Three Phase 3 Phase Wiring Colours. For three phase wiring our standard colours are. All the above mentioned color code for electrical wiring is to transmit ac current from the mains. Installation wiring also known as building wiring is for things such as the wiring behind power points and walls.
Red white dark blue. Current australian colour code single phase. For example any three core 3c e or four core 4c e power cable bought in australia would follow the above colour codes. India and pakistan including the other subcontinent countries and south africa aka proteas they adapted the iec now follow the old uk wiring color codes i e ryb red yellow and blue for three phase and red black for phase and neutral respectively.
In case of a three phase power supply the combination of red yellow and blue are used for the active line power conductors black color for neutral conductor and green or green yellow for protective ground.
For a single phase supply red or brown is used for line and black or sky blue is used for neutral. Phase 3 connectors ltd coopers lane coopers point knowlsey business park liverpool merseyside england l33 7ub. The list below also outlines the different colour codes for single phase and multiphase in australia. For earth or protective conductor green yellow or green or bare copper conductor can be used. Current australian colour code single phase.