A - Originally anodic areas discharging current and
corroding
B- Dotted lines represent lines of current flow which
existed prior to applying protection and which have
been neutralized by the cathodic protection current
C- Protected structure
D- Current flowing from ground bed to surface to protected structure
Cumberland Cathodic Protection Limited
A Subsidiary of Al-Dorra Petroleum Services 
A - Originally anodic areas discharging current and
corroding
B- Dotted lines represent lines of current flow which
existed prior to applying protection and which have
been neutralized by the cathodic protection current
C- Protected structure
D- Current flowing from ground bed to surface to protected structure