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Electrical Cable Size Calculations
3-phase motor, 15 kW, 415 V, PF 0.85 [ I = \frac150001.732 \times 415 \times 0.85 \approx 24.5 A ]
From above example: Need → select 6 mm² (36A in conduit is too low; 48A in air OK) or 10 mm² for conduit. electrical cable size calculations
The cable must handle the full load current without melting the insulation. 3-phase motor, 15 kW, 415 V, PF 0
Before calculating, determine:
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