Voltius

Voltius supports electrical conductor sizing using selected tables and criteria from the Brazilian NBR 5410 standard. It is intended for engineers, electricians and technicians working with low-voltage electrical installations. FEATURES • Installation methods A1, A2, B1, B2, C, D, E, F and G, with simplified selection for A and B. • Copper and aluminum conductors; PVC 70°C and EPR/XLPE 90°C insulation. • Ampacity-based conductor size preview. • Voltage-drop calculation when voltage and length are provided, with an option to recalculate conductor size. • Temperature and grouping correction factors. • Layers and parallel conductors for supported combinations, with messages when a specific engineering assessment is required. • Neutral conductor cross-section display. • Light and dark themes. • Interface available in Portuguese, English and Spanish. REFERENCE AND SCOPE NBR 5410:2004, corrected version 2008 — Low-voltage electrical installations. This app does not replace consultation of the official standard or assessment of a complete installation. The current-only preview does not check voltage drop. Results must be validated by a qualified professional. CALCULATION REPORT Export a PDF with inputs, formulas, calculation steps and assumptions. Compare sizing by current-carrying capacity, resistance-only voltage-drop resizing and resizing with estimated reactance. Set power factor, inductive or capacitive load and 50 or 60 Hz frequency in advanced parameters. The model uses resistance corrected for the assumed conductor temperature and approximate reactance. It does not verify actual cable temperature or current balance between parallel conductors; cases requiring these checks remain identified as unvalidated previews.