How three phase math works (277 + 277 = 480?)

Studying for the electrician Red Seal? Take the free diagnostic to find your weak spots: https://redsealdiagnostic.netlify.app Why does 277 + 277 = 480 in three phase power? This video breaks down the math behind three phase voltage relationships so it actually makes sense. No hand-waving. No skipping steps. Just a clear explanation of how line and phase voltages connect using real numbers. If you're an electrical apprentice studying for your exams or a journeyperson brushing up, this is the kind of theory that trips people up. It doesn't have to. Topics covered: Three phase voltage relationships Line voltage vs phase voltage Why the square root of 3 matters The math behind 277V and 480V systems Want to go deeper into AC theory? Check out the full AC Generation course on The Electric Academy. Step-by-step video lessons, practice problems, and workbooks built for apprentices. https://app2ceo.thinkific.com/courses... Subscribe for more electrical theory videos every week. #threephasepower #electricaltheory #electricalapprenticeship #actheory #480volt #277volt #electricaltraining #theelectricacademy