Just connect the dedicated circuit ground back to the main panel.
A quick call to your local municipality will tell you whether you can do otherwise legally. Keep in mind that local electrical codes may add to national codes.
Romex is a brand name but it's often used as a generic name for your basic, standard house wire. BX cable is simply wire in a flexible metal sheathing. It's typically used in garages or inside a house when the wire is not buried in the wall, but is surface mounted. This is often done in older heritage homes that are retrofitted with electricity. Rather than rip up wall or ceiling plaster, surface mounted electrical cables and metal receptacle boxes are used. BX is a flexible metal conduit. Alternatively, rigid metal conduit is used.
A quick call to your local municipality will tell you whether you can do otherwise legally. Keep in mind that local electrical codes may add to national codes.
Romex is a brand name but it's often used as a generic name for your basic, standard house wire. BX cable is simply wire in a flexible metal sheathing. It's typically used in garages or inside a house when the wire is not buried in the wall, but is surface mounted. This is often done in older heritage homes that are retrofitted with electricity. Rather than rip up wall or ceiling plaster, surface mounted electrical cables and metal receptacle boxes are used. BX is a flexible metal conduit. Alternatively, rigid metal conduit is used.