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New S Wales trains on order.

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New S Wales trains on order. - Posted: August 15, 2018 - 2:04 PM Quote and reply
Swiss company Stadler is to supply 36 three-car Citylink tram-train vehicles for use on South Wales Metro services from Cardiff to Treherbert, Aberdare and Merthyr Tydfil. These would be able to operate under the planned 25 kV 50 Hz electrification as well as on battery power. This will permit the use of discontinuous electrification, avoiding the complexity, disruption and expense of installing overhead equipment in challenging locations such as tunnels and bridges with restricted clearances. Battery power would also be used on a proposed street-running extension of the Cardiff Bay branch line to Flourish and potentially other proposed extensions in the Cardiff area.
Stadler will also supply 35 Flirt multiple-units. Of these, 11 will be diesel multiple-units for use on services to Maesteg, Ebbw Vale and Cheltenham. There will also be seven three-car and 17 four-car tri-mode units capable of running on diesel, 25 kV 50 Hz overhead electric and battery power. These are scheduled to enter service on cross-Cardiff routes from 2023, using diesel power on the Vale of Glamorgan, Barry and Penarth routes south of the city and electric power to Rhymney and Coryton lines to the north. The use of battery power will avoid the need for costly modifications to 55 bridges along the routes, particularly north of Caerphilly.
Rwy Gazette 15.08.18

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