Aluminum-cored steel-supported ACSS cables for overhead transmission lines.

ACSS Cable is a concentric stranded composite conductor consisting of a galvanized steel-stranded core and one or more layers of annealed or softened 1350-0 aluminum. The steel core is Class A galvanized zinc-coated steel that carries most or all of the mechanical loads of the conductor due to the annealed or softened aluminum. The steel core has high strength as required.

ZMS produces ACSS cables that can be operated continuously at temperatures up to 250°C without loss of strength, which also results in a significant increase in the ACSR’s current-carrying capacity. The ACSS is self-damping, with a lesser plunge under emergency electrical loads than the ACSR, and its final plunge is unaffected by the long-term creep of the aluminum.
These advantages allow ACSS cables to be used in new line applications. In applications where structures can be optimized due to reduced conductor sag or where high emergency loads may be required; or in lines where wind vibration is a problem. ACSS can be used to conduct an existing line to allow increased current using existing gaps and tensions.

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Types of VERI ACSS Cable

ACSS—Aluminum Conductor Steel Supported

ACSS is a concentric stranded composite conductor made of a galvanized steel strand core and one or more layers of annealed or soft 1350-0 aluminum.

The steel core is Class A galvanized steel that can withstand most or all of the mechanical load of the conductor due to the use of annealed or soft-tempered aluminum. High-strength steel core available on request.



Aluminum Conductor Steel Supported cables are used for overhead transmission lines. And ACSS is designed to operate continuously up to 250ᵒC, even higher temperatures. But they can not destroy the strength of the cable. So it can improve the current carrying capacity of ACSS cable. The ACSS is self-damping, with less sag under emergency electrical loads than the ACSR. And its ultimate sag is not affected by the long-term creep of PF aluminum. These advantages make the ACSS very useful in new-line applications.

ACSS/TW—Aluminum Conductor Steel Supported

Steel Support (ACSS/TW) is a concentrically stranded conductor with one or more layers of trapezoidal hard-drawn and annealed 1350-0 aluminum wire on a central core of steel.

Designed for continuous operation at high temperatures, ACSS/TW has less sag under emergency electrical loads than ACSR/TW. It has excellent self-damping properties, and its ultimate sag is unaffected by long-term creep in aluminum.



ACSS/TW can be designed to have the same aluminum cross-sectional area as standard ACSS, resulting in smaller conductor diameters but reducing wind load parameters. Or diameters equal to that of standard ACSS, resulting in significantly more high aluminum area, lower conductor resistance, and higher current rating.

ACSS Cable Standard Parameters

The number of cores in ACSS cables determines the change in cable structure

ASTM B-609

Aluminum 1350 round wire, annealed and intermediate tempered, for electrical applications.

ASTM B-498

Galvanized (Galvanized) Steel Core Wire

ASTM B-856

Concentrically laid stranded aluminum conductors with coated steel supports (ACSS)

Insulation material

None insulation


Overhead transmission

Conductor Material

Aluminum conductor steel supported



Voltage level

High voltage (35kV, 220kV)


Single core, multi  core



ZMS Service Packing And Shipment

For conductors suitable for overhead transmission (AAC AAAC ACSR ACAR ACSR/AW)/ABC/Concentric cables (Aluminum or Copper), ZMS usually uses standard wooden drum packaging, but we can also design different types of packaging according to customer requirements.

  • Cable Product Customization
    Contact us and send us your requirements. We can help you choose the right cable. You can provide us with the following information: cable voltage, and conductor material, insulation and sheath material, shield type, armor type, etc. or you can provide us with cable installation environment, application requirements, etc. We will serve you wholeheartedly. ZMS Cable Supplier has several quality certifications: ISO9000.1S09001.IS014000.IS014001.IS018000.CE.IEC, BS, NFC, ASTM, DIN, etc.
  • Fast Delivery
    ZMS has decades of experience in cable manufacturing and transportation, we have a professional transportation team.
  • All Types of Testing
    We guarantee that our products have been tested by specialized technical equipment to ensure high quality.

Veri Cable specializes in overhead cable, control cable, submarine cable, and cable accessories. HTLS conductors are a new type of overhead cable. And HTLS conductors include ACSS wire, ACCC cable, GAP type conductor, etc. As a professional cable manufacturer, we provide high-quality HTLS conductors. And we are a worldwide supplier of cable products. So our HTLS cables have passed the IEC, ASTM, and other international certifications.

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