ACAR
Bare overhead conductor used as transmission cable and as primary and secondary distribution cable. A good strength-to-weight ratio makes ACAR applicable where both ampacity and strength are prime considerations in line design; for equal weight, ACAR offers higher strength and ampacity than ACSR.
Construction
What it's built from
- Construction
- Aluminum alloy 1350-H19 wires, concentrically stranded around an aluminum alloy 6201 core. Although the alloy strands generally comprise the core of the cable, in some constructions they are distributed in layers throughout the aluminum alloy 1350-H19 strands.
Technical specifications
Sizes & ratings
ACAR – ASTM B-524
| Size (kcmil) | Stranding (1350/6201) | 1350 strand (in) | 6201 strand (in) | Cable dia. (in) | Weight (lbs/kft) | Rated strength (lbs) | DC @ 20ºC (Ω/kft) | AC @ 75ºC (Ω/kft) | Allowable ampacity* (A) |
|---|---|---|---|---|---|---|---|---|---|
| 355.0 | 12/7 | 0.1367 | 0.1367 | 0.683 | 332 | 8,500 | 0.0514 | 0.0624 | 519 |
| 465.9 | 12/7 | 0.1566 | 0.1566 | 0.783 | 436 | 11,000 | 0.0392 | 0.0477 | 616 |
| 503.6 | 12/7 | 0.1628 | 0.1628 | 0.814 | 471 | 11,900 | 0.0362 | 0.0441 | 646 |
| 653.1 | 12/7 | 0.1854 | 0.1854 | 0.927 | 611 | 15,400 | 0.0279 | 0.0342 | 760 |
| 739.8 | 30/7 | 0.1414 | 0.1414 | 0.99 | 693 | 15,300 | 0.0240 | 0.0296 | 831 |
| 739.8 | 18/19 | 0.1414 | 0.1414 | 0.99 | 692 | 18,800 | 0.0252 | 0.0308 | 814 |
| 853.7 | 30/7 | 0.1519 | 0.1519 | 1.063 | 799 | 17,500 | 0.0208 | 0.0257 | 907 |
| 853.7 | 18/19 | 0.1519 | 0.1519 | 1.063 | 798 | 21,500 | 0.0218 | 0.0268 | 890 |
| 927.2 | 30/7 | 0.1583 | 0.1583 | 1.108 | 868 | 19,000 | 0.0192 | 0.0238 | 955 |
| 927.2 | 18/19 | 0.1583 | 0.1583 | 1.108 | 867 | 23,400 | 0.0201 | 0.0247 | 936 |
| 1024.5 | 30/7 | 0.1664 | 0.1664 | 1.165 | 959 | 20,900 | 0.0173 | 0.0216 | 1,015 |
| 1024.5 | 18/19 | 0.1664 | 0.1664 | 1.165 | 958 | 25,800 | 0.0182 | 0.0225 | 995 |
| 1081.0 | 30/7 | 0.1709 | 0.1709 | 1.196 | 1,012 | 22,100 | 0.0164 | 0.0205 | 1,048 |
| 1081.0 | 18/19 | 0.1709 | 0.1709 | 1.196 | 1,011 | 27,200 | 0.0172 | 0.0213 | 1,028 |
| 1109.0 | 30/7 | 0.1731 | 0.1731 | 1.212 | 1,038 | 22,700 | 0.0160 | 0.0200 | 1,065 |
| 1109.0 | 18/19 | 0.1731 | 0.1731 | 1.212 | 1,037 | 27,900 | 0.0168 | 0.0208 | 1,044 |
| 1172.0 | 30/7 | 0.1780 | 0.1780 | 1.246 | 1,097 | 24,000 | 0.0152 | 0.0190 | 1,101 |
| 1172.0 | 18/19 | 0.1780 | 0.1780 | 1.246 | 1,096 | 29,500 | 0.0159 | 0.0198 | 1,080 |
| 1197.0 | 30/7 | 0.1799 | 0.1799 | 1.259 | 1,121 | 24,500 | 0.0148 | 0.0187 | 1,115 |
| 1197.0 | 18/19 | 0.1799 | 0.1799 | 1.259 | 1,119 | 30,200 | 0.0156 | 0.0194 | 1,094 |
| 1280.0 | 30/7 | 0.1860 | 0.1860 | 1.302 | 1,199 | 26,200 | 0.0139 | 0.0175 | 1,160 |
| 1280.0 | 18/19 | 0.1860 | 0.1860 | 1.302 | 1,197 | 32,200 | 0.0146 | 0.0182 | 1,139 |
| 1361.0 | 42/19 | 0.1494 | 0.1494 | 1.344 | 1,274 | 30,300 | 0.0133 | 0.0168 | 1,196 |
| 1527.0 | 42/19 | 0.1582 | 0.1582 | 1.424 | 1,429 | 33,600 | 0.0118 | 0.0151 | 1,314 |
| 1703.0 | 42/19 | 0.1671 | 0.1671 | 1.504 | 1,594 | 37,500 | 0.0106 | 0.0137 | 1,363 |
| 1933.0 | 42/19 | 0.1780 | 0.1780 | 1.602 | 1,809 | 42,500 | 0.00936 | 0.0123 | 1,465 |
| 2267.0 | 42/19 | 0.1928 | 0.1928 | 1.735 | 2,142 | 49,900 | 0.00806 | 0.0108 | 1,594 |
| 2493.0 | 72/19 | 0.1655 | 0.1655 | 1.821 | 2,357 | 50,400 | 0.00722 | 0.0099 | 1,687 |
| 2493.0 | 54/37 | 0.1655 | 0.1655 | 1.821 | 2,355 | 57,600 | 0.00743 | 0.0101 | 1,670 |
* Current ratings based on 75°C conductor temperature, 25°C ambient, 2 ft/sec wind in sun. ** DC resistance based on 61.2% IACS for 1350-H19 wires. All values are nominal and subject to correction.
Standards
Referenced specifications
- ASTM B-230 Aluminum 1350-H19 Wire for Electrical Purposes
- ASTM B-398 Aluminum-Alloy 6201-T81 Wire for Electrical Purposes
- ASTM B-524 Concentric-Lay-Stranded Aluminum Conductors, Aluminum Alloy Reinforced (ACAR, 1350/6201)
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