to confirm the effectiveness of the electronic lockout of the charging spot; by checking whether the mechanical lockout device can be opened, confirm the interlocking effect of the electronic lockout device on the mechanical locking device. c) When the electronic lock is not reliably locked, the charging spot shall not allow charging. During the entire charging process, the electronic lock of the charging spot shall be reliably locked, it shall neither be unlocked with power on, nor be unlocked directly by human hands. d) Within 100ms after the AC power supply circuit is cut off after the normal charging is over, check that the electronic lock shall not be unlocked. e) Check that the electronic lockout device shall have an emergency unlock function. 5.3.4 Test of display function Connect the charging spot to the test system; use short-circuit output or trigger the AC contactor (or similar device)’s feedback signal, let the analog output switch be in the normally closed (cannot be disconnected) or normally open state, start the charging. The charging spot shall not allow charging and there are warnings. 5.4.5 Test of contact current The contact current of the charging spot shall comply with the provisions of 11.2 in GB/T 18487.1-2015. 5.4.6 Test of leakage protection Connect the charging spot to the test system. During the charging process, simulate that the leakage exceeds the protection threshold. The charging spot shall immediately cut off the AC power supply circuit. 5.5 Inspection of charging mode and connection method Visually check that the charging mode used by the charging spot shall comply with the charging mode 3 specified in 5.1 of GB/T 18487.1-2015; the connection method shall adopt either the connection method A, connection B, or connection method C as specified in 3.1.3 of GB/T 18487.1-2015. The charging spot with a rated current greater than 32A shall use the connection method C. 5.6 Inspection of cable management and storage For connection method C, the charging spot shall be equipped with a vehicle plug storage device with the spot, which can be separated from the charging spot or fixed on the charging spot. When the vehicle plug is not used, the vehicle plug shall be stored at 0.5 m ~ 1.5 m above the ground; for charging spots using cables longer than 7.5 m, the free cable length shall not exceed 7.5 m. For products where the vehicle plug storage device is separated from the charging spot, the product manual shall include relevant instructions for the installation location of the vehicle plug storage device. 5.7 Test of internal temperature rise The reference ambient air temperature is 25 °C. Install a temperature measuring element on the measured part of the charging spot. The temperature can be measured by melting particles, change indicators or thermocouples. These measuring elements shall be placed where the influence of the measured temperature is negligible. Close the lid or door; connect the charging spot to the test system; input the rated voltage; set it to operate under the rated load, to make the temperature of each heating element gradually rise to thermal stability. For the definition of thermal stability, refer to 4.8 of GB/T 2421.1-2008. The test of temperature rise shall meet the requirements of Table 2. carry out test. The grounding terminal shall have obvious signs. 5.13 Test of standby power consumption For charging spots with standby function (one machine with dual charging and below), at the rated input voltage, only the status of basic functions such as background communication and status indicators are retained. The standby power consumption of the charging spot shall not be greater than 15 W. 5.14 Controlled guidance test 5.14.1 Test of charge control state Connect the charging spot to the test system and carry out the test in accordance with the method specified in 6.4.2 of GB/T 34657.1-2017. The test results shall meet the requirements of the corresponding conformity assessment. For a multi-charging spot, each vehicle interface shall be tested separately, meanwhile the control guidance function of each interface shall run independently and be completely isolated. 5.14.2 Test of control timing of charging connection Connect the charging spot to the test system and carry out the test according to the method specified in 6.4.3 of GB/T 34657.1-2017. The test results shall meet the requirements of the corresponding conformity assessment. 5.14.3 Test of limit value of control guidance voltage Connect the charging spot to the test system and carry out the test in accordance with the method specified in 6.4.5 of GB/T 34657.1-2017. The test results shall meet the requirements of the corresponding conformity assessment. 5.14.4 Test of continuity of protective earth conductor Connect the charging spot to the test system and carry out the test according to the method specified in 6.4.4.4 of GB/T 34657.1-2017. The test results shall meet the requirements of the corresponding conformity assessment. 5.14.5 Test of control guidance signal abnormality Connect the charging spot to the test system and perform the test in accordance with the methods specified in 6.4.4.1, 6.4.4.2, 6.4.4.3 of GB/T 34657.1-2017. The test results shall meet the requirements of the corresponding conformity assessment. 