Changing power cord to fit into Australia electricity socket? HI, i bought a machine from Vietnam. it has a different power...

HI, i bought a machine from Vietnam. it has a different power cord nouns to our wall socket. i would like to change it. The cord have three copper wires - blue, brown and green. Vietnam does not have an "earth" wire but this apparatus came with 3 wires. Is in that an earth wire and if so which one? I hope my English is making sense as i do not know the correct vocabulary.
Do glass part nouns conditioners necessitate to be...
Answers:    In Australia Green and Yellow is earth. Brown is active and Blue is colourless.