g
GE
NEC SECTION
Table
| Size |
| Temperature Rating of Conductor (See table |
| |||
|
| 60°C (140°F) | 75°C (167°F) | 90°C (194°F) | 60°C (140°F) | 75°C (167°F) | 90°C (194°F) |
|
| Types | Types | Types | Types | Types | Types |
|
| TW, UF | FEPW, RH, | TBS, SA, SIS, | TW, UF | RH, RHW, | TBS, SA, SIS, |
|
|
| RHW, THHW, | FEP, FEPB, MI, |
| THHW, | THHN, THHW, |
| AWG |
| THW, THWN, | RHH, |
| THW, THWN, | |
| or |
| XHHW, USE, | THHN, THHW, |
| XHHW, USE | |
| kcmil |
| ZW |
|
| ||
|
|
|
|
|
| XHH, XHHW, | |
|
|
|
| XHH, XHHW, |
|
| |
|
|
|
|
|
| ||
|
|
| COPPER |
| ALUMINUM or | ||
| 18 | 14 | |||||
| 16 | 18 | |||||
| 14 | 20 | 20 | 25 | |||
| 12 | 25 | 25 | 30 | 20 | 20 | 25 |
| 10 | 30 | 35 | 40 | 25 | 30 | 35 |
| 8 | 40 | 50 | 55 | 30 | 40 | 45 |
| 6 | 55 | 65 | 75 | 40 | 50 | 60 |
| 4 | 70 | 85 | 95 | 55 | 65 | 75 |
| 3 | 85 | 100 | 110 | 65 | 75 | 85 |
| 2 | 95 | 115 | 130 | 75 | 90 | 100 |
| 1 | 110 | 130 | 150 | 85 | 100 | 115 |
| 1/0 | 125 | 150 | 170 | 100 | 120 | 135 |
| 2/0 | 145 | 175 | 195 | 115 | 135 | 150 |
| 3/0 | 165 | 200 | 225 | 130 | 155 | 175 |
| 4/0 | 195 | 230 | 260 | 150 | 180 | 205 |
| 250 | 215 | 255 | 290 | 170 | 205 | 230 |
| 300 | 240 | 285 | 320 | 190 | 230 | 255 |
| 350 | 260 | 310 | 350 | 210 | 250 | 280 |
| 400 | 280 | 335 | 380 | 225 | 270 | 305 |
| 500 | 320 | 380 | 430 | 260 | 310 | 350 |
| 600 | 355 | 420 | 475 | 285 | 340 | 385 |
| 700 | 385 | 460 | 520 | 310 | 375 | 420 |
| 750 | 400 | 475 | 535 | 320 | 385 | 435 |
| 800 | 410 | 490 | 555 | 330 | 395 | 450 |
| 900 | 435 | 520 | 585 | 355 | 425 | 480 |
| 1000 | 455 | 545 | 615 | 375 | 445 | 500 |
| 1250 | 495 | 590 | 665 | 405 | 485 | 545 |
| 1500 | 520 | 625 | 705 | 435 | 520 | 585 |
| 1750 | 545 | 650 | 735 | 455 | 545 | 615 |
| 2000 | 560 | 665 | 750 | 470 | 560 | 630 |
|
|
|
| CORRECTION FACTORS |
|
| |
| Ambient | For ambient temperatures other than 30°C (86°F), multiply the allowable ampacities shown above by the | |||||
| Temp. (°C) |
|
| appropriate factor below |
|
| |
| 21 - 25 | 1.08 | 1.05 | 1.04 | 1.08 | 1.05 | 1.04 |
| 26 - 30 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| 31 - 35 | 0.91 | 0.94 | 0.96 | 0.91 | 0.94 | 0.96 |
| 36 - 40 | 0.82 | 0.88 | 0.91 | 0.82 | 0.88 | 0.91 |
| 41 - 45 | 0.71 | 0.82 | 0.87 | 0.71 | 0.82 | 0.87 |
| 46 - 50 | 0.58 | 0.75 | 0.82 | 0.58 | 0.75 | 0.82 |
| 51 - 55 | 0.41 | 0.67 | 0.76 | 0.41 | 0.67 | 0.76 |
OPM_SGS_ISG_M22_M30_0US_V011.doc | 20/38 | Installation Guide SG Series 225 & 300 kVA |