Crossings of Roads and Railway Lines
Overhead line crossings of roads, railway lines, and small- and medium-sized watercourses do not normally require special construction. However, in the first years of overhead line building a scaffold under the line was required, when a railway line or a road was crossed. Later in Germany and some other countries on each end of a powerline crossing of a stately-operated railway a strainer was required, which can still be seen on some old power lines. For overhead line crossings of motorways the pylons must be rebuilt before they wear out, because these demand additional maintenance. If local conditions are appropriate, an overhead line can be implemented by way of a valley bridge. For example, the Koersch valley bridge near Esslingen, Germany carries the 110 kV, three-phase line of the EnBW AG with 2 circuits. Because of the danger of short circuits from falling objects, undercrossings are typically avoided.
Read more about this topic: Overhead Line Crossing
Famous quotes containing the words roads, railway and/or lines:
“Lift your eyes
Where the roads dip and where the roads rise
Seek only there
Where the grey light meets the green air
The hermit’s chapel, the pilgrim’s prayer.”
—T.S. (Thomas Stearns)
“Her personality had an architectonic quality; I think of her when I see some of the great London railway termini, especially St. Pancras, with its soot and turrets, and she overshadowed her own daughters, whom she did not understand—my mother, who liked things to be nice; my dotty aunt. But my mother had not the strength to put even some physical distance between them, let alone keep the old monster at emotional arm’s length.”
—Angela Carter (1940–1992)
“When the rose reigns, and locks with ointments shine,
Let rigid Cato read these lines of mine.”
—Robert Herrick (1591–1674)