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Introduction to Cathodic Protection

J. Paul Guyer, P.E., R.A., Fellow ASCE, Fellow AEI

Course Outline

            A.  Purpose
            B.  Corrosion
            C.  Cathodic protection
            D.  Types of cathodic protection systems
            A.  Required information
            B.  Determining type and design of cathodic protection system
              1.  Sacrificial anode (galvanic) cathodic protection system design
              2.  Impressed current cathodic protection system design
            D.  Borrow Areas
            A.  Required current
            B.  Sample test

This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.

Learning Objective

At the conclusion of this course, the student will:

Intended Audience

This course is intended for engineers and other construction professionals with a current or prospective need to understand the fundamentals of protecting underground structures such as tanks and pipelines from corrosion using sacrificial anode and impressed current cathodic protection systems.

Benefit for Attendee

This course will give engineers and others engaged in design of design and maintenance of underground steel structures such as tanks and pipelines an introduction to cathodic protection using sacrificial anode and impressed current systems.

Course Introduction

This is an introduction to the design and application of cathodic protection systems to mitigate corrosion in underground steel structures such as tanks and pipelines.  It includes information about the design of both sacrificial anode and impressed current cathodic protection systems.  It also introduces you to the on-site testing needed in order to acquire the technical information needed to successfully complete the system design.

About Course Author

Paul Guyer is a registered mechanical engineer, civil engineer, fire protection engineer and architect with over 35 years experience in the design of buildings and related infrastructure.  For an additional 9 years he was a senior-level advisor to the California Legislature on infrastructure and capital outlay issues.  He has designed and supervised the design of hundreds of construction projects requiring the preparation of detailed working drawings and specifications for federal, state and local public agencies and private companies.  He is a graduate of Stanford University and has held numerous national, state and local positions with the American Society of Civil Engineers and National Society of Professional Engineers.

Course Content

The following links contain the reference materials for this webinar:

An Introduction to Cathodic Protection (a PDF file, 36 pages, 1.2 MB)

Lecture Slides (PDF file, 27 pages, 0.8 MB)

Please click on the above underlined hypertext to view, download or print the documents for your study. Because of the large file size, we recommend that you first save the file to your computer by right clicking the mouse and choosing "Save Target As ...", and then open the file in Adobe Acrobat Reader. If you still experience any difficulty in downloading or opening this file, you may need to close some applications or reboot your computer to free up some memory.

Because this course is offered as a "live" course, you are required to attend the webinar at the scheduled time and date. Please check the Webinar Schedule under course description on our website for currently scheduled meeting date and time. We will send you an invitation to the webinar through email approximately 24 hours before the webinar (confirmation of the receipt of the invitation is required). The certificate of completion will not be issued unless you attend the webinar and pass a quiz. Thank you for your cooperation.

Course Summary

This course is an introduction to cathodic protection systems design that will allow you to understand the technical fundamentals involved, to address straightforward corrosion protection projects, and will allow you to proceed to an understanding of the technical challenges associated with more complex corrosion protection projects.


Before you attend the webinar, you need to print the quiz questions from your browser (to be used for the discussion during the webinar). At the end of the webinar, you need to complete the quiz and submit your answers to obtain the PDH credit (quiz deadline: midnight on the webinar date).

Take a Quiz

DISCLAIMER: The materials contained in the online course are not intended as a representation or warranty on the part of PDH Center or any other person/organization named herein. The materials are for general information only. They are not a substitute for competent professional advice. Application of this information to a specific project should be reviewed by a registered architect and/or professional engineer/surveyor. Anyone making use of the information set forth herein does so at their own risk and assumes any and all resulting liability arising therefrom.