Bare Aluminum Conductor Transmission line ACSR duck conductor Based
on Standard 16~1250mm IEC61089
ACSR Conductor APPLICATION
ACSR conductors are widely used for electrical power transmission
over long distances, since they are ideal for long overhead lines
spans. They are also used as a messenger for supporting overhead
electrical cables.
Strands
When selecting stranded wire, it is important to specify the number
of strands which make up the conductor. Wires with a high amount of
strands are more flexible than those with a lesser amount.
Conductor wire typically has at least 7 strands: one in the middle
with 6 surrounding strands. More flexible wires commonly have 19,
37, or 49 strands. Very large wires, or those manufactured for very
flexible applications, may have 70 or more strands.
Note: The values of current rating mentioned in above Table are based on
wind velocity of 0.6 metre/second, solar heat radiation of 1200
watt/metre2, ambient temperature of 50° C & conductor temperature
of 80°C.
ACSR Conductor CONSTRUCTION
ACSR conductors are formed by several wires of aluminium and
galvanized steel, stranded in concentric layers. The wire or wires
which form the core, are made of galvanized steel and the external
layer or layers, are of aluminium. Galvanized steel core consist
normally of 1, 7 or 19 wires. The diameters of steel and aluminium
wires can be the same, or different.
By varying the relative proportions of aluminium and steel, the
required characteristics for any particular application can be
reached. A higher U. T. S. Can be obtained, by increasing steel
content, and a higher current carrying capacity by increasing
aluminium content.
ACSR Conductor ELECTRICAL PROPERTIES
| density@20ºC | Aluminium: 2.703 kg/dm |
| Galvanised Steel: 7.80 kg/dm |
| Temperature Coefficient@20°C | Aluminium: 0.00403 (°C) |
| resistivity@20°C | Aluminium: Should not exceed 0.028264 |
linear Expansivity
| Aluminium: 23 x10 (°C) |
| Galvanised Steel: 11.5 x10 (1/°C) |
SERVICE CONDITIONS
| Ambient Temperature | -5°C - 50°C |
| Wind Pressure | 80 – 130kg/m |
| Seismic Acceleration | 0.12 - 0.05g |
| Isokeraunic level | 10 – 18 |
| relative Humidity | 5 – 100% |
ACSR Conductor TECHNICAL DATA
| Numbers of Wires | Modules of Elasticity | Coeficient of linear Expansion |
| AL | STEEL | Kg/mm2 | Lb/in2 | 1/Cº | 1/Fº |
| 6 | 1 | 81 | 11.5 x106 | 19.1 x10-6 | 10.6 x10-6 |
| 6 | 7 | 77 | 11.0 x106 | 19.8 x10-6 | 11.0 x10-6 |
| 12 | 7 | 107 | 15.2 x106 | 15.3 x10-6 | 8.5 x10-6 |
| 18 | 1 | 67 | 9.5 x106 | 21.2 x10-6 | 11.8 x10-6 |
| 24 | 7 | 74 | 10.5 x106 | 19.6 x10-6 | 10.9 x10-6 |
