BS EN IEC 61851-25:2021
$215.11
Electric vehicle conductive charging system – DC EV supply equipment where protection relies on electrical separation
Published By | Publication Date | Number of Pages |
BSI | 2021 | 72 |
This document applies to the DC EV supply equipment for charging electric road vehicles with a rated supply voltage of up to 480 V AC or up to 600 V DC, with rated output voltage not exceeding 120 V DC and output currents not exceeding 100 A DC.
This document provides the requirements for the DC EV supply equipment where the secondary circuit is protected from the primary circuit by electrical separation.
Requirements for bi-directional power flow are not covered in this document.
This document also provides the requirements for the control and the communication between DC EV supply equipment and an EV.
This document also applies to DC EV supply equipment supplied from on-site storage systems.
The aspects covered in this document include:
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characteristics and operating conditions of the DC EV supply equipment;
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specification of the connection between the DC EV supply equipment and the EV;
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requirements for electrical safety for the DC EV supply equipment.
Additional requirements can apply to equipment designed for specific environments or conditions, for example:
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DC EV supply equipment located in hazardous areas where flammable gas or vapour and/or combustible materials, fuels or other combustible, or explosive materials are present;
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DC EV supply equipment designed to be installed at an altitude of more than 2 000 m;
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DC EV supply equipment intended to be used on-board ships.
Requirements for electrical devices and components used in DC EV supply equipment are not included in this document and are covered by their specific product standards.
This document does not apply to:
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safety aspects related to maintenance;
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charging of trolley buses, rail vehicles, industrial trucks and vehicles designed primarily for use off-road;
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equipment on the EV;
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EMC requirements for equipment on the EV while connected, which are covered in IEC 61851-21-1;
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charging the RESS off-board the EV.
NOTE In the following countries electrical separation can only be handled by skilled people: CH
PDF Catalog
PDF Pages | PDF Title |
---|---|
2 | undefined |
5 | Annex ZA(normative)Normative references to international publications with their corresponding European publications |
7 | English CONTENTS |
9 | FOREWORD |
11 | INTRODUCTION |
12 | 1 Scope |
13 | 2 Normative references 3 Terms and definitions |
15 | 4 General requirements |
16 | 5 Classification 6 Charging modes and functions |
21 | Tables Table 1 – Normal shutdown events and conditions Table 2 – Error shutdown events and conditions |
22 | 7 Communications |
23 | 8 Protection against electric shock |
24 | 9 Conductive electrical interface requirements |
25 | 10 Requirements for adaptors 11 Cable assembly requirements |
26 | 12 EV supply equipment constructional requirements and tests |
29 | Figures Figure 1 – Measuring network for touch current evaluation weighted for perception or reaction |
31 | 13 Overload and short-circuit protection |
32 | 14 Automatic reclosing of protective devices 15 Emergency switching or disconnect (optional) 16 Marking and instructions |
33 | Figure 2 – Example of warning label |
34 | Annex AA (normative) Interface between DC EV supply equipment and EV Table AA.1 – Voltage of control pilot circuit |
36 | Figure AA.1 – Interface circuit for energy transfer control showing isolation barriers Table AA.2 – Parameter values for interface circuit |
37 | Annex BB (normative)Level, timing and tolerance of DC output current and DC output voltage |
38 | Figure BB.1 – Step response for constant value control |
39 | Table BB.1 – Requirements for the output response performance of DC EV supply equipment |
40 | Figure BB.2 – Example of DC output current flow controlled by the DC EV supply equipment and the corresponding terminal voltage using a simple battery model |
41 | Figure BB.3 – Example of current limiting followed by voltage limiting for resistive load |
42 | Table BB.2 – Current ripple limit of DC EV supply equipment |
43 | Annex CC (normative)Description of test equipment, test reporting and test environment Figure CC.1 – Example of test circuit for DUT using a computer and external EV simulation circuit |
44 | Figure CC.2 – Example of test load |
46 | Figure CC.3 – Operation points |
47 | Annex DD (normative)Compliance tests Table DD.1 – Correspondence between requirements and test descriptions |
48 | Table DD.2 – Initial switch and parameter values for a normal start-up sequence |
51 | Table DD.3 – The test value for control pilot circuit |
54 | Table DD.4 – Shutdown requirements |
56 | Annex EE (normative)Energy transfer process and communication Table EE.1– Energy transfer state of DC EV supply equipment |
58 | Figure EE.1 – State transition diagram of charging process |
59 | Figure EE.2 – Sequence diagram of energy transfer |
62 | Annex FF (normative)Digital communication for controlof energy transfer Figure FF.1 – Transmission cycle Table FF.1 – Physical/data link layer specification |
64 | Table FF.2 – Received parameters during energy transfer (1 of 3) |
67 | Table FF.3 – Transmitted parameters during DC charging (1 of 2) |
70 | Bibliography |