Published: Jan 1988
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Telephone cable plant is exposed to practically all the corrosive environments that nature can provide. Designers of telephone plant components use various, sometimes galvanically incompatible, metals and alloys to satisfy strength, formability, conductivity, electrical safety, and cost requirements. Galvanic corrosion occurs when galvanically incompatible metallic couples are exposed to corrosive environments. Combinations of small cathode/anode surface area ratios, metallic and nonmetallic coatings, and cathodic protection are some of the means used to eliminate or reduce the harmful effects of galvanic corrosion. Examples of galvanic corrosion problems in the aerial, underground, and buried plant and solutions to these problems are described.
galvanic corrosion, telephone plants, corrosion protection
Member of technical staff, Bell Communications Research, Morristown, NJ