It is planned to increase the traction voltage from the present nominal 630 V to 750 V to give better performance and allow the trains to return more energy to the network through their regenerative brakes.
Det er planlagt at forøge traktionsspændingen fra de nuværende nominelle 630 V til 750 V for at give bedre ydeevne og gøre det muligt for togene at returnere mere energi til netværket gennem de regenerative bremser.