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Electrical wire color codes every electrician should know ⚑ πŸ”Ή 120/208V (3Ø, 4-wire) β€’ Black – Phase A (L1) β€’ Red – Phase B (L2) β€’ Blue – Phase C (L3) β€’ White – Neutral β€’ Green – Ground πŸ”Ή 277/480V (3Ø, 4-wire) β€’ Brown – Phase A (L1) β€’ Orange – Phase B (L2) β€’ Yellow – Phase C (L3) β€’ Gray – Neutral β€’ Green – Ground ⚠️ Always verify on site β€” the NEC doesn’t mandate colors, but inspectors expect consistency and proper identification. πŸ’‘ Remember: BRB = 120/208 BOY = 277/480 Follow @AboveElectricTr
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