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  1. Breakerboy

    Arc Flash Blasts, why is the industry so slow to make improvments?

    NFPA 70E's Arc Flash calcs were shown to be faulty 2-3 years ago by IEEE. Since they left out the times associcated with fault detection relays, trip relays and any other vital equipment required to clear a fault. Now that we know we have much higher arc flash energy than the original calcs...

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