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Arc Flash and DC current

Discussion in 'General Discussion' started by SafetyDan, Apr 10, 2008.

  1. SafetyDan Junior Level

    If an employee is opening a panel containing 4160v switch gear to open the 250v DC control and then shut the door to hook up a remote rack in device to rack out the breaker or to close the 250v DC control when the breaker is racke in. Is this operator required to wear an Arc Flash suit?
    SafetyDan, Apr 10, 2008
    #1

  2. haze10 Sparks Level

    I would think once you open the door, there is an exposure issue.
    haze10, Apr 10, 2008
    #2

  3. acobb Sparks Level

    I would say that if there is no exposed 4160 when opening the door, and you are killing or heating up the DC, since it is over 50 volts, you might need to consider the exposure from that source, but not the 4160.

    Alan
    acobb, Apr 10, 2008
    #3

  4. Zog Sparks Level


    Agreed, as long as there are barriers.
    Zog, Jun 2, 2008
    #4

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