GB/T 40820-2021 PDF English
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GB/T 40820-2021: Residual direct current detecting device (RDC-DD) to be used for mode 3 charging of electric vehicles
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT40820-2021
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.120.50
CCS K 31
GB/T 40820-2021 / IEC 62955.2018
Residual Direct Current Detecting Device (RDC-DD)
to be Used for Mode 3 Charging of Electric Vehicles
(IEC 62955.2018, IDT)
Issued on. OCTOBER 11, 2021
Implemented on. MAY 01, 2022
Issued by. State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword... 4
1 Scope... 6
2 Normative References... 7
3 Terms, Definitions and Symbols... 8
4 Classification of RDC-DD (RDC-MD, RDC-PD)... 9
5 Characteristics of RDC-DDs... 12
6 Marking and Other Product Information... 17
7 Standard Conditions for Operation in Service and for Installation... 19
8 Requirements for Construction and Operation... 20
9 Tests... 33
Annex A (Normative) Test Sequence and Number of Samples to be Submitted for
Testing Purposes... 97
Annex B (Normative) Determination of Clearances and Creepage Distances... 102
Annex C (Normative) Arrangement for the Detection of the Emission of Ionized Gases
during Short-Circuit Tests... 109
Annex D (Normative) Routine Tests... 112
Annex E (Informative) Methods for Determination of Short-Circuit Power-Factor 113
Annex F (Informative) Examples of Terminal Designs... 115
Annex G (Informative) Correspondence between ISO and AWG Copper Conductors
... 119
Annex H (Informative) SCPDs for Short-Circuit Tests... 120
Annex I (Normative) Particular Requirements for RDC-DDs with Screwless Type
Terminals for External Copper Conductors... 122
Annex J (Normative) Particular Requirements for RDC-DDs with Flat Quick-Connect
Terminations... 131
Annex K (Normative) Specific Requirements for RDC-DDs with Screw-Type
Terminals for External Untreated Aluminium Conductors and with Aluminium Screw-
Type Terminals for Use with Copper or with Aluminium Conductors... 139
Annex L (Informative) Examples of RDC-DD according to Construction Classification
... 150
Annex M (Normative) Additional Requirements and Tests for RDC-MDs according to
Classification 4.1.1.2 Consisting of an RDC-M-Unit Designed to be Assembled on Site
together to a Separate Switching Protective Device... 152
Annex N (Normative) Additional Requirements and Tests for RDC-MDs according to
Classification 4.1.1.3 Consisting of an RDC-MD Module Electrically Coupled to a
Separate Switching Device or a Protective Device... 157
Annex O (Normative) RDC-PDs with Integrated DC, Pulsating DC (Type A) and 6 mA
DC Detection, Evaluation and Mechanical Switching in one Unit according to
Classification 4.1.2... 162
Bibliography... 165
Foreword
This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for
Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents.
This Document used translation method to equivalently adopt IEC 62955.2018 Residual Direct
Current Detecting Device (RDC-DD) to be Used for Mode 3 Charging of Electric Vehicles.
The Chinese documents that have a consistent correspondence with the international documents
normatively cited in this document are as follows.
--- GB/T 2424.2-2005 Environment Tests for Electric and Electronic Products - Guidance
for Damp Heat Tests (IEC 60068-3-4.2001, IDT);
--- GB/T 4208-2017 Degrees of Protection Provided by Enclosure (IP Code) (IEC
60529.2013, IDT);
--- GB 4343.1-2018 Electromagnetic Compatibility Requirements for Household
Appliances, Electric Tools and Similar Apparatus - Part 1.Emission (CISPR 14-1.2011,
IDT);
--- GB/T 5169.10-2017 Fire Hazard Testing for Electric and Electronic Products - Part 10.
Glowing/Hot-Wire Based Test Methods - Glow-Wire Apparatus and Common Test
Procedure (IEC 60695-2-10.2013, IDT);
--- GB/T 16895 (all parts) Low-Voltage Electrical Installations [IEC 60364 (all parts)];
--- GB/T 16916.1-2014 Residual Current Operated Circuit-Breakers Without Integral
Overcurrent Protection for Household and Similar Uses (RCCB) - Part 1.General Rules
(IEC 61008-1.2012, MOD);
--- GB/T 16917.1-2014 Residual Current Operated Circuit-breakers with Integral
Overcurrent Protection for Household and Similar Uses (RCBOs) - Part 1.General Rules
(IEC 61009-1.2012, MOD);
--- GB/T 18499-2008 Residual Current Operated Protective Devices (RCD) for Household
and Similar Use - Electromagnetic Compatibility (IEC 61543.1995, IDT).
This Document made the following editorial modifications.
