Are Electrons Really That Smart? NEC 2020 (2min:48sec)
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From a channel a BrighterTube curator vetted · found via Reddit r/electricians thread: Good YouTube channels? · 80% confidenceFrom a channel Lumen includes in full: Mike Holt Enterprises: the leading US National Electrical Code educator, with code-article lessons, exam prep and electrical theory taught by Mike Holt and his instructors; trade education end to end.
A 3-minute video from MikeHoltNEC's catalogue; the title names its topic.
Video by MikeHoltNEC, played through YouTube's embedded player.