| 21. | The first trams powered by overhead lines entered service in 1904.
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| 22. | Transposing of overhead lines is usually realized at so-called transposing pylons.
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| 23. | This line closed in January 1966 and the overhead line equipment was removed.
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| 24. | An exhibition also exhibited examples of street track, overhead line and platform facilities.
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| 25. | The overhead line from Lehrte via Brunswick to Helmstedt was not completed until 1976.
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| 26. | While all tracks are electrified with 750 V overhead line.
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| 27. | The length of submarine cable is and the total length of overhead lines is.
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| 28. | It is electrified using 850 DC supplied by overhead lines.
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| 29. | The derailment also brought down the overhead line equipment which had to be replaced.
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| 30. | Distances on the system are measured from a datum point at overhead line structures.
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