Mast triples of Zaporizhia
As Masttripel Zaporozhye two identical, each 74.5 m high are triple portal masts at Zaporozhye in Ukraine called. The masts form an overhead line crossing from Khortyzja , an island in the Dnieper River , over the arm of the river that flows around the island on the east side. The river crossing has a span of 900 m and serves to dissipate energy from the Dnjeprostroj hydropower plant .
Due to their height and exposed position, the triple masts are visible from afar as a landmark and an unofficial landmark of Zaporizhia. The unusual mast construction highlights the pair of masts under the overhead line crossings.
history
The overhead line crossing, which was one of the first of its kind in what was then the USSR, was built between 1930 and 1932 and originally consisted of four masts at each end of the span, which are connected at a height of 63.5 meters via a walkway with a railing. The masts were destroyed or dismantled during the Second World War .
Between 1945 and 1949 the masts were rebuilt according to the old plans using the old foundations. The unused foundation for the fourth mast on the island of Khortytsia still exists today and can be seen on satellite or aerial photographs.
construction
Each of the masts has a single traverse above the catwalk at a height of 63.5 meters, on which six conductors can be mounted. However, it only carries four conductors, two on the outside and two on the inside. In the middle of each half of the truss there is a supporting structure that leads down to the catwalk. There the insulator hangs on the underside, on which the middle conductor rope hangs.
Although the triple carries 18 conductors for six 150 kV circuits, only five circuits are currently installed. A sixth circuit runs parallel on modern tubular steel masts.
All masts of the triple are painted red and white and provided with a ladder.
location
- western mast (on Chortyzja ) 47 ° 51 ′ 13 ″ N , 35 ° 4 ′ 41 ″ E
- east mast 47 ° 51 ′ 3 ″ N , 35 ° 5 ′ 22 ″ E
