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Aluminum wires can be used in certain applications instead of copper wires, including some electrical wiring in residential and commercial buildings. However, when it comes to appliances like refrigerators and washing machines, copper wires are typically preferred due to their superior electrical conductivity and other properties.

Copper is an excellent conductor of electricity, meaning it can efficiently carry electrical current with minimal resistance. This is particularly important for appliances that require high power or have motors that start and stop frequently, such as refrigerators and washing machines. Copper's high conductivity helps minimize energy loss and ensures the appliances operate efficiently.

Aluminum, on the other hand, has lower electrical conductivity compared to copper. It also has different mechanical properties, such as being more prone to thermal expansion and contraction, which can lead to increased electrical resistance and potential issues with electrical connections over time. These factors make aluminum less ideal for applications that require reliable and efficient electrical performance, especially in appliances where safety and longevity are essential.

While aluminum wiring can be found in some older appliances, modern appliances generally use copper wires to ensure optimal electrical performance and reliability.

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