In which scenarios would it be inappropriate to use aluminum conductors?

Using aluminum conductors near water sources can be inappropriate due to aluminum's susceptibility to corrosion when exposed to moisture. Water can accelerate the oxidation process on aluminum, which can lead to increased resistance, heat buildup, and potentially hazardous electrical failures. This is particularly critical in environments where conductors may be exposed to splashes or high humidity, as the moisture can compromise the integrity of the conductor connections, increasing the risk of electrical shorts or fires.

In contrast, aluminum conductors can be used in various other contexts under proper conditions. Indoor usage is generally acceptable, high temperature environments are manageable with careful consideration of thermal ratings, and residential wiring can be implemented safely if installed correctly, considering all necessary precautions to mitigate corrosion and other risks.