Technical Articles

Corrosion in Overhead Cable

Galvanic corrosion

When two metallic materials are in contact in the presence of an electrolyte, conditions are ideal for galvanic corrosion to take place. Corrosion will increase on the least noble material (anode) and decrease on the noblest (cathode). The rate of corrosion depends on the potential difference between the materials, the surface area of the connected materials and the electrical resistance of the galvanic circuit.

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