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Voltage Drop - Cable Run

Cable voltage drop (three-phase) over a given run length using resistance per km and load current - the basic sizing check per IEC 60092-352.

Voltage dropCableIEC 60092
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Formula, assumptions, and limits

ΔU=3ILRcosφ\Delta U = \sqrt 3 \cdot I \cdot L \cdot R \cdot \cos\varphi
SymbolMeaningUnit
IILoad currentA
LLCable lengthm
RRResistancemΩ/m

Source: IEC 60092-352

In short

Cable voltage drop (three-phase) over a given run length using resistance per km and load current - the basic sizing check per IEC 60092-352.

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