The Electrical Properties of Single-Layer Aluminum Conductors, Steel Reinforced (ACSR), Having Single Steel Core Wires with Heavy Aluminum Coating

This paper discusses electrical tests made on representative sizes of single layer alminum conductors, steel reinforced with galvanized and heavy aluminum coatings. Analysis of 60-cycle a-c (alternating current) test data indicates that the conductors with aluminum-clad core wires than the same sizes of ACSR conductors in which the core wires are of galvanized steel. The differences are in the order of 4 to 10% less for resistance and 5 to 8% less for reactance. Because of this improvement in the electrical properties, single-layer ACSR conductors, having core wires with a heavy aluminum coating when used on transmission and distribution lines, will have less voltage drop and power losses, and the annual cost of line losses will be reduced.