Here you see an unusual substation: the MV lines arrive at the Solvay chemical plant of Saline di Volterra (near Pisa), and on the wall (left side)you can see also some LV lines: they're the Solvay's telephone lines between the plants of Saline and Ponteginori, with many types of insulators, including a CD 122, used as terminal insulator. These lines are still in use, even if with some problems............

[IFONA]