This Question came up ina recent exam:
" The following set of conductors are to be run in a rigid PVC conduit for a 347/600V . 3 phase feeder.
three #3/0 R90(xlpe)
one #3 R90(XLPE)
one #6 TW75 bonding conductor
What is the maximum ampacity rating of the feeder being fed by the three #3/0 R90 conductors"
Based on Table 2 CEC #3/0 is 210
210* .8=168 Amp
However the correct answer is 210. Based on how the question is put I still think the answer is 168. Am I missing something?
" The following set of conductors are to be run in a rigid PVC conduit for a 347/600V . 3 phase feeder.
three #3/0 R90(xlpe)
one #3 R90(XLPE)
one #6 TW75 bonding conductor
What is the maximum ampacity rating of the feeder being fed by the three #3/0 R90 conductors"
Based on Table 2 CEC #3/0 is 210
210* .8=168 Amp
However the correct answer is 210. Based on how the question is put I still think the answer is 168. Am I missing something?