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  • Users: chelin
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  1. chelin

    Crane Power Rail Arc Flash Calculation

    Has anyone calculated or know how to calculate the arc flash levels for crane's power rails (i.e. mini-loaders or warehouse automated cranes). My concern is that for a 800 ft long power rail, the arc flash level at the feeder connection point is not going to be the same as at the end of the...
  2. chelin

    Arc Flash Hazard labeling

    Hi, I'm perfoming an arc flash hazard analysis to a facility which is a data center. After giving them the results they came up with a series of requests. They want me to label each ATS's, disconnect switches and transformers. I know that NEC 110.16 and NFPA 70E 400.11 requires to label...

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