What is a common consequence of using aluminum conductors in residential wiring?

Using aluminum conductors in residential wiring can lead to an increased fire risk, which is a significant concern. Aluminum does not conduct electricity as efficiently as copper, leading to higher resistive losses. This can result in overheating at connections if not properly installed and maintained. Additionally, aluminum is more prone to oxidation, which can further increase resistance and heat generation at junctions and terminals. Such heat buildup can potentially ignite surrounding materials, posing a fire hazard.

While aluminum wiring is often less expensive than copper, and some may argue it has lower cost benefits, these factors do not outweigh the safety concerns associated with increased fire risk. Moreover, although aluminum wiring can be installed to meet efficiency standards, the inherent properties of aluminum make it less favorable in terms of conductivity compared to copper, which is a key consideration in wiring applications.