swt_passenger
Veteran Member
- Joined
- 7 Apr 2010
- Messages
- 31,468
Third rail DC and overhead AC are both external. There’s a good argument that dual voltage is not multi-mode. The AC traction packages work the same however power is sourced. Dual voltage EMUs were hardly ever referred to as bi-mode in the past.Which makes the division of the 700 series into multi-mode and pure electric redundant then, as all pure electric units delivered in the modern day are capable of having two sources of traction power - third rail and OHLE. Usually they don't come with shoegear if they don't need it, same with a pantograph, but they're still theoretically multi-mode units