5.14.6 Test of closure of switch S2 after opening the normal operation or safety of the charging spot, meanwhile the charging spot operates normally after power is applied. b) The charging spot for indoor use shall meet the requirements of IP3X. Push the 2.5 mm diameter burr-free test rod into the opening of the charging spot’s shell at a test force of 3.0 N. The diameter of the test tool cannot pass through any opening of the charging spot. 5.17.2 Test of preventing water from entering Test of preventing water from entering the charging spot’s shell according to the method of GB/T 4208. a) Charging spots for outdoor use shall meet the requirements of IPX4. It can be subjected to swing pipe water spray test or sprinkler water spray test. After the test, check that there is no obvious stagnant water in the charging spot’s shell, or there is water but it does not affect the normal operation or damage the safety of the charging spot, meanwhile the charging spot operates normally after being powered on. 1) Swing pipe water spray test. Place the charging spot under the swing pipe, so that the swing pipe sprays water within ± 180° of the vertical direction; the maximum radius of the swing pipe is 1.6 m. The maximum distance between the charging spot and the swing pipe is 0.2 m. The flow rate of each hole of the swing pipe is 0.07 L/min. The test lasts for 10 min. 2) Spray head water test. Use the sprinkler to perform a water spray test on the charging spot. The water flow rate is 12.5 L/min; the pressure is in the range of 50 kPa ~ 150 kPa. During the test, the pressure shall be kept constant. The sprinkler needs to remove the baffle of the balance weight, so that the charging spot’s shell is exposed to water in all possible directions. The test time is calculated based on the surface area of the charging spot’s shell, which is 1 min/m2, at least 5 min. b) The charging spot for indoor use meets the requirements of IPX2. The charging spot is fixed on the dripping platform. The shell is inclined at 15° from the perpendicular line on two mutually perpendicular planes at four fixed positions. The drip flow is 3 mm/min. The test is continued at each inclined position for 2.5 minutes. After the test, check that there is no obvious water accumulation, or there is water but it does not affect the normal operation or damage the safety of the charging spot, meanwhile the charging spot operates normally after being powered on. 5.18 Salt spray test Perform the test according to the method of GB/T 2423.17-2008. Before the 5.21 High temperature test Place the charging spot in an environmental test box. According to the requirements of GB/T 2423.2-2008 "Test Bb: High temperature test requirements for temperature gradient of non-heat dissipation test sample”, at the test temperature of 50 °C. After the environmental test box reaches the test temperature and it is stable, set the charging spot to run at the rated load; the display function, input function, communication function of the charging spot shall be normal. After the test temperature continues for 2 hours, the charging control guidance function, display function, input function, communication function, protection function of the charging spot shall be normal at the test environment. 5.22 Cyclic damp heat test Place the charging spot in the environmental test box. According to the requirements of GB/T 2423.4-2008 "Test Db: Cyclic damp heat (12h + 12h cycle)”, at the test temperature of 40 °C and 2 cycles, at 2 h before the end of the damp heat test, carry out retest of the insulation resistance and dielectric strength. The insulation resistance shall not be less than 1 MΩ; apply the measurement voltage at 75% of the required dielectric strength. After the test, return to normal atmospheric conditions in the environmental box. After power on, the charging control guidance, display function, input function, communication function, protection function of the charging spot shall be normal. 5.23 Electromagnetic compatibility test 5.23.1 Overview The charging spot shall meet the electromagnetic compatibility test, immunity requirements and emission requirements as specified in this Chapter. All EMC test items as specified in this Chapter can be tested in any order. The EMC requirements in this Chapter are based on the port of the charging spot and the installation and use environment. Charging spot’s ports are mainly divided into shell ports, AC power input ports, signal/control ports, wired network ports, conductive power transmission ports (hereinafter referred to as CPT ports). The definition of each port is detailed in 3.1 of GB/T 18487.2-2017. The manufacturer shall state the installation and use environment of the charging spot. When the manufacturer does not specify the environment in which the charging spot is intended to be used, the most stringent emission and immunity tests shall be performed, that is, the lowest emission limit and the highest level of immunity test shall be used. 5.23.2 Test configuration of charging spot All tests shall use typical charging spots and communication cables (at the CPT ......


