Terms in Charging Topology category referencing BS 7671
Standard or regulation
BS 7671
BS 7671 is the UK national standard for electrical installations, covering the design, erection, inspection, testing and verification of low-voltage electrical systems. Section 722 contains specific requirements for supplies to electric vehicles.
M
Mode 3 Charging
Mode 3 charging uses dedicated AC EV supply equipment with control signalling between the charger and the vehicle. It is normally assessed alongside charging mode, AC/DC architecture, power rating, connector type and how the charger shares or delivers power.
S
Single-Phase Charging
Single-phase charging uses a single-phase AC supply, commonly found in many UK domestic and small commercial installations. It is normally assessed alongside phase availability, circuit capacity, protective devices, cable sizing and DNO/site constraints.
T
Three-Phase Charging
Three-phase charging uses a three-phase AC supply and can support higher AC charging rates where the vehicle and charger are compatible. It is normally assessed alongside phase availability, circuit capacity, protective devices, cable sizing and DNO/site constraints.