Recent developments in technology, such as the development of cable and equipment that can be directly buried in the ground have made underground installation of electrical service to residential areas easier than ever. Today, many residential subdivisions have all their utilities installed underground, giving a cleaner, more picturesque look to the neighborhood.

This interactive online course is about underground residential distribution systems, also known as URD systems. URD systems are local distribution systems designed primarily to be buried in the ground and serve residential customers.

The purpose of this course is to give you a basic understanding of the common types of URD systems, as well as some of the various components that may be used in a URD system. We’ll also be looking at some of the ways a URD system can be inspected. Finally, we’ll see a demonstration of how a URD system has been set up to allow work to be done on it safely and efficiently.