Table
SIZE |
| TEMPERATURE RATING OF CONDUCTOR | ||
AWG | 60°C |
| 60°C | 60°C |
KCMIL | (114°F) |
| (114°F) | (114°F) |
|
|
|
| TYPES |
|
|
|
| TBS, SA, |
|
|
|
| SIS, FEP*, |
|
|
|
| FEPB*, MI, |
|
|
|
| RHH*, |
|
|
| TYPES | THHN*, |
|
|
| THHW*, | |
|
|
| FEPW*, | |
|
|
| ||
|
|
| RH*, RHW*, | |
|
|
| THHW*, | |
|
|
| THW*, | XHH, |
| TYPES |
| THWN*, | XHHW* |
|
| XHHW*, | ||
| TW*, |
| ||
| UF* |
| USE*, ZW* | |
500 | 320 |
| 380 | 430 |
|
|
|
|
|
600 | 355 |
| 420 | 475 |
|
|
|
|
|
700 | 385 |
| 460 | 520 |
|
|
|
|
|
750 | 400 |
| 335 | 380 |
|
|
|
|
|
800 | 410 |
| 490 | 555 |
|
|
|
|
|
900 | 435 |
| 520 | 585 |
|
|
|
|
|
1000 | 455 |
| 545 | 615 |
|
|
|
|
|
1250 | 495 |
| 590 | 665 |
|
|
|
|
|
1500 | 520 |
| 625 | 705 |
|
|
|
|
|
1750 | 545 |
| 650 | 735 |
|
|
|
|
|
2000 | 560 |
| 665 | 750 |
|
|
|
|
|
For ambient temperatures other than 30C (86F), multiply
the allowable ampacities shown by the appropriate factor shown below.
1.08 | 1.05 | 1.04 | |
|
|
|
|
1.00 | 1.00 | 1.00 | |
|
|
|
|
.91 | .94 | .96 | |
|
|
|
|
.82 | .88 | .91 | |
|
|
|
|
.71 | .82 | .87 | |
|
|
|
|
.58 | .75 | .82 | |
|
|
|
|
.41 | .67 | .76 | |
|
|
|
|
.... | .58 | .71 | |
|
|
|
|
.... | .33 | .58 | |
|
|
|
|
.... | .... | .41 | |
|
|
|
|
*Unless otherwise specifically permitted in the code, as defined in the NEC document cited (ANSI/NEC 70), the overcurrent protection for conductor types marked with an asterisk (*) shall not exceed 15 amperes for No. 14, 20 amperes for No. 12, and 30 amperes for No. 10 copper, after any correction factors for ambient temperature and number of conductors have been applied.
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© 2006, ADC Telecommunications, Inc.