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Aluminium conductor steel-reinforced cable (ACSR) is a type of high-capacity, high-strength stranded conductor typically used in overhead power lines. The outer strands are high-purity aluminium , chosen for its good conductivity, low weight, low cost, resistance to corrosion and decent mechanical stress resistance.
Steel-reinforced ACSR and composite-core ACCC conductors Its light weight and softness result in roughly 30% greater conductivity than an equivalent ACSR conductor, allowing 14% more current to be carried at equal temperature.
This table shows the biggest manufacturers of cable in terms of revenue. The revenues noted here are total revenue of the group as reported in financial statements. These may not represent the revenues from their cable business.
Reliance, Inc. (Reliance), headquartered in Scottsdale, Arizona, is the largest metals service center operator in North America.The company provides metals processing services and distributes a line of approximately 100,000 metal products, including aluminum, brass, alloy, copper, carbon steel, stainless steel, titanium, and specialty metal products to 125,000 customers such as fabricators and ...
The steel strands provide strength, and the aluminum strands provide electrical conductivity. For very large fiber counts, up to 144 fibers in one cable, multiple tubes are used. In other types, an aluminum rod has several spiral grooves around the outside, in which fibers in buffer tubes are laid. The fiber unit is covered with a plastic or ...
The most common conductor in use for transmission today is aluminum conductor steel reinforced (ACSR). Also seeing much use is all-aluminum-alloy conductor (AAAC). Aluminum is used because it has about half the weight of a comparable resistance copper cable (though larger diameter due to lower specific conductivity), as well as being cheaper. [1]