1 Scope
This Standard together with GB/T 18487.1 gives the electric vehicle requirements for conductive connection to an a.c. or d.c. supply. When the electric vehicle is connected to the supply network, for a.c. voltages according to GB 156-1993 up to 660 V and for d.c. voltages up to 1 000 V,.
This Standard does not cover Class II vehicles.
This Standard does not cover all safety aspects related to maintenance.
This Standard is not applicable to trolley buses, rail vehicles, industrial trucks and vehicles designed primarily to be used off-road.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
GB 156-1993 Standard Voltages
GB 4343-1995 Limits and Methods of Measurement of Radio Disturbance Characteristics of Electrical Motor-operated and Thermal Appliances for Household and Similar Purposes, Electric Tools and Similar Electric Apparatus (eqv CISPR 14:1993)
GB/T 6113.1-1995 Specifications for Radio Disturbance and Immunity Measuring Apparatus (eqv CISPR 16-1:1993)
GB/T 6113.2-1998 Methods of Measurement of Radio Disturbance and Immunity (eqv CISPR 16-2:1996)
GB 16895.3-1997 Electrical installations of buildings – Part 5: Selection and erection of electrical equipment – Chapter 54: Earthing arrangements and protective conductors (idt IEC 60364-5-54:1980)
GB 16895.5-2000 Electrical Installations of Buildings – Part 4: Protection for Safety – Chapter 43: Protection Against Overcurrent (idt IEC 60364-4-43: 1990)
GB/T 16935.1-1997 Insulation Coordination for Equipment within Low-voltage Systems – Part 1: Principles, Requirements and Tests (idt IEC 60664-1: 1992)
GB 17625.1-1998 The Limits for the Harmonic Current Emissions Caused by Low-voltage Electrical and Electronic Equipments (Equipment Input Current ≤ 16A per phase) (eqv IEC 61000-3-2: 1995)
GB/T 17626.1-1998 Electromagnetic Compatibility – Testing and Measurement Techniques – Overview of Immunity Tests (idt IEC 61000-4-1: 1992)
GB/T 17626.2-1998 Electromagnetic Compatibility – Testing and Measurement Techniques – Electrostatic Discharge Immunity Test (idt IEC 61000-4-2:1995)
GB/T 17626.3-1998 Electromagnetic Compatibility – Testing and Measurement Techniques – Radiated, Radio-frequency, Electromagnetic Field Immunity Test (idt IEC 61000-4-3: 1995)
GB/T 17626.4-1998 Electromagnetic Compatibility – Testing and Measurement Techniques – Electrical Fast Transient/Burst Immunity Test (idt IEC 61000-4-4: 1995)
GB/T 17626.5-1999 Electromagnetic Compatibility – Testing and Measurement Techniques – Surge Immunity Test (idt IEC 61000-4-5: 1995)
GB/T 17626.11-1999 Electromagnetic Compatibility – Testing and Measurement Techniques – Voltage Dips, Short Interruptions and Voltage Variations Immunity Tests (idt IEC 61000-4-11: 1994)
GB/T 17627.1-1998 High-voltage Test Techniques for Low-voltage Equipment – Part 1: Definitions, Test and Procedure Requirements (eqv IEC 1180-1: 1992)
IEC 60364-4-443:1995 Electrical Installations of Buildings – Part 4: Protection for Safety – Chapter 44: Protection Against Overvoltages – Section 443 – Protection Against Overvoltages of Atmospheric Origin or due to Switching
IEC 61000-2-2:1990 Electromagnetic compatibility (EMC) – Part 2: Environment – Section 2: Compatibility Levels for Low-frequency Conducted Disturbances and Signalling in Public low-voltage Power Supply Systems
3 Definitions
For this Standard, definitions given in GB/T 18487.1 apply.
Definitions of this Standard are under consideration.
4 General Rules
The electric vehicle shall be connected to the EV supply equipment so that in normal conditions of use the conductive energy transfer function operates safely indoor or outdoor, and no danger to the person and ambient environment.
In general, this is achieved by fulfilling the relevant requirements specified in this Standard, and compliance is checked by carrying out all relevant tests.
5 Standard Conditions for Operation in Service
The rated value of the vehicle a.c. supply voltage is up to 660 V (see GB 156). The vehicle systems shall operate correctly within ± 10 % of the standard nominal voltage. The rated value of the frequency is 50 Hz ± 1 Hz.
The rated value of the d.c. supply is up to 1 000 V.
The ambient temperature range during charging may be between -30 ℃ and +50 ℃.
Note: Other operating temperature range is applicable, and the value under consideration shall in accordance with ISO Standard.
6 General Requirements on Tests
6.1 All tests in this Standard are type tests. No routine tests are specified.
6.2 Unless otherwise specified, type tests shall be carried out on a single specimen as delivered and connected in accordance with the manufacturer's instructions.
6.3 Unless otherwise specified, all other tests shall be carried out in the order of the clauses and subclauses in this Standard.
6.4 The tests shall be carried out with the specimen, or any movable part of it, placed in the most unfavourable position which may occur in normal use.
6.5 Unless otherwise specified, the tests shall be carried out in a draught-free location and at an ambient temperature of 20 ℃ ± 5 ℃.
6.6 The characteristics of the test voltages shall comply with GB/T 17627.1.
7 Electrical Safety
7.1 General
General provisions for electrical safety are dealt with in GB/T 18487.1. In addition, the following requirements apply.
7.2 Earthing connection and electric vehicle continuity
All exposed conductive parts of the electric vehicle which could be connected to the supply voltage source in case of a fault shall be connected together in such a manner that they conduct electricity properly, so as to conduct potential fault currents to main earth.
The following test is intended to check the electrical continuity between exposed conductive parts and the earth circuit.
Continuity shall be checked with a 16 A d.c supply. Current source that generates a maximum test voltage of 12 V.
The value of the resistance between any exposed conductive part and the earth circuit connection shall not exceed 0.1 Ω.
Note: Test procedure shall be in accordance with the activities of ISO.
7.3 Detection of the electrical continuity of the protective conductor
A protective earth conductor shall be provided to establish an equipotential connection between the earthing terminal of the supply and the exposed conductive parts of the vehicle. This protective conductor shall be of sufficient rating to satisfy the requirements of GB 16895.3.
While charging in modes 2, 3 and 4, the electrical continuity of this protective conductor shall be permanently monitored by the electric vehicle supply equipment. In case of loss of electrical continuity of the protective conductor, the supply shall be switched off.
Content
Foreword II
IEC Foreword III
1 Scope
2 Normative References
3 Definitions
4 General Rules
5 Standard Conditions for Operation in Service
6 General Requirements on Tests
7 Electrical Safety
8 Electrical Characteristics of the Vehicle
9 Electromagnetic Compatibility
10 Functional Requirements
11 Electric Vehicle Inlet or Plug (Case A) Requirements
12 Marking and Instructions
Appendix A (Informative) Bibliography
