Replacement of rusted distribution box

Clean a distribution box when outlets are clogged, but the structure is intact, and the box sits level. Replace it when the box is cracked, tilted beyond repair, or over 30 years old and experiencing recurring failures. These enclosures are fundamental to electrical safety, acting as a barrier that prevents sparks or electrical arcing from reaching flammable wall materials like. Should a panel be so heavily rusted that the metal is eaten through or so badly rusted that it can't be re-painted; then give consideration to replacing the panel or the badly deteriorate parts. Rusted panels may have hazardous conditions on the inside of the panel. Therefore if a panel is rusted. Insulation crumbled...