odicisImage: odicisInternational DC wiring color codes call for greenish-yellow ground wires, brown positive wires and gray negative wires. Blue wires are used for the mid-wires in a three-wire grounded circuit. The International Electrotechnical Commission sets the wiring coloring codes for most of Europe, including the United Kingdom. For the most part, DC wiring follows the color codes established for AC wiring. What Is the International Color Code for DC Wiring Is this answer helpful?Thanks!Give more feedbackThanks!How can it be improved?How can the answer be improved?Tell us how Wiring Color Codes | Color Codes | Electronics Textbook wwwboutcircuits››Vol. V - Reference›Color CodesChapter 2 - Color Codes. IEC, AC: Most of Europe abides by IEC (International Electrotechnical Commission) wiring color codes for AC branch circuits. These are listed in Table below. The older color codes in the table reflect the previous style which did not account for proper phase rotation. The protective ground wire (listed as green-yellow) is green with yellow stripe. What Is the International Color Code for DC Wiring wwwrence›ElectricalFull Answer. For the most part, DC wiring follows the color codes established for AC wiring. The United States uses its own color codes for AC and DC wiring. For DC wiring, the protective ground wire is green or greenish-yellow, negative wires are black, positive wires are red, and white wires are used as the mid-wires in a three-wire grounded circuit.