ECN Forum Forums Code Related Discussion NEC & other Code issues 310.15(B)(6) for underground conductors

Thanks, earlydean!

It is a pair of 150-amp panels, but the computed load is less than 200-amps.
I hope to use 230.90(A) exception 3.
Also 240.4(B) seems to permit 250 kcmil copper, which has an ampacity of 255 amps @ 75 deg.C to be protected at the next standard size OCPD, which is 300 ammps.

Thoughts?