IEC 61851-23:2014, together with IEC 61851-1:2010, gives the requirements for d.c. electric vehicle (EV) charging stations, herein also referred to as 'DC charger', for conductive connection to the vehicle, with an a.c. or d.c. input voltage up to 1 000 V a.c. and up to 1 500 V d.c. according to IEC 60038. It provides the general requirements for the control communication between a d.c. EV charging station and an EV. The requirements for digital communication between d.c. EV charging station and electric vehicle for control of d.c. charging are defined in IEC 61851-24.
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DIN SPEC 70121:2012
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EN 60950-1:2006/A1:2010 Information technology equipment - Safety - Part 1: General requirements
DIN SPEC 70121:2012
EN 60950-1:2006 Information technology equipment - Safety - Part 1: General requirements
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EN 61851-1:2011 Electric vehicle conductive charging system - Part 1: General requirements
EN 61851-24:2014 Electric vehicle conductive charging system - Part 24: Digital communication between a d.c. EV charging station and an electric vehicle for control of d.c. charging
EN 62052-11:2003 Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 11: Metering equipment
EN 62053-21:2003 Electricity metering equipment (a.c.) - Particular requirements - Part 21: Static meters for active energy (classes 1 and 2)
EN 62196-3:2014 Plugs, socket-outlets, vehicle connectors and vehicle inlets - Conductive charging of electric vehicles - Part 3: Dimensional compatibility and interchangeability requirements for d.c. and a.c./d.c. pin and contact-tube vehicle couplers
EN IEC 62052-11:2021 Electricity metering equipment - General requirements, tests and test conditions - Part 11: Metering equipment
EN IEC 62053-21:2021 Electricity metering equipment - Particular requirements - Part 21: Static meters for AC active energy (classes 0,5, 1 and 2)
EN IEC 62196-3:2022 Plugs, socket-outlets, vehicle connectors and vehicle inlets - Conductive charging of electric vehicles - Part 3: Dimensional compatibility requirements for DC and AC/DC pin and contact-tube vehicle couplers
HD 60364-5-54:2011 Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors
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ISO/IEC 15118-2
ISO/IEC 15118-3
Due to further technical developments in the field of electric vehicles charging, the requirements in the IEC 61851-23:2014 to fulfill the safety objective “Protection against electric shock” under single fault condition by limiting the capacitance energy, may not cover all possible combinations of charging stations and vehicles. Since the charging process links the charging infrastructure with the electric vehicle, the requirements laid down in ISO 17409:2015 are also relevant for the electrical safety of the charging process. The approach of limiting the capacitance energy will not be sufficient for the safety objective “protection against electric shock” under single fault condition in all relevant cases. Therefore, this warning is issued for both standards.
It is as always strongly recommended that users of standards additionally perform a risk assessment. Specifically in this case, standards users shall select proper means to fulfill safety requirements in the system of charging station and electric vehicle.
In the responsible ISO and IEC committees the technical experts are currently working on additional information and measures, which will be included in the concerned standards. Should you have any questions or require any clarification, please contact IEC (sales@iec.ch).