What should be done if visible rust is found on metallic conduit?

When visible rust is found on metallic conduit, the appropriate action is to inspect further and consider treatment options. This approach allows for a thorough assessment of the extent and severity of the rust damage. It's important to determine whether the rust is superficial, which can often be treated and mitigated, or if it has compromised the integrity of the conduit.

By inspecting the conduit closely, one can identify if the rust is localized or widespread. Treatment options may include cleaning the rusted areas, applying rust inhibitors, or even using protective coatings to prevent further corrosion. This process not only helps in maintaining the overall safety and functionality of the electrical system but can also extend the lifespan of the conduit without the need for premature replacement.

Replacement of the entire conduit system may be necessary in extreme cases where the rust has caused significant deterioration, but this is typically a more drastic measure that should only be taken after a comprehensive assessment. Covering rust with paint could provide temporary aesthetic relief, but it does not address the underlying issue of corrosion and might lead to further complications down the line. Therefore, a careful inspection and consideration of available treatments is the most responsible course of action when facing visible rust on metallic conduit.