Comparative analysis between the use of lattice towers and polygonal monopoles in SNEL SA's power grid network
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Abstract
The comparative study on the use of lattice towers versus pylygonal monopods in SNEL SA's high-voltage transmission grid network is of paramount importance in determining the conditions for safety, reliability, operation and maintenance. The main aim is to overcome the growing phenomenon of vandalism, such as the theft of galvanized angle irons, bolts, copper conductors and earth counterweight wires from electrical infrastructures, leading to the collapse of lattice towers and the unavailability of SNEL SA's power transmission lines. The use of conical monopods offers the following advantages: Aesthetics, can be installed in urban areas, small footprint, rapid installation, dismantling and reuse possible, one-day installation, reduced number of parts for assembly, low maintenance costs spread over several years, resistance to vandalism, no natural aggression and environmental impact. The complete cost of building one kilometer of line is 1.25 k€/km with a conical monopole, compared with 1 k€/km for a lattice tower, resulting in an installation cost variation of 20%.
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