In which scenario should alcohol spray not be used for ice removal?

Using alcohol spray for ice removal around electrical components is not advisable due to the flammable nature of alcohol. When alcohol comes into contact with electrical components, it poses a significant risk of ignition, potentially leading to electrical fires or damage to the components. The presence of electricity can create a hazardous environment, especially when combined with any form of liquid.

In addition to this critical safety issue, other scenarios might have their own risks, but they do not inherently have the same level of immediate danger as using alcohol directly on electrical components. For example, while using alcohol on plastic sight glasses might cause some degradation, this is less immediately hazardous than the risk posed by flammable materials near electricity. Similarly, the presence of high pressure or other chemicals might warrant caution, but the main concern with flammability and potential ignition makes electrical components a clear scenario where alcohol should not be utilized.