7.3Design voltage and frequency#

Addition of pending change in supply voltage to 230 / 400 V +10% to −6%.

The Queensland Electricity Regulation 2006 (current as at 16 March 2018) Section 11 Supply at low voltage states that the standard voltage for the supply, before 27 October 2018, of electricity supplied at low voltage from a three-phase system is:

1. a)between a phase conductor and a neutral conductor:
2. i.the nominal voltage stated for the system in AS 60038 or
3. ii.240 V, and
4. b)between two phase conductors:
5. i.the nominal voltage stated for the system in AS 60038 or
6. ii.415 V.

The standard voltage for the supply, on or after 27 October 2018, of electricity at low voltage from a three-phase system or a single-phase system is the nominal voltage stated for the system in AS 60038

AS 60038 states that the nominal supply voltage for low voltage supply systems in Australia are 230 / 400 V +10% to −6%. The nominal frequency is 50 Hz.