To understand when to apply the requirements of Article 725 for remote-control and signaling circuits, you need to understand the Scope of this article. Watch this video and discover what distinguishes “Class 1” from “Class 2” and “Class 3” circuits and what this article applies to.
This video is an extract from Mike Holt’s Understanding the 2020 National Electrical Code Complete Training Library. For more information about this product visit https://www.MikeHolt.com/code or call 888.632.2633.
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