iwire,
That is why I wonder why it would truly be unsafe to run a "proportionally increased" EGC for smaller circuits that have been upsized for voltage drop.
Unless my math is off, further calculations reveal that:
60 amp ckt-- EGC = 40% circuit conductor size
100 amp ckt. 32%
200 amp ckt. 16%
300 amp ckt. 12%
I would suggest a conservative 40% ratio of increased EGC comared to increased circuit conductors, for smaller circuits, up to 60 amps.
Could this possibly be based on whatever engineering data was used to generate Table 250.122?
