What are Colour coding conductors?
The National Electrical Code (NEC) says that white or gray must be used for neutral conductors and that bare copper or green wires must be used as ground wires. Beyond that are general, industry-accepted rules about wire color that indicate their purpose.
What are the acceptable colors of the grounding conductor NEC?
Equipment grounding conductors can be bare, covered, or insulated. Insulated equipment grounding conductors size 6 AWG and smaller must have a continuous outer finish either green or green with one or more yellow stripes, in conformance with 250.119 [210.5(B)].
What are the color code for positive conductors?
red
Wire Colors for DC Power The coloring is as follows: Positive – The wire for the positive current is red. Negative – The wire for the negative current is black. Ground – The ground wire (if present) will be white or grey.
Can I re identify white conductors?
The white conductor within a cable can be used for the ungrounded conductor, if permanently re-identified by marking tape, painting, or other effective means at each location where the conductor is visible to indicate its use as an ungrounded conductor.
What is the color code for electric wire?
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 3 colors are ungrounded conductors not permitted to be?
The white conductor within a cable can be used for the ungrounded conductor if permanently reidentified at each location where the conductor is visible to indicate its use as an ungrounded conductor. Identification must encircle the insulation and must be a color other than white, gray, or green.
What color should flexible ground conductor be?
3. Flexible Cords. An insulated conductor that is intended for use as a grounded conductor, where contained within a flexible cord, must be identified by a white or gray outer finish or by methods permitted by 400.22.
What service conductor may be bare green or green with a yellow stripe?
Grounding conductors
Grounding conductors can be bare (no insulation), or with an insulation color of green or green with a yellow stripe. Remember, a grounding conductor is not a “circuit conductor”.
What color is the grounded conductor?
A Grounded Conductor is usually identified with the color white, although it can be gray. If the conductor is size 6 AWG or smaller, it must be solid in color or identified with three continuous stripes of color for the entire length of the conductor.