The bus bars of the system consists of electrolytic copper plates of various sections according to the current requirements. The horizontal bars are placed in the top of the switchboards and are sustained by small steel bars and comb-type isolator in PBT made by Alfaquadri.
The bus bars consist of pieces bolted together run through the entire length of the switchboard. From these, by means of bolted joints, are derived the vertical bars at the rear of each compartment from which in turn are derived with special joints bolted feeds of individual users.
Vertical posts in the back of each compartment derive from the horizontal bus bars by means of bolted joints