Nec Cable Ampacity: copper_hightemp_freeair
NEC (NFPA 70) cable ampacity ratings — allowable current for copper and aluminum conductors at 60/75/90°C insulation ratings in raceways and free air; high-temperature conductor ampacity at 150/200/250°C; ambient temperature correction factors; conductor fill adjustment factors
| conductor material | conductor size | ampacity 150C type Z (A) | ampacity 200C types FEP FEPB PFA SA (A) | ampacity 250C types PFAH TFE (A) | installation | nec table | standard |
|---|---|---|---|---|---|---|---|
| copper_hightemp_freeair | 310.15B19#1 AWG | 293 | 344 | 440 | free_air | 310.15(B)(19) | NEC (NFPA 70) 2017 Edition Table 310.15(B)(19) |
| copper_hightemp_freeair | 310.15B19#1/0 AWG | 339 | 399 | 532 | free_air | 310.15(B)(19) | NEC (NFPA 70) 2017 Edition Table 310.15(B)(19) |
| copper_hightemp_freeair | 310.15B19#10 AWG | 80 | 90 | 107 | free_air | 310.15(B)(19) | NEC (NFPA 70) 2017 Edition Table 310.15(B)(19) |
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