Calculator ((full)) — Medium Voltage Cable

| Parameter | Calculated Value | Code Requirement (NEC Table 310.60) | | :--- | :--- | :--- | | Min conductor size (ampacity) | 1/0 Cu (rated 330A derated) | #2 Cu minimum for MV | | Voltage drop | 1.8% (acceptable) | <3% | | Short-circuit withstand | 1/0 Cu = 31kA for 0.5s | Requires #2/0 Cu (25kA → 1/0 insufficient) | | Charging current (0.3 µF/mile) | 0.82A (negligible here) | <5% of load → OK |