All-Aluminum Conductor Characteristics
Characteristics of all-aluminum conductor (AAC)
All-aluminum conductor characteristics:
AWG | kcmil | Strands | Diameter (in) | GMR (ft) | Resistance (ohm/1000 ft) | Breaking Strength (lb) | Weight (lb/1000 ft) | ||
---|---|---|---|---|---|---|---|---|---|
dc 20°C | 60 Hz ac 25°C | 60 Hz ac 50°C | |||||||
6 | 26.2 | 7 | 0.184 | 0.0056 | 0.659 | 0.673 | 0.739 | 563 | 24.6 |
4 | 41.7 | 7 | 0.232 | 0.007 | 0.414 | 0.423 | 0.465 | 881 | 39.1 |
2 | 66.4 | 7 | 0.292 | 0.0088 | 0.260 | 0.266 | 0.293 | 1350 | 62.2 |
1 | 83.7 | 7 | 0.328 | 0.0099 | 0.207 | 0.211 | 0.232 | 1640 | 78.4 |
1/0 | 106 | 7 | 0.368 | 0.0111 | 0.164 | 0.167 | 0.184 | 1990 | 98.9 |
2/0 | 133 | 7 | 0.414 | 0.0125 | 0.130 | 0.133 | 0.146 | 2510 | 125 |
3/0 | 168 | 7 | 0.464 | 0.014 | 0.103 | 0.105 | 0.116 | 3040 | 157 |
4/0 | 212 | 7 | 0.522 | 0.0158 | 0.0817 | 0.0835 | 0.0917 | 3830 | 198 |
250 | 7 | 0.567 | 0.0171 | 0.0691 | 0.0706 | 0.0777 | 4520 | 234 | |
250 | 19 | 0.574 | 0.0181 | 0.0693 | 0.0706 | 0.0777 | 4660 | 234 | |
267 | 7 | 0.586 | 0.0177 | 0.0647 | 0.0663 | 0.0727 | 4830 | 250 | |
267 | 19 | 0.593 | 0.0187 | 0.0648 | 0.0663 | 0.0727 | 4970 | 250 | |
300 | 19 | 0.629 | 0.0198 | 0.0575 | 0.0589 | 0.0648 | 5480 | 281 | |
336 | 19 | 0.666 | 0.021 | 0.0513 | 0.0527 | 0.0578 | 6150 | 316 | |
350 | 19 | 0.679 | 0.0214 | 0.0494 | 0.0506 | 0.0557 | 6390 | 328 | |
398 | 19 | 0.724 | 0.0228 | 0.0435 | 0.0445 | 0.0489 | 7110 | 373 | |
450 | 19 | 0.769 | 0.0243 | 0.0384 | 0.0394 | 0.0434 | 7890 | 422 | |
477 | 19 | 0.792 | 0.025 | 0.0363 | 0.0373 | 0.0409 | 8360 | 447 | |
477 | 37 | 0.795 | 0.0254 | 0.0363 | 0.0373 | 0.0409 | 8690 | 447 | |
500 | 19 | 0.811 | 0.0256 | 0.0346 | 0.0356 | 0.039 | 8760 | 469 | |
500 | 37 | 0.813 | 0.026 | 0.0346 | 0.0356 | 0.039 | 9110 | 468 | |
557 | 19 | 0.856 | 0.027 | 0.0311 | 0.032 | 0.0352 | 9750 | 521 | |
557 | 37 | 0.858 | 0.0275 | 0.0311 | 0.032 | 0.0352 | 9940 | 521 | |
600 | 37 | 0.891 | 0.0285 | 0.0288 | 0.0297 | 0.0326 | 10700 | 562 | |
636 | 37 | 0.918 | 0.0294 | 0.0272 | 0.0282 | 0.0309 | 11400 | 596 | |
650 | 37 | 0.928 | 0.0297 | 0.0266 | 0.0275 | 0.0301 | 11600 | 610 | |
700 | 37 | 0.963 | 0.0308 | 0.0247 | 0.0256 | 0.028 | 12500 | 656 | |
700 | 61 | 0.964 | 0.031 | 0.0247 | 0.0256 | 0.028 | 12900 | 656 | |
716 | 37 | 0.974 | 0.0312 | 0.0242 | 0.025 | 0.0275 | 12800 | 671 | |
716 | 61 | 0.975 | 0.0314 | 0.0242 | 0.0252 | 0.0275 | 13100 | 671 | |
750 | 37 | 0.997 | 0.0319 | 0.023 | 0.0251 | 0.0263 | 13100 | 703 | |
750 | 61 | 0.998 | 0.0321 | 0.023 | 0.0251 | 0.0263 | 13500 | 703 | |
795 | 37 | 1.03 | 0.0328 | 0.0217 | 0.0227 | 0.0248 | 13900 | 745 | |
795 | 61 | 1.03 | 0.0331 | 0.0217 | 0.0227 | 0.0248 | 14300 | 746 | |
875 | 37 | 1.08 | 0.0344 | 0.0198 | 0.0206 | 0.0227 | 15000 | 820 | |
875 | 61 | 1.08 | 0.0347 | 0.0198 | 0.0206 | 0.0227 | 15800 | 821 | |
900 | 37 | 1.09 | 0.0349 | 0.0192 | 0.0201 | 0.022 | 15400 | 844 | |
900 | 61 | 1.09 | 0.0352 | 0.0192 | 0.0201 | 0.022 | 15900 | 844 | |
954 | 37 | 1.12 | 0.036 | 0.0181 | 0.0191 | 0.0208 | 16400 | 895 | |
954 | 61 | 1.13 | 0.0362 | 0.0181 | 0.0191 | 0.0208 | 16900 | 895 | |
1000 | 37 | 1.15 | 0.0368 | 0.0173 | 0.0182 | 0.0199 | 17200 | 937 | |
1000 | 61 | 1.15 | 0.0371 | 0.0173 | 0.0182 | 0.0199 | 17700 | 937 |
- 1 ft = 0.3048 m
- 1 kcmil = 1000 cmil = 785.4 10-6 in2 = 0.5067 mm2
GMR - Geometric Mean Radius - quantifies a conductor’s internal inductance. By definition the GMR is the radius of an infinitely thin tube having the same internal inductance as the conductor out to a one-foot radius. GMR is often in feet to ease the calculations with distances measured in feet. Note that the GMR is less than the actual conductor radius.
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