Power companies have certainly been using aluminum wiring for decades for electrical transmission and power grids.

And transmission lines and other distribution applications were also used for underground applications.

However, you're probably asking the question when was it used in houses?

Well, the equivalent time as plenty of other properties in Canada and the United States, and very likely the world - throughout the years 1965 to about 1975.

And the explanation why aluminum wiring was made use of throughout that time period is just because the Vietnam War was driving the prices up of copper as a result of its consumption of it that home-builders had to search for another alternative metal in order to put branch circuitry into the residential properties that they were constructing to make it more inexpensive.

Home-builders back then touched base with the main aluminum companies who were already fabricating circuit wiring for major underground c