Voltage Drop Calculator

Calculate voltage drop in electrical cables per AS/NZS 3008. Essential for Australian electricians to ensure compliant cable sizing.

Circuit Details

⚡ AS/NZS 3000: Max allowable voltage drop = 5% of supply voltage (230V = 11.5V max)

System voltage

Current (A)

Cable length (one-way)

Cable size (mm²)

Conductor material

Copper Aluminium

Result

Voltage Drop

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Parameter	Value

Australian Cable Sizing (AS/NZS 3008)

The AS/NZS 3008 standard governs cable selection in Australian electrical installations. Key factors: current-carrying capacity (ampacity), voltage drop, and fault current ratings. Maximum voltage drop for final subcircuits is 5% of nominal supply voltage.