Was it wired with 10-2 SE cable or 10-2 NM cable? If it was NM cable then the cable should be replaced with a 10-3 cable. It has never been permissible to use the bare wire of type NM cable as the grounded conductor (neutral). If 10-2 SE cable was used you may be OK since the bare wire of 2 conductor SE cable can be used as a grounded conductor. Does this circuit originate from the service panel or a sub panel? If it is coming from a sub panel the bare wire should not be connected to the equipment ground buss in the sub panel.
Curt
