Electro-polishing – This technique uses a combination of a blended chemical electrolyte bath and rectified current to remove flaws from surface of an electrical enclosure. This process removes metal instead of moving or wiping it across surface. The distribution box has the characteristics of small size, simple installation, special technical performance, fixed location, unique configuration function, not limited by the site, relatively common application, stable and reliable operation, high space utilization, less land occupation and. The distribution box has the characteristics of small size, simple installation, special technical performance, fixed location, unique configuration function, not limited by the site, relatively common application, stable and reliable operation, high space utilization, less land occupation and. Proper cleaning of electrical enclosures prevents dust, moisture and corrosion ingress, extends lifespan of equipment, improves safety and reliability. Ready to Keep Your Enclosures Clean and Reliable? Cleaning electrical enclosures is key to keeping your equipment safe and reliable. Dust, oil, and. What should I do when there are scratches on the shell of the distribution box? 1.