HS285® Ultra-High Strength ACSS Conductor

Download Category Specifications:
PDF Excel Table

Application

HS285 is the most popular high temperature low sag (HTLS) conductor in use today because of its versatility and strength. The multipurpose conductor is up to 21 percent stronger than standard ACSS, reducing sag while allowing for additional line capacity. Developed at Southwire’s D.B. Cofer Technology Center, HS285 has been proven in the field for capacity up to 95 percent higher than ACSR, lowering reconductoring costs. HS285 can be strung tighter to operate with more clearance at higher temperatures. It also allows for easy installation using existing rights of way, structures and methods.

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
604429 0 0 336.4 KCMIL 336.4 KCMIL 30 30 741 18.83 526 783
603950 0 0 397.5 KCMIL 397.5 KCMIL 26 26 783 19.89 546 813
660683 0 0 477 KCMIL 477 KCMIL 30 30 882 22.42 746 1111
600860 0 0 556.5 KCMIL 556.5 KCMIL 26 26 926 23.54 765 1139
625547 0 0 636 KCMIL 636 KCMIL 22 22 963 24.47 765 1138
616056 0 0 795 KCMIL 795 KCMIL 26 26 1107 28.13 1093 1627
607765 0 0 954 KCMIL 954 KCMIL 30 30 1248 31.70 1480 2203
619573 0 0 1033.5 KCMIL 1033.5 KCMIL 54 54 1244 31.62 1329 1978
661886 0 0 1272 KCMIL 1272 KCMIL 54 54 1381 35.09 1634 2431
619574 0 0 1351.5 KCMIL 1351.5 KCMIL 54 54 1423 36.16 1735 2582

Standards & References

Southwire’s ACSS conductor meets or exceeds the following ASTM specifications:

  • B500 Metallic Coated Stranded Steel Core for Use in Overhead Electrical Conductors.
  • 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 (ACSR).
  • B803 High-Strength Zinc-5% Aluminum Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors.
  • B856 Concentric-Lay-Stranded Aluminum Conductors, Coated Steel Supported (ACSS).
  • B958 Extra-High-Strength and Ultra-High-Strength Class A Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors.

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. Ultra high-strength steel core wires are protected from corrosion by Galfan® , zinc-5% aluminum-mischmetal alloy coating.

  • Aluminum Conductor Steel Supported (ACSS) (HS285)