NEC Opinion



Yes, you can run from the meter to the basement for the lower unit with a main panel/disco, then run from the second meter outside the building up to the second floor unit with another main panel/disconnect.NEC References



Article 230.2

Each occupant must have access to the disconnecting means for their respective unit.

Article 230.71(A)

A building or structure that is divided into two or more occupancy units (such as a duplex) must have a disconnecting means for each unit.

Article 230.71(B)

The disconnecting means for each unit must be located in an accessible location outside the unit.

Additional Considerations

The conductors connecting the meter to the main panel/disco in the basement must be sized appropriately for the load of the lower unit. The conductors connecting the meter outside the building to the main panel/disconnect in the second floor unit must be sized appropriately for the load of the upper unit. The location of the meter and disconnecting means must comply with local codes and regulations.

Rationale:

The NEC allows for multiple disconnecting means in a building or structure with multiple occupancy units. This is necessary to ensure that each occupant has access to a disconnecting means for their respective unit. In the case of a duplex, each unit is considered a separate occupancy, so each unit must have its own disconnecting means.The location of the disconnecting means outside the unit is not specifically required by the NEC, but it is common practice and is often required by local codes. This is because it provides easy access for the utility company to disconnect the power to the unit in case of an emergency or for maintenance. Flag for review