The Sognefjord Spans are the second, third, and fourth longest spans in the world situated east of Hermansverk, Norway and are part of different powerlines. As Sognefjord Span is a deep valley the pylons of these spans are not taller than ordinary pylons. In order to avoid any too close approaches or contacts between the conductors, each is mounted on a separate pylon at the end of the span, which is built as a steel framework tower.
Span 1
This span is part of the powerline between Hermansverk 61°10′49″N 6°51′53″E / 61.18028°N 6.86472°E and Vikøyri 61°04′50″N 6°35′13″E / 61.08056°N 6.58694°E and was built in the 1950s. It has a length of 4850 metres and was until the inauguration of Ameralik Span the longest span in the world. The span, which crosses Sognefjord in North-South direction, has 4 conductors, whereby one is for reserve. Its northern ends are at
61°10′30″N 6°54′14″E / 61.17500°N 6.90389°E
61°10′29″N 6°54′16″E / 61.17472°N 6.90444°E
61°10′29″N 6°54′19″E / 61.17472°N 6.90528°E
61°10′27″N 6°54′21″E / 61.17417°N 6.90583°E
and its southern ends are at
61°08′21″N 6°51′13″E / 61.13917°N 6.85361°E
61°08′20″N 6°51′17″E / 61.13889°N 6.85472°E
61°08′19″N 6°51′18″E / 61.13861°N 6.85500°E
61°08′16″N 6°51′18″E / 61.13778°N 6.85500°E.
Span 2
Just a few hundred metres east of Span 1, the powerline from Stakaldefossen 61°26′48″N 6°00′49″E / 61.44667°N 6.01361°E to Refsdal: 61°01′15″N 6°34′08″E / 61.02083°N 6.56889°E crosses Sognefjord with a 4520 metres long spanin East-West direction. As Span 1 it has 4 conductors, whereby 1 is as reserve. The locations of the towers used for this span are at its western end:
61°08′08″N 6°51′37″E / 61.13556°N 6.86028°E
61°08′07″N 6°51′38″E / 61.13528°N 6.86056°E
61°08′05″N 6°51′39″E / 61.13472°N 6.86083°E
61°08′04″N 6°51′40″E / 61.13444°N 6.86111°E
and at its eastern end:
61°08′28″N 6°56′39″E / 61.14111°N 6.94417°E
61°08′27″N 6°56′39″E / 61.14083°N 6.94417°E
61°08′25″N 6°56′36″E / 61.14028°N 6.94333°E
61°08′24″N 6°56′36″E / 61.14000°N 6.94333°E .
Span 3
Approximately 9 kilometres east-south east of these spans, there crosses the line from Aurland1 60°51′46″N 7°18′04″E / 60.86278°N 7.30111°E to Langedøla 61°26′14″N 7°14′44″E / 61.43722°N 7.24556°E Sognefjord in a span with a length of 4500 metres in North-South direction. It has no reserve conductor and consists therefore of 3 ropes. Its towers are situated at its southern end at
61°6′19″N 7°03′53″E / 61.10528°N 7.06472°E
61°6′20″N 7°03′55″E / 61.10556°N 7.06528°E
61°6′21″N 7°03′58″E / 61.10583°N 7.06611°E
and at its north end at
61°8′45″N 7°02′56″E / 61.14583°N 7.04889°E
61°8′45″N 7°02′59″E / 61.14583°N 7.04972°E
61°8′46″N 7°03′02″E / 61.14611°N 7.05056°E
.
See also
External links
- https://web.archive.org/web/20090815162655/http://www.statnett.no/en/News/Highest-and-longest/
- http://www.sffarkiv.no/sffbasar/default.asp?p=result&db=dbatlas_leks&art_id=4611&spraak_id=1&ptype=single&lang=eng&paging=yes