Derek Vigstol, e-Hazard electrical safety consultant, regularly writes monthly articles on the NFPA® 70®, National Electrical Code. They are found in Electrical Contractor magazine and include his article series for 2025, The Wiring Backbone.
Part 7, October 2025 issue – What’s Needed and Where: The Wiring Backbone
Part 6, September 2025 issue – Debunking AFCI Myths: The Wiring Backbone
Part 5, August 2025 issue – GFCI Mythbusting: A Quick Review of the Basic Concepts
Part 4, July 2025 issue – Sizing Conductors for the Load: The Wiring Backbone
Part 3, June 2025 issue – Branch Circuit Conductor Sizes: The Wiring Backbone
Part 2, May 2025 issue – Working in Color: The Wiring Backbone
Part 1, April 2025 issue – The Wiring Backbone: Branch Circuits and Feeders
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