About the video
This lesson explains the function and types of circuit breakers, essential for protecting electrical systems from overcurrent and short circuits. You’ll learn about thermal magnetic devices used in homes, which trip due to overloads or short circuits, and explore various breaker types, including miniature circuit breakers (MCB), molded case circuit breakers (MCCB), and specialty breakers like arc-fault, ground-fault, and dual-function breakers. The video details how these devices prevent electrical hazards by disconnecting power during dangerous conditions, ensuring the safety of electrical installations. Understanding the different types of breakers helps in selecting the right protection for various electrical applications. 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.”
