This calculator uses the accurate voltage drop method described by the Standard AS/NZS 3008.1.1.
Accurate voltage drop calculations will often result in smaller cable sizes. Note that cable operating temperature is not being considered in this calculator – use our Cable Pro Web software to consider this and for the most accuracy.
The Wiring Rules AS/NZS 3000 sets the limits for voltage drop within an installation.
Please enter the parameters below and press Calculate.