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2020 NEC
#637652 07/29/20 02:04 AM
Joined: Dec 2007
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Another 8 hours of code change class consisting of watching/listening to someone reading Powerpoint slides.


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Re: 2020 NEC
Professor Shadow #637653 07/29/20 02:20 AM
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Art 230.67 requires an SPD at the service entrance to protect the (also required) AFCI breakers in the panel which have internal electronics. So don't get warm and fuzzy, they didn't do it for you. I'm also sure "influence" from the manufacturers might have helped getting them written into code, not unlike what happened with those useless AFCI breakers. mad

-Hal

Last edited by hbiss; 07/29/20 02:22 AM.

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