LQ: Cathodic Protection - Abo
Description: Upon completion of this course operating personnel will be able to identify DOT regulations 195.416, 195.432, 195.242, and 195.244 regarding cathodic protection on liquid pipeline systems. The student will be able to list the four conditions that must be met before a corrosion cell can function, describe why and where corrosion on metal structures occurs, state the function of the anodic and cathodic areas and their roles in protecting aboveground steel tanks from metal loss. The student will be able to describe stray (interference) currents and direct current (DC), identify general corrosion, pitting corrosion, and various types of corrosion cells on steel storage tanks, and describe the following two methods used to apply cathodic protection - galvanic (sacrificial) anodes and impressed current systems. The student will be able to state the external corrosion control testing intervals for cathodic protection systems and breakout tank inspections, explain the role insulated (electrical isolation) joints and protective coatings play in cathodic protection efforts, describe the theory of anode operation and the procedure for anode installation. The student will learn how to take measurements for tank bottom-to-soil potential readings while considering the IR drop, take measurements for tank bottom-to-soil potential readings at the center of the tank bottom, and recognize abnormal operating conditions (AOC) related to the performance of rectifier inspections. The student will learn how to react to these abnormal operating conditions.
Objectives:
Duration: 60 min
Language: English
Price: $21.00
Categories: DOT Operator Qualification
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