How can you hook up a temporary chiller to an existing building utilizing the buildings power if article 402 prevents you from passing temporary cable through doorways, or holes in walls?
I believe the prohibition in 400.8 for cords and cables passing through doorways is modified by 590.4(H).
590.4(H) Protection from Accidental Damage. Flexible cords
and cables shall be protected from accidental damage.
Sharp corners and projections shall be avoided. Where
passing through doorways or other pinch points, protection
shall be provided to avoid damage.