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ENGINEERING SOLVERS & CONVERSIONS

Solvers/electrical/voltage-drop

AC / DC Voltage Drop & Cable Sizing Calculator

Size electrical conductors accurately by calculating line impedance, resistance, percentage voltage drop across long runs, and compliance with the 3% branch circuit standard.

Circuit Parameters

Voltage Drop (% ΔV)
2.82%
End Voltage
388.7 V

Calculation Steps

1. Conductor Line Resistance (R)

Based on copper resistivity at operating temperature (0.0214 \(\Omega\cdot\text{mm}^2/\text{m}\)).

2. Total Voltage Drop (\Delta V)

Calculated with power factor \(\cos\phi = 0.88\).

3. Terminal Voltage & Cable Heating Power Loss

Joule $I^2 R$ heat dissipated into the raceway/tray.

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Recommended Reference Handbooks & Standards

Handpicked essential literature for AC / DC Voltage Drop & Cable Sizing Calculator

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Governing Equation

Analytical equations compliant with standard university curricula and professional engineering practice codes.