Underground Duct Bank of Feeders

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dsewing

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Location
North Carolina
I am sizing conductors for an underground duct bank. The configuration I have dosn't match up with the details given in the NEC figure 310-60.
I have several of these to deal with each with a different configuration. Does anyone know of a software package that will calculate the conductor ampacity for a duct bank of any configuration I choose.

Thanks for the help
 
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