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Old October 31st, 2005, 01:34 PM   #1
Obelixx
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Join Date: Apr 2005
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Pylons for high-voltage powerlines on the roofs of buildings

Small pylons for voltages below 1000 volts on the roof or at the walls of buildings are common in areas, where the power supply of buildings is done by overhead wires (in some countries even telephone lines in some city quarters may be build in such a way).
But pylons for voltages over 1000 volts on the roof of buildings may be very rarely and if they are built, than the building on which it stands is primarily used as switchyard or for other purposes of electric power distribution.
Nevertheless there is on a freight depot southly of the main station of Fulda, Germany a pylon for 110kV on the roof, although the building contains no facilities for electric power distribution! See on http://www.progforum.com/attachment....tachmentid=791 !
(Note: the pylon has 4 conductors, because it is a part of a traction current line of the German Railway Company. The German Railway Company has its own power grid. It is a single phase AC power grid with a transmission voltage of 110kV [the voltage in the overhead lines of the railways is 15kV] and therefore the number of conductors of a powerline for 2 circuits is 4 and not 6 as at powerlines for three-phase AC of the public power grid)
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