ACSS/TW
Aluminum Conductor, Steel Supported. Trapezoidal Shaped Aluminum Strands. Bare.
Application
Southwire's ACSS/TW is designed for overhead distribution and transmission lines. It is designed to operate continuously at elevated temperatures up to 250°C without loss of strength, it sags less under emergency electrical loadings than ACSR/TW, excellent self-damping properties, and its final sags are not affected by long-term creep of aluminum. Southwire's ACSS/TW is available in equal area and equal diameter design. The equal area design allows equal ampacity in a smaller diameter conductor when compared with a standard ACSS conductor. The equal diameter design allows more ampacity in an equal diameter conductor when compared with a standard ACSS conductor. ACSS/TW also provides many design opportunities for new line construction: i.e., reduced tower cost, decreased sag, increased self-damping properties, increased operating temperature and improved corrosion resistance.
| Codeword | Size (AWG or kcmil) | No. of Strands | Nom. OD (mils) (mm) | Nominal Total Weight (lbs/1000') (kgs/km) | |||||
| 604153 | 336.4 KCMIL 336.4 KCMIL | 0 0 | 693 17.60 | 542 807 | |||||
| 621222 | 477 KCMIL 477 KCMIL | 0 0 | 790 20.07 | 656 976 | |||||
| 613726 | 556.5 KCMIL 556.5 KCMIL | 20 20 | 850 21.60 | 765 1138 | |||||
| 612923 | 636 KCMIL 636 KCMIL | 0 0 | 909 23.09 | 275 410 | |||||
| 613102 | 664.8 KCMIL 664.8 KCMIL | 20 20 | 930 23.62 | 935 1392 | |||||
| 613697 | 762.8 KCMIL 762.8 KCMIL | 20 20 | 990 25.15 | 1047 1557 | |||||
| 626623 | 768.2 KCMIL 768.2 KCMIL | 0 0 | 977 24.82 | 987 1469 | |||||
| 611515 | 795 KCMIL 795 KCMIL | 20 20 | 1010 25.65 | 1091 1624 | |||||
| 324053 | 954 KCMIL 954 KCMIL | 20 20 | 1080 27.43 | 1224 1822 | |||||
| 610027 | 959.6 KCMIL 959.6 KCMIL | 22 22 | 1110 28.20 | 1317 1959 | |||||
| 612537 | 1033.5 KCMIL 1033.5 KCMIL | 0 0 | 1130 28.70 | 356 530 | |||||
| 615055 | 1158.4 KCMIL 1158.4 KCMIL | 24 24 | 1196 30.38 | 1488 2214 | |||||
| 612765 | 1192.5 KCMIL 1192.5 KCMIL | 0 0 | 1225 31.12 | 1576 2346 | |||||
| 617079 | 1233.6 KCMIL 1233.6 KCMIL | 0 0 | 1245 31.62 | 1583 2357 | |||||
| 693770 | 1272 KCMIL 1272 KCMIL | 39 39 | 1260 32.00 | 1630 2426 | |||||
| 607137 | MERRIMACK MERRIMACK | 1433.6 KCMIL 1433.6 KCMIL | 39 39 | 1340 34.04 | 1840 2738 | ||||
| 616032 | 1590 KCMIL 1590 KCMIL | 0 0 | 1358 34.49 | 1790 2664 | |||||
| 610607 | 1622 KCMIL 1622 KCMIL | 39 39 | 1420 36.07 | 2107 3135 | |||||
| 612311 | 1926.9 KCMIL 1926.9 KCMIL | 42 42 | 1549 39.37 | 2471 3677 | |||||
| 614203 | 2627.3 KCMIL 2627.3 KCMIL | 64 64 | 1760 44.71 | 3062 4557 | |||||
| 610027 | null null null null | 0 0 | 1110 28.19 | 1316 1958 | |||||
Standards & References
Southwire's ACSS/TW conductor meets or exceeds the following ASTM specifications:
- B500 Metallic Coated Stranded Steel Core for Aluminum Conductors, Steel Reinforced.
- B609 Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes
- B802 Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced.
- B803 High-Strength Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum and Aluminum-Alloy Conductors, Steel Reinforced.
- B857 Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Supported (ACSS/TW).
Construction
ACSS is a composite concentric-lay-stranded conductor. Steel strands form the central core of the conductor with one or more layers of 63% minimum average conductivity aluminum 1350-0 wire stranded around it. The steel core carries most or all of the mechanical load of the conductor due to the "0" (fully annealed or soft) temper aluminum. Steel core wires are protected from corrosion by Galfan® , zinc-5% aluminum-mischmetal alloy coating. High strength steel core, aluminized, and aluminum clad steel core is also available.