Isaiah
Senior Member
- Location
- Baton Rouge
- Occupation
- Electrical Inspector
I’ve got number 4, 3/C #12 AWG XHHW-2, 90 Degree C, in a RGS conduit.
These are for 3 phase, 460V induction motors at 12FLA each.
My understanding is the ampacity adjustment factor should be against the 30A, not against the 20A per 310.16 and 240.4(D).
So 4, 3phase motors x 12 current carrying conductors would mean an adjustment of 50% per 310.15(C)(1) or 15A per cable. Is this correct?
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These are for 3 phase, 460V induction motors at 12FLA each.
My understanding is the ampacity adjustment factor should be against the 30A, not against the 20A per 310.16 and 240.4(D).
So 4, 3phase motors x 12 current carrying conductors would mean an adjustment of 50% per 310.15(C)(1) or 15A per cable. Is this correct?
Sent from my iPhone using Tapatalk