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Which of the following standards is used for DC charging, Mode 4, voltage range 200-450 V?

  • A.IEC 61851
  • B.IEC 61855
  • C.IEC 61888
  • D.IEC 61887

Answer: A

Mode 4 is the DC fast charging mode, in which an off board charger supplies DC power to the vehicle. The standard of the International Electrotechnical Commission for conductive charging of electric vehicles, with the modes and the DC charging, is IEC 61851 (its Part 23 covers DC charging stations).


The other numbers (61855, 61888 and 61887) are not the standards for electric vehicle charging. The answer is IEC 61851, option A.

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