Larry:
The second part of your reply basically falls into the following scenario:
Cabling from one piece of equipment to other equipment of the same system, in trays, would require 'listed' trays, bonding, and cabling. The methods and materials used to terminate cabling may have a 'look' by an inspector. IF the cabling is 'plug & play' type, I would just give it a glance, as it would be out of the NEC boundries.
Please note that the opinions herein are my personal opinions, based on guidelines within the NJ UCC, and may be different in other jurisdictions.
A 'short' wording of the regs is 'process equipment stops at the disconnects of the feeder at the equipment, and the fees imposed are only for the feeder and disconnect if it is NOT within the equipment. However ALL 'parts' of said system that are hard wired (NEC) are required to be within the permit app, and appropriate fees and inspections are required. (My words and not a direct quote)
Determination within my jurisdiction is part of the plan review, release, and permit issuing process.
