Would you use a multiple wire ciruit (three circuits run together with ballast connected to alternating phase with a 3 pole circuit breaker) for fluorescent lighting instead of a one phase circuit? A specific situation would be rows of strip lights in a store. (At 277V) one circuit would serve two rows. A three phase circuit would serve 6 or so rows. If the multi wire circuit were used, should the neutral be oversized because of possible harmonics due to the elecronic ballast?
