Max Voltage Drop Australia Jun 2026

In Australia, the standards for voltage drop in electrical installations are governed by the Australian/New Zealand Standard AS/NZS 3008.1.1:2017 and the Electricity Supply (Safety) Regulations 2017. These regulations ensure that electrical installations are safe and efficient, and that voltage drop does not exceed specified limits.

The calculation determines the voltage decrease from the point of supply to any point in the electrical installation. Maximum Allowable Voltage Drop Limits max voltage drop australia

Exceeding the max voltage drop causes:

Energy lost as heat in the cables increases the property’s overall power consumption. In Australia, the standards for voltage drop in

Failing to adhere to the maximum voltage drop limits carries severe penalties and operational risks. or fixed appliance.

This covers the run from the switchboard to the furthest power outlet, light fitting, or fixed appliance.