This method uses an external current (or self transfo -rectified), whose negative pole is connected to the structure to be protected (tanks, pipes, etc.). While the positive pole is connected to inert anodes dispersing the current through the electrolyte (soil, filling of the anode, etc.) returning this current to the metal to be protected.
The "SOUL" of this system is the Control Power Unit- CPU- (that constantly monitors the level of corrosion-protection potential of the structure), either MANUAL .- less used, now relegated only to small systems .- AUTOMATIC. - more economical and more widespread today or COMPUTERIZED .- more modern and actual, adjusting at all times its current output to the optimum value of TOTAL PROTECTION.
Although consumable anodes can be used for short periods of protection .- With the passing of time has shifted the anodes normally short-lived (Graphite, Lead-Silver, Silicon-Iron, etc.). By another noble metals anodes such as Titanium-Metallic Oxides .- TiMMOx (Ruthenium Oxides, Iridium Oxides, etc) .- are designed for an operating life of more than 35 years.
Incorporating the control circuit sensors to the reference electrodes - make Impressed Current Cathodic Protection systems, the most efficient and maintenance-free in the fight against corrosion.
We can say that in most cases, these materials have an estimated life very closed to / or greater than the estimated life of the facility (tanks, pipes, platform, etc.)
For more information / offer for the best material that suit to your needs, click on the link incorr@incorr.eu
