Bosporus overhead line crossing II
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Bosporus overhead line crossings refers to the three
transmission line In electrical engineering, a transmission line is a specialized cable or other structure designed to conduct electromagnetic waves in a contained manner. The term applies when the conductors are long enough that the wave nature of the transmi ...
crossings of the
Bosporus The Bosporus Strait (; grc, Βόσπορος ; tr, İstanbul Boğazı 'Istanbul strait', colloquially ''Boğaz'') or Bosphorus Strait is a natural strait and an internationally significant waterway located in Istanbul in northwestern Tu ...
, the strait in
Istanbul ) , postal_code_type = Postal code , postal_code = 34000 to 34990 , area_code = +90 212 (European side) +90 216 (Asian side) , registration_plate = 34 , blank_name_sec2 = GeoTLD , blank_i ...
, Turkey.


154 kV Vaniköy-Etiler

The ''Bosporus overhead line crossing 1'' was the first overhead transmission line crossing the Bosporus. It was inaugurated in 1957 and it is designed and operated for two 154 kV circuits. Although apparently designed for overhead ground wires, none are currently present. The span width is , clearance over Bosporus is . The pylons carrying this span are 113 metres tall.


Coordinates

* Strainers West: , * Suspension Tower West: * Suspension Tower East: * Strainers East: ,


380 kV Anadolukavağı-Rumelikavağı


Crossing II

''Bosporus overhead line crossing 2'' is the second transmission line across Bosporus. It is designed for two 420 kV circuits and it went in service in 1983. It has a span width of and is mounted on 124 metres tall pylons.


Coordinates

* Strainers West: , * Suspension Tower West: * Suspension Tower East: * Strainers East: ,


Crossing III

''Bosporus overhead line crossing 3'' is the third overhead line crossing of the Bosporus. It is adjacent to the second crossing, and is designed for four 420 kV circuits, but can be used after some re-engineering work also for 800 kV lines. Since 1999, two of the four circuits are in use. The pylons on which the crossing span is mounted are high.


Coordinates

* Strainer West: * Suspension Tower West: * Suspension Tower East: * Strainer East:


Gallery

;154 kV

;380 kV


See also

*
List of towers Several extant building fulfill the engineering definition of a tower: "a tall human structure, always taller than it is wide, for public or regular operational access by humans, but not for living in or office work, and are ''self-supporting' ...
*
List of spans The following is a list of spans, either used for overhead line crossings of rivers, sea straits or valleys, as antenna or for aerial tramway An aerial tramway, sky tram, cable car, ropeway, aerial tram, telepherique, or seilbahn is a typ ...


External links


STFA Project
* 380 kV *
Map of complete spans
*
Map of Anadolu Kavağı
*
Map of Rümeli Kavağı
* 154 kV *
Map of Etiler
*
Map of Vaniköy
* http://www.elektrikport.com/dunyanin-en-onemli-enerji-iletim-hatti-atlamalari {{DEFAULTSORT:Bosporus Overhead Line Crossings Electric power infrastructure in Turkey Powerline river crossings Bosphorus Towers in Istanbul de:Bosporus#Freileitungskreuzungen