--- Move the informative references of IEC 60112 and IEC 60664-3 from Clause 2 to
Bibliography;
--- Supplement the cross-sectional area of the connectable copper conductors with rated
currents of 63A to 125A omitted in Table 7, which is consistent with the relevant
standards of residual current protection electrical apparatus;
--- Modify the error of "RDC-MD" into "RDC-DD" in 9.9.3;
--- Modify the error of "after the test of 9.10.3" into "after the test of 9.10.2" in 9.10.3;
--- Modify the error reference of "9.11.2.1 f) i)" into "9.11.2.1 f) 1)" in 9.11.2.1 f) 2);
---Modify the error of "5.1.1" into "5.1.1 in IEC 61543.1995+AMD1.2004" in Table 19 of
9.21.2;
--- Modify the error reference of "see J.3.6" into "see I.3.6" in I.1 of Annex I;
--- Modify the error of "Table 5" into "Table 7" in Table K.2;
--- Modify the error of "performance of RCCB under short-circuit conditions" into
"performance of RDC-PD under short-circuit conditions" in Table O.1.
Please note some contents of this Document may involve patents. The issuing agency of this
Document shall not assume the responsibility to identify these patents.
This Document was proposed by China Electrical Equipment Industry Association.
This Document shall be under the jurisdiction of National Technical Committee on Low-
Voltage Apparatus of Standardization Administration of China (SAC/TC 189).
Drafting organizations of this Document. Shanghai Electrical Apparatus Research Institute;
NOARK Electrics (Shanghai) Co., Ltd.; Shanghai Liangxin Electrical Co., Ltd.; Schneider
Electric (China) Co., Ltd. Shanghai Branch; Qingdao Topscomm Communication INC.;
Suzhou ELE Electrical Apparatus Manufacturing Co., Ltd.; Guizhou Taiyong-Changzheng
Technology Co., Ltd.; Shanghai TILVA Certification Technology Co., Ltd.; Shanghai Shengwei
Electronic & Technology Co., Ltd.; and Zhongshan Kaper Electrical Co., Ltd.
Chief drafting staffs of this Document. Wang Yuxuan, Li Renjie, Wang Bangle, Xu Jinchao, Ma
Feng, Wang Jianhua, Li Chengli, He Guibing, Dong Tianshuai, and Zou Jianhua.
Residual Direct Current Detecting Device (RDC-DD)
to be Used for Mode 3 Charging of Electric Vehicles
1 Scope
This Document specifies the classification, characteristics, marking, conditions of use and
installation, technical requirements for structure and operation, and corresponding tests of
residual direct current detecting device (RDC-DD) to be used for Mode 3 charging of electric
vehicles.
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 edition cited
applies. For undated references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 2423.4-2008 Environmental Testing for Electric and Electronic Products - Part 2.
Test Method - Test Db. Damp Heat, Cyclic (12h+12h Cycle) (IEC 60068-2-30.2005,
IDT)
3 Terms, Definitions and Symbols
Monitoring device capable of 6 mA DC residual current detection and mechanical switching.
Protective device with integrated AC, pulsating DC and 6 mA DC detection, evaluation and
mechanical switching.
4 Classification of RDC-DD (RDC-MD, RDC-PD)
RDC-M-unit capable of 6mA DC residual current detection and evaluation mechanically
coupled to a separate protective device.
5 Characteristics of RDC-DDs
The rated operational voltage (hereafter referred to as "rated voltage") of an RDC-DD is the
value of voltage, assigned by the manufacturer, to which its performance is referred.
The rated impulse withstand voltage of an RDC-DD shall be equal to or higher than the standard
values of rated impulse withstand voltage given in Table 4.
6 Marking and Other Product Information
Due to physical reasons, for pulsating DC residual currents, only limited selectivity to upstream
type A or type F RCDs with a rated residual current of 30 mA can be achieved. For this reason,
related information shall be provided by the manufacturer.
7 Standard Conditions for Operation in Service and for Installation
RDC-DDs shall be installed in accordance with the manufacturer's instructions.
RDC-DDs complying with this document are intended for environment with pollution degree
2, i.e., normally, only non-conductive pollution occurs; occasionally, however, a temporary
conductivity caused by condensation may be expected.
8 Requirements for Construction and Operation
The protective conductor of the installation shall not become live in such a way that a dangerous
touch voltage is created when the RDC-DD is operated. A standing current in the PE up to the
limit of 1 mA is accepted with a touch voltage limited not exceeding dangerous levels according
to IEC 60364 series and IEC 60479 series of standards.
9 Tests
The RDC-DD is mounted individually according to manufacturer's instructions and in free air,
at an ambient temperature between 20°C and 25°C, unless otherwise specified, and is protected
against undue external heating or cooling.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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