# Find the smallest standard size that is larger than the calculated minimum recommended_size = next((size for size in standard_sizes if size >= min_area_mm2), "Custom/Parallel cables required")
| Parameter | Description | Example | |-----------|-------------|---------| | | Full load current of the circuit in amperes | 20 A | | Cable length (L) | One-way or total loop length | 50 m | | Voltage (V) | System voltage | 230 V single-phase / 400 V three-phase | | Voltage drop limit | Max allowed % drop (typically 3% for lighting, 5% for power) | 3% | | Installation method | Buried, in conduit, on tray, clipped direct, etc. | In conduit in insulated wall | | Ambient temperature | Surrounding temperature | 40°C | | Insulation type | PVC, XLPE, EPR, etc. | PVC (max 70°C conductor temp) | | Grouping factor | Number of cables bunched together | 4 circuits | | AC/DC | AC or DC system | AC 50 Hz | | Material | Copper or aluminum | Copper | cable size calculator
return "calculated_min_area_mm2": round(min_area_mm2, 4), "recommended_standard_size_mm2": recommended_size, "actual_voltage_drop_percent": round(actual_v_drop_percent, 3), "status": "Pass" if actual_v_drop_percent <= allowable_v_drop_percent else "Fail" # Find the smallest standard size that is
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