IEC 61851-25-2020 Electric vehicle conductive charging system – Part 25: DC EV supply equipment where protection relies on electrical separation

IEC 61851-25-2020 Electric vehicle conductive charging system – Part 25: DC EV supply equipment where protection relies on electrical separation. 4 General requirements Clause 4 of IEC 61 851 -1 :201 7 is applicable. 5 Classification Clause 5 of IEC 61 851 -1 :201 7 is applicable, except as follows. 5.1.2 Characteristics of power supply output Replacement: The EV supply equipment shall be classified as DC EV supply equipment. 5.6 Protection against electric shock Subclause 5.6 of IEC 61 851 -1 :201 7 is not applicable. 5.7 Charging modes Subclause 5.7 of IEC 61 851 -1 :201 7 is not applicable. 6 Charging modes and functions Clause 6 of IEC 61 851 -1 :201 7 is applicable, except as follows. 6.1 General Replacement: Clause 6 describes the functions for energy transfer to EVs. 6.2 Charging modes Subclause 6.2 of IEC 61 851 -1 :201 7 is not applicable. 6.3 Functions provided in Mode 2, 3 and 4 Subclause 6.3 of IEC 61 851 -1 :201 7 is replaced by the following: 6.3 Mandatory functions 6.3.1 General The DC EV supply equipment shall supply a DC output current to the EV in accordance with the requested DC output current parameter from the EV, subject to the requirements of the mandatory functions as indicated below. NOTE The DC EV supply equipment acts as a slave to the EV. Further details are given in Annex AA, Annex BB and Annex EE. The following functions shall be provided by the DC EV supply equipment: • verification that the EV is properly connected to the DC EV supply equipment in accordance with 6.3.2; • verification of the latching of the vehicle coupler in accordance with 6.3.3; • latching and unlatching of the vehicle coupler in accordance with 6.3.4; • communication with the vehicle in accordance with 6.3.5; • monitoring of the continuity of the control pilot circuit in accordance with 6.3.6; • verification function before energy transfer in accordance with 6.3.7; • energization and control of the power supply to the EV in accordance with 6.3.8; • protection against overvoltage in accordance with 6.3.9; • de-energization of the power supply to the EV in accordance with 6.3.1 0; • shutdown of DC EV supply equipment in accordance with 6.3.1 0.2, 6.3.1 0.3 and 6.3.1 0.4. Values, timing and tolerances for the DC output current and the DC output voltages shall be tested in accordance with...