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Electrical Design - Cathodic Protection Part II Installation and Construction Practices

Bijan Ghayour, P.E.


Course Outline

This 6-hour course provides detailed information on the installation, construction practices, system checkout and initial adjustments, and maintenance of cathodic protection systems. This course also offers methods for economic evaluation of different options available to corrosion control systems designers.

Cathodic protection is an electromechanical method used to prevent or control corrosion of buried or submerged metallic structures. Cathodic protection systems are active systems that rely on the application of electric current to control corrosion. If current is interrupted, corrosion will progress at a normal rate for the material/environment combination; if supplied current is inadequate for complete protection, corrosion will progress at a reduced rate. After a cathodic protection system is installed and adjusted to provide adequate protection, current and potentials should remain relatively stable; changes in currents or potentials indicate the presence of a problem.

This course offers practical guidelines for the proper installation and operation of cathodic protection systems for variety of applications.

Part I of this course, covered in PDH course number E-222, provides detailed information on the basic concepts and fundamentals of the cathodic protection systems, including an understanding of the cathodic protection concepts, cathodic protection system design principals, differences between impressed current and sacrificial anode systems, corrosivity of soils on steel based materials, and provides guidelines and examples for designing cathodic protection systems for underground and above ground structures.

The course materials are based entirely on the military handbook MIL-HDBK-1004/10 of Department of the Army: Electrical Engineering - Cathodic Protection.

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


Learning Objective

The purpose of this course is to provide detailed information on the installation, construction practices, system checkout and initial adjustments, and maintenance of cathodic protection systems.

At the conclusion of the course the student will be familiar with the:


Intended Audience

This course is intended for electrical engineers and maintenance personnel involved in the design, service, maintenance, and upgrade of cathodic protection systems.


Benefit to Attendees

This course presents information on the installation, construction practices, recommended initial system checkout procedures, system maintenance requirements, and operation of cathodic protection systems for the mitigation of corrosion of buried or submerged metallic structures in variety of applications.

This course also provides information on economic evaluation of different system with and without cathodic protection systems, based on factors such as; resource availability, fluctuating operational costs, economic life, and discount rate.


Course Introduction

In most industrial, naval, and utility projects the corrosion of buried or submerged metallic structures will result in various kinds of failures resulting in loss of services and production.

This course provides detailed information on the installation and construction practices, system checkout and initial adjustments, maintenance of cathodic protection systems, and economic analysis of various options available to decision makers.

Part I of this course, covered in PDH course number E-222 provides detailed information on the basic concepts and fundamentals of the cathodic protection systems, including an understanding of the cathodic protection concepts, cathodic protection system design principals, differences between impressed current and sacrificial anode systems, corrosivity of soils on steel based materials, and provides guidelines and examples for designing cathodic protection systems for underground and above ground structures.


Course Content

This course contains recommendations and practical guidelines for the installation, operation, and maintenance of different cathodic protection systems. You are required to study sections 11 through 14 and Appendix A through E of the military handbook MIL-HDBK-1004/10 of Department of the Army USA, ELECTRICAL ENGINEERING CATHODIC PROTECTION:

ELECTRICAL ENGINEERING CATHODIC PROTECTION (PDF 2.8MB)

Please click on the above underlined hypertext to view, download or print the document 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.

ELECTRICAL ENGINEERING CATHODIC PROTECTION

Table of Contents

Section 1- Introduction
Section 2- Cathodic Protection Concepts
Section 3- Criteria for Cathodic Protection
Section 4- Cathodic Protection System Design Principals
Section 5- Precautions for Cathodic Protection System Design
Section 6- Impressed Current System
Section 7- Sacrificial Anode System Design
Section 8- Typical Cathodic Protection
Section 9- Cathodic Protection System Design Examples
Section 10- Installation and Construction Practices
Section 11- System Checkout and Initial Adjustments
Section 12- Maintaining Cathodic Protection
Section 13- Economic Analysis
Section 14- Corrosion Coordination Committee Participation

Appendix A- Underground Corrosion Survey Checklist
Appendix B- Economic Life Guidelines
Appendix C- Project Year Discount Factors
Appendix D- Present Value Formulae
Appendix E- DOT Regulations

Quiz

Once you finish studying the above course content, you need to take a quiz to obtain the PDH credits.

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.