Currently I have a detached garage about six feet from the closest wall of the house. The current garage electrical system is served by a sub panel (located in the garage) via a conduit from the 200 amp house panel and has two 20 amp circuits and includes a ground rod. This 40 amp service far exceeds the current calculated load for the garage. This panel serves all the outlets currently in the detached garage. The entire wire run to the garage sub panel from the house panel is no more than 30 feet.
I would like to install a 60 amp electric vehicle recharging outlet in my garage.
Is the following a legal possibility?:
I have a vacant 60 amp breaker in my house panel which formerly served a electric furnace (I have since gotten a natural gas furnace). There is also a considerable length of left over # 6 wire that served the uninstalled electric furnace which might come in handy for the project I have in mind.
Here is my question:
Could I run a separate circuit from there to the garage through its own properly entrenched and properly scheduled conduit to its own outlet in the garage and (if necessary) through its own disconnect and or separate sub panel?
Or must the electrical service to any outbuilding have ONLY one disconnect