As supports to telephone and overhead power / electric transmission and distribution lines of medium and low voltage, spun reinforced concrete poles are widely used (also called “utility poles or posts”).
The spun elements called poles are the ones having a truncated-cone shape, tapered at one edge.
Those called piles, on the contrary, have a constant cylindrical section.
Normally, each Country has got its own standard sizes and features for the production of such elements but it is also possible to manufacture special poles and piles, provided they are suitably pre-engineered.
Each pole or supporting structure must be designed for the loads imposed on it by the conductors. The weight of the conductor must be supported, as well as dynamic loads due to wind and ice accumulation, and effects of vibration.
The spun reinforced concrete poles feature a ring-shape transverse section that is filled with concrete and reinforced by steel rods.
A wide range of types, sections and sizes of poles for different uses is available, based on different regulations in force in each Country.