Using Modern Conductors to Build a Modern Grid
- Jun 22, 2020 6:21 pm GMT
This item is part of the Special Issue - 2020-06 - Grid Modernization, click here for more
In the late 1800’s and early 1900’s, bare overhead conductors were generally made up of copper wires. Copper offered excellent conductivity, decent strength and reasonable cost. With the advent of World War I, copper supplies were depleted making bullets, so aluminum wires were used as an alternative. Aluminum offered decent conductivity and was much lighter than copper, but was relatively weak, so manufacturers quickly developed the steel-reinforced conductor known as ACSR. While a number of all-aluminum and steel-reinforced variants were introduced from time to time, the one-hundred year old ACSR conductor is still the most widely used conductor today.
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