| 26 | 7 | 77 | 10.9 x106 | 18.9 x10-6 | 10.5 x10-6 |
| 28 | 7 | 79 | 11.2 x106 | 18.4 x10-6 | 10.2 x10-6 |
| 30 | 7 | 82 | 11.6 x106 | 17.8 x10-6 | 9.9 x10-6 |
| 30 | 19 | 80 | 11.4 x106 | 18.0 x10-6 | 10.0 x10-6 |
| 32 | 19 | 82 | 11.7 x106 | 17.5 x10-6 | 9.7 x10-6 |
| 54 | 7 | 70 | 9.9 x106 | 19.3 x10-6 | 10.7 x10-6 |
| 54 | 19 | 68 | 9.7 x106 | 19.4 x10-6 | 10.8 x10-6 |
bare ACSR conductor Skunk (AL-12/2.59mm, St-7/2.59mm) EN50182
technical data sheet
| BRITISH STANDARD EN 50182: 2001 |
| Code | Old Code | Area | No. of Wires | Wire Diameter | Diameter | Mass per Unit | Rated Strength | DC Resistance |
| | AL | Steel | Total | AL | Steel | AL | Steel | Core | Cond. | Length | | |
| | mm2 | 2 mm | 2 mm | | | mm | mm | mm | mm | kg/km | kN | Q/km |
| 11-AL1/2-ST1A | MOLE | 10.6 | 1.77 | 12.4 | 6 | 1 | 1.5 | 1.5 | 1.5 | 4.5 | 42.8 | 4.14 | 2.7027 |
| 21-AL1/3-ST1A | SQUIRREL | 21 | 3.5 | 24.5 | 6 | 1 | 2.11 | 2.11 | 2.11 | 6.33 | 84.7 | 7.87 | 1.3659 |
| 26-AL1/4-ST1A | GOPHER | 26.2 | 4.37 | 30.6 | 6 | 1 | 2.36 | 2.36 | 2.36 | 7.08 | 106 | 9.58 | 1.0919 |
| 32-AL1 巧-ST1A | WEASEL | 31.6 | 5.27 | 36.9 | 6 | 1 | 2.59 | 2.59 | 2.59 | 7.77 | 127.6 | 11.38 | 0.9065 |
| 37-AL1/6-ST1A | FOX | 36.7 | 6.11 | 42.8 | 6 | 1 | 2.79 | 2.79 | 2.79 | 8.37 | 148.1 | 13.21 | 0.7812 |
| 42-AL1/7-ST1A | FERRET | 42.4 | 7.07 | 49.5 | 6 | 1 | 3 | 3 | 3 | 9 | 171.2 | 15.27 | 0.6757 |
| 53-AL1/9-ST1A | RABBIT | 52.9 | 8.81 | 61.7 | 6 | 1 | 3.35 | 3.35 | 3.35 | 10.1 | 213.5 | 18.42 | 0.5419 |
| 63-AL1/11-ST1A | MINK | 63.1 | 10.5 | 73.6 | 6 | 1 | 3.66 | 3.66 | 3.66 | 11 | 254.9 | 21.67 | 0.454 |
| 63-AL1/37-ST1A | SKUNK | 63.2 | 36.9 | 100.1 | 12 | 7 | 2.59 | 2.59 | 7.77 | 13 | 463 | 52.79 | 0.4568 |
| 75-AL1/13-ST1A | BEAVER | 75 | 12.5 | 87.5 | 6 | 1 | 3.99 | 3.99 | 3.99 | 12 | 302.9 | 25.76 | 0.382 |
| 73-AL1/43-ST1A | HORSE | 73.4 | 42.8 | 116.2 | 12 | 7 | 2.79 | 2.79 | 8.37 | 14 | 537.3 | 61.26 | 0.3936 |
| 79-AL1/13-ST1A | RACOON | 78.8 | 13.1 | 92 | 6 | 1 | 4.09 | 4.09 | 4.09 | 12.3 | 318.3 | 27.06 | 0.3635 |
| 84-AL1/14-ST1A | OTTER | 83.9 | 14 | 97.9 | 6 | 1 | 4.22 | 4.22 | 4.22 | 12.7 | 338.8 | 28.81 | 0.3415 |
| 95-AL1/16-ST1A | CAT | 95.4 | 15.9 | 111.3 | 6 | 1 | 4.5 | 4.5 | 4.5 | 13.5 | 385.3 | 32.76 | 0.3003 |
| 105-AL1/17-ST1A | HARE | 105 | 17.5 | 122.5 | 6 | 1 | 4.72 | 4.72 | 4.72 | 14.2 | 423.8 | 36.04 | 0.273 |
| 105-AL1/14-ST1A | DOG | 105 | 13.6 | 118.5 | 6 | 7 | 1.57 | 1.57 | 4.71 | 14.2 | 394 | 32.65 | 0.2733 |
| 132-AL1/20-ST1A | COYOTE | 131.7 | 20.1 | 151.8 | 26 | 7 | 1.91 | 1.91 | 5.73 | 15.9 | 520.7 | 45.86 | 0.2192 |
