The innovative design capitalizes on the lightweight nature of the composite core, enabling the integration of more aluminium (configured in the trapezoidal cross-sectional shape) within the conductors. Remarkably, this augmentation in aluminium content does not surpass the weight of comparable ACSR and ACSS conductors with the same diameter. The trapezoidal annealed aluminium wires, coupled with their enhanced electrical conductivity, contribute to the ACCC conductors’ superior performance and capacity.
The amplified electrical conductivity of ACCC conductors, stemming from the annealed and trapezoidal-shaped aluminium wires, translates to a substantially increased electrical current transmission capability. For instance, the electrical current transmission capacity of an ACCC conductor can be up to twice that of an equivalent ACSR conductor.
Moreover, the ACCC conductor’s low coefficient of thermal expansion yields a diminished reliance on temperature-induced variations in length. This attribute culminates in reduced sag, contributing to the conductor’s resilience under changing conditions. Notably, ACCC conductors are classified as High-Temperature-Low-Sag (HTLS) conductors, embodying their exceptional suitability for demanding operational environments.
ACCC conductors offer the following benefits:
► Impressive strength-to-weight ratio
► Enhanced electrical current transmission capacity
► Reduced sag and potential for longer spans to minimize the number of towers
► Diminished conductor diameter, minimizing impact of ice, snow, and aerodynamic forces
► Well-suited for polluted and coastal environments
| ACCC(ASTM B857) |
| ConductorType | Nominal Equivalent | Aluminium Area
(mm) | EquivalentCopper | Strands/Wire
Diameter
(mm) | OveralDiameter | Total Area
(mm²) | Weight
(kg/km) | RatedStrength | Coefficient of Linear
Expansion | Modulus of Elasticity
(kg/mm?) |  DCResistance | Max.Allowable
Continuous
Operating at
175℃ | Max.Allowable
Continuous
Operating at
120℃ |
| Co |
| Core | Total |
| Core | Total | Above Thermal | Knee Point
(1/℃) | Below Thermal | (。/T) | AboveLinear
KneePoint | Below Linear | Knee Point | rr
Cu | (Amp) | Resistance | (Amp( | Resistance |
|
|
|
|
|
| Helsinki | 159.38 | 102.80 | "8/3.09
12/3.17" | 1/5.97 | 15.65 | 154.51 | 27.99 | 182.50 | 427.00 | 54.00 | 481.00 | 69.09 | 1.61 | 17.90 | 12093.83 | 7729.45 | 0.1839 | 762 | 0.0299 | 644 | 0.2582 |
| Bern | 165.27 | 106.60 | "7/3.28
