AAAC
Bare overhead conductor used for primary and secondary transmission and distribution. Designed utilizing a high-strength aluminum alloy to achieve a high strength-to-weight ratio; better sag characteristics. AAAC has higher resistance to corrosion than ACSR.
Construction
What it's built from
- Construction
- Standard 6201-T81 high strength aluminum conductors, conforming to ASTM specification B399, are concentric-lay-stranded, similar in construction and appearance to 1350 grade aluminum conductors.
- Abrasion
- Conductors of the 6201-T81 alloy have a greater resistance to abrasion than conductors of 1350-H19 grade aluminum.
Technical specifications
Sizes & ratings
AAAC – ASTM sizes
| Code word | Size (kcmil) | No. of wires | Strand dia. (in) | Cable dia. (in) | Area (sq. in) | Weight (lbs/kft) | Rated breaking strength (lbs) | DC @ 20ºC (Ω/kft) | AC @ 75ºC (Ω/kft) | Ampacity* (A) |
|---|---|---|---|---|---|---|---|---|---|---|
| Akron | 30.58 | 7 | 0.0661 | 0.1980 | 0.0240 | 29 | 1,110 | 0.6588 | 0.7850 | 107 |
| Alton | 48.69 | 7 | 0.0834 | 0.2500 | 0.0382 | 45 | 1,760 | 0.4139 | 0.4930 | 143 |
| Ames | 77.47 | 7 | 0.1052 | 0.3160 | 0.0608 | 72 | 2,800 | 0.2601 | 0.3100 | 191 |
| Azusa | 123.3 | 7 | 0.1327 | 0.3980 | 0.0968 | 115 | 4,270 | 0.1635 | 0.1950 | 256 |
| Anaheim | 155.4 | 7 | 0.1490 | 0.4470 | 0.1221 | 145 | 5,390 | 0.1297 | 0.1540 | 296 |
| Amherst | 195.7 | 7 | 0.1672 | 0.5020 | 0.1537 | 183 | 6,790 | 0.1030 | 0.1230 | 342 |
| Alliance | 246.9 | 7 | 0.1878 | 0.5630 | 0.1939 | 230 | 8,560 | 0.0816 | 0.0973 | 395 |
| Butte | 312.8 | 19 | 0.1283 | 0.6420 | 0.2456 | 292 | 10,500 | 0.0644 | 0.0769 | 460 |
| Canton | 394.5 | 19 | 0.1441 | 0.7210 | 0.3098 | 368 | 13,300 | 0.0511 | 0.0610 | 532 |
| Cairo | 465.4 | 19 | 0.1565 | 0.7830 | 0.3655 | 434 | 15,600 | 0.0433 | 0.0518 | 590 |
| Darien | 559.5 | 19 | 0.1716 | 0.8580 | 0.4394 | 522 | 18,800 | 0.0360 | 0.0420 | 663 |
| Elgin | 652.4 | 19 | 0.1853 | 0.9270 | 0.5124 | 608 | 21,900 | 0.0309 | 0.0371 | 729 |
| Flint | 740.8 | 37 | 0.1414 | 0.9910 | 0.5818 | 691 | 24,400 | 0.0272 | 0.0327 | 790 |
| Greeley | 927.2 | 37 | 0.1583 | 1.1080 | 0.7282 | 865 | 30,500 | 0.0217 | 0.0263 | 908 |
* Current ratings are based on 75ºC conductor temperature, 25ºC ambient, 2ft/s wind, in sun. All values are nominal and subject to correction. Resistance at 52.5% IACS, AC resistance at 60 Hz.
Standards
Referenced specifications
- ASTM B-398 Aluminum Alloy 6201-T81 and 6201-T83 Wire for Electrical Purposes
- ASTM B-399 Concentric-Lay-Stranded Aluminum Alloy 6201-T81 Conductors
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