Cathodic Protection
"Cathodic protection" is a term used for certain measures taken to prevent or minimize electrolytic corrosion (rust) of metallic equipment and structures.
Cathodic Protection - Galvanic / Sacrificial
Cathodic protection devices redirect current to flow from a "sacrificial" anode to the soils-water electrolyte, instead of from an anode area on a pipeline or other metallic structure to be protected. Doing this helps to extend the length of new and existing offshore platform assets.
Prior to beginning work on equipment protected by an impressed current Cathodic protection system, which uses high current (as much as 400 amps), an authorized person should first determine if the impressed current protection system on electrical equipment should remain on or off.
Knowledge Check Choose the best answer for the question.
1-5. Prior to beginning work on equipment protected by an impressed current cathodic protection system using high current, what should the authorized person do first?
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