By txsparky
250.119 (B) says "where the conditions of maintenance and supervision ensure that only qualified persons service the installation. "
I understand what you are getting at, but that is a pretty vague code, that is left in the hands of the inspector to determine.
In my area "commercial type" buildings or buildings with management usually will be treated as supervised by management who will hire electricians to do the work, much like the exception to 230.72(C)
But I agree that some inspectors would consider this installation outside the scope of 250.119(B)