12/3.28" | 1/4.82 | 15.50 | 160.22 | 18.25 | 178.47 | 443.00 | 34.00 | 477.00 | 50.81 | 1.61 | 19.50 | 12093.83 | 7464.32 | 0.1773 | 773 | 0.2883 | 654 | 0.2490 |
| Copenha-gen | 227.61 | 146.80 | "8/3.62
12/3.83" | 1/5.97 | 18.29 | 220.66 | 27.99 | 248.65 | 610.00 | 54.00 | 664.00 | 72.81 | 1.61 | 19.10 | 12093.83 | 7515.31 | 0.1287 | 956 | 0.2094 | 806 | 0.1809 |
| Glasgow | 244.97 | 158.00 | "8/3.85
12/3.91" | 1/7.75 | 19.53 | 237.25 | 47.17 | 284.42 | 656.00 | 87.00 | 743.00 | 115.15 | 1.61 | 17.50 | 12093.83 | 7790.63 | 0.1199 | 1012 | 0.1950 | 852 | 0.1684 |
Casa-
blanca | 278.82 | 179.80 | "8/4.03
12/4.22" | 1/7.11 | 20.50 | 270.03 | 39.7 | 309.73 | 747.00 | 76.00 | 823.00 | 100.99 | 1.61 | 18.60 | 12093.83 | 7596.88 | 0.1053 | 1096 | 0.1714 | 922 | 0.1481 |
| Lisbon | 319.32 | 206.00 | "6/4.95
10/4.97" | 1/7.11 | 21.78 | 309.56 | 39.7 | 349.26 | 855.00 | 76.00 | 931.00 | 103.21 | 1.61 | 19.10 | 12093.83 | 7525.50 | 0.0918 | 1197 | 0.1494 | 1006 | 0.1292 |
| Oslo | 320.54 | 206.70 | "8/4.39
12/4.48" | 1/8.76 | 22.40 | 310.44 | 60.27 | 370.71 | 859.00 | 113.00 | 972.00 | 147.56 | 1.61 | 17.60 | 12093.83 | 7770.24 | 0.0916 | 1210 | 0.1491 | 1016 | 0.1288 |
| Amester-dam | 376.61 | 242.90 | "7/4.98
11/5.14" | 1/7.75 | 23.55 | 365.11 | 47.17 | 412.28 | 1009.00 | 87.00 | 1096.00 | 122.34 | 1.61 | 19.10 | 12093.83 | 7525.50 | 0.0778 | 1333 | 0.1268 | 1119 | 0.1096 |
| Brussels | 430.97 | 278.00 | "7/5.32
12/5.28" | 1/8.13 | 25.14 | 417.81 | 51.91 | 469.72 | 1154.00 | 98.00 | 1252.00 | 135.6 | 1.61 | 19.20 | 12093.83 | 7505.11 | 0.068 | 1457 | 0.1109 | 1220 | 0.0959 |
Stock-
holm | 472.32 | 304.60 | "8/5.22
14/5.1" | 1/8.76 | 26.40 | 457.89 | 60.27 | 518.16 | 1265.00 | 113.00 | 1378.00 | 155.86 | 1.61 | 19.00 | 12093.83 | 7535.70 | 0.062 | 1549 | 0.1013 | 1296 | 0.0876 |
| Warsaw | 529.05 | 341.20 | "8/4.21
11/4.44
14/4.57" | 1/8.76 | 27.72 | 510.64 | 60.27 | 570.91 | 1417.00 | 113.00 | 1530.00 | 158.83 | 1.61 | 19.40 | 12093.83 | 7474.52 | 0.0559 | 1658 | 0.0914 | 1386 | 0.0791 |
| Dublin | 534.3 | 344.60 | "8/5.57
14/5.42" | 1/9.53 | 28.15 | 517.97 | 71.33 | 589.3 | 1431.00 | 132.00 | 1563.00 | 182.94 | 1.61 | 18.90 | 12093.83 | 7556.10 | 0.0548 | 1682 | 0.0897 | 1405 | 0.0776 |
| Hamburg | 561.79 | 362.40 | "8/4.31
12/4.38
14/4.72" | 1/8.76 | 28.62 | 542.24 | 60.27 | 602.51 | 1505.00 | 113.00 | 1618.00 | 160.6 | 1.61 | 19.50 | 12093.83 | 7454.12 | 0.0526 | 1726 | 0.0861 | 1441 | 0.0745 |
| Milan | 582.76 | 375.90 | "8/4.38
