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Cable Ampacity - Derating Factors

Apply temperature and grouping derating factors to IEC 60092-352 ampacity - final allowable continuous current for a marine cable run.

AmpacityIEC 60092Derating
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Formula, assumptions, and limits

Imax=I0kTkgI_{max} = I_0 \cdot k_T \cdot k_g
SymbolMeaningUnit
I0I_0Base ampacityA
kTk_TTemperature derating
kgk_gGrouping derating

Source: IEC 60092-352

In short

Apply temperature and grouping derating factors to IEC 60092-352 ampacity - final allowable continuous current for a marine cable run.

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