Un fused conductors present a problem, I believe that is why the language in 230.70 suggests that the service equipment be located "at a readily accessible location either outside of a building or structure or inside nearest the point of entrance of the service conductors".
230.50 Protection of Open Conductors and Cables Against Damage — States that Service-entrance conductors installed above ground shall be protected against physical damage.
Who determines if the cable is subject to physical damage??
Most installers would say it is obvious.