12/4.46
16/4.5" | 1/8.76 | 29.10 | 562.48 | 60.27 | 622.75 | 1561.00 | 113.00 | 1674.00 | 161.74 | 1.61 | 19.60 | 12093.83 | 7433.73 | 0.0507 | 1767 | 0.0831 | 1475 | 0.0719 |
| Rome | 605.11 | 390.30 | “9/4.25
12/4.54
16/4.56" | 1/9.53 | 29.84 | 584.05 | 71.33 | 655.38 | 1621.00 | 132.00 | 1753.00 | 186.66 | 1.61 | 19.20 | 12093.83 | 7494.91 | 0.0489 | 1816 | 0.0800 | 1514 | 0.0693 |
| Vienna | 641.75 | 413.90 | "8/4.56
12/4.68
16/4.74" | 1/8.76 | 30.41 | 619.42 | 60.27 | 679.69 | 1719.00 | 113.00 | 1832.00 | 164.95 | 1.61 | 19.90 | 12093.83 | 7392.94 | 0.0461 | 1880 | 0.0756 | 1567 | 0.0655 |
| Budapest | 682.16 | 440.00 | "8/4.74
12/4.83
16/4.87" | 1/9.53 | 31.50 | 658.42 | 71.33 | 729.75 | 1827.00 | 132.00 | 1959.00 | 190.8 | 1.61 | 19.60 | 12093.83 | 7433.73 | 0.0433 | 1960 | 0.0712 | 1633 | 0.0617 |
| Prague | 705.75 | 455.20 | "8/4.74
12/4.91
16/4.99" | 1/8.76 | 31.77 | 681.19 | 60.27 | 741.46 | 1891.00 | 113.00 | 2004.00 | 168.4 | 1.61 | 20.10 | 12093.83 | 7352.15 | 0.0419 | 1998 | 0.0689 | 1664 | 0.0597 |
| Munich | 747.91 | 482.40 | "8/4.92
12/5.05
16/5.12" | 1/9.53 | 32.85 | 721.88 | 71.33 | 793.21 | 2003.00 | 132.00 | 2135.00 | 194.4 | 1.61 | 19.90 | 12093.83 | 7403.14 | 0.0395 | 2079 | 0.0651 | 1729 | 0.0565 |
| London | 771.83 | 497.80 | "8/5.01
12/5.13
16/5.19" | 1/9.78 | 33.40 | 744.96 | 75.12 | 820.08 | 2068.00 | 142.00 | 2210.00 | 204.0 | 1.61 | 19.80 | 12093.83 | 7403.14 | 0.0383 | 2123 | 0.0631 | 1765 | 0.0548 |
| Paris | 825.51 | 532.50 | "8/5.06
12/5.31
18/5.12" | 1/8.76 | 34.17 | 796.78 | 60.27 | 857.05 | 2211.00 | 113.00 | 2324.00 | 174.9 | 1.61 | 20.50 | 12093.83 | 7301.17 | 0.0358 | 2209 | 0.0592 | 1835 | 0.0514 |
| Antwerp | 960.82 | 619.73 | "9/4.29
12/4.57
16/4.58
20/4.59" | 1/9.78 | 36.85 | 921.99 | 75.12 | 997.11 | 2574.00 | 142.00 | 2716.00 | 214.0 | 1.61 | 20.30 | 12093.83 | 7321.56 | 0.0311 | 2425 | 0.0517 | 2009 | 0.0450 |
| Madrid | 1037.94 | 669.47 | "8/4.69
12/4.74
16/4.77
20/4.78" | 1/9.78 | 38.20 | 995.99 | 75.12 | 1071.11 | 2780.00 | 142.00 | 2922.00 | 218.1 | 1.61 | 20.50 | 12093.83 | 7290.97 | 0.0288 | 2546 | 0.0481 | 2106 | 0.0419 |
| ACCC(ASTM B857) |
| ConductorType | Nominal Equivalent | Aluminium Area
(mm²) | EquivaltCopper | Strands/Wire
Diameter
(mm) | (mm) | Total Area
(mm²) | Weight
(kg/km) | RatedStrength | Coefficient of Linear
Expansion | Modulus of Elasticity
(kg/mm²) | at20°℃ | Max.Allowable
Continuous
Operating at
175℃ | Max.Allowable
