Code Lesson

Article 338

In Article 338, you'll cover the uses and installation of service entrance (SE) and underground service entrance (USE) cables, covering applications in feeders and branch circuits, physical protection requirements, and adjustments for ampacity when in contact with insulation. Complete the video and the worksheet below​.

Video

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Slides

Advance through the slides from the presentation at your own pace:

Worksheet:

Use the NEC to answer the code questions in the following worksheet.

Complete

Once you've completed the video and quiz, select "Complete and Continue" below to advance to your next lesson!