All depends on what country you are in, wiring standards and cable type.
Industrial cable in the UK is. :-
Red = Live
Black = Neutral
Copper wire = earth. (add Green/Yellow striped sleeve at junctions.)
Domestic is:-
Brown = Live
Blue = neutral
Green/yellow stripe = Earth
Black = Live
Blue = Neutral
Brown = Earth
this website is useless !
Australia: ANZS3000 Active= Red or Brown Neutral = Black or Light Blue Earth = Green or Green and Yellow stripe
By tradition, green is the color used for the ground cable (note: NOT the Earth return or "neutral"; that's traditionally the white).
The same rules apply to the whole of Europe. "Brown is live" , "Blue is neutral" and "Green/Yellow is Earth".
For 3 phase, L1 is red; L2 is yellow; L3 is green; Neutral is blue; Earth is yellow&green. For single phase, L is red or brown; Neutral is black or blue; Earth is yellow&green.
Red - active, (commonly known as your live cable) Black - Neutral Green - Earth
hi the colours are 1,green & yellow.earth 2 .brown.live 3 .blue nutral
eletrical wire has 3 specif colour coding. As live wire ,neutral wire,earth wire. 1.live - red 2.neutral-black 3.earth - green. These are the specific color coding of eletrical wire.
In the UK, we use three pin plugs. Neutral (blue cable), Positive (brown cable), Earth (green and yellow striped cable). Positive is also known as the Live cable. The Earth cable is an important safety feature that directs electricity safely to earth should a short-circuit cause the device's metal body (a toaster, for instance) to become live and a dangerous shock is possible to any one touching the device's metal body. Before the modern standard colouring was introduced, black was the neutral, red the positive, and green the earth. This old colouring can still be found in buildings built before the change-over.
You can not have a "neutral earth" the "neutral" and the "earth" are separate wires/connections and should not be cross connected or muddled up.
A spur outlet is a circuit that does not have a secondary path and is not part of the main ring. Spur sockets can have one cable connected to earth, live, and neutral.
If you're asking about UK three prong plugs - the earth cable is green and yellow, the live is brown and the negative is blue.