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Presenting black-and-white technical concepts in dynamic, living color
Tune in to Mayfield’s short-form video series that explains concepts from the electrical code, the fire code, and other codes and standards affecting solar and energy storage systems. Code Corner videos offer user-friendly summaries of code requirements and their implications for your work.
Code Corner began more than 30 years ago as a recurring column in Home Power magazine, highlighting code changes and the motivations behind them. Mayfield’s Code Corner upholds the high-quality standard of the original while delivering material in a dynamic and engaging format.
Our Most Recent Code Corner
22023 NEC 250.122 Sizing Equipment Grounding Conductors
February 05, 2025
In this edition of Code Corner, Ryan Mayfield explains Article 250.122 in the 2023 NEC, which focuses on sizing equipment grounding conductors. He will guide you through Article 250.122 to understand the requirements for properly sizing grounding conductors. This ensures we are effectively evaluating our circuits and that our equipment grounding conductors are sized appropriately, allowing us to safely bond all of our equipment together. Watch the full Code Corner to learn more.
▶ For more information on the grounding conductor definitions in the diagrams shown in the video, check out our previous Code Corner on NFPA 70B
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Ryan Mayfield
Since 1999, founder Ryan Mayfield has been committed to raising the bar on renewable energy industry best practices.
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