cathodic protection

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cathodic protection

n
(Metallurgy) metallurgy a technique for protecting metal structures, such as steel ships and pipelines, from electrolytic corrosion by making the structure the cathode in a cell, either by applying an electromotive force directly or by putting it into contact with a more electropositive metal. See also sacrificial anode
References in periodicals archive ?
The anode will cathodically protect the gas lines in case there's a problem with the coating.
b) The conducting polymer could functional to cathodically protect the metal (a sacrificial anode).
In addition 110,000 meters and regulators are needed along with repair or replacement of 12 of 14 city gates and 64 of 73 regulator stations plus the entire rectifier system used to cathodically protect the steel piping system.