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Cable - Trefoil vs Flat Formation

Contents

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Cable-ampacity difference between trefoil and flat formation per IEC 60287 - ship cable trays rarely perfect trefoil.

Formula

$$ I_{trefoil} \approx 1.05 \cdot I_{flat} $$

Symbol legend

SymbolMeaningUnitSource
$I$Continuous ampacityAIEC 60287

Sources

  • IEC 60287 / 60092-352.