Single-phase

Single-phase in Australian records

Single-phase describes the phase arrangement used in a record. In Australian AUWiring pages it commonly sits beside 230 V a.c. phase-to-neutral context, especially when a calculator converts power to current or explains a supply-voltage assumption.

The phrase should name the arrangement, not stand in for every conductor in the circuit. A single-phase note may still need active, neutral and protective earth labels when the page is discussing conductor roles.

Where 230 V assumptions appear

Single-phase wording appears in load-current conversion, voltage-drop inputs, supply-voltage tables and comparisons with three-phase supply. It identifies which arithmetic relationship or supply context the page is using.

Single-phase is not two-phase shorthand

Single-phase is not the same as active. Active names a conductor role; single-phase names the supply arrangement. Neutral and earth still need to be named separately when they matter to the record.

The term also does not guarantee the exact voltage at a site. Use 230 V as the public Australian context, while project records and entered calculator values should carry the specific basis being used.

Using the phase basis in calculations

Use the load-current calculator when a single-phase power value needs current conversion. Use the Australian supply-voltage table for public context. Keep phase arrangement, voltage and units together so the note stays readable.