| 31. | The tramway operation was leased to British Electric Traction.
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| 32. | The reduced grade eliminated the need for electric traction.
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| 33. | The gas-electric concept was eventually superseded by diesel-electric traction.
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| 34. | Signalling and electric traction supply at 25 kV AC are also under Eurotunnel control.
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| 35. | KiwiRail retains ownership of the tracks, platforms, electric traction and signalling systems.
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| 36. | The section past the station took electric traction into use on 7 December 1964.
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| 37. | A variety of small engine types can be used including diesel or electric traction.
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| 38. | This line used the Love Electric Traction Company's system of conduit electrification.
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| 39. | The course of events prompted the LPE to convert its network to electric traction.
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| 40. | In 1931 the NECC became a part of British Electric Traction ( BET ).
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