I am a licensed electrician in Southern Louisiana. I have done only residential work. I contracted a night club with 15 foot ceilings, to be started in 2 weeks. This job requires 3 phase service, (2) 3 phase 7.5 ton HVAC units, and a single phase supply for lighting. My help (25 years experience, old school and unlicensed) is familuar with this application, but I am not. Could anyone recommend a book on commercial 3 phase application, from service installation to rough-in and trim out. All book publishers welcomed.