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Duct Bank Ampacity

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Victor Erick

New User
Location
canada
Occupation
Engineer
Hi everyone

I want to make a duct bank ampacity calculation, It is to feed a transformer at 34.5kv.
I see that the CEC gives some configurations to obtain the ampacity and mentions that if the arrangement I want to calculate is not in the configurations I should consult with the supplier, but I don't know if it is possible for a preliminary calculation, select some table from the CEC and use the IEEE 399 factors (Ft, Fth and Fg) to obtain a preliminary size.

In the NEC I understand that the 310.60(C)(79) table is used and then the IEEE 399 factors are used(Ft, Fth and Fg).

The cable to be used will be C-L-X Type MV-105

I appreciate your support

Thank you
 
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