About the video
This lesson provides practical examples of sizing overcurrent protection devices (OCPD) for motors, focusing on short circuit, ground fault, and overload protection. Using NEC guidelines, you’ll see step-by-step calculations for different motor types and scenarios. The lesson explains the application of tables and code sections to determine correct breaker and fuse sizes, ensuring safe and compliant motor installations. Real-world examples help illustrate how to protect motors from various electrical faults, emphasizing the importance of accurate OCPD sizing. To get started, go to the Lesson Content tab and click on the video.
About the quiz
Each lesson contains a video, and is followed up with a simple quiz. Quizzes review information discussed within the video, with each question providing an answer justification. Helping to reinforce correct answers and helps clarify any mistakes through code citations, excerpts, and explanations, so you can better understand the material.
Charges
Charges are rewards you earn for engaging in our learning system. You receive charges for completing both the video and the quiz in each lesson. The amount of charges available for each lesson is displayed in the “Lesson Features” box on the right. The charges you earn are based on the time it takes you to complete the lesson, which is also indicated in “Lesson Features.”