Skip to Content
Find More Like This
Return to Search

Aluminum-Alkaline Metal-Metal Composite Conductor

Ames Laboratory

Contact AMES About This Technology

Technology Marketing Summary

Iowa State University and Ames Laboratory researchers have developed a high strength, lightweight aluminum wire for high-voltage power transmission with reduced electrical resistance for overhead electrical lines.

Description

High-voltage electric power transmission cables based on pure aluminum strands with a stranded steel core (ACSR) or stranded aluminum alloy (ACAR) core have the disadvantages of mediocre tensile strength, high density, and poor strength and conductivity retention at elevated temperatures. This combination of properties causes excessive sag in overload situations and limits the mechanical tension the cables can bear in icing and high wind situations. Alternative materials that increase cable strength generally have poor conductivity and/or high cost. Iowa State University and Ames Laboratory researchers have discovered a method to produce an aluminum matrix wire composite with reduced density that adds strength while retaining maximum ampacity.

Benefits

* Simple (manufacturing methods are similar to those used now)
* Effective (high electrical conductivity and strength at both ambient and high temperatures)
* Economical (use of low cost materials)

Applications and Industries

High-voltage wires and cables for electrical transmission

More Information

Data and test samples that demonstrate expected properties will become available, contingent on successful completion of planned experiments.  Patent application(s) filed.

Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
3794DevelopmentAvailable09/09/201104/22/2013

Contact AMES About This Technology

To: Stacy Joiner<joiner@ameslab.gov>