What a lot of people don't realize is that the foundation for understanding the NEC rules for electrical installations is electrical theory! Whether you're a first-year apprentice still struggling to understand the difference between a volt or ampere, or a veteran electrician trying to sharpen your troubleshooting skills, this product has something for you. We're sharing this clip from the program to introduce you to the importance of this topic. Please feel free to share this with your friends and co-workers, and for more videos and content on this topic, check out our Electrical Theory Video Library that includes the full program and digital textbook.

Click here or on the thumbnail to the left to view or download the PDF of this section. (2 pages, 414 KB) Click on the image above to watch the video Did you know that in the United States an estimated 300 people die each year because of an electrical shock from 120 and 277V circuits? Find out how electricity flowing through the body, especially through the heart, can cause electrocution. Join Mike and a panel of industry experts as they explain the theory behind electric shock. Click on the image to the right to watch the video and be sure to download the PDF to follow along.

For more information on this topic, get a copy of Mike Holt's Understanding Electrical Theory video program and textbook.

• • • We'd love to hear from you about this series, and the ways you're using it. Send us your comments and feedback by clicking on "Post a Comment" below. Look out for the next part in this series a month from now, and please share with your colleagues.