750 VDCthird rail (South of Farringdon) 25 kV 50 HzAC Overhead (North of City Thameslink)
Thameslink[1] was a train operating company in the United Kingdom owned by Govia that operated the Thameslink franchise between March 1997 and March 2006.
The franchise was originally due to end on 31 March 2004, however a two-year extension was awarded to Govia by the Strategic Rail Authority on 13 February 2004.[2] In December 2005, the Department for Transport awarded the new franchise to FirstGroup; thus the services operated by Thameslink were transferred to First Capital Connect on 1 April 2006.
Between September 2004 and May 2005, Class 317s were hired from West Anglia Great Northern to operate Bedford to St Pancras services while the Thameslink line was severed for six months for the new St Pancras station to be built.[3][full citation needed]
In April 2005, the Strategic Rail Authority announced the parties shortlisted to bid for the new Thameslink Great Northern franchise; Govia was not shortlisted.[6] In December 2005, the Department for Transport awarded the new franchise to FirstGroup. Accordingly, the services that were operated by Thameslink were transferred to First Capital Connect on 1 April 2006.[7] However, it was announced in May 2014 that Govia had reclaimed the Thameslink franchise, which started on 14 September 2014, thus ending the First Capital Connect franchise. Govia now operates Thameslink under Govia Thameslink Railway.