Electrical Services Standard

6.6 Single Line Diagram, Labels and Marking. Mark operable control devices, indicators, isolating switches and outlets to provide a ready means of identification. ... Equipment labelling must be used to mark equipment, controls, switchboards, panels,
www.sydney.edu.au/content/dam/corporate/documents/about-us/working-with-the-university/contractors/ui-electrical-services-standard-v4.pdf