How about this, we bidded based on the print we were given. You made mistake not us. Yes we must meet nec and that is an extra if mr engineer made mistake. So not our problem. You draw up the new plans and get them approved. Not the EC problem its all yours.
You are correct. I did not say that the EC needs to pay for it, just that he can offer a creative solution to the architect that is acceptable to him.
As far as the OP question:
Article 100, Definitions:
I. General
Accessible (as applied to equipment).
Admitting close approach; not guarded by locked doors, elevation, or other effective means.
Accessible, Readily (Readily Accessible).
Capable of being reached quickly for operation, renewal, or inspections without requiring those to whom ready access is requisite to climb over or remove obstacles or to resort to portable ladders, and so forth.
ARTICLE 110? REQUIREMENTS FOR ELECTRICAL INSTALLATIONS
II. 600 Volts, Nominal, or Less
110.26 Spaces About Electrical Equipment.
Sufficient access and working space shall be provided and maintained about all electrical equipment to permit ready and safe operation and maintenance of such equipment.
(A) Working Space.
Working space for equipment operating at 600 volts, nominal, or less to ground and likely to require examination, adjustment, servicing, or maintenance while energized shall comply with the dimensions of 110.26(A)(1), (A)(2), and (A)(3) or as required or permitted elsewhere in this Code.
(1) Depth of Working Space.
The depth of the working space in the direction of live parts shall not be less than that specified in Table 110.26(A)(1) unless the requirements of 110.26(A)(1)(a), (A)(1)(b), or (A)(1)(c) are met. Distances shall be measured from the exposed live parts or from the enclosure or opening if the live parts are enclosed.