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NFPA 79 or UL 508a

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  • NFPA 79 or UL 508a

    Which do you use, NFPA 79 or UL 508a?

    I've been using NFPA 79 for years and feel pretty confident about everything I have built. That said, I have been doing some research on the two standards and how they interrelate and the more I learn, the more confused I get.

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