/ |cathodic| prəˈtekʃn̩ /
Množina reči cathodic protection je cathodic protections.
An electrical system for prevention of rust, corrosion, and pitting of metal surfaces which are in contact with water or soil. A low- voltage current is made to flow through a liquid (water) or a soil in contact with the metal in such a manner that the external electromotive force renders the metal structure cathodic. This concentrates corrosion on auxiliary anodic parts which are deliberately allowed to corrode instead of letting the structure corrode.