Beginning with a general discussion of lightning, this course covers the theory of what causes overvoltages on an electric distribution power system.  The electrical characteristics of lightning are covered and well as the importance of ground flash density.

The different types of arresters are reviewed including the design, operation, and electrical protection characteristics.  Methods to design and protect an electric distribution line to minimize the impacts of lightning are covered including structure design considerations.  Protection of underground electrical lines is also covered. 

The impact of grounding on overvoltage is discussed including a brief discussion of ferroresonant overvoltages.

After taking this course the learner should,

• Understand the lightning flash mechanism
• Know the electrical characteristics of lightning
• Understand the importance of ground flash density
• Understand the basics of arrester design
• Know how an arrester operates
• Know the various types of lightning arresters
• Know how to protect electric utility equipment from overvoltages
• Understand the theory of line shielding
• Know how to apply arresters to overhead electric utility lines
• Know how to protect underground electric utility lines