Thanks Hotline. The commentary at the bottom of 2008 NEC Handbook page 483 (step 3, Termination analysis) is still confusing for me because it verifies the compliance of the application example using Table 310.16.
In my example (120/240V 200 amp power cord) with no applicable derating factors and using the 75 degree column in Table 400.5, using table 310.16 for verification as the commentary suggests would not result in compliance for 1/0 conductors.