Voltage Drop: 30A at 100 Feet with 8 AWG Wire
Heavy-duty circuit to workshop or outbuilding with significant distance.
Results
Voltage Drop4.67V
Voltage Drop %3.89%
Voltage at Load115.3V
StatusFAIL (exceeds 3%)
Recommended Wire250 AWG
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Medium-distance voltage drop calculation for 20-amp circuit to garage or workshop.