🔌 Cable Voltage Drop

Voltage drop & wire size selection

🎛 System

Single phase Three phase

Calculation mode

System voltage / V

Load current / A

Cable length / m

Conductor material

Cable size / mm²

💡 Drop ΔU = K·I·ρ·L/S (K=2 single, √3 three). ρ: Cu 0.0175, Al 0.0283 Ω·mm²/m.

✅ Result

Conductor resistance

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Voltage drop

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Drop ratio

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Line loss

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Recommended size

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Drop at recommended size

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📋 Ampacity reference: copper/PVC, 30°C ambient, open laying. Adjust for installation method and temperature.