![]() ![]() “Green-yellow” refers to green with yellow stripes. The protective ground must be either green, green-yellow, or bare copper. In the United States, the National Electrical Code (NEC) mandates electrical wiring color codes for the protective ground. In cases where there are no legal requirements, specific colors have been adopted as local practice and are recommended. Most countries have a governing organization that implements color coding requirements for electrical wiring. Who regulates color coding for DC circuits? In this article, you’ll find a guide for international wire color coding of DC power circuits. ![]() In our last article, we discussed International Color Coding for AC Power Circuits. Color coding for DC power circuit wiring depends on the function and the location (country) of the wiring. Many computer systems, solar power systems, electronics, automotive applications, and telecommunications systems run off of DC (Direct Current) power supply. ![]()
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