equipment used for the transportation, installation and maintenance of electrical infrastructure, among others. 3.2.1 Maximum Catenary Span • Value: 280 m between poles. • Condition: Maximum allowable span shall not be exceeded to ensure mechanical stability and electrical performance. 3.2.2. Blast Impact Radius • Value: 200 m. • Condition: Poles, lines, and mobile substations must be located outside the programmed blast impact radius. 3.2.3. Minimum Bench Width for Installation • Value: 12 m bench width. • Condition: Pole installation is not permitted without the required platform width. 3.2.4. Minimum Crest Setback Distance • Condition: A minimum geotechnical setback from the bench crest must be respected to reduce slope instability risks. • Planning Impact: Limits infrastructure placement in deeper or constrained mining phases. 3.2.5. Maximum Effective Reach from Mobile Substation • Condition: The electrical distance between switch house and shovel must remain within acceptable voltage drop and trailing cable length limits. • Planning Impact: Defines shovel operating zones and relocation frequency. 3.2.6. Maximum Capacity per Mobile Substation • Condition: Transformer MVA rating and protection system limits shall not be exceeded. • Planning Impact: Limits the number of simultaneous shovels supplied by a single node. 3.2.7. Interaction with Haulage Routes • Condition: Electrical infrastructure must minimize crossings with primary haul roads used by high-tonnage trucks. • Planning Impact: May require electrical deviations or access redesign.
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