I don't think it should matter? it's AC. If you really have to figure out the live vs neutral you can test AC between one wire and a known side in a plug/strip. So if you get 0v AC you're on the same wire, otherwise if you get the 115v then the wire in the blast is opposite the hole in the plug. Does that make sense? Actually I think you're on 240v in Aus? Same concept applies.