Electricity Today T&D Magazine

Background:
For over 100 years Transmission Engineers have relied on aluminum conductors strengthened by steel core wires, commonly referred to as ACSR conductors. These conductors offered reasonable performance and durability and were capable of operating at temperatures up to 93° C. Above this temperature the conductive aluminum strands would begin to anneal and lose strength. In the 1970’s a new version of this conductor was introduced that used pre-annealed aluminum and, in some cases, improved...