The use of an anti-oxidant on the lugs is considered what?

Using an anti-oxidant on electrical lugs is considered "not necessarily a defect" because it is often a beneficial practice rather than a requirement. Anti-oxidant compounds help prevent oxidation on the surface of metal connections, which can lead to corrosion and poor electrical conductivity over time. While it is not mandatory to apply anti-oxidants, doing so can enhance the longevity and reliability of the electrical connections.

It's important to recognize that while the presence of an anti-oxidant is not indicative of a defect, the absence of it does not automatically signal a significant problem unless the lugs show clear signs of corrosion or poor connection. Therefore, using an anti-oxidant can be seen as good preventive maintenance rather than a necessity, defect, or a significant issue, which highlights the nuanced understanding of electrical systems and their upkeep.