Toros
Senior Member
- Location
- Tujunga, CA
Hi, lets says,I have to run (4) #12 cu., thhn conductor 1n a emt conduit. do I have to look in 10-15B3a and 90 deg. column in 310.15B16 and do this calc; Ampacity of #12 wire is 30A @ 90 degree than it becomes 30A x .8 (Adj. fact.)= 24A OR #12 thhn,cu @ 86degr: than becomes 20A x .8 (Adj. fact.)=16A ????? thank you