{"podcast":{"title":"Ask Paul | National Electrical Code","slug":"ask-paul-national-electrical-code-4032456","podcast_index_feed_id":4032456,"rss_url":"https://www.spreaker.com/show/4971115/episodes/feed","website_url":"http://www.PaulAbernathy.com","image_url":"https://d3wo5wojvuv7l.cloudfront.net/t_rss_itunes_square_1400/images.spreaker.com/original/2a8cbea0765d2a7266b326d9ccc2a23e.jpg","author":"Paul W. Abernathy","episode_count":343,"summary":"Welcome to Ask Paul the podcast where nationally recognized electrical code experts answer your electrical code-related questions on a weekly podcast. Join us as we answer questions submitted on the www.PaulAbernathy.com website. Get answers from National Electrical Code Panel Members who give their own opinions to answering NEC-related questions. Please be sure to visit https://fasttraxtube.com and subscribe for a FREE ACCOUNT to listen to all our new podcasts starting March 1, 2024. Become a supporter of this podcast: https://www.spreaker.com/podcast/ask-paul-national-electrical-code--4971115/support .","last_synced_at":"2026-09-13T16:17:02.596778+00:00","page_url":"https://stenobird.com/podcast/ask-paul-national-electrical-code-4032456"},"episode":{"title":"The Truth About GFCIs — UL 943, Floating Generators, Bonding & Current Paths","slug":"the-truth-about-gfcis-ul-943-floating-generators-bonding-current-paths","published_at":"2026-08-12T19:56:27+00:00","page_url":"https://stenobird.com/podcast/ask-paul-national-electrical-code-4032456/the-truth-about-gfcis-ul-943-floating-generators-bonding-current-paths","show_page_url":"https://stenobird.com/podcast/ask-paul-national-electrical-code-4032456","url":"https://fasttraxsystem.com","audio_url":"https://dts.podtrac.com/redirect.mp3/api.spreaker.com/download/episode/73860932/masterthenece75.mp3","summary":"The Truth About GFCIs — UL 943, Floating Generators, Bonding & Current PathsThere may be more misconceptions about GFCIs than almost any other electrical safety device. Does a GFCI need an equipment grounding conductor to work? What does the toroidal sensing coil actually monitor? Why might a GFCI behave differently on a truly floating generator? And what happens when a bonded-neutral generator is connected to a dwelling through an interlock where the neutral is not switched? In this episode, Paul Abernathy breaks down the actual operating principles behind UL 943 Class A GFCIs and explains why understanding the current path is far more important than simply memorizing terms like “grounded,” “bonded,” or “floating.” We explore how a GFCI compares current leaving and returning through its monitored conductors, why an equipment grounding conductor is not required for differential-current sensing, and why a GFCI should never be thought of simply as a device that “detects current going to ground.” You'll also learn why a truly floating generator may have little or no first-fault current path, how a second fault can completely change that condition, and why connecting a generator to a dwelling can change its electrical relationship to ground. Then we tackle one of the most misunderstood generator issues in the trade: Bonded neutral vs. floating neutral. If a generator is connected through an interlock or transfer arrangement that does not switch the neutral, the generator neutral remains connected to the dwelling's grounded conductor system. Adding another neutral-to-ground bond at the generator can create parallel paths for normal neutral current through equipment grounding and bonding conductors. We also cover: How a GFCI's toroidal current transformer actually works…","meta_description":"The Truth About GFCIs — UL 943, Floating Generators, Bonding & Current PathsThere may be more misconceptions about GFCIs than almost any other electri…","key_points":[],"chapters":[],"topics":[],"duration_seconds":5416,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/ask-paul-national-electrical-code-4032456/episodes/the-truth-about-gfcis-ul-943-floating-generators-bonding-current-paths/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/ask-paul-national-electrical-code-4032456/the-truth-about-gfcis-ul-943-floating-generators-bonding-current-paths.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}