Cathodic Protection Accessories
Cock Breeze Backfill
Coke breeze is a carbon backfill which is used around impressed current anodes for underground cathodic protection applications. It is used to:
• Reduce the resistivity of the environment surrounding the anode to increase the amount of current the anode can discharge
• Extend the anode surface area, thus increasing the amount of current the anode can discharge
• Reduce consumption of the anode since the carbon becomes part of the anode consumed before the anode itself.
Particle size and shape are also important when specifying a backfill. Both parameters determine the contact area between anode and ground while influencing the porosity of the column, which is important for gas ventilation. A general-purpose coke breeze is for use in shallow horizontal and vertical groundbeds. For closed deep well groundbed, a special calcined petroleum coke breeze is used.
Handy Cap & Primer
Exothermic Welding System
Zinc Earthing Cell
Zinc Earthig Cell consists of two zinc electrodes, insulated from one another. One electrode would typically be connected to the protected structure, the other to an unprotected system. The electrodes are surrounded by low-resistivity backfill allowing large stray currents to pass between them. This enables the structure to be earthed on the ground.