About the video
This lesson explores a range of specialized test equipment that electricians might not typically have but can greatly enhance their diagnostic capabilities. You’ll learn about essential tools like miniature voltage testers, circuit tracers, and thermal imagers for identifying hot spots in circuits. The video also covers advanced equipment such as clamp-on ammeters for measuring current, borescopes for inspecting hard-to-reach areas, and meggers for testing insulation integrity. Additionally, you’ll discover the importance of Earth Resistance testers for measuring soil resistance in grounding systems. Understanding these tools and their applications helps electricians perform precise and efficient electrical diagnostics. 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.”