24VDCbrown blue

As professionals whose work involves electrical installations in Australia, it’s a must to have a deep understanding on the electrical cabling colour codes for AC/DC wires and single phase and 3-phase systems.

When electrical wiring changes or fixes are made and produce terminations or junctions to existing live conductors with yellow insulation, the said conductors must be sleeved with white sleeving within each produced terminations or wiring junctions.

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According to AS3000, when electrical wiring changes or fixes are made and produce terminations or junctions to existing bare conductors, the said conductors must be sleeved with green/yellow sleeving within each produced terminations or wiring junctions.

Let’s understand the colour codes and how they differentiate electrical current carrying power, signal, and grounding wires.

230V wire colors

24VDCwirecolor codeUSA

In the unlikely event of an electrical fault, it is easier electricians to evaluate and work on it at a glance when all the wires are colour coded.

For underground installations, neutral and earth wire are generally in a grounded style. So, brown or black are usually used.

Aside from using a cable size calculator online, it is critical for electricians to reduce any electrical fire risks for homeowners when they’re using electricity at home.

24VDCwirecolor codeIEC

In addition, for improved electrical safety, you’ll need this convenient reference to Australian electrical cabling colour codes we’ve prepared just for you.

Any personnel working with you on the wires should have some familiarity with the colour codes from the determined period of installation.

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You can refer to the colour guide towards the end of this article specifically for systems before the creation of AS3000 in 2018.

The age of the commercial property or home might not be the best indicator if previous work involved home rewiring, or unlicensed electrical repairs.

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