In depth

Catenary upgrade brings 225 km/h to British tracks

By Richard Hope 2000-11-01T11:00:00

Renewal of 25 kV overhead wires, coupled with the world's first autotransformer feeding of a four-track main line, will enable Virgin's Pendolino tilting trains to slash journey times and double frequency from May 2005. Richard Hope explains how it is being done mainly during overnight possessions

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