NB/T 33008.2-2013 NB ICS 29.200 K 81 Record No.. 43509-2014 Energy Industry Standard of the People’s Republic of China Inspection and Test Specifications for Electric Vehicle Charging Equipment - Part 2. A.C. Charging Spot APPROVED ON. NOVEMBER 28, 2013 IMPLEMENTED ON. APRIL 1, 2014 Issued by. National Energy Administration Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative References ... 4  3 Terminologies and Definitions... 5  4 Inspection Rules ... 5  5 Test Methods ... 7  Foreword This Standard was proposed by China Electricity Council. This Standard shall be under the jurisdiction of Technical Committee on Electric Vehicle Charging Infrastructure of Standardization Administration of Energy Industry. Drafting organizations of this Standard. State Grid Corporation of China, State Grid Electric Power Research Institute, XJ Group Corporation, China Electric Power Research Institute, Zhejiang Electric Power Corporation and North China Grid Co., Ltd. Chief drafting staffs of this Standard. Su Shengxin, Wei Qi, Jia Junguo, Wu Bin, Xu Shiming, Ni Feng, Li Yanman, Ye Jiancheng, Sang Lin, Yao Guoyuan, Dai Zhong, Qi Jiajin, Han Hailun, Yan Hui, Yang Tianlin, Lu Yi, Ye Xin, Xi Yangyang, Dong Chen and Ma Yanhua. During the implementing this Standard, the relevant opinions or advices, whenever necessary, can be posted or passed onto the Standardization Management Center of the China Electricity Council (No. 1, 2nd Lane, Baiguang Road, Beijing, 100761). Inspection and Test Specifications for Electric Vehicle Charging Equipment - Part 2. A.C. Charging Spot 1 Scope This Standard specifies the test conditions, test instruments, inspection rules, inspection items and test methods of electric vehicle A.C charging spot (hereinafter referred to as "A.C. charging spot"). This Standard is applicable to the type test, exit-factory inspection and receiving acceptance. 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 normative document (including any amendments) applies. GB/T 2423.1-2008 Environmental Testing for Electric and Electronic Products - Part 2. Test Methods - Test A. Cold (IEC 60068-2-1.2007, IDT) GB/T 2423.2-2008 Environmental Testing for Electric and Electronic Products - Part 2. Test Methods - Test B. Dry Heat (IEC 60068-2-2.2007, IDT) GB/T 2423.3-2006 Environmental Testing for Electric and Electronic Products - Part 2. Testing Methods - Test Cab. Damp Heat Steady State (IEC 60068-2-78. 2001, IDT) GB 4208 Degrees of Protection Provided by Enclosure (IP Code) (IEC 60529, IDT) GB/T 17626.2 Electromagnetic Compatibility - Testing and Measurement Techniques - Electrostatic Discharge Immunity Test (IEC 61000-4-2, IDT) GB/T 17626.3 Electromagnetic Compatibility - Testing and Measurement Techniques - Radiated Radio-frequency Electromagnetic Field Immunity Test (IEC 61000-4-3, IDT) GB/T 17626.4 Electromagnetic Compatibility - Testing and Measurement Techniques - Electrical Fast Transient/Burst Immunity Test (IEC 61000-4-4, IDT) GB/T 17626.5 Electromagnetic Compatibility - Testing and Measurement Techniques - Surge Immunity Test (IEC 61000-4-5, IDT) GB/T 17626.11 Electromagnetic Compatibility - Testing and Measurement Techniques - Voltage Dips, Short Interruptions and Voltage Variations Immunity Tests (IEC 61000-4-11, IDT) GB/T 18487.3-2001 Electric Vehicle Conductive Charging System - A.C./D.C. Electric Vehicle Charging Station GB/T 20234.2-2011 Connection Set of Conductive Charging for Electric Vehicles - Part 2. AC Charging Coupler GB/T 29317-2012 Terminology of Electric Vehicle Charging/Battery Swap Infrastructure NB/T 33002-2010 Specification for Electric Vehicle A.C Charging Spot 3 Terminologies and Definitions For the purpose of this Standard, the terminologies and definitions defined in GB/T 29317-2012 apply. 4 Inspection Rules 4.1 Product test is classified into type test, exit-factory inspection and receiving acceptance. 4.2 Under the following conditions, type test must be carried out on products. a) For products that art newly launched into production (including those in transfer-plant production), type test shall be carried out before production identification; b) For continuously produced products, type test shall be carried out every 3-year on those products that have passed the exit-factory acceptance; c) Where the design, process or main component changes that affect the product performance, type test shall be carried out before putting into production; d) For products halting for more than two years, type test shall be carried out before resuming the production. 