BS EN 61851-1-2001 pdf download

08-15-2021 comment

BS EN 61851-1-2001 pdf download.Electric vehicle conductive charging system Part 1 : General requirements.
6.2 EV charging modes
There are four possible modes of charging, as follows:
Mode I charging: connection of the EV to the a.c. supply network (mains) utilizing standardized socket-outlets, rated up to 16 A. at the supply side, single-phase or three-phase. and utilizing phase(s), neutral and protective earth conductors. The use of mode 1 charging depends on the presence of a residual current device (RCD) on the supply side. Where the presence of an RCD on the supply side can not be ensured by national codes, mode 1 charging is not permissible.
NOTE 1 In some countries, mode 1 charging may be prohibited by nahonal codes.
NOTE 2 A standardized socket-outlet Is one wtiich meets the requirements of any IEC and/or national standard.
NOTE 3 In France. Germany and Italy, the limitation to 16 A for mode 1 chargIng Is not applicable.
Mode 2 charging: connection of the EV to the a.c. supply network (mains) utilizing standardized socket-outlets, single-phase or three-phase, and utilizing phase(s), neutral, and protective earth conductors together with a control pilot conductor between the EV and the plug or in-cable control box.
Mode 3 charging: direct connection of the EV to the a.c. supply network (mains) utilizing dedicated EVSE where the control pilot conductor extends to equipment permanently connected to the a.c. supply network (mains).
Mode 4 charging: indirect connection of the EV to the a.c. supply network (mains) utilizing an off-board charger where the control pilot conductor extends to equipment permanently connected to the a.c. supply.
6.3 Types of EV connection (cases A,, B, and C)
The connection of EVs may be carried out in one or more of three different ways:
Case “A” connection: connection of an EV to the a.c. supply network (mains) utilizing a supply cable and plug permanently attached to the EV (see figure 1).
Case “B” connection: the connection of an EV to the a.c. supply network (mains) utilizing a detachable cable assembly with a vehicle connector and a.c. supply equipment (see figure 2).
Case “C” connection: the connection of an EV to the ac. supply network (mains) utilizing a supply cable and vehicle connector permanently attached to the supply equipment (see figure 3). Only case “C” is allowed for mode 4 charging.
6.4 Functions provided in each mode of charging
6.4.1 Mandatory functions
6.4.1.1 Verification that the vehicle is properly connected
The EVSE shall be able to determine that the connector is properly Inserted In the vehicle Inlet and properly connected to an EV.
NOTE Separate means to prevent (he vehicle from being driven off until the connector is adequately removed from the inlet are under consideration.
6.4.1.2 Continuous protective earth conductor integrity checking
The vehicle equipment earth connection shall provide a return path for the control pilot current. Equipment earth continuity between the EVSE and the vehicle shall be continuously verified by measuring the current flow on the pilot line.
6.4.1.3 Energization of the system
If the control pilot circuit is established correctly, it shall allow energization of the system. Energization may also be subject to other conditions being fulfilled.
6.4.1.4 De-energlzation of the system
If the control pilot circuit is interrupted, the power supply to the cable assembly shall be interrupted but the control circuit may remain energized.
6.4.1.5 Selection of charging rate
A manual or automatic means shall be provided to ensure that the charging rate shall not exceed the rated capacity of the a.c. supply network (mains).
6.4.2 Optional functions
6.4.2.1 Determination of ventilation requirements during charging
If additional ventilation is required during charging, charging shall only be allowed if such
ventilation is provided.
6.4.2.2 Detectionladjustment of the real time available load current of the supply equipment
Means shall be provided to ensure that the charging rate shall not exceed the real time available load current of the supply equipment.
NOTE This function may be mandatory under certain national codes.BS EN 61851-1-2001 pdf download.

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