Aluminum wire was utilized for wiring complete homes in North American residential construction for a brief period, from the 1960s until the mid-1970s, during a period of high copper pricing. It was initially adopted by some manufacturers as an alternative to steel because it was believed to be less likely to cause a fire.
Its advantages were that it was nonconductive and therefore would not melt at heat sources such as light bulbs and radiators, but it also had some disadvantages. Aluminum is a metal and will conduct electricity if you do not treat it properly. If you have any exposed aluminum wires inside your home then these should be protected from damage. The metal can become oxidized or covered with other substances which will increase its conductivity. Damage due to oxidation or contamination can happen over time so be sure to check all your wiring regularly.
The use of aluminum wire in residential construction was primarily limited to houses built before 1975. After this date, copper wire was generally used instead. However, some builders continued to use aluminum because it was cheaper than copper.
The use of aluminum wire in commercial buildings was much more widespread. These buildings were usually older and could not use copper wire because of previous damage or corrosion problems.
In conclusion, aluminum wiring was used in homes between the 1960s and 1975.
From the mid 1960s until the mid 1970s, aluminum wire was widely utilized in Canada. Aluminum wire was initially adopted because it was less costly than copper wiring. Some homes are entirely wired with aluminum or copper. It is not unusual for both types of wiring to be used in one house.
The use of aluminum wiring is now limited to older buildings and those in remote areas where there is no chance of contact with soil. In these cases, an electrician will replace the aluminum wiring with copper wiring over time as part of an overall maintenance program for the home. Otherwise, people will eventually start to notice problems with their electricity - especially if they have any appliances that use a lot of power - because aluminum wiring is very inefficient at carrying current.
The main concern with using aluminum wiring is that it is very dangerous if exposed to water. If you get liquid on your skin, you should never try to remove it by scraping your skin against a hard surface. This could easily lead to more serious injuries such as cuts or burns. Instead, gently wash the area with soap and hot water immediately so no time is lost during emergency repairs.
If you are working on an old house with aluminum wiring, take special care not to expose any parts of the wiring to moisture or other liquids.
Wire installation Prior to the 1960s, copper was the most often utilized material in domestic wiring. However, because to a huge scarcity, the cost of this metal is just too costly for the typical homeowner. As a result, in new building, builders used aluminum wire. This material is about one-tenth the price of copper wire of equal quality.
In old buildings, however, copper remains the preferred choice. Because aluminum oxidizes when exposed to air and moisture, it needs to be covered with another material to prevent it from turning green or brown. This process is called "encapsulating" the wire. The two most common methods for encapsulation are hot-air welding and liquid sealing.
The advantage of using copper wire is that it can be used over and over again. So instead of replacing the entire network each time you remodel your home, you can reuse the existing wires by simply wrapping them around a plastic tube (called a "jacket") and filling the space inside the jacket with fresh wire. This method is very efficient and less expensive than installing new wiring all the time.
Aluminum wire is much thinner than copper wire of equal quality. This means that more of them are needed to make a circuit. For example, if you were to replace all the copper wire in an old house with aluminum wire of the same size, you would need at least twice as much aluminum cable as there was before.