The usa have their own wiring colours for electrical circuits black red and blue are used for 208 vac three phase.
Electric cable brown and blue.
Brown orange and yellow are used for 480 vac.
Black red blue are used on voltages up to 250v all signify they are current carrying conductors.
The uk s new cable colours for plugs are now harmonise with europe s power cable colours for ac dc.
The color of the sheathing indicates recommended.
New uk wiring colours new electrical cable colours were introduced in the uk in march 2006 when the united kingdom s government made an amendment to british standard bs 7671 requirements for electrical.
Non metallic or nm 120 volt and 240 volt electrical cable come in two main parts.
Us ac the us national electrical code only mandates white or grey for the neutral power conductor and bare copper green or green with yellow stripe for the protective ground in principle any other colors except these may be used for the power conductors.
The colors adopted as local practice are shown in table below.
Australia also have a different wiring colour standard.
Brown orange and yellow are all current carrying conductors used on voltages up to 480v.
Neutral would be white ground wires are either green or green with a yellow tracer.
But don t trust the cable insulation colors in these areas as electricians use old as well as new color codes for both ac and dc.
Electrical wiring in the united kingdom is commonly understood to be an electrical installation for operation by end users within domestic commercial industrial and other buildings and also in special installations and locations such as marinas or caravan parks.
Gray is the neutral color grounds are green and green w yellow tracer.
Black red and blue are used for 208 vac three phase.
In other words blue yellow violet and brown wires come into play when you have multiple wall switch locations two in a 3 way switch or three in a 4 way switch that control the same set of.
Electrical cable and wire color markings.
Brown orange and.
Other countries like china russia ksa and uae now follow the iec cable color codes for dc.
3 core cable was changed from red live to brown live neutral blue to neutral grey additional from yellow to black with earth bare or green yellow.
Electrical cable colours are distinguished with either a dyed lead insulation sheath electrical tape or an identifiable plug insulator.
It does not normally cover the transmission or distribution of electricity to them.