Continuous
Operating at
120℃ |
| Core |
| Core | Tot |
| Core | Tot | Above Thermal | Knee Point
(1/℃) | Below Thermal | Knee point*109 | Above Thermal | Knee Point | Below Thermal | Knee Point | (Amp( | Resistance | (Amp( | Resistance |
|
|
|
|
| 150 | 160 | 103.2 | "8/3.09
12/3.17" | 1/5.97 | 15.65 | 154.51 | 27.99 | 182.50 | 427.00 | 54.00 | 481.00 | 69.30 | 1.61 | 17.90 | 12093.83 | 7729.45 | 0.1839 | 783 | 0.0299 | 660 | 0.2582 |
| 160 | 170 | 109.7 | "7/3.28
12/3.28" | 1/4.82 | 15.50 | 160.22 | 18.25 | 178.47 | 443.00 | 34.00 | 477.00 | 51.03 | 1.61 | 19.50 | 12093.83 | 7464.32 | 0.1773 | 795 | 0.2883 | 670 | 0.2490 |
| 220 | 230 | 148.4 | "8/3.62
12/3.83” | 1/5.97 | 18.29 | 220.66 | 27.99 | 248.65 | 610.00 | 54.00 | 664.00 | 73.11 | 1.61 | 19.10 | 12093.83 | 7515.31 | 0.1287 | 984 | 0.2094 | 827 | 0.1809 |
| 235 | 250 | 161.3 | "8/3.85
12/3.91" | 1/7.75 | 19.53 | 237.25 | 47.17 | 284.42 | 656.00 | 87.00 | 743.00 | 115.47 | 1.61 | 17.50 | 12093.83 | 7790.63 | 0.1199 | 1043 | 0.1950 | 875 | 0.1684 |
| 285 | 280 | 180.6 | "8/4.03
12/4.22" | 1/7.11 | 20.50 | 270.03 | 39.70 | 309.73 | 747.00 | 76.00 | 823.00 | 101.35 | 1.61 | 18.60 | 12093.83 | 7596.88 | 0.1053 | 1130 | 0.1714 | 947 | 0.1481 |
| 310 | 320 | 206.4 | "6/4.95
10/4.97" | 1/7.11 | 21.78 | 309.56 | 39.70 | 349.26 | 855.00 | 76.00 | 931.00 | 103.63 | 1.61 | 19.10 | 12093.83 | 7525.50 | 0.0918 | 1235 | 0.1494 | 1034 | 0.1292 |
| 310 | 320 | 206.4 | "8/4.39
12/4.48" | 1/8.76 | 22.40 | 310.44 | 60.27 | 370.71 | 859.00 | 113.00 | 972.00 | 147.98 | 1.61 | 17.60 | 12093.83 | 7770.24 | 0.0916 | 1248 | 0.1491 | 1044 | 0.1288 |
| 360 | 380 | 245.1 | "7/4.98
11/5.14" | 1/7.75 | 23.55 | 365.11 | 47.17 | 412.28 | 1009.00 | 87.00 | 1096.00 | 122.83 | 1.61 | 19.10 | 12093.83 | 7525.50 | 0.0778 | 1376 | 0.1268 | 1150 | 0.1096 |
| 415 | 430 | 277.4 | "7/5.32
12/5.28" | 1/8.13 | 25.14 | 417.81 | 51.91 | 469.72 | 1154.00 | 98.00 | 1252.00 | 136.17 | 1.61 | 19.20 | 12093.83 | 7505.11 | 0.068 | 1505 | 0.1109 | 1256 | 0.0959 |
| 460 | 470 | 303.2 | "8/5.22
14/5.1" | 1/8.76 | 26.40 | 457.89 | 60.27 | 518.16 | 1265.00 | 113.00 | 1378.00 | 156.47 | 1.61 | 19.00 | 12093.83 | 7535.70 | 0.062 | 1601 | 0.1013 | 1335 | 0.0876 |
| 510 | 530 | 341.9 | "8/4.21
11/4.44
14/4.57" | 1/8.76 | 27.72 | 510.64 | 60.27 | 570.91 | 1417.00 | 113.00 | 1530.00 | 159.51 | 1.61 | 19.40 | 12093.83 | 7474.52 | 0.0559 | 1714 | 0.0914 | 1427 | 0.0791 |
| 520 | 540 | 348.3 | "8/5.57
