Shipboard Cable Ampacity, Voltage Drop, Breaker & Retrofit Route Capacity Tool
Screen whether an existing or proposed shipboard cable circuit can carry a retrofit load without exceeding derated cable ampacity, voltage-drop limits or breaker protection windows. Simple mode answers the core circuit question quickly. Advanced adds starting drop, detailed derating, breaker fault duty, route fill/weight, multiple retrofit circuits and installation readiness.
Fast Circuit Screen
Use approved manufacturer/project data for base ampacity and conductor resistance. Simple mode assumes one cable run and tells you when one run is not enough.
Retrofit Power & Route Basis
Route fill is only a planning screen. Segregation, EMC, fire boundaries, transits, supports, bend radius and pull access can govern earlier.
Advanced Circuit Electrical Load
Cable Ampacity & Impedance Basis
Do not infer shipboard ampacity from conductor size alone. Use applicable manufacturer/class/project current-carrying data.
Breaker & Fault-Duty Screen
Additional Circuits Sharing This Route
Optional. Add only other retrofit circuits that share this cable route. The primary circuit above is already included automatically and must not be entered again here.
| Circuit | System | V | kW | PF | Eff % | Length | Margin % | Parallel | Base A | Derate | R | X | Max VD | Breaker A | Fault kA | Break kA | OD mm | Phys/run | kg/m |
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