๐Ÿ”Œ๐Ÿก Shocking Origins: How GFCIs Were Invented
The Cool Hand Electric Repair Podcast

๐Ÿ”Œ๐Ÿก Shocking Origins: How GFCIs Were Invented

2025-11-17
๐Ÿ”Œ๐Ÿก Shocking Origins: How GFCIs Were Invented In this episode we explore how, in the 1950s, researchers even used college students to test electrical shock thresholds and discovered the importance of milliamps for safety. That research led to ground-fault circuit interrupters (GFCIs), devices designed to trip quickly at specific current levels to prevent harm. The episode explains how GFCIs protect most peopleโ€”often shutting off before a shock is feltโ€”but also notes that very small children with less body mass can still be vulnerable if exposed to electricity without a properly functioning GFCI. ๐ŸŽง Tune in now to learn more about your home's electrical system.
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