Standards Development

Scope

The particular requirements of this document apply tocircuits intended to supply energy to electric vehicles, and circuits intended to supply energy from electric vehicles.NOTE The same circuit can be used for both purposes.Circuits covered by this document are terminated at the connecting point.The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.IEC 60309-1: Plugs, socket-outlets and couplers for industrial purposes – Part 1: General requirementsIEC 60309-2: Plugs, socket-outlets and couplers for industrial purposes – Part 2: Dimensional interchangeability requirements for pin and contact-tube accessoriesIEC 60364 (all parts), Low-voltage electrical installationsIEC 60364-4-41:2005, Low-voltage electrical installations – Part 4-41: Protection for safety – Protection against electric shockIEC 60364-4-41:2005/AMD1:2017IEC 60529:  Degrees of protection provided by enclosures (IP Code)IEC 60947-2, Low-voltage switchgear and controlgear – Part 2: Circuit-breakersIEC 61008-1, Residual current circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) – Part 1: General rulesIEC 61009-1, Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs) – Part 1: General rulesIEC 61557-9, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. – Equipment for testing, measuring or monitoring of protective measures – Part 9: Equipment insulation fault location in IT systemsIEC 61558-2-4, Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V – Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformersIEC 61851 (all parts), Electric vehicle conductive charging systemIEC 61980 (all parts), Electric vehicle wireless power transfer (WPT) systemsIEC 62196 (all parts), Plugs, socket-outlets, vehicle connectors and vehicle inlets – Conductive charging of electric vehiclesIEC 62196-1, Plugs, socket-outlets, vehicle connectors and vehicle inlets – Conductive charging of electric vehicles – Part 1: General requirementsIEC 62196-2, Plugs, socket-outlets, vehicle connectors and vehicle inlets – Conductive charging of electric vehicles – Part 2: Dimensional compatibility and interchangeability requirements for a.c. pin and contact-tube accessoriesIEC 62196-3, 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 couplersIEC TS 62196-4, Plugs, socket-outlets, vehicle connectors and vehicles inlet – Conductive charging of electric vehicles – Part 4: Dimensional compatibility and interchangeability requirements for DC pin and contact-tube accessories for class II or class III applicationsIEC 62262, Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code)IEC 62423, Type F and type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar usesIEC 62955, Residual direct current detecting device (RDC-DD) to be used for mode 3 charging of electric vehicleFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses:IEC Electropedia: available at http://www.electropedia.org/ ISO Online browsing platform: available at http://www.iso.org/obp722.1.3.1electric vehicleelectric road vehicleEVany vehicle propelled by an electric motor drawing current from a rechargeable energy storage system (RESS), intended primarily for use on public roads[SOURCE: ISO 17409:2015, 3.19, modified — "rechargeable energy storage system" has been added.]722.1.3.2connecting pointterminating point in an electrical installation where energy is transferred between that electrical installation and one electric vehicleEXAMPLE A socket-outlet, a vehicle connector or a supply device of a wireless power transfer system.Note 1 to entry:  A connecting point can be part of an EV charging station.722.1.3.3demand factorratio, expressed as a numerical value or as a percentage, of the maximum demand of a circuit or a group of circuits within a specified period, to the corresponding total installed load of the circuit(s)Note 1 to entry: In using this term, it is necessary to specify to which level of the system it relates.[SOURCE: IEC 60050-691:1973, 691-10-05, modified — The term "installation" has been replaced with the term "circuit".].722.1.3.4EV charging stationpart of EV supply equipment permanently connected to an electrical installation722.1.3.5EV supply equipmentequipment or a combination of equipment, providing dedicated functions to transfer electric energy between an electrical installation and an EV722.1.3.6load controlelectrical (energy) management system ensuring that the sum of load currents of dedicated circuits does not exceed a predetermined valueAdd the following requirements:Where the circuit is intended to be used for transferring energy from the electric vehicle to the installation:- IEC 60364-7-751 except as modify by this part also applies; and- an EV charging station which is designed for this purpose shall be installed.  NOTE IEC 60364-7-751 is under development and will replace IEC 60364-5-55, clause 551.Where a circuit is intended to transfer energy between an electrical installation and an electric vehicle, the circuit shall only supply EV charging stations or connecting points or both.Where a circuit is intended to transfer energy from an electric vehicle, the circuit should be connected to the main distribution board.Where transfer of energy between an electrical installation and an electric vehicle is provided by an electric system for DC, an EV charging station shall be installed.Add the following:Except where EV charging station is installed, each connecting point shall be considered to be used at its rated current.Where an EV charging station is installed, the design current for the circuit connecting the EV charging station to the installation shall be taken as the configured maximum current to be supplied to the EV charging station. In cases where the energy is transferred from the EV, the maximum current supplied by the EV charging station to the installation shall be considered when determining the design current for that circuit. The means for configuration of the maximum current need shall only be accessible to skilled persons or instructed persons.Where more than one EV supply equipment are installed on the same circuit, and where a load control is not provided, the diversity factor for all the connecting points shall be taken as equal to 1, as they can be used simultaneously.NOTE The load control for EV charging can be part of the electrical energy management system (EEMS) of a prosumer’s electrical installation.Add the following:A circuit connecting an EV supply equipment or a connecting point to the installation shall not include a PEN conductor or PEM conductor.Add the following:A circuit connecting an EV supply equipment or a connecting point to the installation shall not include a PEM conductor.