I live in a agricultural area. Most farms have a common center pole service w/ triplex feeding the house, barn, garages, outbuildings, etc. They later get the idea of adding transfer switches at the centerpole. To do one of these correctly, are we talking about ocp at the pole w/ a transfer switch. Then replacing all of the triplex with quad. Then rewiring all of the panels to seperate the grounding & grounded conductors? The farming dollar here has been poor for some time. I don't see them going for this but I will not do an improper installation knowingly. I have seen countless installs just interupted into the service with 4/0 seu cable. Thoughts? Ideas?