In the UK, the London, Brighton and South Coast Railway pioneered overhead electrification of its suburban lines in London, London Bridge to Victoria being opened to traffic on 1 December 1909. Victoria to Crystal Palace via Balham and West Norwood opened in May 1911. Peckham Rye to West Norwood opened in June 1912. Further extensions were not made owing to the First World War. Two lines opened in 1925 under the Southern Railway serving Coulsdon North and Sutton railway station. The lines were electrified at 6.7 kV 25 Hz. It was announced in 1926 that all lines were to be converted to DC third rail and the last overhead electric service ran in September 1929. COUNT 4
QSN1 When was overhead wires system being used for the first time in UK? ANS1 1 December 1909 QSN2 What line used the overhead wire system first Victoria to Crystal Palace or Peckham Rye to West Noorwood? ANS2 Victoria to Crystal Palace QSN3 What was the cause of lines not being extended? ANS3 the First World War QSN4 What voltage was used in the two lines opened in 1925 of Southern Railway? ANS4 6.7 kV 25 Hz