What is the color of the identified conductor?
The Code states: The grounded conductor of a branch circuit shall be identified by a continuous white or natural gray color. Also, The equipment grounding conductor of a branch circuit shall be identified by a continuous green color or a continuous green color with one or more yellow stripes unless it is bare.
What are the three wires colours?
Electrical Wire Colour Standards The USA have their own wiring colours for electrical circuits, black, red, and blue are used for 208 VAC three-phase; brown, orange and yellow are used for 480 VAC.
What is the purpose for color coding of the conductor?
“Product safety standards set these colors in place to ensure that the wiring is correct to prevent shock and damage to equipment,” Barnett said. The purpose of marking the conductors within the cable is to define which conductor is ground, neutral, and line for proper connection to supply and equipment.
What do the different colors of electrical wire mean?
Black wires are hot wires that run to the electrical outlet from the switch. Red wires are hot wires common in a 240-volt outlet or when a wall switch controls the outlet. Blue and yellow wires are hot wires for ceiling fans and three- or four-way switches. White or gray electrical wires are neutral wires.
What are the phase colours?
For three-phase cables the phase colours are brown, black and grey, instead of red, yellow and blue, respectively, and the neutral colour is now blue instead of black. Again the protective conductor is identified by the colour combination green-and-yellow.
What is colour code used for phase wire?
The commonly used color code is as follows: For a three-phase supply – Red, white and blue colours are used. For a single-phase supply – Red or brown is used for line and black or sky blue is used for neutral. For Earth or protective conductor – Green/Yellow or Green or bare copper conductor can be used.
What color are L and N wires?
US AC power circuit wiring color codes
| Function | label | Color, common |
|---|---|---|
| Protective ground | PG | bare, green, or green-yellow |
| Neutral | N | white |
| Line, single phase | L | black or red (2nd hot) |
| Line, 3-phase | L1 | black |
What color wire is L2?
The incoming circuit wires that provide the power are referred to as the line wires. L1 (line 1) is a red wire and L2 (line 2) is a black wire. Together, they show the motor voltage.
What colour wire goes into L1 and L2?
The yellow wire goes into the common terminal, red goes into the L1 terminal and blue goes into the L2 terminal. The grey wire goes in the common terminal, the brown wire goes in the L1 terminal and the black wire goes in the L2 terminal.
What are colours of 3 phase supply?
For three-phase cables the phase colours are brown, black and grey, instead of red, yellow and blue, respectively, and the neutral colour is now blue instead of black.
What do different color wires mean?
What color wires are L1 and L2?
L1 (line 1) is a red wire and L2 (line 2) is a black wire. Together, they show the motor voltage. Having both an L1 and L2 indicate that the motor voltage may be 240 volts.
What are the 3 kinds of conductors?
Of all the materials, the top three are silver, copper and aluminum. Silver is known to be the best conductor of electricity but it is not widely used for economic reasons.