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Electrical Technology - Electrical Wiring Color Codes for AC & DC - NEC, IEC & Other Countries & Regions Full Details and Explanation: https://bit.ly/3iyeqEU | Facebook
![wiring - Red for +ve, black for 0v, ...which colour for -ve rail? - Electrical Engineering Stack Exchange wiring - Red for +ve, black for 0v, ...which colour for -ve rail? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/TnTLJ.png)