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why 277 volts for lighting?
Why do so many commercial buildings use 277 volts for their fluorescent and metal halide lighting power? Much of the surplus light fixures one comes across are 277 volts. I don't understand this. Is the concept that you get 277 volts across 2 legs of 3 phase power? I don't think that is the...- lkasdorf
- Thread
- Replies: 10
- Forum: Electric power & transmission & distribution
