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Thread: Maximum GF pickup 1200A

  1. #1
    Join Date
    Dec 2016
    Location
    DC
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    67

    Maximum GF pickup 1200A

    Hello,

    I was reading GF protection in NEC section 230.95(A) where it says the maximum setting of the GF protection shall be 1200A.

    Can anyone explain me the reason behind this restriction?

    Thanks...

  2. #2
    Join Date
    Jul 2005
    Location
    Tennessee
    Posts
    15,382
    This article, well above my level of comprehension, will explain that for you, I think.
    http://www.ecmag.com/section/systems...stems-services
    At my age, I'm accustomed to restaurants asking me to pay in advance, but now my bank has started sending me their calendar one month at a time.

  3. #3
    Join Date
    Dec 2016
    Location
    DC
    Posts
    67
    Thanks agie...but i think it doesnt explain why it is set at 1200A...Although they have a blanket statement saying the more you allow the fault current to flow into a system the more damage you are gonna cause... they are citing the NEC reference but didnt explain why it needs to be set at 1200A...

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