Product Information

Specification

ACSS Aluminum Conductor Steel Supported Bare Overhead Concentric Lay Stranded Conductors

Application:

ACSS conductors are useful for:
• Reconductoring lines: Increase ampacity with existing tensions and clearances.
• New lines: Optimize structures due to low sag. Also, provide higher emergency loading capability.
• Lines: Where aeolian vibration is an issue.

Also Known As:

ACSS conductor, Aluminum conductor steel supported, ACSS bare conductor, Overhead transmission conductor, Concentric lay stranded conductor, Steel supported aluminum conductor, High temperature ACSS conductor, ACSS power transmission wire.

Construction:

• ACSS, a non-homogenous conductor, is a concentric-laystranded conductor made from round aluminum 1350-O wires and round, coated steel core wire(s). Steel wires are coated with Class A coating of zinc – 5% aluminum mischmetal alloy. Other Classes of coatings are also available for additional protection from corrosion. Standard, High, Extra and Ultra High Strength steel are also available.
• ACSS conductors are manufactured in accordance with the ASTM specification B856.

Features:

• ACSS conductors are preferred over ACSR conductors for specific transmission line applications:With zinc – 5% aluminum mischmetal alloy coating on steel wires, ACSS conductors can be operated up to 250 °C.
• ACSS conductors carry more current than ACSR conductors due to: Minimum average conductivity of 63% IACS for 1350-O aluminum wires vs. an average conductivity of 61.2% for 1350-H19 aluminum wires in ACSR. ACSS conductors can be operated up to 250 °C vs. the maximum operating temperature for an ACSR conductor does not exceed 100 °C. ACSS conductors are prone to resist the effects of aeolian vibration due to very little or no mechanical load on the annealed aluminum wires. Long term creep is not a factor when designing with ACSS conductors.

*Data provided on this page is subject to change based on different manufacturers' variances

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