| 1. | Power is supplied to trolleys and interurban railroad cars through overhead wires.
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| 2. | However, trolleybuses continued using the overhead wires until 1932, with trackless cars.
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| 3. | Overhead wire and tracks were removed and the Shepherd Canyon tunnel sealed.
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| 4. | It finished when extensive roadworks made alterations to the overhead wiring uneconomic.
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| 5. | Tracks, power substations, and overhead wires were replaced and stations were renovated.
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| 6. | The electricity is transmitted to the Porgera Gold Mine by overhead wire.
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| 7. | It was supplied to the trams at 550 volts using overhead wires.
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| 8. | Overhead wires are safer than third rails, but they are often considered unsightly.
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| 9. | In 1976 the third rail was replaced by an overhead wire.
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| 10. | This used an AC overhead wire system developed by the Elevated Electric scheme.
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