O.K. here's the deal. 3-pole 30amp 480v breaker is tripping on overload. A phase-8 amps, B phase-8 amps, C phase-42 amps. I'm thinking that there's a bad connection in the field somewhere causing the imbalance but I'm not sure. This is a brand new install, so the contractor is contractually responsible for any issues that arise within 1 year. Based on the as-builts, each phase should be drawing around 18 amps. What else would cause these type of readings? Bad ballast? Thanks in advance.