Cable Size Calculator

This calculator determines minimum cable size using the method described by the Standard AS/NZS 3008.1.1 and uses the accurate voltage drop method.

Note that cable operating temperature is not being considered and cable short-circuit performance is also ignored.

You should use our Cable Pro Web software for the most accuracy.

Please enter the parameters below and press Calculate.

Related Resources:

Earth Cable Size Calculator

Earth cable size can be determined using Table 5.1 in AS/NZS 3000 or by calculation.

Fault Loop Impedance Calculator

This fault loop impedance calculator is based on the Standards. Refer to our article “Understanding Earth Fault Loop Impedance“. 

Cable Pro Web

Cable sizing and maximum demand software in the cloud. No installation, use on any device.

Cable Pro Web

Cable sizing and maximum demand software in the cloud.

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