4.3 Each product shall be subject to exit-factory inspection, and can only be measured and standard test atmosphere conditions, namely. a) Environment temperature. +15~+35°C; b) Relative humidity. 45%~75%; c) Atmospheric pressure. 86~106kPa. The standard atmospheric environment conditions shall be relatively stable during the test for each item. 5.1.3 Test power supply conditions The power supply conditions during the test are. a) Frequency. 50±0.5Hz; b) A.C. power supply voltage. 220V/380V with permissible deviation of ±5%; c) AC power supply waveform. sine wave with waveform distortion factor not greater than 5%; d) The unbalance factor of AC power supply system is not greater than 5%. 5.1.4 Test instrument requirements Unless otherwise specified, the precisions of all instruments and apparatus used during the test shall meet the following requirements. a) The precision of common instrument shall be selected according to Table 2 based on the measured error grade; b) The error of instrument measuring the temperature is not greater than ±1°C; c) Instrument measuring the time. where the measuring time is greater than 1s, the relative error is not greater than 0.5%; where the measuring time is less than 1s, the relative error is not greater than 0.1%; d) All test instruments and apparatus shall be within the validity of measurement and certification. Table 2 Selection for Precision of Test Instrument Error < 0.5% 0.5%~1.5% 1.5%~5% 7.5% Instrument precision 0.1 grade 0.2 grade 0.5 grade 1.0 grade Digital instrument precision 6.5 digits 5.5 digits 4.5 digits 4.5 digits 5.1.5 Test load RLC load or electronic load may be adopted for the test. 5.2 Charging connection mode inspection Inspection for the charging connection mode of A.C. charging spot shall meet the requirements specified in Article 7.3.1 in NB/T 33002-2010. 5.3 Spot inspection Spot inspection for the A.C. charging spot shall meet the requirements specified in Article 7.3.2 in NB/T 33002-2010. 5.4 Electrical module inspection Inspection for the electrical module in A.C. charging spot shall meet the following requirements. a) The charging spot supplied by the same feeder shall be equipped with cable terminal block for cable connection. b) The residual current protection device shall be installed on the incoming side of the power supply cable. 5.5 Energy meter [watt-hour meter] inspection Inspection for the energy meter in A.C. charging spot shall meet the following requirements. a) The energy meter shall be equipped with site verification interface; b) Other equipment irrelevant to measurement shall not be connected between the energy meter and power supply socket. 5.6 Insulation performance test 5.6.1 Insulation resistance test For the non-electrical connection of A.C. charging spot, DC voltage is imposed between energized circuits or between each independent energized circuit and the ground (metal shell) according to the requirements specified in Table 3, and the insulation resistance is not less than 10MΩ. 5.6.2 Dielectric strength test For the non-electrical connection of A.C. charging spot, 1min power-frequency AC voltage is imposed between energized circuits or between each independent energized circuit and the ground (metal shell) according to the requirements specified Start/stop the A.C. charging spot and inspect the A.C. charging spot under various states during charging process, it shall be able to display relevant information, and the display characters shall be clear, complete and free of defect. 5.10.2 Input function test Manually set the charging parameters of A.C. charging spot, and inspect the charging spot, it shall be able to correctly respond. 5.10.3 Communication function test A.C. charging spot shall be provided with communication interface to the superior monitoring system; the A.C. charging spot, supported by corresponding software, shall be able to realize remote operation and charging control. 5.11 Control and guidance test Control and guidance test shall be carried out on A.C. charging spot equipped with the control and guidance circuit as specified in Appendix A in GB/T 20234.2-2011 according to the requirements of relevant standard. 5.12 Safety requirement test 5.12.1 Over-current protection function test Manually simulate an output over-current failure for A.C. charging spot output under charging operation state, the A.C. ch... ......

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