14/5.42" | 1/9.53 | 28.15 | 517.97 | 71.33 | 589.30 | 1431.00 | 132.00 | 1563.00 | 183.64 | 1.61 | 18.90 | 12093.83 | 7556.10 | 0.0548 | 1740 | 0.0897 | 1448 | 0.0776 |
| 540 | 560 | 361.2 | "8/4.31
12/4.38
14/4.72" | 1/8.76 | 28.62 | 542.24 | 60.27 | 602.51 | 1505.00 | 113.00 | 1618.00 | 161.33 | 1.61 | 19.50 | 12093.83 | 7454.12 | 0.0526 | 1785 | 0.0861 | 1485 | 0.0745 |
| 560 | 580 | 374.1 | "8/4.38
12/4.46
16/4.5" | 1/8.76 | 29.10 | 562.48 | 60.27 | 622.75 | 1561.00 | 113.00 | 1674.00 | 162.50 | 1.61 | 19.60 | 12093.83 | 7433.73 | 0.0507 | 1828 | 0.0831 | 1520 | 0.0719 |
| 580 | 605.11 | 390.3 | "9/4.25
12/4.54
16/4.56" | 1/9.53 | 29.84 | 584.05 | 71.33 | 655.38 | 1621.00 | 132.00 | 1753.00 | 187.44 | 1.61 | 19.20 | 12093.83 | 7494.91 | 0.0489 | 1879 | 0.0800 | 1561 | 0.0693 |
| 620 | 640 | 412.8 | "8/4.56
12/4.68
16/4.74" | 1/8.76 | 30.41 | 619.42 | 60.27 | 679.69 | 1719.00 | 113.00 | 1832.00 | 165.78 | 1.61 | 19.90 | 12093.83 | 7392.94 | 0.0461 | 1946 | 0.0756 | 1616 | 0.0655 |
| 650 | 680 | 438.6 | "8/4.74
12/4.83
16/4.87" | 1/9.53 | 31.50 | 658.42 | 71.33 | 729.75 | 1827.00 | 132.00 | 1959.00 | 191.73 | 1.61 | 19.60 | 12093.83 | 7433.73 | 0.0433 | 2030 | 0.0712 | 1684 | 0.0617 |
| 680 | 710 | 458.0 | "8/4.74
12/4.91
16/4.99” | 1/8.76 | 31.77 | 681.19 | 60.27 | 741.46 | 1891.00 | 113.00 | 2004.00 | 169.34 | 1.61 | 20.10 | 12093.83 | 7352.15 | 0.0419 | 2069 | 0.0689 | 1716 | 0.0597 |
| 720 | 750 | 483.8 | "8/4.92
12/5.05
16/5.12" | 1/9.53 | 32.85 | 721.88 | 71.33 | 793.21 | 2003.00 | 132.00 | 2135.00 | 195.38 | 1.61 | 19.90 | 12093.83 | 7403.14 | 0.0395 | 2154 | 0.0651 | 1785 | 0.0565 |
| 740 | 770 | 496.7 | "8/5.01
12/5.13
16/5.19” | 1/9.78 | 33.40 | 744.96 | 75.12 | 820.08 | 2068.00 | 142.00 | 2210.00 | 205.01 | 1.61 | 19.80 | 12093.83 | 7403.14 | 0.0383 | 2200 | 0.0631 | 1822 | 0.0548 |
| 795 | 830 | 535.4 | "8/5.06
12/5.31
18/5.12" | 1/8.76 | 34.17 | 796.78 | 60.27 | 857.05 | 2211.00 | 113.00 | 2324.00 | 175.99 | 1.61 | 20.50 | 12093.83 | 7301.17 | 0.0358 | 2289 | 0.0592 | 1894 | 0.0514 |
| 920 | 960 | 619.2 | "9/4.29
12/4.57
16/4.58
20/4.59" | 1/9.78 | 36.85 | 921.99 | 75.12 | 997.11 | 2574.00 | 142.00 | 2716.00 | 215.21 | 1.61 | 20.30 | 12093.83 | 7321.56 | 0.0311 | 2515 | 0.0517 | 2076 | 0.0450 |
| 1000 | 1040 | 670.8 | "8/4.69
12/4.74
16/4.77
20/4.78" | 1/9.78 | 38.20 | 995.99 | 75.12 | 1071.11 | 2780.00 | 142.00 | 2922.00 | 218.74 | 1.61 | 20.50 | 12093.83 | 7290.97 | 0.0288 | 2642 | 0.0481 | 2177 | 0.0419 |
