Abstract :
To supply the mounting demand for electricity in the Federal Republic of Germany, a network has been built that consists of 380- and 220-kV multiple bundles. Multitiered towers are used to support the conductors because available land is a limited, expensive commodity. As far back as the 1920s, 220kV, in the scope of an emerging interconnected system, became a necessity for covering great distances. Then followed the 380-kV lines in the 1950s¿the first line section being energized in 1957.
