ACSS/TW

Aluminum Conductor, Steel Supported. Trapezoidal Shaped Aluminum Strands. Bare.
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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.

Specifications

measurement
imperial metric
Select a set of products below for more information:
Conductor
No. of Conductors Size (AWG or kcmil) No. of Strands Nom. OD (mils) (mm) Nominal Total Weight (lbs/1000') (kgs/km) Allowable Ampacity
604153 1 1 336.4 KCMIL 336.4 KCMIL 0 0 693 17.60 542 807
621222 1 1 477 KCMIL 477 KCMIL 0 0 790 20.07 656 976
613726 1 1 556.5 KCMIL 556.5 KCMIL 20 20 850 21.60 765 1138
612923 1 1 636 KCMIL 636 KCMIL 0 0 909 23.09 275 410
613102 1 1 664.8 KCMIL 664.8 KCMIL 20 20 930 23.62 935 1392
613697 1 1 762.8 KCMIL 762.8 KCMIL 20 20 990 25.15 1047 1557
626623 1 1 768.2 KCMIL 768.2 KCMIL 0 0 977 24.82 987 1469
611515 1 1 795 KCMIL 795 KCMIL 20 20 1010 25.65 1091 1624
324053 1 1 954 KCMIL 954 KCMIL 20 20 1080 27.43 1224 1822
610027 1 1 959.6 KCMIL 959.6 KCMIL 22 22 1110 28.20 1317 1959
612537 1 1 1033.5 KCMIL 1033.5 KCMIL 0 0 1130 28.70 356 530
615055 1 1 1158.4 KCMIL 1158.4 KCMIL 0 0 1200 30.48 1489 2215
612765 1 1 1192.5 KCMIL 1192.5 KCMIL 0 0 1225 31.12 1576 2346
617079 1 1 1233.6 KCMIL 1233.6 KCMIL 0 0 1245 31.62 1583 2357
693770 1 1 1272 KCMIL 1272 KCMIL 39 39 1260 32.00 1630 2426
607137 1 1 1433.6 KCMIL 1433.6 KCMIL 39 39 1340 34.04 1840 2738
616032 1 1 1590 KCMIL 1590 KCMIL 0 0 1358 34.49 1790 2664
610607 1 1 1622 KCMIL 1622 KCMIL 39 39 1420 36.07 2107 3135
612311 1 1 1926.9 KCMIL 1926.9 KCMIL 42 42 1549 39.37 2471 3677
614203 1 1 2627.3 KCMIL 2627.3 KCMIL 64 64 1760 44.71 3062 4557
610027 1 1 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.