Take a look at 250-114 The main rule and the exception immediately after - then items 1 and 2 further discribing the main rule - then two additional exceptions (are they talking about only equipment that operates over 150 volts to ground? I think so!) (3) is a subsection to residential occupancies a through e - no exceptions here but in subsection (4) watch out, the exception comes after "g" but is written for the entire subsection (4).
The rule of thumb used to be that the exception included all written material within a subsection or a main code numbered article whichever came first.
I believe you are right, Bill, a further investigation is needed and you are the person to do it.
