2049 3.3.2 Definition of the Analysis Horizon Operational period maps were consolidated as projected mine surfaces representing different planning horizons. Quarterly surfaces were used for the first two years and annual surfaces for the following three years, enabling evaluation over a five-year horizon and anticipating changes in ramps, phases, and areas potentially affected by electrical infrastructure. 3.3.3 Mine Geometry Assessment The analysis considered pit deepening trends, primary access ramps, switchbacks, potential equipment positioning areas within the pit, and berm widths, ensuring that electrical layouts were compatible with evolving mine geometry. 3.3.4 Fleet Projection by Phase and Period Projected shovel fleet distribution was defined for each phase and period to determine which mobile substations could be utilized under each operational configuration. 3.3.5 Geometric Criteria for Electrical Line Routing Pole alignments prioritized straight configurations, avoiding zigzag layouts where possible. Catenaries were oriented following the general direction of ramps, maintaining a maximum span length of approximately 280 m between poles. 3.3.6 Operational Accessibility and Maintenance Considerations Poles were preferentially located near bench accesses and ramp toes to facilitate safe entry for electrical maintenance crews and equipment. 3.3.7 Geotechnical Ground Conditions Infrastructure installation prioritized wider benches (approximately 12 m) and competent rock zones in accordance with the mine’s defined geotechnical domains. 3.3.8 Integration of Blasting Constraints Blasting impact radii were evaluated both in plan view and three-dimensionally, considering projected phase elevations. Infrastructure installation was scheduled only after achieving a minimum separation distance of 200 m from active blasting fronts. 3.3.9 Mobile Substation Location Optimization Opportunities were assessed to position substations closer to active phases, utilizing areas such as switchbacks or phase intersections to improve power supply quality and reduce cable lengths. In addition, a detailed field scan was conducted to obtain the exact dimensions of the mobile substations, confirming a footprint of approximately 19 × 6 m. This information supported the redesign of specific benches to safely accommodate the substations and to position them closer to lower benches. 3.3.10 Cable Length Estimation Approximate trailing cable requirements were calculated for each alternative as a comparative variable between scenarios. 3.3.11 Scenario Development and Interdisciplinary Review
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