| 132-AL1/7-ST1A | COUGAR | 131.5 | 7.31 | 138.8 | 18 | 1 | 3.05 | 3.05 | 3.05 | 15.3 | 418.8 | 29.74 | 0.2188 |
| 131-AL1/31-ST1A | TIGER | 131.2 | 30.6 | 161.9 | 30 | 7 | 2.36 | 2.36 | 7.08 | 16.5 | 602.2 | 57.87 | 0.2202 |
| 158-AL1/37-ST1A | WOLF | 158.1 | 36.9 | 194.9 | 30 | 7 | 2.59 | 2.59 | 7.77 | 18.1 | 725.3 | 68.91 | 0.1829 |
| 159-AL1/9-ST1A | DINGO | 158.7 | 8.81 | 167.5 | 18 | 1 | 3.35 | 3.35 | 3.35 | 16.8 | 505.2 | 35.87 | 0.1814 |
| 183-AL1/43-ST1A | LYNX | 183.4 | 42.8 | 226.2 | 30 | 7 | 2.79 | 2.79 | 8.37 | 19.5 | 841.6 | 79.97 | 0.1576 |
| 184-AL1/10-ST1A | CARACAL | 184.2 | 10.2 | 194.5 | 18 | 1 | 3.61 | 3.61 | 3.61 | 18.1 | 586.7 | 40.74 | 0.1562 |
| 212-AL1/49-ST1A | PANTHER | 212.1 | 49.5 | 261.5 | 30 | 7 | 3 | 3 | 9 | 21 | 973.1 | 92.46 | 0.1363 |
| 211-AL1/12-ST1A | JAGUAR | 210.6 | 11.7 | 222.3 | 18 | 1 | 3.86 | 3.86 | 3.86 | 19.3 | 670.8 | 46.57 | 0.1366 |
| 238-AL1/56-ST1A | LION | 238.3 | 55.6 | 293.9 | 30 | 7 | 3.18 | 3.18 | 9.54 | 22.3 | 1093.4 | 100.47 | 0.1213 |
| 264-AL1/62-ST1A | BEAR | 264.4 | 61.7 | 326.1 | 30 | 7 | 3.35 | 3.35 | 10.1 | 23.5 | 1213.4 | 111.5 | 0.1093 |
| 324-AL1/76-STA | GOAT | 324.3 | 75.7 | 400 | 30 | 7 | 3.71 | 3.71 | 11.1 | 26 | 1488.2 | 135.13 | 0.0891 |
| 375-AL1/88-ST1A | SHEEP | 375.1 | 87.5 | 462.6 | 30 | 7 | 3.99 | 3.99 | 12 | 27.9 | 1721.3 | 156.3 | 0.0771 |
| 374-AL1/48-ST1A | ANTELOPE | 374.1 | 48.5 | 422.6 | 54 | 7 | 2.97 | 2.97 | 8.91 | 26.7 | 1413.8 | 118.88 | 0.0773 |
| 382-AL1/49-ST1A | BISON | 381.7 | 49.5 | 431.2 | 54 | 7 | 3 | 3 | 9 | 27 | 1442.5 | 121.3 | 0.0758 |
CONSTRUCTION PARAMETERS
• IEC 60189
| Code | Nominal Area | Stranding | Overall Diameter | Weight | Breaking Load | Electrical Resistance @20° | Current Rating* |
| AL | STEEL | TOTAL | AL | STEEL | | | | | |
| mm2 | mm2 | mm2 | No.xmm | No.xmm | mm | Kg/Km | KN | Ω/Km | A |
| 16 | 16 | 2.67 | 18.7 | 6/1.84 | 1/1.84 | 5.52 | 64.6 | 6.08 | 1.7934 | 85 |
| 25 | 25 | 4.17 | 29.2 | 6/2.30 | 1/2.30 | 6.9 | 100.9 | 9.13 | 1.1478 | 112 |
| 40 | 40 | 6.67 | 46.7 | 6/2.91 | 1/2.91 | 8.73 | 161.5 | 14.4 | 0.7174 | 150 |
| 63 | 63 | 10.5 | 73.5 | 6/3.66 | 1/3.66 | 10.98 | 254.4 | 21.63 | 0.4555 | 198 |
| 100 | 100 | 16.7 | 117 | 6/4.61 | 1/4.61 | 13.83 | 403.8 | 34.33 | 0.2869 | 263 |
| 125 | 125 | 6.94 | 132 | 18/2.97 | 1/2.97 | 14.85 | 397.9 | 29.17 | 0.2304 | 299 |
| 125 | 125 | 20.4 | 145 | 26/2.47 | 7/1.92 | 15.64 | 503.9 | 45.69 | 0.231 | 302 |
| 160 | 160 | 8.89 | 169 | 18/3.36 | 1/3.36 | 16.8 | 509.3 | 36.18 | 0.18 | 347 |
| 160 | 160 | 26.1 | 186 | 26/2.80 | 7/2.18 | 17.74 | 644.9 | 57.69 | 0.1805 | 351 |
| 200 | 200 | 11.1 | 211 | 18/3.76 | 1/3.76 | 18.8 | 636.7 | 44.22 | 0.144 | 398 |
