Twist wires together at the ends to connect them.
Green yellow ground wire.
Hot active wires may be any other colors except these.
Twist like wires together if there are any.
Any other colors can be used for hot phase wires.
Same as for ac the mandatory colors for grounded neutral is white or gray the protective ground wire color should be green bare conductor or yellow green yellow strip on green color.
Blue and yellow wires are sometimes used as hot wires and as travelers green wires and bare copper wires are ground wires and white and gray wires are neutral.
But looking deeper the color of the wires inside of the sheathing reveals that different colored wires serve different purposes.
However all electrical wires regardless of their function may carry an electrical current at some point and should be treated with equal caution.
In virtually all cases it s insulated copper wire with a covering that s green or green with a yellow stripe.
The recommendations in table below are by wiles.
Beyond that are general industry accepted rules about wire color that indicate their purpose.
That being said sometimes live wires are red and ground wires are coated in green.
Bare stranded or flexible ec grade high purity copper iec 60228 is 8130 special pvc for earthing green yellow earth wire cable for grounding.
Neutral would be white ground wires are either green or green with a yellow tracer.
Gray is the neutral color grounds are green and green w yellow tracer.
Understanding the green ground wire.
The top countries of suppliers are india china and india from which the percentage of green yellow ground wire supply is 1 98 and 1 respectively.
These codes apply on both ac and dc power circuits.
Some systems over the years have also used uninsulated single strand heavy gauge copper wire or flat copper strips run along the top of structural stringers.
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.
Brown orange and yellow are all current carrying conductors used on voltages up to 480v.
However common practice per local electrical inspectors is for the first hot live or active wire to be black and the second hot to be red.