C- Cathodic area
B � Current flows through the pipe steel from
cathodic area back to anodic area to complete the
circuit.
A � Anodic area: Where current leaves the steel to
enter the surrounding earth steel is being corroded.
D � Current flow through earth from anodic area to
cathodic area.
Cumberland Cathodic Protection Limited
A Subsidiary of Al-Dorra Petroleum Services 
C- Cathodic area
B � Current flows through the pipe steel from
cathodic area back to anodic area to complete the
circuit.
A � Anodic area: Where current leaves the steel to
enter the surrounding earth steel is being corroded.
D � Current flow through earth from anodic area to
cathodic area.