9316 Electrical Conductors

Aluminum is used as a conductor because of its excellent electrical conductivity. Alloys 1350, [formerly known as EC (electrical conductor) grade] 5005, 6201, 8017, 8030, 8176, and 8177 are used in the form of wire, and alloys 1350 and 6101 are produced as bus bar (ASTM B317 Extruded Bar, Rod, Pipe, and Structural Shapes for Electrical Purposes (Bus Conductors) and ASTM B236 Bars for Electrical Purposes (Bus Bars)), made by extruding, rolling, or sawing from plate or sheet. The minimum conductivity of aluminum conductors is about 60% of the International Annealed Copper Standard (IACS).

In power transmission lines, the necessary strength for long spans is obtained by stranding aluminum wire around a high-strength galvanized or aluminized steel core. This product is called aluminum conductor, steel reinforced (ACSR). The resulting strength-to-weight ratio is about twice that of copper of equal conductivity.

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