| 200 | 200 | 32.6 | 233 | 26/3.13 | 7/2.43 | 19.81 | 806.2 | 70.13 | 0.1444 | 402 |
| 250 | 250 | 24.6 | 275 | 22/3.80 | 7/2.11 | 21.53 | 880.6 | 68.72 | 0.1154 | 458 |
| 250 | 250 | 40.7 | 291 | 26/3.50 | 7/2.72 | 22.16 | 1007.7 | 87.67 | 0.1155 | 461 |
| 315 | 315 | 21.8 | 337 | 45/2.99 | 7/1.99 | 23.91 | 1039.6 | 79.03 | 0.0917 | 526 |
| 315 | 315 | 51.3 | 366 | 26/3.93 | 7/3.05 | 24.87 | 1269.7 | 106.83 | 0.0917 | 530 |
| 400 | 400 | 27.7 | 428 | 45/3.36 | 7/2.24 | 26.88 | 1320.1 | 98.36 | 0.0722 | 607 |
| 400 | 400 | 51.9 | 452 | 54/3.07 | 7/3.07 | 27.63 | 1510.3 | 123.04 | 0.0723 | 610 |
| 450 | 450 | 31.1 | 481 | 45/3.57 | 7/2.38 | 28.56 | 1485.2 | 107.47 | 0.0642 | 651 |
| 450 | 450 | 58.3 | 508 | 54/3.26 | 7/3.26 | 29.34 | 1699.1 | 138.42 | 0.0643 | 655 |
| 500 | 500 | 34.6 | 535 | 45/3.76 | 7/2.51 | 30.09 | 1650.2 | 119.41 | 0.0578 | 693 |
| 500 | 500 | 64.8 | 565 | 54/3.43 | 7/3.43 | 30.87 | 1887.9 | 153.8 | 0.0578 | 697 |
| 560 | 560 | 38.7 | 599 | 45/3.98 | 7/2.65 | 31.83 | 1848.2 | 133.74 | 0.0516 | 741 |
| 560* | 560 | 70.9 | 631 | 54/3.63 | 19/2.18 | 32.68 | 2103.4 | 172.59 | 0.0516 | 745 |
| 630 | 630 | 43.6 | 674 | 45/4.22 | 7/2.81 | 33.75 | 2079.2 | 150.45 | 0.0459 | 794 |
| 630* | 630 | 79.8 | 710 | 54/3.85 | 19/2.31 | 34.65 | 2366.3 | 191.77 | 0.0459 | 798 |
| 710 | 710 | 49.1 | 759 | 45/4.48 | 7/2.99 | 35.85 | 2343.2 | 169.56 | 0.0407 | 851 |
| 710* | 710 | 89.9 | 800 | 54/4.09 | 19/2.45 | 36.79 | 2666.8 | 216.12 | 0.0407 | 856 |
| 800* | 800 | 34.6 | 835 | 72/3.76 | 7/2.51 | 37.61 | 2480.2 | 167.41 | 0.0361 | 910 |
| 800* | 800 | 66.7 | 867 | 84/3.48 | 7/3.48 | 38.28 | 2732.7 | 205.33 | 0.0362 | 912 |
| 800* | 800 | 101 | 901 | 54/4.34 | 19/2.61 | 39.09 | 3004.9 | 243.52 | 0.0362 | 916 |
| 900* | 900 | 38.9 | 939 | 72/3.99 | 7/2.66 | 39.9 | 2790.2 | 188.33 | 0.0321 | 972 |
| 900* | 900 | 75 | 975 | 84/3.69 | 7/3.69 | 40.59 | 3074.2 | 226.5 | 0.0322 | 974 |
| 1000* | 1000 | 43.2 | 1043 | 72/4.21 | 7/2.80 | 42.08 | 3100.3 | 209.26 | 0.0289 | 1031 |
| 1120* | 1120 | 47.3 | 1167 | 72/4.45 | 19/1.78 | 44.5 | 3464.9 | 234.53 | 0.0258 | 1096 |
| 1120* | 1120 | 91.2 | 1211 | 84/4.12 | 19/2.47 | 45.31 | 3811.5 | 283.17 | 0.0258 | 1100 |
| 1250* | 1250 | 102 | 1352 | 84/4.35 | 19/2.61 | 47.85 | 4253.9 | 316.04 | 0.0232 | 1165 |
| 1250* | 1250 | 52.8 | 1303 | 72/4.70 | 19/1.88 | 47 | 3867.1 | 261.75 | 0.0231 | 1163 |
| 1120* | 1120 | 91.2 | 1211 | 84/4.12 | 19/2.47 | 45.31 | 3811.5 | 283.17 | 0.0258 | 1100 |
bare ACSR conductor Skunk (AL-12/2.59mm, St-7/2.59mm) EN50182
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