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Table 130.7(C)(9) - MV Equipment

Discussion in 'NFPA 70E - Standard for Electrical Safety in the W' started by coloradog1, Feb 17, 2010.

  1. coloradog1 New Member

    Hi guys. All of the equipment under 600V specifies what fault current and clearing time were used to determine the hazard categories in the table by referencing a note shown at the end of the table.

    However, all of the medium voltage tables for equipment over 600V has no mention of a note. Does anyone know what values where used to determine the hazard categories shown in the table for MV equipment? I don't see how you can use the table for MV equipment if you can't confirm that your specific fault current and clearing time is less than the value they used. I have searched through the code and have been unsuccesful in finging anything.

    If anyone can enlighten me I would appreciate it.
    coloradog1, Feb 17, 2010
    #1

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