I stopped reading after looking at fig 4. The 10AM wire temp is 194 degree F (90 degree C). This is amazing since the power has just been turned on after being off for over 12 hours. I expect the data is simply wrong.
(My engineering shows a 2.33" dia bundle is safe. Note I did not say hole. A 1-1/2"dia x 3-1/2" long hole, the size used in the test, is safe according to the code.)
