>However, NEC's stated purpose is "the practical safeguarding of persons and property..." 90-1(a).
If excessive voltage drop would cause operating problems in any equipment that is required for safety, then a case could be made for installing larger conductors.
If it were necessary for safety, then I would insist upon it.
But my point was that it is not necessary for safety (perhaps I should have said it that way directly). So the only problems I see is if the AHJ requires a different calculation (e.g., 180 W per fixture) or someone someday actually puts 150 W bulbs in many of the fixtures (a voltage drop will occur).
I was not suggesting ignoring the code or anything else dumb!
