mariomanansala
Member
- Location
- Southern California
I have a motor load with a nameplate rating of 850 amps at 6.9kv. i will use three sets of three conductor MV 105 deg C cables which will run 380' in a cable tray and 20' in conduits.
Do I have to use 750kcmil per Table 310.60(C)(79)(Three Circuits) subject to temperature correction? Or can I use 250kcmil per NEC Table 310.60(C)(71) and NEC Sections 310.60(B)(1) Exception and 392.80B?
Do I have to use 750kcmil per Table 310.60(C)(79)(Three Circuits) subject to temperature correction? Or can I use 250kcmil per NEC Table 310.60(C)(71) and NEC Sections 310.60(B)(1) Exception and 392.80B?